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2015 Federated Conference on Computer Science and Information Systems (FedCSIS)最新文献

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Brain image classification based on automated morphometry and penalised linear discriminant analysis with resampling 基于自动形态测量和重采样惩罚线性判别分析的脑图像分类
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F147
E. Janousová, D. Schwarz, G. Montana, T. Kašpárek
{"title":"Brain image classification based on automated morphometry and penalised linear discriminant analysis with resampling","authors":"E. Janousová, D. Schwarz, G. Montana, T. Kašpárek","doi":"10.15439/2015F147","DOIUrl":"https://doi.org/10.15439/2015F147","url":null,"abstract":"This paper presents a new data-driven classification pipeline for discriminating two groups of individuals based on the medical images of their brain. The algorithm combines deformation-based morphometry and penalised linear discriminant analysis with resampling. The method is based on sparse representation of the original brain images using deformation logarithms reflecting the differences in the brain in comparison to the normal template anatomy. The sparse data enables efficient data reduction and classification via the penalised linear discriminant analysis with resampling. The classification accuracy obtained in an experiment with magnetic resonance brain images of first episode schizophrenia patients and healthy controls is comparable to the related state-of-the-art studies.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116664084","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: 1
Constructive heuristics for technology-driven Resource Constrained Scheduling Problem 技术驱动的资源约束调度问题的建设性启发式方法
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F389
P. Myszkowski, M. Przewozniczek, Marek Skowronski
{"title":"Constructive heuristics for technology-driven Resource Constrained Scheduling Problem","authors":"P. Myszkowski, M. Przewozniczek, Marek Skowronski","doi":"10.15439/2015F389","DOIUrl":"https://doi.org/10.15439/2015F389","url":null,"abstract":"In this paper, we define a new practical technology-driven Resource Constrained Scheduling Problem (t-RCPSP). We propose three approaches, applying constructive heuristics to tackle effectively the practical application of RCPSP. In the RCPSP formulation, the constraints are defined to design the tasks in the spaces constructed by non- and renewable resources, without violating the precedence relationships and technologies in real world problem that exists in Plastic and Rubber Processing company. The difficulty of t-RCPSP is NP-hard and we proposed three constructive specialized methods: duration based heuristics (DBH), locally optimal resource usage PEC and NEH heuristic adaptation. The paper presents results of computational experiments that show the effectiveness of the proposed approaches.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128968299","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: 2
Comparison of language models trained on written texts and speech transcripts in the context of automatic speech recognition 在自动语音识别环境下，书面文本和语音文本训练的语言模型的比较
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F386
Sebastian Dziadzio, A. Nabożny, Aleksander Smywiński-Pohl, B. Ziółko
{"title":"Comparison of language models trained on written texts and speech transcripts in the context of automatic speech recognition","authors":"Sebastian Dziadzio, A. Nabożny, Aleksander Smywiński-Pohl, B. Ziółko","doi":"10.15439/2015F386","DOIUrl":"https://doi.org/10.15439/2015F386","url":null,"abstract":"We investigate whether language models used in automatic speech recognition (ASR) should be trained on speech transcripts rather than on written texts. By calculating log-likelihood statistic for part-of-speech (POS) n-grams, we show that there are significant differences between written texts and speech transcripts. We also test the performance of language models trained on speech transcripts and written texts in ASR and show that using the former results in greater word error reduction rates (WERR), even if the model is trained on much smaller corpora. For our experiments we used the manually labeled one million subcorpus of the National Corpus of Polish and an HTK acoustic model.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129683154","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: 3
An SDN-assisted system design for improving performance of SVC-DASH 改进SVC-DASH性能的sdn辅助系统设计
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F333
C. Çetinkaya, Yalcin Ozveren, M. Sayıt
