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2022 Ivannikov Ispras Open Conference (ISPRAS)最新文献

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Analytical and numerical methods for Zhukovsky airfoils aerodynamics coefficients 茹科夫斯基翼型气动系数的解析与数值计算方法
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076854
A. Petrov, A. D. Sukhov, I. Sibgatullin, A. Britov
{"title":"Analytical and numerical methods for Zhukovsky airfoils aerodynamics coefficients","authors":"A. Petrov, A. D. Sukhov, I. Sibgatullin, A. Britov","doi":"10.1109/ISPRAS57371.2022.10076854","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076854","url":null,"abstract":"The two-dimensional problem of a viscous laminar flow around Zhukovsky airfoils at an angle of attack is considered. Based on the approach of local similarity, which was proposed by Kochin and Loytsyansky for the equations of laminar boundary layer, we have found the shear stresses at the aifoil, and the coordinates of the separation points. Assuming the values of the velocities at the separation points to be equal, we find the value of the circulation. A complete solution to the problem of the velocity and pressure field outside the boundary layer is also constructed. The theoretical results are compared with the available experimental data and numerical simulations of the Navier-Stokes equations.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130641372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gray Code Arithmetic for Clock Domains Transfer 时钟域转移的灰码算法
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076864
M. Sheblaev, Rodion Erokhin
{"title":"Gray Code Arithmetic for Clock Domains Transfer","authors":"M. Sheblaev, Rodion Erokhin","doi":"10.1109/ISPRAS57371.2022.10076864","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076864","url":null,"abstract":"Modern high-speed FPGA and VLSI often operate using multiple clock subnets (synchronization domains). It is necessary to solve the problem of reliable data transfer between different clock domains. For this purpose, we should minimize the number of simultaneously changing bits within the clock stability window. A well-known mathematical model aimed to solve this problem is the usage not of binary notation to form address pointers but Gray’s code, specially designed to meet such kind of requirements.The classical approach for arithmetics in Gray code is to use conversion from Gray code to binary code, use binary arithmetic operations and convert the result back from binary code to Gray code. We propose new algorithms for such arithmetic operations which are free of conversions from Gray code to binary code.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125616718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anti-Distillation: Knowledge Transfer from a Simple Model to the Complex One 反蒸馏:从简单模型到复杂模型的知识转移
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076855
Kseniia Petrushina, O. Bakhteev, A. Grabovoy, V. Strijov
{"title":"Anti-Distillation: Knowledge Transfer from a Simple Model to the Complex One","authors":"Kseniia Petrushina, O. Bakhteev, A. Grabovoy, V. Strijov","doi":"10.1109/ISPRAS57371.2022.10076855","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076855","url":null,"abstract":"The paper considers the problem of adapting the model to new data with a large amount of information. We propose to build a more complex model using the parameters of a simple one. We take into account not only the accuracy of the prediction on the original samples but also the adaptability to new data and the robustness of the obtained solution. The work is devoted to developing the method that allows adapting the pre-trained model to a more heterogeneous dataset. In the computational experiment, we analyse the quality of predictions and model robustness on Fashion-MNIST dataset.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124018914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ensemble of Logistic Regression Models for Voice Settings of Virtual Pedagogical Agent 虚拟教学代理语音设置的逻辑回归模型集成
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076866
A. Varnavsky
{"title":"Ensemble of Logistic Regression Models for Voice Settings of Virtual Pedagogical Agent","authors":"A. Varnavsky","doi":"10.1109/ISPRAS57371.2022.10076866","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076866","url":null,"abstract":"The use of virtual pedagogical agents in a digital learning environment can improve learning efficiency. To do this, when developing, it is necessary to consider and lay down the parameters that will affect the interaction between the agent and the student. The agent’s voice is an important form of incarnation. Voice quality affects learning, perception, and trust. That is why it is so important to set voice parameters. Since each student has his characteristics, models are needed that consider such properties when setting voice parameters. However, such models are rare in the literature. The work aims to develop models for the voice settings of a virtual pedagogical agent that considers the individual properties of a particular student. Since an important parameter of speech is the tempo, which affects the comfort and convenience of listening, the tempo of the agent’s speech is chosen as a dependent variable. As independent variables, indicators of the strength of the student’s nervous system were used, which determine the course of neurodynamic and cognitive processes that affect the effectiveness of learning. An experiment was carried out, and based on the results of processing the data obtained, an ensemble of logistic regression models was built that determines the rate of speech according to the selected indicators of the strength of the nervous system.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134252090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving fuzzing efficiency based on extracted constant values 基于提取的常数值提高模糊处理效率
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076849
S. Sargsyan, J. Hakobyan, Lyudovikos Nersisyan, Karen Sargsyan, Vahagn Melkonyan
{"title":"Improving fuzzing efficiency based on extracted constant values","authors":"S. Sargsyan, J. Hakobyan, Lyudovikos Nersisyan, Karen Sargsyan, Vahagn Melkonyan","doi":"10.1109/ISPRAS57371.2022.10076849","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076849","url":null,"abstract":"Fuzzing is one of the most efficient methods for bug detection. Many companies use fuzzing for their products’ quality improvement. One of the downsides of fuzzing is the execution time. To provide good code coverage fuzzing should be performed long enough. It is a critical problem for regular testing of large code bases. This work aims to extract constant values used in branch conditions. Then develop a special mutation for fuzzing tool, which uses this information to perform better mutations with input buffer and cover program paths faster. Experimental evaluation of the developed method on Google’s OSS-Fuzz project proves the efficiency of the developed method.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126898954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Graph Neural Network for Crawling Target Nodes in Social Networks 社交网络中目标节点爬行的图神经网络
