Journal of Intelligent & Fuzzy Systems - Volume 40, issue 5

Authors: Bao, Jun

Article Type: Research Article

Abstract: The dual generalized Bonferroni mean (DGBM) operator is a meaningful decision-making tool which can consider the relationship between any numbers of being fused arguments and has been applied to many MAGDM domains in past few years. The intuitionistic fuzzy sets (IFSs), which is characterized by the functions of membership degree and non-membership degree, has been investigated by numerous scholars. In this manuscript, combine the DGBM operator and IFSs, the major contribution and objective of the work is to develop two new aggregation operators: the dual generalized intuitionistic fuzzy BM (DGIFBM) operator and the dual generalized intuitionistic fuzzy weighted BM (DGIFWBM) …operator. The last, we give an application example for evaluating the green technological innovation ability of the enterprises and some comparative analysis to testify the effective and scientific of our developed methods. Show more

Keywords: Multiple attribute group decision making (MAGDM), intuitionistic fuzzy sets (IFSs), DGBM operator, DGIFBM operator, DGIFWBM operator, green technological innovation ability of the enterprises

DOI: 10.3233/JIFS-202194

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9687-9707, 2021

Authors: Xu, Di | Wang, Zhili

Article Type: Research Article

Abstract: This paper proposes a better semi-supervised semantic segmentation network using an improved generative adversarial network. It is important for the discriminator on the pixel level to know whether it correctly distinguishes the predicted probability map. However, currently there is no correlation between the actual credibility and the confidence map generated by the pixel-level discriminator. We study this problem and a new network is proposed, which includes one generator and two discriminators. One of the discriminators can output more reliable confidence maps on the pixel level and the other is trained to generate the probability on the image level, which is …used as the dynamic threshold in the semi-supervised module instead of being set manually. In addition, the trusted region shared by the two discriminators is used to provide the semi-supervised reference. Through experiments on the PASCAL VOC 2012 and Cityscapes datasets, the proposed network brings better gains, proving the effectiveness of the network. Show more

Keywords: Semi-supervise semantic segmentation, generative adversarial network, confidence map

DOI: 10.3233/JIFS-202220

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9709-9719, 2021

Authors: Ayyub, Kashif | Iqbal, Saqib | Nisar, Muhammad Wasif | Ahmad, Saima Gulzar | Munir, Ehsan Ullah

Article Type: Research Article

Abstract:  Sentiment analysis is the field that analyzes sentiments, and opinions of people about entities such as products, businesses, and events. As opinions influence the people’s behaviors, it has numerous applications in real life such as marketing, politics, social media etc. Stance detection is the sub-field of sentiment analysis. The stance classification aims to automatically identify from the source text, whether the source is in favor, neutral, or opposed to the target. This research study proposed a framework to explore the performance of the conventional (NB, DT, SVM), ensemble learning (RF, AdaBoost) and deep learning-based (DBN, CNN-LSTM, and RNN) machine learning …techniques. The proposed method is feature centric and extracted the (sentiment, content, tweet specific and part-of-speech ) features from both datasets of SemEval2016 and SemEval2017. The proposed study has also explored the role of deep features such as GloVe and Word2Vec for stance classification which has not received attention yet for stance detection. Some base line features such as Bag of words, N-gram, TF-IDF are also extracted from both datasets to compare the proposed features along with deep features. The proposed features are ranked using feature ranking methods such as (information gain, gain ration and relief-f). Further, the results are evaluated using standard performance evaluation measures for stance classification with existing studies. The calculated results show that the proposed feature sets including sentiment, (part-of-speech, content , and tweet specific) are helpful for stance classification when applied with SVM and GloVe a deep feature has given the best results when applied with deep learning method RNN. Show more

Keywords: Stance classification, deep learning, deep features, sentiment analysis, content based

DOI: 10.3233/JIFS-202269

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9721-9740, 2021

Authors: Xu, Junxiang | Guo, Jingni | Sun, Yongdong | Tang, Qiuyu | Zhang, Jin

Article Type: Research Article

Abstract: We not only firstly applied the theory of hub-and-spoke network to the field of integrated transportation network planning, but also combined our proposed method with Sichuan-Tibet railway, one of super large projects in China, to discuss the optimization and the layout of hub-and-spoke integrated transportation network along the Sichuan-Tibet railway after it is put into operation in the future and put forward some directional policy recommendations. In our study, we have made clear the topological structure of the multi hub and single allocation hybrid hub-and-spoke integrated transportation network in the passenger transportation corridors, established the integer programming model aiming at …the minimum generalized travel cost in the network, and we designed the simulated annealing algorithm to solve this problem. In the empirical study, we find that if 5 nodes are selected as hub nodes in hub-and-spoke integrated transportation network, the generalized cost of network travel will be minimized and these specific location of 5 hub nodes can be determined by the selecting principle of hub nodes location, which we proposed in our study. The simulated annealing algorithm can help us to find the connection relationship between nodes. Then we can achieve three types of hub-and-spoke integrated transportation network layout patterns with railway, highway and aviation as the hub nodes. Though further comparative analysis, we find that it is more feasible to choose the integrated transportation network with railway nodes as the hub in transportation organization. Based on this understanding, we put forward policy recommendations on transportation organization to support high-quality planning and operation of integrated transportation network to Sichuan Tibet region in China in the future. Show more

Keywords: Sichuan-Tibet railway, comprehensive transportation network, multiple hubs and single allocation, simulated annealing algorithm

DOI: 10.3233/JIFS-202276

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9741-9763, 2021

Authors: Liu, Fang | Liu, Yi | Abdullah, Saleem

Article Type: Research Article

Abstract: Based on decision theory rough sets (DTRSs), three-way decisions (TWDs) provide a risk decision method for solving multi-attribute decision making (MADM) problems. The loss function matrix of DTRS is the basis of this method. In order to better solve the uncertainty and ambiguity of the decision problem, we introduce the q-rung orthopair fuzzy numbers (q-ROFNs) into the loss function. Firstly, we introduce concepts of q-rung orthopair fuzzy β -covering (q-ROF β -covering) and q-rung orthopair fuzzy β -neighborhood (q-ROF β -neighborhood). We combine covering-based q-rung orthopair fuzzy rough set (Cq-ROFRS) with the loss function matrix of DTRS in the q-rung …orthopair fuzzy environment. Secondly, we propose a new model of q-ROF β -covering DTRSs (q-ROFCDTRSs) and elaborate its relevant properties. Then, by using membership and non-membership degrees of q-ROFNs, five methods for solving expected losses based on q-ROFNs are given and corresponding TWDs are also derived. On this basis, we present an algorithm based on q-ROFCDTRSs for MADM. Then, the feasibility of these five methods in solving the MADM problems is verified by an example. Finally, the sensitivity of each parameter and the stability and effectiveness of these five methods are compared and analyzed. Show more

