Seyed Mohammad Jafar Jalali's research while affiliated with Deakin University and other places
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Publications (82)
Seagrasses provide a wide range of ecosystem services in coastal marine environments. Despite their ecological and economic importance, these species are declining because of human impact. This decline has driven the need for monitoring and mapping to estimate the overall health and dynamics of seagrasses in coastal environments, often based on und...
Research on digitalisation trends and digital topics has become one of the most prolific streams of research within the fields of business and management during the course of the past few years. The purpose of this study is to provide a general picture of the intellectual structure and the conceptual space of this research realm. To this purpose, 6...
In recent years, the accurate recognition of traffic scenes has played a key role in autonomous vehicle operations. However, most works in this area do not address the domain shift issue where the classification performance is degraded when the distribution of the source and target images are different due to weather changes. Also, lack of sparsity...
Food recommendation systems have been increasingly developed in online food services to make recommendations to users according to their previous diets. Although unhealthy diets may cause challenging diseases such as diabetes, cancer, and premature heart diseases, most of the developed food recommendation systems neglect considering health factors...
Probabilistic load forecasting (PLF) is necessary for power system operations and control as it assists in proper scheduling and dispatch. Moreover, PLF adequately captures the uncertainty whether that uncertainty is related to load data or the forecasting model. And there are not many PLF models, and those which exist are very complex or difficult...
With the continued growth of wind power penetration into conventional power grid systems, wind power forecasting plays an increasingly competitive role in organizing and deploying electrical and energy systems. The wind power time series, though, often present non-linear and non-stationary characteristics, allowing them quite challenging to estimat...
Brain tumour classification is an expensive complicated challenge in the sector of clinical image analysis. Machine learning algorithms enabled radiologists to accurately diagnose tumours without requiring major surgery. However, several challenges rise; first, the major challenge in designing the most accurate deep learning architecture for classi...
Various Non-negative Matrix factorization (NMF) based methods add new terms to the cost function to adapt the model to specific tasks, such as clustering, or to preserve some structural properties in the reduced space (e.g., local invariance). The added term is mainly weighted by a hyper-parameter to control the balance of the overall formula to gu...
Solar irradiance forecasting is a major priority for the power transmission systems in order to generate and incorporate the performance of massive photovoltaic plants efficiently. As such, prior forecasting techniques that use classical modelling and single deep learning models that undertake feature extraction procedures manually were unable to m...
High accurate wind speed forecasting plays an important role in ensuring the sustainability of wind power utilization. Although deep neural networks (DNNs) have been recently applied to wind time-series datasets, their maximum performance largely leans on their designed architecture. By the current state-of-the-art DNNs, their architectures are mai...
There are a large number of causes of morbidness over the world population, and cardiovascular disease is one of the top reasons among them. During the last decade, early detection of warning symptoms is regarded as one of the most important tasks, easing the treatment procedure and preventing a large number of deaths. Numerous people die annually...
Recommendation systems as the main e-commerce tools play an important role in business survival. Therefore, recommender systems and their challenges are a concern for scholars and professionals. Since this kind of system offers appropriate suggestions to online users using their interests and preferences, a lack of information about users and their...
Abstract
Feedforward Neural Network (FNN) is one of the most popular neural network models that is utilized to solve a wide range
of nonlinear and complex problems. Several models such as stochastic gradient descent have been developed to train FNNs.
However, they mainly suffer from falling into local optima leading to reduce the accuracy of FNNs....
Cardiovascular diseases are the leading cause of death in recent decades, which are increasing due to changes in people's lifestyles. Their treatment has high costs and a long treatment process. Therefore, predicting such diseases can provide care, and prevention services and treatment programs can be very useful to increase the quality of life and...
Tide refers to a phenomenon that causes the change of water level in oceans. Tidal level forecasting plays an important role in many real-world applications especially those related to oceanic and coastal areas. For instance, accurate forecasting of tidal level can significantly increase the vessels’ safety as an excessive level of tidal makes seri...
In recent decades, wind power is rapidly becoming a significant energy resource due to environmental considerations. The accuracy of wind energy forecasts is closely dependent on the prediction of wind speed time series. In this paper, a novel solution for ultra-short-term and short-term wind speed forecasting is introduced. The proposed method con...
Radiological methodologies, such as chest x-rays and CT, are widely employed to help diagnose and monitor COVID-19 disease. COVID-19 displays certain radiological patterns easily detectable by X-rays of the chest. Therefore, radiologists can investigate these patterns for detecting coronavirus disease. However, this task is time-consuming and needs...
Wind power forecasting is very crucial for power system planning and scheduling. Deep Neural Networks (DNNs) are widely used in forecasting applications due to their exceptional performance. However, the DNNs' architectural configuration has a significant impact on their performance, and the selection of proper hyper-parameters determines the succe...
