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Intelligent learning environments supported by intelligent technology extend the traditional face-to-face dialogues and communication methods, expand the space of intelligent learning, and serve as a bridge to stimulate learners' higher-order thinking and realize the transition from shallow learning to deep learning. The study takes “online dialog” as the perspective to design an online dialog mec...Show More
Ubiquitous learning extends e-learning from indoor to outdoor but also overcomes the weakness of mobile learning which only provides the specific domain knowledge to learners in particular learning environment. A ubiquitous learning environment covers the knowledge of different domains, hence, how to offer individual learner the learning sequence according to the learner's preference is an importa...Show More
This thesis elaborated the concept, significance and main strategy of machine learning as well as the basic structure of machine learning system. By combining several basic ideas of main strategies, great effort are laid on introducing several machine learning methods, such as Rote learning, Explanation-based learning, Learning from instruction, Learning by deduction, Learning by analogy and Induc...Show More
Graph contrastive learning, which to date has always been guided by node features and fixed-intrinsic structures, has become a prominent technique for unsupervised graph representation learning through contrasting positive–negative counterparts. However, the fixed-intrinsic structure cannot represent the potential relationships beneficial for models, leading to suboptimal results. To this end, we ...Show More
Structuring content has a positive effect on students' metacognitive skills. Our work in designing content is to approach the use of gaze tracking techniques in adaptive learning strategy that implicates structuring a learning content that will insure the adaptability in real time, taking into account the profile of each learner in the learning process. We present in this paper a learning content ...Show More
Since protein 3D structure prediction is very important for biochemical study and drug design, researchers have developed many machine learning algorithms to predict protein 3D structures using the sequence information only. Understanding the sequence-to-structure relationship is key for the successful structure prediction. Previous approaches including the single shallow learning model, the singl...Show More

Anomaly detection of industrial control systems based on transfer learning

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Tsinghua Science and Technology
Year: 2021 | Volume: 26, Issue: 6 | Journal Article |
Cited by: Papers (87)
Industrial Control Systems (ICSs) are the lifeline of a country Therefore, the anomaly detection of ICS traffic is an important endeavor. This paper proposes a model based on a deep residual Convolution Neural Network (CNN) to prevent gradient explosion or gradient disappearance and guarantee accuracy. The developed methodology addresses two limitations: most traditional machine learning methods c...Show More