Keywords: Covering-based q-rung orthopair fuzzy rough sets, q-ROF β-covering decision-theoretic rough sets, q-ROF β-neighborhood, MADM, DTRSs

DOI: 10.3233/JIFS-202291

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9765-9785, 2021

Authors: YE, Lv | Yang, Yue | Zeng, Jian-Xu

Article Type: Research Article

Abstract: The existing recommender system provides personalized recommendation service for users in online shopping, entertainment, and other activities. In order to improve the probability of users accepting the system’s recommendation service, compared with the traditional recommender system, the interpretable recommender system will give the recommendation reasons and results at the same time. In this paper, an interpretable recommendation model based on XGBoost tree is proposed to obtain comprehensible and effective cross features from side information. The results are input into the embedded model based on attention mechanism to capture the invisible interaction among user IDs, item IDs and cross features. The …captured interactions are used to predict the match score between the user and the recommended item. Cross-feature attention score is used to generate different recommendation reasons for different user-items.Experimental results show that the proposed algorithm can guarantee the quality of recommendation. The transparency and readability of the recommendation process has been improved by providing reference reasons. This method can help users better understand the recommendation behavior of the system and has certain enlightenment to help the recommender system become more personalized and intelligent. Show more

Keywords: Intelligent recommendation, interpretability, XGBoost, attention mechanism, cross feature

DOI: 10.3233/JIFS-202308

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9787-9798, 2021

Authors: Ahmed, Dliouah | Dai, Binxiang

Article Type: Research Article

Abstract: In this paper, we give a new notion of the picture m-polar fuzzy sets (Pm-PFSs) (i.e, combination between the picture fuzzy sets (PFSs) and the m-polar fuzzy sets (m-PFSs)) and study several of the structure operations including subset, equal, union, intersection, and complement. After that, the basic definitions, theorems, and examples on Pm-PFSs are explained. Also, the certain distance between two Pm-PFSs and a novel similarity measure for Pm-PFSs based on distances are defined. MCDM is animated for Pm-PFS data that take into account the distances for the best alternative (solution) by proposed an application of similarity measure for Pm-PFSs …in decision-making. Finally, we construct a new methodology to extend the TOPSIS to Pm-PFS in which capable of different objects recognizing belonging to the same family and illustrate its applicability via a numerical example. Show more

Keywords: Picture m-polar fuzzy set, distance measure, similarity measure, decision-making, multi-expert TOPSIS technique

DOI: 10.3233/JIFS-202309

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9799-9814, 2021

Authors: Akram, Muhammad | Shahzadi, Gulfam | Butt, Muhammad Arif | Karaaslan, Faruk

Article Type: Research Article

Abstract: Soft set (S f S ) theory is a basic tool to handle vague information with parameterized study during the process as compared to fuzzy as well as q -rung orthopair fuzzy theory. This research article is devoted to establish some general aggregation operators (AOs), based on Yager’s norm operations, to cumulate the q -rung orthopair fuzzy soft data in decision making environments. In this article, the valuable properties of q -rung orthopair fuzzy soft set (q  - ROFS f S ) are merged with the Yager operator to propose four new operators, namely, q -rung orthopair fuzzy soft …Yager weighted average (q  - ROFS f YWA ), q -rung orthopair fuzzy soft Yager ordered weighted average (q  - ROFS f YOWA ), q -rung orthopair fuzzy soft Yager weighted geometric (q  - ROFS f YWG ) and q -rung orthopair fuzzy soft Yager ordered weighted geometric (q  - ROFS f YOWG ) operators. The dominant properties of proposed operators are elaborated. To emphasize the importance of proposed operators, a multi-attribute group decision making (MAGDM) strategy is presented along with an application in medical diagnosis. The comparative study shows superiorities of the proposed operators and limitations of the existing operators. The comparison with Pythagorean fuzzy TOPSIS (PF-TOSIS) method shows that PF-TOPSIS method cannot deal with data involving parametric study but developed operators have the ability to deal with decision making problems using parameterized information. Show more

Keywords: q-rung orthopair fuzzy soft numbers, Yager operators, aggregation operators, TOPSIS method

DOI: 10.3233/JIFS-202336

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9815-9830, 2021

Authors: Zhao, Fuqiang | Zhu, Zhengyu | Han, Ping

Article Type: Research Article

Abstract: To measure semantic similarity between words, a novel model DFRVec that encodes multiple semantic information of a word in WordNet into a vector space is presented in this paper. Firstly, three different sub-models are proposed: 1) DefVec: encoding the definitions of a word in WordNet; 2) FormVec: encoding the part-of-speech (POS) of a word in WordNet; 3) RelVec: encoding the relations of a word in WordNet. Then by combining the three sub-models with an existing word embedding, the new model for generating the vector of a word is proposed. Finally, based on DFRVec and the path information in WordNet, a …new method DFRVec+Path to measure semantic similarity between words is presented. The experiments on ten benchmark datasets show that DFRVec+Path can outperform many existing methods on semantic similarity measurement. Show more

Keywords: Semantic similarity, WordNet, word embedding, POS, synset

DOI: 10.3233/JIFS-202337

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9831-9842, 2021

Authors: Bai, Luyi | Li, Nan | Liu, Lishuang | Hao, Xuesong

Article Type: Research Article

Abstract: With the rapid development of the environmental, meteorological and marine data management, fuzzy spatiotemporal data has received considerable attention. Even though some achievements in querying aspect have been made, there are still some unsolved problems. Semantic and structural heterogeneity may exist among different data sources, which will lead to incomplete results. In addition, there are ambiguous query intentions and conditions when the user queries the data. This paper proposes a fuzzy spatiotemporal data semantic model. Based on this model, the RDF local semantic models are converted into a RDF global semantic model after mapping relational data and XML data to …RDF local semantic models. The existing methods mainly convert relational data to RDF Schema directly. But our approach converts relational data to XML Schema and then converts it to RDF, which utilizes the semi-structured feature of XML schema to solve the structural heterogeneity between different data sources. The integration process enables us to perform global queries against different data sources. In the proposed query algorithms, the query conditions inputted are converted into exact queries before the results are returned. Finally, this paper has carried out extensive experiments, calculated the recall , precision and F-Score of the experimental results, and compared with other state-of-the-art query methods. It shows the importance of the data integration method and the effectiveness of the query method proposed in this paper. Show more

Keywords: Data integration, fuzzy query, fuzzy spatiotemporal data, RDF semantic model

