Journal of Intelligent & Fuzzy Systems - Volume 38, issue 5

Authors: Shakir, Hina | Rasheed, Haroon | Rasool Khan, Tariq Mairaj

Article Type: Research Article

Abstract:  Machine learning methods with quantitative imaging features integration have recently gained a lot of attention for lung nodule classification. However, there is a dearth of studies in the literature on effective features ranking methods for classification purpose. Moreover, optimal number of features required for the classification task also needs to be evaluated. In this study, we investigate the impact of supervised and unsupervised feature selection techniques on machine learning methods for nodule classification in Computed Tomography (CT) images. The research work explores the classification performance of Naive Bayes and Support Vector Machine(SVM) when trained with 2, 4, 8, 12, 16 …and 20 highly ranked features from supervised and unsupervised ranking approaches. The best classification results were achieved using SVM trained with 8 radiomic features selected from supervised feature ranking methods and the accuracy was 100%. The study further revealed that very good nodule classification can be achieved by training any of the SVM or Naive Bayes with a fewer radiomic features. A periodic increment in the number of radiomic features from 2 to 20 did not improve the classification results whether the selection was made using supervised or unsupervised ranking approaches. Show more

Keywords: Quantitative imaging features, radiomic features, nodule classification, machine learning, feature selection algorithms

DOI: 10.3233/JIFS-179672

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5847-5855, 2020

Authors: Ashraf, Muhammad Waseem | Manzoor, Saher | Shahzad Sarfraz, Muhammad | Wasim, Muhammad Faisal | Ali, Basit | Akhlaq, Maham | Rujita, Ciurea | Popa, Alexandru

Article Type: Research Article

Abstract: Nano porous anodized aluminum oxide is fabricated in acidic electrolyte using two step anodization process with varied potential and etching time. Pore diameter of the fabricated membrane increases with increasing the voltage and time of etching. The rate of pore opening of the membrane is established and optimized. Morphology of the membrane is studied by SEM micrographs and quantitative analysis is done by EDX. The pore size was in the range of 85–140 nm. Also the simulation and analysis for varied parameters is done using Fuzzy Logic Controller and it was observed that the simulated and value of pore diameter calculated …using Mamdani’s model are approximately equal with minute percentage error. The AAO membrane have potential applications in biotechnology. Show more

Keywords: AAO, fuzzy analysis, pore diameter, etching time, voltage

DOI: 10.3233/JIFS-179673

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5857-5864, 2020

Authors: Sarwar, Ghulam | Ashraf, Muhammad Waseem

Article Type: Research Article

Abstract: Fuzzy logic has been considered as a viable method for every field of study because of its large number of applications and advantages. In nano-materials, structural knowledge of material and parametric estimation can be studied using fuzzy logic. The main objective of this work is to perform fuzzy logic analyis for parametric estimation of Zinc oxide (ZnO) nano-rods based structures. The zinc oxide nano-rods when prepared with doped metal that results in change in properties of Zinc oxide nano-rods. These properties include structural, optical, mechanical and electrical properties of ZnO nano-rods. The enhancement in properties make the doped ZnO based …material suitable for energy harvesting, bio-medical, energy and electronics application. Literature depicts the effect of 2nd group elements on ZnO nano-particles which directly shows the effect of change of parameters due to change in doping concentration. In this work, the analysis of effect on bandgap and rod diameter due to change in doping concentration and synthesis time is performed on ZnO nano-rods with doping 2nd group elements. The authors concluded that the synthesis time increase the rod diameter which directly decreases the bandgap. However, the doping concentration of 2nd group elements results in increase in band gap and decrease in rod diameter. However this effect is negligible for Mg and Be due to there small atomic size. The comparison between fuzzy logic simulation and mamdani model were also analysed which shows an error of less than 1% between the value. The 2nd group doped ZnO nano-rods can be used for various application due to adjustable band-gap and rod diameter with change in doping concentration. Show more

Keywords: Zinc oxide, fuzzy analysis, magnesium, calcium, beryllium, strontium

DOI: 10.3233/JIFS-179674

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5865-5875, 2020

Authors: Sodhar, Irum Naz | Jalbani, Akhtar Hussain | Buller, Abdul Hafeez | Channa, Muhammad Ibrahim | Hakro, Dil Nawaz