{"title":"An SDN-assisted system design for improving performance of SVC-DASH","authors":"C. Çetinkaya, Yalcin Ozveren, M. Sayıt","doi":"10.15439/2015F333","DOIUrl":"https://doi.org/10.15439/2015F333","url":null,"abstract":"Today, the most of the video streaming system provides quality adaptation and prefers to send their packets over HTTP. MPEG group has standardized Dynamic Adaptive HTTP Streaming (DASH) regarding this tendency on the adaptive HTTP streaming. Besides providing quality adaptation with a non-scalable codec, DASH standard also allows Scalable Video Coding (SVC) to adapt quality. Software Defined Networks (SDN) is a recently emerged networking paradigm. SDN enables to separate control and data plane of computer networks and hence provides flexibility to network operators to implement their own routing approaches. In this paper, we propose a system for increasing Quality of Experience (QoE) of SVC-DASH clients by utilizing SDN. Our experimental results show that the proposed system provides an increase in received video quality and decrease in outage duration and startup delay when compared to the performance of the client running over todays Internet implementing shortest path routing.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130294197","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: 16
Concepts extraction from unstructured Polish texts: A rule based approach 从非结构化波兰文本中提取概念:基于规则的方法
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F280
P. Szwed
{"title":"Concepts extraction from unstructured Polish texts: A rule based approach","authors":"P. Szwed","doi":"10.15439/2015F280","DOIUrl":"https://doi.org/10.15439/2015F280","url":null,"abstract":"We present recently developed solution allowing extraction of concepts from unstructured Polish texts with special focus on correct morphological forms of obtained concept names. As Polish is a highly inflected language, detected names need to be transformed following Polish grammar rules. We propose a user-friendly method for specification of transformation patterns, which is based on a simple annotations language. Annotations prepared by a user are compiled into transformation rules. During the concept extraction process the input document is split into sentences and the rules are applied to sequences of words comprised in sentences. Recognized strings forming concept names are aggregated at various levels and assigned with scores. We report also results of initial experiments performed on a medical text.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114616630","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: 9
Fuzzy logic in the multi-agent financial decision support system 多智能体财务决策支持系统中的模糊逻辑
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F155
J. Korczak, Marcin Hernes, Maciej Bac
{"title":"Fuzzy logic in the multi-agent financial decision support system","authors":"J. Korczak, Marcin Hernes, Maciej Bac","doi":"10.15439/2015F155","DOIUrl":"https://doi.org/10.15439/2015F155","url":null,"abstract":"The article presents the application of a fuzzy logic in building the trading agents of the a-Trader system. The system supports investment decisions on the FOREX market. The first part of the article contains a discussion related to the use of fuzzy logic as an agents' knowledge representation. Next, the algorithms of the selected fuzzy logic buy-sell decision agents are presented. In the last part of the article the agent performance is evaluated on real FOREX data.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115501136","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: 4
Energy expenditure in multi-agent foraging: An empirical analysis 多智能体觅食过程中能量消耗的实证分析
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F200
Ouarda Zedadra, Hamid Seridi, Nicolas Jouandeau, G. Fortino
{"title":"Energy expenditure in multi-agent foraging: An empirical analysis","authors":"Ouarda Zedadra, Hamid Seridi, Nicolas Jouandeau, G. Fortino","doi":"10.15439/2015F200","DOIUrl":"https://doi.org/10.15439/2015F200","url":null,"abstract":"A major challenge in swarm robotics is to minimize energy and time costs. We focus in this paper on multi-agent foraging algorithms that uses ant-like agents with limited energy. By considering energy consumption, we propose a new Energy aware Cooperative Switching Algorithm for Foraging (EC-SAF) that optimizes the whole system search and transport operations needed to collect resources over time. Unnecessary moves are avoided according to the following two premises: (1) Quick search and optimal paths provided by Stigmergic Multi-Ant Search Area (S-MASA) algorithm; (2) Quick homing provided by using the optimal paths created while searching. Results indicate that EC-SAF is promising in reducing swarm energy consumption compared to an energy-aware version of the c-marking algorithm (Ec-marking).","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115576066","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: 3