DOI: 10.3233/JIFS-202357

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9843-9854, 2021

Authors: Guo, Shunsheng | Gao, Yuji | Guo, Jun | Yang, Zhijie | Du, Baigang | Li, Yibing

Article Type: Research Article

Abstract: With the aggravation of market competition, strategic supplier is becoming more and more critical for the success of manufacturing enterprises. Suppler selection, being the critical and foremost activity must ensure that selected suppliers are capable of supporting the long-term development of organizations. Hence, strategic supplier selection must be restructures considering the long-term relationships and prospects for sustainable cooperation. This paper proposes a novel multi-stage multi-attribute group decision making method under an interval-valued q-rung orthopair fuzzy linguistic set (IVq-ROFLS) environment considering the decision makers’ (DMs) psychological state in the group decision-making process. First, the initial comprehensive fuzzy evaluations of DMs are …represented as IVq-ROFLS. Subsequently, two new operators are proposed for aggregating different stages and DMs’ preferences respectively by extending generalized weighted averaging (GWA) to IVq-ROFLS context. Later, a new hamming distance based linear programming method based on entropy measure and score function is introduced to evaluate the unknown criteria weights. Additionally, the Euclidean distance is employed to compute the gain and loss matrix, and objects are prioritized by extending the popular Prospect theory (PT) method to the IVq-ROFLS context. Finally, the practical use of the proposed decision framework is validated by using a strategic supplier selection problem, as well as the effectiveness and applicability of the framework are discussed by using comparative analysis with other methods. Show more

Keywords: Strategic supplier selection, multi-stage multi-attribute group decision making, interval-valued q-rung orthopair fuzzy linguistic set, hamming distance based linear programming, prospect theory

DOI: 10.3233/JIFS-202415

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9855-9871, 2021

Authors: Ejegwa, Paul Augustine | Wen, Shiping | Feng, Yuming | Zhang, Wei | Chen, Jia

Article Type: Research Article

Abstract: Pythagorean fuzzy set is a reliable technique for soft computing because of its ability to curb indeterminate data when compare to intuitionistic fuzzy set. Among the several measuring tools in Pythagorean fuzzy environment, correlation coefficient is very vital since it has the capacity to measure interdependency and interrelationship between any two arbitrary Pythagorean fuzzy sets (PFSs). In Pythagorean fuzzy correlation coefficient, some techniques of calculating correlation coefficient of PFSs (CCPFSs) via statistical perspective have been proposed, however, with some limitations namely; (i) failure to incorporate all parameters of PFSs which lead to information loss, (ii) imprecise results, and (iii) less …performance indexes. Sequel, this paper introduces some new statistical techniques of computing CCPFSs by using Pythagorean fuzzy variance and covariance which resolve the limitations with better performance indexes. The new techniques incorporate the three parameters of PFSs and defined within the range [-1, 1] to show the power of correlation between the PFSs and to indicate whether the PFSs under consideration are negatively or positively related. The validity of the new statistical techniques of computing CCPFSs is tested by considering some numerical examples, wherein the new techniques show superior performance indexes in contrast to the similar existing ones. To demonstrate the applicability of the new statistical techniques of computing CCPFSs, some multi-criteria decision-making problems (MCDM) involving medical diagnosis and pattern recognition problems are determined via the new techniques. Show more

Keywords: Intuitionistic fuzzy set, Pythagorean fuzzy set, medical diagnosis, pattern recognition, medical diagnosis, correlation coefficient measure

DOI: 10.3233/JIFS-202469

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9873-9886, 2021

Authors: Wang, Jian | Zhu, Yuanguo

Article Type: Research Article

Abstract: Uncertain delay differential equation is a class of functional differential equations driven by Liu process. It is an important model to describe the evolution process of uncertain dynamical system. In this paper, on the one hand, the analytic expression of a class of linear uncertain delay differential equations are investigated. On the other hand, the new sufficient conditions for uncertain delay differential equations being stable in measure and in mean are presented by using retarded-type Gronwall inequality. Several examples show that our stability conditions are superior to the existing results.

Keywords: Uncertainty theory, uncertain delay differential equation, analytic solution, stability

DOI: 10.3233/JIFS-202507

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9887-9897, 2021

Authors: Darabi, M. | Allahviranloo, T.

Article Type: Research Article

Abstract: According to a huge interest in implementation of the fuzzy Volterra integral equations, especially the second kind, researchers have been investigating to solve such equations using numerical methods since analytical ones might not be accessible usually. In this research paper, we introduce a new approach based on Fibonacci polynomials collocation method to numerically solve them. Several properties of such polynomials were considered to implement in the collocation method due to approximate the solution of the second kind of fuzzy Volterra integral equations. We approved the existence, uniqueness of the solution, convergence and the error analysis of the proposed method in …detail. In order to show the authenticity and applicability of the proposed method, we employed several illustrative examples. The numerical results show that the convergence and precision of the recent method were in a good settlement with the exact solution. Also, the calculations of the suggested method are simple and low computational complexity in respect to other methods as an advantage feature of the presented approach. Show more

Keywords: Fuzzy Volterra integral equation, Fibonacci polynomial, collocation method

DOI: 10.3233/JIFS-202523

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9899-9914, 2021

Authors: Liu, Peide | Wang, Xiyu | Teng, Fei

Article Type: Research Article

Abstract: In today’s education industry, online teaching is increasingly becoming an important teaching way, and it is necessary to evaluate the quality of online teaching so as to improve the overall level of the education industry. The online teaching quality evaluation is a typical multi-attribute group decision-making (MAGDM) problem, and its evaluation index can be expressed by linguistic term sets (LTSs) by decision makers (DMs). Especially, multi-granularity probabilistic linguistic term sets (MGPLTSs) produced from many DMs are more suitable to express complex fuzzy evaluation information, and they can not only provide different linguistic term set for different DMs the give their …preferences, but also reflect the importance of each linguistic term. Based on the advantages of MGPLTSs, in this paper, we propose a transformation function of MGPLTSs based on proportional 2-tuple fuzzy linguistic representation model. On this basis, the operational laws and comparison rules of MGPLTSs are given. Then, we develop a new Choquet integral operator for MGPLTSs, which considers the relationship among attributes and does not need to consider the process of normalizing the probabilistic linguistic term sets (PLTSs), and can effectively avoid the loss of evaluation information. At the same time, the properties of the proposed operator are also proved. Furthermore, we propose a new MAGDM method based on the new operator, and analyze the effectiveness of the proposed method by online teaching quality evaluation. Finally, by comparing with some existing methods, the advantages of the proposed method are shown. Show more