Although the multi-layer perceptron (MLP) neural networks provide a lot of flexibility and have proven useful and reliable in a wide range of classification and regression problems, they still have limitations. One of the most common is associated with the optimization algorithm used to train them. The most commonly used training method is stochast...
Deep neural networks (DNNs) have achieved the state of the art performance in numerous fields. However, DNNs need high computation times, and people always expect better performance in a lower computation. Therefore, we study the human somatosensory system and design a neural network (SpinalNet) to achieve higher accuracy with fewer computations. H...
Wind power instability and inconsistency involve the reliability of renewable power energy, the safety of the transmission system, the electrical grid stability and the rapid developments of energy market. The study on wind power forecasting is quite important at this stage in order to facilitate maximum wind energy growth as well as better efficie...
COVID-19 has had a detrimental impact on normal activities, public safety, and the global financial system. To identify the presence of this disease within communities and to commence the management of infected patients early, positive cases should be diagnosed as quickly as possible. New results from X-ray imaging indicate that images provide key...
Recommender systems are known as intelligent systems which have many applications in enormous domains such as social networks, e-commerce services, and online shopping. Deep neural networks have shown significant improvement in the performance of recommender systems by learning the latent features of users/items based on input data. However, it is...
Accurate prediction of solar energy is an important issue for photovoltaic power plants to enable early participation in energy auction industries and cost-effective resource planning. This article introduces a new deep learning-based multistep ahead approach to improve the forecasting performance of global horizontal irradiance (GHI). A deep convo...
A novel coronavirus (COVID-19) has globally attracted attention as a severe respiratory condition. The epidemic has been first tracked in Wuhan, China, and has progressively been expanded in the entire world. The growing expansion of COVID-19 around the globe has made X-ray images crucial for accelerated diagnostics. Therefore, an effective compute...
The lightning search algorithm (LSA) is a novel meta-heuristic optimization method, which is proposed in 2015 to solve constraint optimization problems. This paper presents a comprehensive survey of the applications, variants, and results of the so-called LSA. In LSA, the best-obtained solution is defined to improve the effectiveness of the fitness...
The problem of electricity load forecasting has emerged as an essential topic for power systems and electricity markets seeking to minimize costs. However, this topic has a high level of complexity. Nevertheless, CNN architecture design remains a challenging problem. Moreover, designing an optimal architecture for CNNs leads to improve their perfor...
This study aimed at providing an overview of research themes and collaborations in the digital transformation scholarship. The methods of co-word analysis, co-author analysis, and network analysis were employed to network-analyze the keywords, countries, and institutions of 2820 research articles published on the digital transformation topic and in...
With the rapid growth in computational complexities of statistical pattern recognition of photovoltaic (PV) energy measurements, the need for new data-driven models has emerged. Among machine learning frameworks, deep neural networks yield promising solutions due to their high generalization capacity, low estimation bias, and ease of implementation...
The performance of multi-layer feed-forward neural networks is closely related to the success of training algorithms in finding optimal weights in the network. Although conventional algorithms such as back-propagation are popular in this regard, they suffer from drawbacks such as a tendency to get stuck in local optima. In this paper, we propose an...
The Motion Cueing Algorithm (MCA) oversees regenerating the motion feeling of the real vehicle for the simulation-based motion platform (SBMP) within the physical limitations. Model Predictive Control (MPC) is recently employed as an MCA, which is called MPC-based MCA due to the consideration of the plant's boundaries in finding the optimal input s...
Deep neural networks (DNNs) have achieved the state of the art performance in numerous fields. However, DNNs need high computation times, and people always expect better performance with lower computation. Therefore, we study the human somatosensory system and design a neural network (SpinalNet) to achieve higher accuracy with lower computation tim...
Most of the theories have considered big data as an interesting subject in the information technology domain. Big data is a term for describing huge databases that traditional methods in data processing suffer from analyzing them. Recognizing and clustering emerging topics in this area will help researchers whose aim is to work on this interesting...
The field of neuroevolution has achieved much attention in recent years from both academia and industry. Numerous papers have reported its successful applications in different fields ranging from medical domain to autonomous systems. However, it is not clear which evolutionary optimization techniques lead to the best results. In this paper, multila...
This paper aims to analyze the content of validated journal articles related to Knowledge Management (KM) in more than 18,000 papers of the Web of Science (WoS) database and then provide the most recent specific trends in KM field using text mining and burst detection to help researchers invest in the most challenging and fruitful areas of KM resea...
This chapter proposes a new efficient moth-flame-embedded multilayer perceptrons (MLP) neuroevolution model to deal with classification problems. Moth-flame optimizer (MFO) is one of the effective swarm-based metaheuristic methods inspired by the natural direction-finding behaviours of moth insects and their well-known entrapment phenomena when the...