Article Type: Research Article

Abstract: Sentiment Analysis have also an important role in natural language processing to evaluate and analyzing the public opinion, sentiments and views about social activities such as product, services, Academic institutes, organizations etc. Lot of work has been done on English language in natural language processing. However, it is found out from the literature that still huge research gap is available for the Romanized Sindhi and there sentiment analysis in the field of natural language processing and also no any trained data is available for the testing. Classification of sentiment of Romanized Sindhi text is very difficult task. For the evaluation …of sentiment of Romanized Sindhi text easily available online Python tool were used. In this research work thousand words of Romanized Sindhi text/data were used for the sentiment classification. Also discussed issues in sentiment classification in Python tool on Romanized Sindhi text. Show more

Keywords: Sentiment analysis, natural language processing (NLP), dataset, Romanized Sindhi, Python

DOI: 10.3233/JIFS-179675

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5877-5883, 2020

Authors: Tayyaba, Shahzadi | Ashraf, Muhammad Waseem | Tariq, Muhamamd Imran | Nazir, Mohsin | Afzulpurkar, Nitin | Balas, Marius M. | Mihalache, Sanda Florentina

Article Type: Research Article

Abstract: Computers have been used in different areas of medical technology and applications. Innovation in the field of tehnology has been considered as a fundamental consitutent of medical discipline. Advancement in the field of medical and health care results in an ease for disease diagnostic, reduction in risk of diseases and lessen pain which is eventually beneficial to human life. In this work, the designing and effect of skin puncturing of micro-needle was studied. The simulations for skin puncturing was performed in ANSYS and MATLAB fuzzy logic tool. The skin puncturing using needle based on human skin coatings including dermis, stratum …corneum and viable epidermis was studied. Fuzzy logic analysis was use to study the effect of effect of applied stress and tip diameter of the needle on the three layers of skin. A 3D model of human skin layer and needle was created in ANSYS and studied for an applied force of 0.4 to 0.9 N. Thinner the tip diameter of the needle, more penetration and puncturing of skin will occur. Similarly, for applied skin, more stress is required for proper puncturing of stratum corneum layer of human skin. The microfluidic analysis performed in the CFX environment of ANSYS shows that at the driving pressure of 140 kPa, 415μ L/min flow rate has been achieved. Show more

Keywords: Fuzzy logic, ANSYS, microneedle, skin insertion

DOI: 10.3233/JIFS-179676

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5885-5895, 2020

Authors: Duddu, Vasisht | Rajesh Pillai, N. | Rao, D. Vijay | Balas, Valentina E.

Article Type: Research Article

Abstract:  Applications using Artificial Intelligence techniques demand a thorough assessment of different aspects of trust, namely, data and model privacy, reliability, robustness against adversarial attacks, fairness, and interpretability. While each of these aspects has been extensively studied in isolation, an understanding of the trade-offs between different aspects of trust is lacking. In this work, the trade-off between fault tolerance, privacy, and adversarial robustness is evaluated for Deep Neural Networks, by considering two adversarial settings under security and a privacy threat model. Specifically, this work studies the impact of training the model with input noise (Adversarial Robustness) and gradient noise (Differential Privacy) …on Neural Network’s fault tolerance. While adding noise to inputs, gradients or weights enhances fault tolerance, it is observed that adversarial robustness lowers fault tolerance due to increased overfitting. On the other hand, (ε dp , δ dp )-Differentially Private models enhance the fault tolerance, measured using generalisation error, which theoretically has an upper bound of e ε dp  - 1 + δ dp . This novel study of the trade-offs between different aspects of trust is pivotal for training trustworthy Machine Learning models. Show more

Keywords: Trustworthy machine learning, differential privacy, fault tolerance, adversarial robustness, deep learning

DOI: 10.3233/JIFS-179677

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5897-5907, 2020

Authors: Roy, Sanjiban Sekhar | Paraschiv, Nicolae | Popa, Mihaela | Lile, Ramona | Naktode, Ishan

Article Type: Research Article

Abstract: Air pollution is one of the major environmental concerns in recent time. The majority of the population in the developed world live in urban area, hence air pollution concern is even more in cities. The worst gaseous pollutants are Caron Monoxide (CO), Nitrogen dioxide (NO2) and OZONE (O3). In this paper, we propose two predictive models for estimation of concentration of gases in the air, namely Carbon Monoxide (CO), Nitrogen dioxide (NO2) and OZONE (O3). The first proposed model is a combination of linear regression and Genetic Algorithm (GA). The second proposed model estimates concentration of gasses using Multivariable Polynomial …Regression. First model uses a linear regression for prediction of concentration of gases, whereby errors like MAPE, R2 obtained by linear regression are optimized using a genetic algorithm (GA). Multivariable Polynomial Regression is adopted as a second proposed method for the prediction of concentration of same gases. A detailed comparative study has been carried out on the performances of GA and Multivariable Polynomial Regression. In addition, predictive equations are formed for CO, O3 and NO2 based on temperature, relative humidity, benzene and Nox (oxides of nitrogen). Show more