Keywords: Multiple-attribute group decision-making, online teaching quality evaluation, multi-granularity probabilistic linguistic term sets, Choquet integral

DOI: 10.3233/JIFS-202543

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9915-9935, 2021

Authors: Mama, Rachid | Machkour, Mustapha

Article Type: Research Article

Abstract:  Nowadays several works have been proposed that allow users to perform fuzzy queries on relational databases. But most of these systems based on an additional software layer to translate a fuzzy query and a supplementary layer of a classic database management system (DBMS) to evaluate fuzzy predicates, which induces an important overhead. They are not also easy to implement by a non-expert user. Here we have proposed a simple and intelligent approach to extend the SQL language to allow us to write flexible conditions in our queries without the need for translation. The main idea is to use a view …to manipulate the satisfaction degrees related to user-defined fuzzy predicates, instead of calculating them at runtime employing user functions embedded in the query. Consequently, the response time of executing a fuzzy query statement will be reduced. This approach allows us to easily integrate most fuzzy request characters such as fuzzy modifiers, fuzzy quantifiers, fuzzy joins, etc. Moreover, we present a user-friendly interface to make it easy to use fuzzy linguistic values in all clauses of a select statement. The main contribution of this paper is to accelerate the execution of fuzzy query statements. Show more

Keywords: Fuzzy query, fuzzy logic, fuzzy SQL, relational database, user interface

DOI: 10.3233/JIFS-202551

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9937-9948, 2021

Authors: Zhang, Wei Min | Zhang, Long | Zhang, Zheyu | Sun, Mingjun

Article Type: Research Article

Abstract: With the many varieties of AI hardware prevailing on the market, it is often hard to decide which one is the most suitable to use but not only with the best performance. As there is an industry-wide trend demand for deep learning deployment, the inference benchmark for the effectiveness of DNN processor becomes important and is of great help to select and optimize AI hardware. To systematically benchmark deep learning deployment platforms, and give more objective and useful metrics comparison. In this paper, an end to end benchmark evaluation system was brought up called IBD, it combined 4 steps include …three components with 6 metrics. The performance comparison results are obtained from the chipsets from Qualcomm, HiSilicon, and NVIDIA, which can provide hardware acceleration for AI inference. To comprehensively reflect the current status of the DNN processor deploying performance, we chose six devices from three kinds of deployment scenarios which are cloud, desktop and mobile, ten models from three different kinds of applications with diverse characteristics are selected, and all these models are trained from three major training frameworks. Several important observations were made by using our methodologies. Experimental results showed that workload diversity should focus on the difference came from training frameworks, inference frameworks with specific processors, input size and precision (floating and quantized). Show more

Keywords: AI, deep neural network processor, benchmark, end to end, inference

DOI: 10.3233/JIFS-202552

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9949-9961, 2021

Authors: Ding, Xiangwen | Wang, Shengsheng

Article Type: Research Article

Abstract: Melanoma is a very serious disease. The segmentation of skin lesions is a critical step for diagnosing melanoma. However, skin lesions possess the characteristics of large size variations, irregular shapes, blurring borders, and complex background information, thus making the segmentation of skin lesions remain a challenging problem. Though deep learning models usually achieve good segmentation performance for skin lesion segmentation, they have a large number of parameters and FLOPs, which limits their application scenarios. These models also do not make good use of low-level feature maps, which are essential for predicting detailed information. The Proposed EUnet-DGF uses MBconv to implement …its lightweight encoder and maintains a strong encoding ability. Moreover, the depth-aware gated fusion block designed by us can fuse feature maps of different depths and help predict pixels on small patterns. The experiments conducted on the ISIC 2017 dataset and PH2 dataset show the superiority of our model. In particular, EUnet-DGF only accounts for 19% and 6.8% of the original Unet in terms of the number of parameters and FLOPs. It possesses a great application potential in practical computer-aided diagnosis systems. Show more

Keywords: Skin lesion segmentation, dermoscopic images, deep learning, Unet, gated fusion

DOI: 10.3233/JIFS-202566

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9963-9975, 2021

Authors: Saleem, Naeem | Işık, Hüseyin | Furqan, Salman | Park, Choonkil

Article Type: Research Article

Abstract: In this paper, we introduce the concept of fuzzy double controlled metric space that can be regarded as the generalization of fuzzy b -metric space, extended fuzzy b -metric space and controlled fuzzy metric space. We use two non-comparable functions α and β in the triangular inequality as: M q ( x , z , t α ( x , y ) + s β ( y , z ) ) ≥ M q ( x , y , t ) ∗ M q ( y , z , s ) . …We prove Banach contraction principle in fuzzy double controlled metric space and generalize the Banach contraction principle in aforementioned spaces. We give some examples to support our main results. An application to existence and uniqueness of solution for an integral equation is also presented in this work. Show more

Keywords: Extended fuzzy b-metric space, controlled fuzzy metric space, fixed point

DOI: 10.3233/JIFS-202594

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9977-9985, 2021

Authors: Wang, Junbin | Qin, Zhongfeng

Article Type: Research Article

Abstract: The hub maximal covering location problem aims to find the best locations for hubs so as to maximize the total flows covered by predetermined number of hubs. Generally, this problem is defined in the framework of binary coverage. However, there are many real-life cases in which the binary coverage assumption may yield unexpected decisions. Thus, the partial coverage is considered by stipulating that the coverage of an origin-destination pair is determined by a non-increasing decay function. Moreover, as this problem contains strategic decisions in long range, the precise information about the parameters such as travel times may not be obtained …in advance. Therefore, we present uncertain hub maximal covering location models with partial coverage in which the travel times are depicted as uncertain variables. Specifically, the partial coverage parameter is introduced in uncertain environment and the expected value of partial coverage parameter is further derived and simplified with specific decay functions. Expected value model and chance constrained programming model are respectively proposed and transformed to their deterministic equivalent forms. Finally, a greedy variable neighborhood search heuristic is presented and the efficiency of the proposed models is evaluated through computational experiments. Show more

Keywords: Hub maximal covering location problem, partial coverage, decay function, uncertain variable

DOI: 10.3233/JIFS-202635

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 9987-10002, 2021

Authors: Gan, Zibang | Zeng, Biqing | Cheng, Lianglun | Liu, Shuai | Yang, Heng | Xu, Mayi | Ding, Meirong