Determining the best set of weights and biases for training neural networks (NN) using gradient descent techniques is a computationally challenging task. On the other hand, training of gradient descent algorithms suffers from being trapped in local optima and slow convergence speed in the last iterations. The moth-flame optimization (MFO) is a nove...
One of the most difficult challenges in machine learning is the training process of artificial neural networks, which is mainly concerned with determining the best set of weights and biases. Gradient descent techniques are known as the most popular training algorithms. However, they are susceptible to local optima and slow convergence in training....
Gamification is here to stay, and tourism and hospitality online review platforms are taking advantage of it to attract travelers and motivate them to contribute to their websites. Yet, literature in tourism is scarce in studying how effectively is users’ behavior changing through gamification features. This research aims at filling such gap throug...
The purpose of this research is to investigate the emerging scientific themes in Business Analytics through the utilization of burst detection, text-clustering and word occurrence analysis in top Information Systems journals in order to provide an insight about the future scientific trends of business analytics for scholars and practitioners in the...
Today’s organizations perform their activities in difficult situations with uncertainty, rapid changes of technology, global markets and etc. There are a lot of factors which affect their performances. This matter is important for bigger industry such as petrochemical industry. There are various factors which are involved on the performance of a co...
In this study, we illustrate the most recent stage in the scholarly development of the field of Business Analytics. Using around 23,000 research publications collected from the Web of Science, we network-analyzed four types of dataset that include keywords, titles, institutions, and countries. It is noteworthy that we found a thematic cluster focus...
Applying some methods to reduce the time and expenditures of training is inevitable in existing circumstances. Many educational organisations have realised the importance of Electronic Learning (E-learning) and tried to use this approach in leveraging their academic classes. As research in e-learning domain has become one of the most important and...
Abstract: In recent years, application of data mining methods in health industry has received increased attention from both health professionals and scholars. This paper presents a data mining framework for detecting breast cancer based on real data from one of the Iran hospitals by applying association rules and the most commonly used classifiers....
Applying some methods to reduce the time and expenditures of training is inevitable in existing circumstances. Many educational organisations have realised the importance of Electronic Learning (E-learning) and tried to use this approach in leveraging their academic classes. As research in e-learning domain has become one of the most important and...
The purpose of this research is to investigate the emerging scientific themes in business analytics through the utilisation of burst detection, text-clustering and word occurrence analysis in top information systems journals in order to provide an insight about the future scientific trends of business analytics for scholars and practitioners in the...
This article studies autoregressive (AR) models assuming innovations with scale mixtures of skew-normal (SMSN) distributions, an attractive and flexible family of probability distributions. A Bayesian analysis considering informative prior distributions is presented. Comprehensive simulation studies are performed to support the performance of the p...
Using the network analysis method, this study investigates the communication structure of Open Data on the Twitter sphere. It addresses the communication path by mapping influential activities and comparing the contents of tweets about Open Data. In the years 2015 and 2016, the NodeXL software was applied to collect tweets from the Twitter network,...
Business intelligence has become mainstream in recent scientific research trends. The purpose of this research is to study the emerging and fading themes of the business intelligence domain through an analytical overview of keywords, titles and abstracts. Among scientometrics methods for representing the emergent and disappearing trends, the ‘burst...
Big Data, as an evolving topic, has recently not only attracted the information technology scientists'
attention but also other researchers' of different backgrounds and in a diverse set of the scientific
domains. Thanks to the recent progress in information technology and data storage, large-scale data is
available about various research problems...
In today’s world, the global nature of business and advances in information and communication technology, forced organizations to use emerging technologies to maintain themselves competitive. In recent years, electronic business (e-learning) has been adopted by many organizations. Thereby companies can improve their operational efficiency, profitab...
Social media plays an important role in rapid propagation of marketing. Identifying the important themes of Social media marketing is important for the community of scientific scholars and business professorial. Hence the purpose of this article is to answer the above demand by introducing a practical framework for SMM domain in academic literature...
Social network analysis (SNA) method is characterized as a structured technique for providing so as to analyse the connections within the networks by visualizing and analyzing relationships among documents, individuals, and even whole associations.The fundamental point of this research was to analyze the 4720 scientific documents on the field of E-...
Business Intelligence has become a main stream in recent scientific research trend. The purpose of this research is to study the emerging and fading themes of Business Intelligence domain through an analytical overview of keywords, titles and abstracts. Among scientometrics methods for representing the emergent and disappearing trends, Burst Detect...
Business Intelligence has become a main stream in recent scientific research trend. The purpose of this research is to study the emerging and fading themes of Business Intelligence domain through an analytical overview of keywords, titles and abstracts. Among scientometrics methods for representing the emergent and disappearing trends, Burst Detect...