Securing transmissions between nodes of WSN using TPM 使用TPM保护WSN节点之间的传输
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F144
J. Furtak, J. Chudzikiewicz
{"title":"Securing transmissions between nodes of WSN using TPM","authors":"J. Furtak, J. Chudzikiewicz","doi":"10.15439/2015F144","DOIUrl":"https://doi.org/10.15439/2015F144","url":null,"abstract":"Nowadays, Wireless Sensors Networks (WSN) are the most important components in the booming Internet of Things (IoT). Given the use of WSN in systems that are part of the critical infrastructure of a country, the primary task is continuous authentication of WSN nodes. This paper describes how to use the Trusted Platform Module (TPM) to authenticate sensors which create a sensors' domain in WSN. A model of wireless sensor network as well as operations associated with authentication in the sensors domain are presented. Additionally, an implementation of selected operations in the sensors domain is described; this includes: the master node initialization, slave nodes registration, and data transfer between them. Testing environment including the construction of nodes equipped with the TPM is described. The solution developed by the authors of the paper is only a partial realization of a broader concept of authentication in WSNs supported by the TPM.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121163053","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: 7
New proposed implementation of ABC method to optimization of Water Capsule Flight 提出了ABC方法在水胶囊飞行优化中的新实现方法
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F242
J. Czerniak, G. Śmigielski, Dawid Ewald, M. Paprzycki, W. Dobrosielski
{"title":"New proposed implementation of ABC method to optimization of Water Capsule Flight","authors":"J. Czerniak, G. Śmigielski, Dawid Ewald, M. Paprzycki, W. Dobrosielski","doi":"10.15439/2015F242","DOIUrl":"https://doi.org/10.15439/2015F242","url":null,"abstract":"The physical model of Water Capsule Flight is relatively simple but analytically unsolvable. The input data includes the mass of the capsule, velocity, altitude, aerodynamic coefficients of the capsule, and horizontal and vertical winds. The ABC optimization is focused on those attributes. This article is a part of the series dedicated to Inspired by Nature Methods of AI and their implementation in the mechatronic systems. A bag filled with water is an excellent source of explosion-produced water spray which can be used for extinguishing large fires or for other purposes. The paper presents theoretical models of flight of a bag filled with water, dropped from an aircraft moving horizontally. Results of numerical computations based on this model are compared with results of measurements for the trajectory of a bag dropped from a helicopter. A description of the experimental and numerical setup for this experiment are also discussed.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133372114","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: 20
Recurrent drifts: Aapplying fuzzy logic to concept similarity function 循环漂移:模糊逻辑在概念相似函数中的应用
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-11-09 DOI: 10.15439/2015F378
Miguel Ángel Abad, Ernestina Menasalvas Ruiz
{"title":"Recurrent drifts: Aapplying fuzzy logic to concept similarity function","authors":"Miguel Ángel Abad, Ernestina Menasalvas Ruiz","doi":"10.15439/2015F378","DOIUrl":"https://doi.org/10.15439/2015F378","url":null,"abstract":"Recurrent drift, as a specific type of concept drift, is characterised by the appearance of previously seen concepts. Therefore, in those cases the learning process could be saved or at least minimized by applying an already trained classification model. In this paper we propose Fuzzy-Rec, a framework that is able to deal with recurrent concept drifts by means of a repository of classification models and a similarity function. Fuzzy logic is used in the framework to implement the similarity function needed to compare different classification models. This is a crucial aspect when dealing with drift recurrence, as long as some measure must be implemented to determine which model better fits a previously seen context. As it can be seen in the experimentation results of this paper, this fuzzy similarity function provides excellent results both in synthetic and real datasets. As a conclusion, we can state that the introduction of fuzzy logic comparisons between models could lead to a better efficient reuse of previously seen concepts, saving computational resources by applying not just equal models, but also similar ones.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132189899","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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