Article Type: Research Article

Abstract: In multi-turn dialogue generation, dialogue contexts have been shown to have an important influence on the reasoning of the next round of dialogue. A multi-turn dialogue between two people should be able to give a reasonable response according to the relevant context. However, the widely used hierarchical recurrent encoder-decoder model and the latest model that detecting the relevant contexts with self-attention are facing the same problem. Their given response doesn’t match the identity of the current speaker, which we call it role ambiguity. In this paper, we propose a new model, named RoRePo, to tackle this problem by detecting the …role information and relative position information. Firstly, as a part of the decoder input, we add a role embedding to identity different speakers. Secondly, we incorporate self-attention mechanism with relative position representation to dialogue context understanding. Besides, the design of our model architecture considers the influence of latent variables in generating more diverse responses. Experimental results of our evaluations on the DailyDialog and DSTC7_AVSD datasets show that our proposed model advances in multi-turn dialogue generation. Show more

Keywords: Dialogue system, natural language generation, multi-turn dialogue, deep learning

DOI: 10.3233/JIFS-202641

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10003-10015, 2021

Authors: Akram, Muhammad | Shumaiza,

Article Type: Research Article

Abstract:  The q -rung picture fuzzy sets serve the fuzzy set theory as a competent, broader and accomplished extension of q -rung orthopair fuzzy sets and picture fuzzy sets which exhibit excellent performance in modeling the obscure data beyond the limits of existing approaches owing to the parameter q and three real valued membership functions. The accomplished strategy of VIKOR method is established on the major concepts of regret measure and group utility measure to specify the compromise solution. Further, TOPSIS method is another well established multi-criteria decision-making strategy that finds out the best solution with reference to the distances …from ideal solutions. In this research study, we propose the innovative and modified versions of VIKOR and TOPSIS techniques using the numerous advantages of q -rung picture fuzzy information for obtaining the compromise results and rankings of alternatives in decision-making problems with the help of two different point-scales of linguistic variables. The procedure for the entropy weighting information is adopted to compute the normal weights of attributes. The q -rung picture fuzzy VIKOR (q -RPF VIKOR) method utilizes ascending order to rank the alternatives on the basis of maximum group utility and minimum individual regret of opponent. Moreover, a compromise solution is established by scrutinizing the acceptable advantage and the stability of decision. In the case of TOPSIS technique, the distances of alternatives to ideal solutions are determined by employing the Euclidean distance between q -rung picture fuzzy numbers. The TOPSIS method provides the ranking of alternatives by considering the descending order of closeness coefficients. For explanation, the presented methodologies are practiced to select the right housing society and the suitable industrial robot. The comparative results of the proposed techniques with four existing approaches are also presented to validate their accuracy and effectiveness. Show more

Keywords: q-Rung picture fuzzy numbers, VIKOR, TOPSIS, entropy weight information, decision-making

DOI: 10.3233/JIFS-202646

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10017-10042, 2021

Authors: Shi, Xiaoping | Zou, Shiqi | Song, Shenmin | Guo, Rui

Article Type: Research Article

Abstract:  The asset-based weapon target assignment (ABWTA) problem is one of the important branches of the weapon target assignment (WTA) problem. Due to the current large-scale battlefield environment, the ABWTA problem is a multi-objective optimization problem (MOP) with strong constraints, large-scale and sparse properties. The novel model of the ABWTA problem with the operation error parameter is established. An evolutionary algorithm for large-scale sparse problems (SparseEA) is introduced as the main framework for solving large-scale sparse ABWTA problem. The proposed framework (SparseEA-ABWTA) mainly addresses the issue that problem-specific initialization method and genetic operators with a reward strategy can generate solutions efficiently …considering the sparsity of variables and an improved non-dominated solution selection method is presented to handle the constraints. Under the premise of constructing large-scale cases by the specific case generator, two numerical experiments on four outstanding multi-objective evolutionary algorithms (MOEAs) show Runtime of SparseEA-ABWTA is faster nearly 50% than others under the same convergence and the gap between MOEAs improved by the mechanism of SparseEA-ABWTA and SparseEA-ABWTA is reduced to nearly 20% in the convergence and distribution. Show more

Keywords: Weapon target assignment, multi-objective optimization, evolutionary algorithm, reward strategy, non-dominated solution selection

DOI: 10.3233/JIFS-202679

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10043-10061, 2021

Authors: Wang, Jing | Yang, Yichuan

Article Type: Research Article

Abstract: We introduce rough approximations into basic algebras. After investigating elementary properties of the upper (lower) approximations in basic algebras and discussing the convexity of these two approximations in linearly ordered basic algebras, we generalize related results for MV-algebras, lattice ordered effect algebras, and orthomodular lattices to basic algebras. We also study the relationship between upper (lower) rough ideals of basic algebras and upper (lower) approximations of their homomorphic images.

Keywords: Basic algebras, rough approximations, rough ideals, homomorphic images, 03G25, 06B10

DOI: 10.3233/JIFS-202699

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10063-10071, 2021

Authors: Pang, Zhicheng | Li, Hong | Wang, Chiyu | Shi, Jiawen | Zhou, Jiale

Article Type: Research Article

Abstract: In practice, the class imbalance is prevalent in sentiment classification tasks, which is harmful to classifiers. Recently, over-sampling strategies based on data augmentation techniques have caught the eyes of researchers. They generate new samples by rewriting the original samples. Nevertheless, the samples to be rewritten are usually selected randomly, which means that useless samples may be selected, thus adding this type of samples. Based on this observation, we propose a novel balancing strategy for text sentiment classification. Our approach takes word replacement as foundation and can be divided into two stages, which not only can balance the class distribution of …training set, but also can modify noisy data. In the first stage, we perform word replacement on specific samples instead of random samples to obtain new samples. According to the noise detection, the second stage revises the sentiment of noisy samples. Toward this aim, we propose an improved term weighting called TF-IGM-CW for imbalanced text datasets, which contributes to extracting the target rewritten samples and feature words. We conduct experiments on four public sentiment datasets. Results suggest that our method outperforms several other resampling methods and can be integrated with various classification algorithms easily. Show more

Keywords: Imbalanced text sentiment classification, resampling, noise modification, data augmentation, word replacement

DOI: 10.3233/JIFS-202716

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10073-10086, 2021

Authors: Jiang, Bichuan | Shu, Lan

Article Type: Research Article

Abstract: In this paper, we study the evolutionary game dynamics of the death-birth process with interval payoffs on graphs. First of all, we derive the interval replication dynamic equation. Secondly, we derive the fixation probability of the B-C prisoner’s dilemma game based on the death-birth process under the condition of weak selection, analyze the condition of the strategy fixed in the population, that is the condition of strategy A being dominant is analyzed. So we can judge whether natural selection is beneficial to strategy A in the game process through this condition. Finally, the feasibility of this method is …verified by several examples. Show more

Keywords: Interval-valued functions, death-birth process, fixation probability, evolutionary dynamics