Business Intelligence has become a main stream in recent scientific research trend. The purpose of this research is to study the emerging and fading themes of Business Intelligence domain through an analytical overview of keywords, titles and abstracts. Among scientometrics methods for representing the emergent and disappearing trends, Burst Detect...
Citations
... Reliability is an important measure defined in the context of RSs, which relies on the concept that how much the produced recommendations are reliable for users. It is shown that the more reliable items are recommended, the more relevant the recommendations will be to the user's preferences [19,[65][66][67]. Therefore, considering the reliability of predictions in RSs can significantly improve the accuracy of recommendations, which results in increasing user's satisfaction. ...
... This way, they do not have to go through the complex process of extracting features. CNNs have been applied successfully in medical image classification [12], detection [13], segmentation [14,15], and other image processing tasks [16]. Many studies on brain tumor segmentation have used CNN-based methods, which have greatly improved the speed and accuracy of diagnosing brain tumors. ...
... A significant gap exists between the prediction results obtained by these methods and ERL. [56] PM2.5 forecasting Q-learning 2021 Li et al. [82] PM2.5 forecasting Q-learning 2021 Chao Chen and Hui Liu [83] wind speed prediction deep Q-Network 2021 Jalali et al. [84] wind power forecasting Q-learning 2022 Tan et al. [31] PM2.5 prediction Sarsa 2022 Qin et al. [85] unit commitment problem deep Q-Network 2022 Sogabe et al. [86] smart energy optimization and risk evaluation Q-learning 2022 Sharma et al. [52] estimating reference evapotranspiration Q-learning 2022 He et al. [87] wind farm control deep deterministic policy gradient 2022 Jalali et al. [88] solar irradiance forecasting Q-learning 2022 Shi Yin and Hui Liu [61] wind power prediction Q-learning 2023 Yu et al. [29] wind power prediction deep deterministic policy gradient [89], who used an online algorithm. The performance of the ERL method has been verified on simulation platforms [90], and the experimental results ...
Reference: Ensemble Reinforcement Learning: A Survey
... A largely hidden layer with more parameters usually improves the prediction accuracy but dramatically increases the number of weights. And a small hidden layer does not propagate all input features well, resulting in suboptimal results [41]. To make up for both shortcomings and solve the parameter redundancy and overfitting caused by a fully connected layer, we design an IFC layer. ...
... Wu et al. employed the swarm intelligence algorithm to optimize the welding sequence optimization and FNNs; this algorithm eliminated premature convergence and generated the best solution [22]. Raziani et al. combined a modified whale optimization algorithm based on a nonlinear function with FNNs to resolve medical classification problems; this method had faster operation efficiency and better evaluation indexes [23]. Dong et al. designed an efficient and reliable training algorithm to solve FNNs; this algorithm utilized flexibility and stability to obtain a better objective value [24]. ...
... Zhao et al. [32] and Lei et al. [33] performed attribute reduction based on rough set, and then combined fuzzy Bandelet neural network and deep learning to predict the life of impeller and building energy consumption, respectively. Khodayar et al. [34] proposed a novel deep generative neural network for wind speed forecasting by combining with rough set theory. Sheikhoushaghi et al. [35] designed a rough neural network to forecast oil production rate. ...
... With the consideration of temporal and spatial variation in scene time series, Yu et al. [29] developed a wind power forecasting method based on the convolutional neural network (CNN). To optimize the hyper-parameters of the CNN for wind power forecasting, Jalali et al. [30] proposed an improved version of the grey wolf optimization algorithm. In reference [31], spatio-temporal correlation characteristics were represented using correlation coefficients and the Shapley value method, and they were employed in the power forecasting based on CNN and long-short term memory (LSTM) networks. ...
... The FCL's output is then passed through the last layer, which is usually a softmax layer. The softmax function is a common choice for the output layer of a classification network, as it produces a probability distribution over the possible classes [50]. The softmax function takes a vector of arbitrary real-valued scores and produces a vector of probabilities that sums to one. ...
... Moreover, the accurate diagnosis of COVID-19 infection is highly dependent on the expertise of radiologists, which poses difficulties for some due to its recent emergence and similarity to other lung diseases, such as pneumonia (Luz et al., 2022). Thus, such issues necessitate the development of an automated decision support system to improve the diagnosis's efficiency, accuracy, and speed, which can be achieved using machine learning and statistical algorithms (Jalali et al., 2022). ...
... In other words, these models choose random values for the weights and biases of ANNs that lead to a high-level uncertainty in the training process. Moreover, falling into local optima can negatively affect the convergence speed of the training process [7][8][9][10][11]. Accordingly, choosing appropriate initial values of weights and biases is a critical issue to find global optima in the training process of MLP networks. ...