Anomaly detection of industrial control systems based on transfer learning

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Year: 2021 | Volume: 26, Issue: 6 | Journal Article |
The learners of the new millennium prefer to be self-learners. They prefer self evaluation by taking self-test and creating their own knowledge after a learning session. Autonomy in the learning process is the key focus of the modern learning environment. This paper describes the architecture of a self-learning environment which incorporates adaptive and intelligent features in the learning proces...Show More
Filtering of Protein Secondary Structure Prediction (PSSP) aims to provide physicochemically realistic results, while it usually improves the predictive performance. We performed a comparative study on this challenging problem, utilizing both machine learning techniques and empirical rules and we found that combinations of the two lead to the highest improvement.Show More
Multi-expert networks have shown great superiority for imbalanced data classification tasks due to their complementary and diverse. We have summarized two aspects for further explorations: (1) uncontrollable results, arising from the performance differences of individual experts and variations in sample difficulty; (2) insufficient exploration of the internal data structure. These factors result i...Show More
The SQL injection attack is a highly perilous vulnerability in the digital realm, especially for web pages, as recognized by the Open Web Application Security Project (OWASP) ranking. It is a type of code injection attacks. This kind of attacks basically breaches the virtual portion of the databases. Many web applications accept to store the user’s private information (e.g., login credentials, cre...Show More
Hypergraph structure learning, which aims to learn the hypergraph structures from the observed signals to capture the intrinsic high-order relationships among the entities, becomes crucial when a hypergraph topology is not readily available in the datasets. There are two challenges that lie at the heart of this problem: 1) how to handle the huge search space of potential hyperedges, and 2) how to ...Show More
As cyber squabbling has been intensified, the necessity of sharing cyber threat information has increased Therefore, attempts to develop a technology to upgrade and deepen the related system will continue. In particular, it is anticipated that automated response and analysis using machine learning will be actively conducted In this paper, we design and propose IL-CyTIS (a unified and lightened inf...Show More
Our recent work has proved the effectiveness of utilizing supervised machine learning to perform relay selection in cooperative networks. However, the structure of artificial neural network provided is rather heuristic and simple, where a symmetric architecture is adopted with only a single hidden layer and the number of neurons in the hidden layer is the same as the number of inputs/outputs. Howe...Show More
Frequency of accidents have increased along with an increase in the number of vehicles on the roads. Many people suffer injuries, with many incurring a disability as a result of their injury. This work focuses on analyzing road accidents by using machine learning and videogrammetry techniques with the help of videos and images obtained from unmanned aerial vehicles (UAV). Machine learning model in...Show More
Learning plays a very important role in the evolution of human knowledge; in teaching area, teachers notice more and more that the learning level is getting down, on the other hand learners are unable to use their knowledge in new situation in an effective way, they claim themselves did not have a good learning or they have misunderstood the course. However, to solve this matter, we believe that t...Show More
Semi-supervised learning is an important research area in machine learning, which is mainly combined with a little labeled training data from reality, studies the data structure and distribution information from the large number of unlabeled data and makes full use of this information to improve the performance of classification algorithms, and researches the symmetry between the labeled and unlab...Show More
Massive Open Online Courses (MOOCs) are allowing education to become accessible to all learners. However, computers are currently not able to provide the same individual expertise and support as a human instructor, making it difficult to tailor the course for each student. This work proposes using machine learning analytics to provide useful individualized feedback to learners in a Cardiovascular ...Show More
At present, the seismic fortification level of “small earthquake is not bad, medium earthquake can be repaired, and big earthquake can not fall” adopted by various countries is to ensure life safety as the single fortification goal. The structure of high-rise building is complex, and the degree of freedom is huge. When the active seismic control method is adopted, the accurate model of the structu...Show More
This work analyses and discusses the use of machine learning methods in the field of bioinformatics concerning protein structure prediction. The steps of the proposed methodology include: acquiring and cleaning the relevant proteins sequences datasets; and creation and training of deep learning models, including Convolutional Neural Networks (CNNs), and Recurrent Neural Networks, (RNNs). Overall, ...Show More
This paper introduces definition of machine learning and the basic structure, describes a variety of machine learning methods, compares and analyzes their advantages and their limitations, introduces the main research areas of machine learning, especially introduces technological application of machine learning methods.Show More
Ab initio protein secondary structure (SS) predictions are utilized to generate tertiary structure predictions, which are increasingly demanded due to the rapid discovery of proteins. Although recent developments have slightly exceeded previous methods of SS prediction, accuracy has stagnated around 80 percent and many wonder if prediction cannot be advanced beyond this ceiling. Disciplines that h...Show More
This article presents the results of applying an epistemological model for students learning computer programming languages. The proposal is based on an analysis of learning theories, teaching methods and experiences with groups in promoting learning and research in different institutions. The main focus of the proposal is on applying learning principles guided with an epistemological model using ...Show More
In this article, we present our work on baseline detection in images of historical documents. This work focuses on handwritten documents containing tabular structures. One of the difficulties of this kind of documents is the strong interaction between text and tabular structures. This interaction leads to ambiguous cases for which recognition systems often over-or sub-segment baselines. The intere...Show More
Unsupervised active learning has become an active research topic in the machine learning and computer vision communities, whose goal is to choose a subset of representative samples to be labeled in an unsupervised setting. Most of existing approaches rely on shallow linear models by assuming that each sample can be well approximated by the span (i.e., the set of all linear combinations) of the sel...Show More