DOI: 10.3233/JIFS-202774

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10087-10098, 2021

Authors: Lai, Xiaocong | Li, Hua | Pan, Ying

Article Type: Research Article

Abstract: With the increasing attention to the environment and air quality, PM2.5 has been paid more and more attention. It is expected to excavate useful information in meteorological data to predict air pollution, however, the air quality is greatly affected by meteorological factors, and how to establish an effective air quality prediction model has always been a problem that people urgently need to solve. This paper proposed a combined model based on feature selection and Support Vector Machine (SVM) for PM2.5 prediction. Firstly, aiming at the influence of meteorological factors on PM2.5, a feature selection method based on linear causality is …proposed to find out the causality between features and select the features with strong causality, so as to remove the redundant features in air pollution data and reduce the workload of data analysis. Then, a method based on SVM is proposed to analyze and solve the nonlinear problems in the data, for reducing the prediction error, a method of particle swarm optimization is also used to optimize SVM parameters. Finally, the above methods are combined into a prediction model, which is suitable for the current air pollution control. 12 representative data sets on the UCI (University of California, Irvine) website are used to verify the combined model, and the experimental results show that the model is feasible and effective. Show more

Keywords: Feature selection, linear regression, support vector machine, combined forecasting model, PM2.5 prediction

DOI: 10.3233/JIFS-202812

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10099-10113, 2021

Authors: Jiang, Zhiwei | Wei, Guiwu | Wu, Jiang | Chen, Xudong

Article Type: Research Article

Abstract: With the development of society, people’s living standard is constantly improving. Meanwhile, people need various food to satisfy their needs in daily life. Under this situation, more and more food enterprises are appearing in the market. However, some issues about food safety come out. Because of the huge number of food company, managers are difficult in achieving profitability. Therefore, some of the managers try to use some unhealthy materials to produce food in the society. So, it is important for people to distinguish healthy and unhealthy food enterprises in their daily life. In order to help government discern and control …the quality of healthy food enterprises in the market, we need to propose an effective evaluation system in estimating food enterprises. In this paper, we introduce a method of evaluating the quality degree of food enterprises which can help us to distinguish enterprises effectively. As we all know, the method of TODIM is widely used in multiple attribute decision making (MADM). In this article, we describe the extended TODIM which based on the cumulative prospect theory (CPT) with picture fuzzy numbers (PF-CPT-TODIM) and use it to evaluate food companies. What’s more, we use entropy method to decide the weights of various attributes. Finally, we select optimal enterprise by using the PF-CPT-TODIM method. Furthermore, we use the comparison of the results of classical PF-TODIM method and PFWA operators to test the availability of PF-CPT-TODIM. It not only can enrich decision-making methods but also make up for the traditional PF-TODIM method in considering the psychological aspects of decision makers. Show more

Keywords: Multiple attribute group decision making (MAGDM), CPT-TODIM, picture fuzzy sets (PFSs), food enterprise, quality credit evaluation

DOI: 10.3233/JIFS-202839

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10115-10128, 2021

Authors: Zuo, Jiankai | Zhang, Yaying

Article Type: Research Article

Abstract: In the field of intelligent robot engineering, whether it is humanoid, bionic or vehicle robots, the driving forms of standing, moving and walking, and the consciousness discrimination of the environment in which they are located have always been the focus and difficulty of research. Based on such problems, Naive Bayes Classifier (NBC), Support Vector Machine(SVM), k-Nearest-Neighbor (KNN), Decision Tree (DT), Random Forest (RF) and eXtreme Gradient Boosting (XGBoost) were introduced to conduct experiments. The six individual classifiers have an obvious effect on a particular type of ground, but the overall performance is poor. Therefore, the paper proposes a “Novel Hybrid …Evolutionary Learning” method (NHEL) which combines every single classifier by means of weighted voting and adopts an improved genetic algorithm (GA) to obtain the optimal weight. According to the fitness function and evolution times, this paper designs the adaptively changing crossover and mutation rate and applies the conjugate gradient (CG) to enhance GA. By making full use of the global search capabilities of GA and the fast local search ability of CG, the convergence speed is accelerated and the search precision is upgraded. The experimental results show that the performance of the proposed model is significantly better than individual machine learning and ensemble classifiers. Show more

Keywords: Hybrid classification model, improved GA, machine learning, ground recognition

DOI: 10.3233/JIFS-202940

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10129-10143, 2021

Authors: Khoshaim, Ahmad Bakr | Qiyas, Muhammad | Abdullah, Saleem | Naeem, Muhammad | Muneeza,

Article Type: Research Article

Abstract: This article is an advanced approach to picture fuzzy set through the application of cubic set theory. For instance, we establish the idea of the picture cubic fuzzy sets (PCFSs) theory and define several operations for PCFS. Also, presented some weighted aggregation operators under picture cubic fuzzy information, so called picture cubic fuzzy weighted averaging (PCFWA) operator, picture cubic fuzzy order weighted averaging (PCFOWA) operator, picture cubic fuzzy weighted geometric (PCFWG) operator, and picture cubic fuzzy order weighted geometric (PCFOWG) operator. Further, we study their fundamental properties and showed the relationship among these aggregation operators. In order to determine the …feasibility and practicality of the mentioned new technique, we developed multi-attribute group decision -making algorithm with picture cubic fuzzy environment. Further, the developed method applied to supply chain management and for implementation, consider numerical application of supply chain management. Compared the developed approach with other preexisting aggregation operators, and we concluded that the defined technique is better, reliable and effective. Show more

Keywords: Picture cubic fuzzy sets, picture cubic fuzzy average aggregation operators, picture cubic fuzzy geometric aggregation operators, multi-attribute decision-making

DOI: 10.3233/JIFS-200194

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10145-10162, 2021

Authors: Khudoyberdiev, Azimbek | Ullah, Israr | Kim, DoHyeun

Article Type: Research Article

Abstract: Remarkable resource management and energy efficiency improvements can be achieved in greenhouses using innovative technological advancements and modern agricultural methods. Deployment of Internet of Things (IoT) and optimization algorithms in greenhouse farming is highly desirable for real-time monitoring and controlling various parameters with optimal solutions. However, IoT based greenhouses require more energy as compared to traditional farming. This paper proposes an optimal greenhouse water supplement mechanism with efficient energy consumption based on IoT and optimization techniques. The first contribution of this study is to gather the actual water and soil moisture levels from the greenhouse and tank using IoT devices. …Secondly, the formulation and deployment of an objective function to compute the optimal water and soil moisture levels for greenhouse and tank based on user-desired settings, the system constraints and actual sensing values. We applied a rule-based expert system to activate water pumps with the required flow rate and operational duration to achieve efficient energy consumption. To prove the effectiveness of the proposed concept, embedded IoT devices and objective function for optimization are deployed as well as, a number of experiments are conducted to provide the optimal water and soil moisture levels in a real greenhouse and water tank environment. Show more