Keywords: Concentration of gases, genetic algorithm, polynomial regression, air quality

DOI: 10.3233/JIFS-179678

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5909-5919, 2020

Authors: Mundra, Ankit | Mundra, Shikha | Srivastava, Jai Shanker | Gupta, Punit

Article Type: Research Article

Abstract: Cryptography is the study of techniques which used to transforms the original text (plain text) to cipher text (non understandable text). Due to recent progress on digitized data exchange in electronic way, information security has become crucial in data storage and transmission. Some of the cryptographic algorithm has provided a promising solution which not only protects the data but also authenticates the systems and its participants, so the threat of various attacks is minimized. Nonetheless in the advancement of computing resources the cryptanalysis techniques also emerged and performing competitively in the field of information security with good results. In this …paper, we have proposed the optimized deep neural network approach for cryptanalysis of symmetric encryption algorithm 64-bit DES (Data encryption standard). Our approach has used back propagation technique with multiple hidden layers and advanced activation function also we have addressed the problem of vanishing gradient. Further, the implementation results show that we have achieved 90% accuracy which is significantly higher as compared to previous approaches. We have also compared the proposed technique with the existing ones against three parameters i.e. time, loss, accuracy. Show more

Keywords: Cryptography, encryption, decryption, plaintext, cipher text, DES

DOI: 10.3233/JIFS-179679

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5921-5931, 2020

Authors: Tariq, Muhammad Imran | Tayyaba, Shahzadi | Ali Mian, Natash | Sarfraz, Muhammad Shahzad | Hussain, Akhtar | Imran, Muhammad | Pricop, Emil | Cangea, Otilia | Paraschiv, Nicolae

Article Type: Research Article

Abstract: Fuzzy logic has wide adoption in every field of study due to its immense advantages and techniques. In cloud computing, there are many challenges that can be resolved with the help of fuzzy logic. The core objective of this paper is to analyze the application of fuzzy logic in most demanding research areas of cloud computing. We also analyzed the fuzzy methods that were used in the solving of problems relates to cloud computing. A systematic literature review was conducted to enlist the all the challenging areas of research relates to cloud computing, categorized the most critical and challenging areas …of cloud research, studied existing problem-solving techniques of each challenging cloud area, and finally studied the application of fuzzy logic in each aforementioned areas to redress different problems. The authors concluded that fuzzy logic can be used in every area of research including cloud computing to solve the problems and optimized the performance, as well as fuzzy logic techniques, were opted by many cloud computing researchers to conduct their study to optimize the performance of the system. Show more

Keywords: Cloud computing, fuzzy logic, scheduling algorithms, mobile cloud computing, fuzzy logic applications

DOI: 10.3233/JIFS-179680

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5933-5947, 2020

Authors: Mundra, Ankit | Mundra, Shikha | Verma, Vivek Kumar | Srivastava, Jai Shankar

Article Type: Research Article

Abstract: Stock market analysis or stock price prediction is aimed at predicting firm’s profitability based on current as well as historical data. From recent studies it is observed that machine learning approaches have outperformed traditional statistical methods in predictive analysis task. In our work we have analyzed time series data as prediction of stock price depends on historical variation in prices of stocks. To enhance the prediction accuracy, we have proposed a hybrid approach which is based on the concept of support vector machines (SVM) and Long Short-Term Memory (LSTM) as these algorithms are performing better in time series problem. On …applying proposed approach onto the TATA Global Beverages stock dataset, we have observed prediction accuracy of ninety seven percent which is outperforming, along with this to enhance the performance author have presented some observation like relative importance of the input financial variables and differences of determining factors in market comparative predictive analysis onto the experimentation dataset. Show more

Keywords: SVM, LSTM, back propagation, RNN, machine learning

DOI: 10.3233/JIFS-179681

Citation: Journal of Intelligent & Fuzzy Systems, vol. 38, no. 5, pp. 5949-5956, 2020