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076873
K. Lukyanov, Mikhail Drobyshevskiy, Danil Shaikhelislamov, D. Turdakov
{"title":"Graph Neural Network for Crawling Target Nodes in Social Networks","authors":"K. Lukyanov, Mikhail Drobyshevskiy, Danil Shaikhelislamov, D. Turdakov","doi":"10.1109/ISPRAS57371.2022.10076873","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076873","url":null,"abstract":"Social networks crawling is in the focus of active research the last years. One of the challenging task is to collect target nodes in an initially unknown graph given a budget of crawling steps. Predicting a node property based on its partially known neighbourhood is at the heart of a successful crawler. In this paper we adopt graph neural networks for this purpose and show they are competitive to traditional classifiers and are better for individual cases. Additionally we suggest a training sample boosting technique, which helps to diversify the training set at early stages of crawling and thus improves the predictor quality. The experimental study on three types of target set topology indicates GNN based approach has a potential in crawling task, especially in the case of distributed target nodes.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130373331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using Lingvodoc platform for researching genetic and areal semantic shifts: the case of Ob-Ugric basic vocabulary 利用Lingvodoc平台研究鄂乌格族基础词汇的遗传和地域语义转移
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076853
Idaliya Fedotova
{"title":"Using Lingvodoc platform for researching genetic and areal semantic shifts: the case of Ob-Ugric basic vocabulary","authors":"Idaliya Fedotova","doi":"10.1109/ISPRAS57371.2022.10076853","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076853","url":null,"abstract":"Typology of semantic shifts has been in the focus of linguistic typology for the last 20 years. Emergence of cross-linguistic databases and linguistic platforms has taken the study of semantic changes to the new level, as it enlarged the sample of the languages under investigation. Yet the languages of Russia are only scarcely represented in the global databases and do not make a substantial contribution to this field. The LingvoDoc platform, which stores unique materials on the languages of Russia, upon certain enhancements can fill in this gap.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127988930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Case Study of Valency Patterns for Motion Verbs in Vakh Khanty by Means of Lingvodoc 用Lingvodoc对哈萨克语动态动词配价模式的个案研究
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076868
I. Novitskaya, V. Vorobeva
{"title":"A Case Study of Valency Patterns for Motion Verbs in Vakh Khanty by Means of Lingvodoc","authors":"I. Novitskaya, V. Vorobeva","doi":"10.1109/ISPRAS57371.2022.10076868","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076868","url":null,"abstract":"The article presents a study of the syntactic compatibility of verbs of motion in the Vakh dialect of the Khanty language. The study was conducted with the help of the tools of the platform for documentation of the Uralic languages Lingvodoc. The purpose of the article is to describe patterns of syntactic valency that Vakh Khanty verbs of motion have.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122529114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Dataset for Information Extraction from News Web Pages 新闻网页信息提取的数据集
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076872
M. Varlamov, Denis Galanin, Pavel Bedrin, Sergey Duda, Vladimir Lazarev, A. Yatskov
{"title":"A Dataset for Information Extraction from News Web Pages","authors":"M. Varlamov, Denis Galanin, Pavel Bedrin, Sergey Duda, Vladimir Lazarev, A. Yatskov","doi":"10.1109/ISPRAS57371.2022.10076872","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076872","url":null,"abstract":"In this paper we propose a new dataset for information extraction from news web pages. Accurate collection of news articles is necessary to build systems that aggregate and analyze data from a large number of news sources. However, existing news page datasets are designed for the problem of article content extraction and do not consider other metadata such as dates or authors, while modern generic approaches for structured web data extraction are evaluated on other domains, mostly e-commerce products websites. Our dataset contains 724 web pages from 114 Russian news websites. On each page we manually annotated title, text, publication date, tags and other article attributes. We describe data collection and annotation process and demonstrate evaluation results for open source tools and neural network based approaches. The dataset is publicly available on GitHub.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127639755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Devirtualization for static analysis with low level intermediate representation 用于具有低级中间表示的静态分析的反虚拟化
2022 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2022-12-01 DOI: 10.1109/ISPRAS57371.2022.10076859
Artemiy Galustov, A. Borodin, A. Belevantsev
{"title":"Devirtualization for static analysis with low level intermediate representation","authors":"Artemiy Galustov, A. Borodin, A. Belevantsev","doi":"10.1109/ISPRAS57371.2022.10076859","DOIUrl":"https://doi.org/10.1109/ISPRAS57371.2022.10076859","url":null,"abstract":"We propose a points-to analysis that can recover targets for function pointer calls, virtual calls and method calls for using in a static analysis. We use a flow-insensitive analysis, and the analysis results are intended for flow- and path-sensitive analysis which can improve the initial analysis precision within a single function. We implemented the proposed approach in a static analyzer for finding errors in C, C++, Go, Java and Kotlin programs. The devirtualization algorithm is fast enough and spends less than 6% of the total analysis time. It can work for projects like Tizen 7 with 27.5 MLoc of source code.","PeriodicalId":103880,"journal":{"name":"2022 Ivannikov Ispras Open Conference (ISPRAS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122769749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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