Keywords: Internet of Things (IoT), objective function, optimization, water tank, energy efficiency, rule-based expert systems

DOI: 10.3233/JIFS-200618

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10163-10182, 2021

Authors: Mortaji, Seyed Taha Hossein | Noori, Siamak | Bagherpour, Morteza

Article Type: Research Article

Abstract: Earned value management is well-known as the most efficient method of project monitoring and control providing relatively reliable information about the project performance. However, this method requires accurate estimates of the progress of project activities, which are always associated with uncertainties that, if ignored or not addressed well, lead to incorrect results. To address this issue, the application of multi-valued logic, in particular fuzzy logic, in earned value management has recently attracted a lot of attention both in practice and research. This paper introduces directed earned value management (DEVM) in which ordered fuzzy numbers are used to express the so-called …uncertainties as well as to capture more information about the trend of the project progress. To evaluate the performance of the proposed method, several numerical examples and a case study are presented. The results reveal that compared to the existing methods, DEVM has a lower computational complexity. Also, it doesn’t suffer from the overestimation effect and as a result, it has a higher ability to express project-specific dynamics. In sum, the proposed method allows project managers to make informed decisions that lead to taking preventive and corrective actions promptly and at a lower cost. Show more

Keywords: Earned value management, fuzzy earned value management, fuzzy performance indicators, ordered fuzzy numbers, directed earned value management

DOI: 10.3233/JIFS-201248

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10183-10196, 2021

Authors: Zhang, Haowen | Dong, Yabo | Xu, Duanqing

Article Type: Research Article

Abstract: Time series classification is a fundamental problem in the time series mining community. Recently, many sophisticated methods which can produce state-of-the-art classification accuracy on the UCR archive have been proposed. Unfortunately, most of them are parameter-laden methods and require fine-tune for different datasets. Besides, training these classifiers is very computationally demanding, which makes them difficult to use in many real-time applications and previously unseen datasets. In this paper, we propose a novel parameter-light algorithm, MDTW, to classify time series. MDTW has a few parameters which do not require any fine-tune and can be chosen arbitrarily because …the classification accuracy is largely insensitive to the parameters. MDTW has no training step; thus, it can be directly applied to unseen datasets. MDTW is based on a popular method, namely the nearest neighbor classifier with Dynamic Time Warping (NN-DTW). However, MDTW performs much faster than NN-DTW by representing time series in different resolutions and using filters-and-refine framework to find the nearest neighbor. The experimental results demonstrate that MDTW performs faster than the state-of-the-art, with small losses (<3%) in average classification accuracy. Besides, we embed a technique, prunedDTW, into the MDTW procedure to make MDTW even faster, and show by experiments that this combination can speed up the MDTW from one to five times. Show more

Keywords: Time series classification, Dynamic Time Warping, nearest neighbor, multilevel representations, filters-and-refine

DOI: 10.3233/JIFS-201281

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10197-10210, 2021

Authors: Xiao, Yanjun | Yu, Anqi | Qi, Hao | Jiang, Yunfeng | Zhou, Wei | Gao, Nan | Liu, Weiling

Article Type: Research Article

Abstract: In the industrial field, the lithium battery industry has a long history and a large market scale. Lithium battery electrode strip rolling mill belongs to the high-end production equipment in the lithium battery industry. However, due to its complex structure, the tension of lithium battery electrode mill is prone to large fluctuation. This will lead to the phenomenon of wrinkle and looseness, which will affect the quality of the electrode strip. At present, the tension control method of lithium battery electrode mill mostly adopts traditional Proportional-Integral-Differential(PID) control. Under this control mode, the production speed and precision of lithium battery electrode …mill need to be improved. In this paper, the fuzzy PID tension control method of lithium battery electrode mill based on genetic optimization is studied. Based on fuzzy theory and PID control method, a tension fuzzy PID model is established for experimental verification, and the initial parameters and fuzzy rules of fuzzy PID are optimized by Genetic Algorithm(GA). This method has better stability, can improve the precision of strip tension control, make the tension more stable when the rolling mill is running, and help to improve the quality of electrode strip production. Show more

Keywords: Fuzzy theory, genetic algorithm, lithium battery electrode mill, PID, tension

DOI: 10.3233/JIFS-201675

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10211-10234, 2021

Authors: Chen, Yan | song, Huan-sheng | yang, Yan-ni | wang, Gang-feng

Article Type: Research Article

Abstract: Mixture production equipment is widely employed in road construction, and the quality of the produced mixture is the essential factor to ensure the quality of road construction. To detect the quality of the real-time produced mixture and solve the shortcomings of laboratory detection lag, a new fault detection method in the mixture production process is proposed, which is based on wavelet packet decomposition (WPD) and support vector machine (SVM). The proposed scheme includes feature extraction, feature selection, SVM classification, and optimization algorithm. During feature extraction, wavelet basis function is utilized to 4-layer decompose the aggregate and asphalt data mixed in …real-time. The energy value calculated by wavelet packet coefficient is the extracted feature. During feature selection, a method combining the chi-square test and wrapper (CSW) is conducted to select the optimal feature subset from WPD features. Eventually, by adopting the optimal feature subset, SVM has been developed to classify various faults. Its parameters are optimized by differential evolution (DE) algorithm. In the test stage, multiple faults of different specifications of aggregates and asphalt are detected in the mixture production process. The results demonstrate that (1) accuracy produced by the CSW method with WPD features is 4.33% higher than the PCA method with statistical features; (2) SVM classification method optimized by DE algorithm brings an increase in recognition accuracy of identifying different types of mixture production faults produced by different equipment. Compared to other available methods, the proposed algorithm has a very outstanding detection performance. Show more

Keywords: Mixture production process, fault detection, wavelet packet decomposition (WPD) features, support vector machine (SVM), differential evolution (DE)

DOI: 10.3233/JIFS-201803

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10235-10249, 2021

Authors: Zhang, Zhenghang | Jia, Jinlu | Wan, Yalin | Zhou, Yang | Kong, Yuting | Qian, Yurong | Long, Jun

Article Type: Research Article

Abstract: The TransR model solves the problem that TransE and TransH models are not sufficient for modeling in public spaces, and is considered a highly potential knowledge representation model. However, TransR still adopts the translation principles based on the TransE model, and the constraints are too strict, which makes the model’s ability to distinguish between very similar entities low. Therefore, we propose a representation learning model TransR* based on flexible translation and relational matrix projection. Firstly, we separate entities and relationships in different vector spaces; secondly, we combine our flexible translation strategy to make translation strategies more flexible. During model training, …the quality of generating negative triples is improved by replacing semantically similar entities, and the prior probability of the relationship is used to distinguish the relationship of similar coding. Finally, we conducted link prediction experiments on the public data sets FB15K and WN18, and conducted triple classification experiments on the WN11, FB13, and FB15K data sets to analyze and verify the effectiveness of the proposed model. The evaluation results show that our method has a better improvement effect than TransR on Mean Rank, Hits@10 and ACC indicators. Show more

Keywords: Knowledge representation, flexible translation, relation matrix projection, link prediction, triple classification

DOI: 10.3233/JIFS-202177

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10251-10259, 2021

Authors: Hu, Miao | Peng, Junjie | Zhang, Wenqiang | Hu, Jingxiang | Qi, Lizhe | Zhang, Huanxiang

Article Type: Research Article

Abstract: Intent recognition is one of the most essential foundations as well as a very challenging task for language understanding, especially for spoken language. As spoken text is short, and lack of full context. Moreover, it may mix multi-language forms. These non-standard spoken expressions further lead to the shortage of text information. In consideration that sparse text information seriously affects the effect of intention understanding, a multi-feature fusion-based intent recognition model for the bilingual phenomenon mixed with Chinese and English is proposed. Combining word2vec and multilingual wordNets with the same synset_id (synonym set id), the model can mask the differences between …different languages. Meanwhile, it can enrich the information representation of the spoken text by fusing the word intention features with the context-dependent features represented by transformer as well as the word frequency features. To verify the correctness and effectiveness of the model, extensive experiments were conducted on a real online logistics customer service platform and SMP2018-ECDT dataset. The results show that our model is superior to other models. And it improves the accuracy of intent recognition in logistics data by 20% compared with that of transformer. Show more

Keywords: Intent recognition, word intent feature, context dependency, wordNet

DOI: 10.3233/JIFS-202365

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10261-10272, 2021

Authors: Mirsadeghpour Zoghi, S.M. | Sanei, M. | Tohidi, G. | Banihashemi, Sh. | Modarresi, N.

Article Type: Research Article

Abstract: According to modern finance theory and increasing need for efficient investments, we evaluate the portfolio performance based on the data envelopment analysis method. By the fact that stock market’s return distributions usually exhibit skewness, kurtosis and heavy-tails, we consider some appropriate underlying distributions that affect the input and output of the model. In this regard, the multivariate skewed t and the multivariate generalized hyperbolic as the heavy-tailed distributions of Normal mean-variance mixture are applied. The models are inspired by the Range Directional Measure (RDM) model to deal with negative values. The value-at-risk (VaR) and conditional VaR (CVaR) as risk …measures are used in these optimization problems. We estimate the parameters of such distributions by Expectation Maximization algorithm. Then we present an empirical investigation to measure the relative efficiency of two sets of seven groups of companies from different industries of Iran stock exchange market. By comparing the results of introduced models with previous RDM approach, we show that how well the distribution of assets affect the performance evaluation. Show more

Keywords: Data envelopment analysis, normal mean-variance mixture distributions, portfolio optimization, VaR, CVaR

DOI: 10.3233/JIFS-202332

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10273-10283, 2021

Authors: Li, Xin | Li, Xiaoli | Wang, Kang

Article Type: Research Article

Abstract: In the past two decades, multi-objective evolutionary algorithms (MOEAs) have achieved great success in solving two or three multi-objective optimization problems. As pointed out in some recent studies, however, MOEAs face many difficulties when dealing with many-objective optimization problems(MaOPs) on account of the loss of the selection pressure of the non-dominant candidate solutions toward the Pareto front and the ineffective design of the diversity maintenance mechanism. This paper proposes a many-objective evolutionary algorithm based on vector guidance. In this algorithm, the value of vector angle distance scaling(VADS) is applied to balance convergence and diversity in environmental selection. In addition, tournament …selection based on the aggregate fitness value of VADS is applied to generate a high quality offspring population. Besides, we adopt an adaptive strategy to adjust the reference vector dynamically according to the scales of the objective functions. Finally, the performance of the proposed algorithm is compared with five state-of-the-art many-objective evolutionary algorithms on 52 instances of 13 MaOPs with diverse characteristics. Experimental results show that the proposed algorithm performs competitively when dealing many-objective with different types of Pareto front. Show more

Keywords: Vector angle distance scaling, evolutionary algorithm, many-objective optimization problem

DOI: 10.3233/JIFS-202724

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10285-10306, 2021

Authors: Gan, Weichao | Ma, Zhengming | Liu, Shuyu

Article Type: Research Article

Abstract: Tensor data are becoming more and more common in machine learning. Compared with vector data, the curse of dimensionality of tensor data is more serious. The motivation of this paper is to combine Hilbert-Schmidt Independence Criterion (HSIC) and tensor algebra to create a new dimensionality reduction algorithm for tensor data. There are three contributions in this paper. (1) An HSIC-based algorithm is proposed in which the dimension-reduced tensor is determined by maximizing HSIC between the dimension-reduced and high-dimensional tensors. (2) A tensor algebra-based algorithm is proposed, in which the high-dimensional tensor are projected onto a subspace and the projection coordinate …is set to be the dimension-reduced tensor. The subspace is determined by minimizing the distance between the high-dimensional tensor data and their projection in the subspace. (3) By combining the above two algorithms, a new dimensionality reduction algorithm, called PDMHSIC, is proposed, in which the dimensionality reduction must satisfy two criteria at the same time: HSIC maximization and subspace projection distance minimization. The proposed algorithm is a new attempt to combine HSIC with other algorithms to create new algorithms and has achieved better experimental results on 8 commonly-used datasets than the other 7 well-known algorithms. Show more

Keywords: Dimensionality reduction, tensor mode product, hilbert-schmidt independence criterion, reproducing kernel hilbert space

DOI: 10.3233/JIFS-202582

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10307-10322, 2021

Authors: Kreinovich, Vladik

Article Type: Book Review

DOI: 10.3233/JIFS-189732

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10323-10324, 2021

Authors: Kosheleva, Olga | Kreinovich, Vladik

Article Type: Book Review

DOI: 10.3233/JIFS-189733

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10325-10327, 2021

Authors: Kosheleva, Olga | Kreinovich, Vladik

Article Type: Book Review

DOI: 10.3233/JIFS-189734

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10329-10330, 2021

Authors: Chen, Hongxia

Article Type: Correction

DOI: 10.3233/JIFS-210001

Citation: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 5, pp. 10331-10331, 2021