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

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On integrating clustering and statistical analysis for supporting cardiovascular disease diagnosis 整合聚类与统计分析支持心血管疾病诊断
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F151
A. Wosiak, D. Zakrzewska
{"title":"On integrating clustering and statistical analysis for supporting cardiovascular disease diagnosis","authors":"A. Wosiak, D. Zakrzewska","doi":"10.15439/2015F151","DOIUrl":"https://doi.org/10.15439/2015F151","url":null,"abstract":"Statistical analysis of medical data plays significant role in medical diagnostics development. However in many cases the statistics is not effective enough. In the paper we consider combining statistical inference with clustering in the preprocessing phase of data analysis. The proposed methodology is checked on cardiovascular data and used for developing methods of early diagnosis of hypertension in children. Experiments, conducted on the real data, have demonstrated that the proposed hybrid approach allowed to discover relationships which have not been identified by using only the statistical methods. We have observed approximately 30% growth in the number of correlations between diagnosed attributes. Moreover all the obtained statistically significant dependencies were stronger in clusters rather than in the whole datasets.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116344209","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: 10
Methodological aspects of Decision Support System for the location of renewable energy sources 可再生能源选址决策支持系统的方法学方面
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F294
J. Wątróbski, P. Ziemba, Waldemar Wolski
{"title":"Methodological aspects of Decision Support System for the location of renewable energy sources","authors":"J. Wątróbski, P. Ziemba, Waldemar Wolski","doi":"10.15439/2015F294","DOIUrl":"https://doi.org/10.15439/2015F294","url":null,"abstract":"The aim of this article is to present the methodological framework for Decision Support System for the process of selecting the location of renewable energy sources. For this purpose, the paper presents the methodology and MCDA methods sequentially structuralizing and modeling the decision space and exploiting the developed model. The detailed area of research and verification of proposed approach are related to the problem of offshore wind farm localization. Proposed framework defines input information together with methodological background required for decision support processes.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115078949","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: 33
Logical structure recognition of diagram images 图形图像的逻辑结构识别
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F383
J. Sas, Urszula Markowska-Kaczmar
{"title":"Logical structure recognition of diagram images","authors":"J. Sas, Urszula Markowska-Kaczmar","doi":"10.15439/2015F383","DOIUrl":"https://doi.org/10.15439/2015F383","url":null,"abstract":"This document presents a method of a logical links structure recognition between elements on diagrams. The applied approach intuitively mimics a human way of recognition that relies on merging already found connectors into more complex ones. This procedure is modeled by our method where simple and obvious connectors and gradually extended to more complex structures. Each iteration may lead to modification of connectors set obtained so far. The modifications are managed by a rules set describing logical and graphical constraints that should be satisfied by the connectors structure. If the extension leads to violation of constraints defined by the rules then the modification is not carried out. In this way, the recognized diagram structure is consistent with the assumed principles. The method was experimentally validated using the set of diagrams from three domains. In conclusions, method's advantages and drawbacks are discussed.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121421052","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
Fast solvers for nonsmooth optimization problems in phase separation 相分离非光滑优化问题的快速求解方法
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F366
Pawan Kumar
{"title":"Fast solvers for nonsmooth optimization problems in phase separation","authors":"Pawan Kumar","doi":"10.15439/2015F366","DOIUrl":"https://doi.org/10.15439/2015F366","url":null,"abstract":"The phase separation processes are typically modeled by well known Cahn-Hilliard equation with obstacle potential. Solving these equations correspond to a nonsmooth and nonlinear optimization problem. Recently a globally convergent Newton Schur method was proposed for the non-linear Schur complement corresponding to this 2 × 2 non-linear system. The proposed method is similar to an inexact active set method in the sense that the active sets are first identified by solving a quadratic obstacle problem corresponding to the (1, 1) block of the 2 × 2 system, and later solving a reduced linear system by annihilating the rows and columns corresponding to identified active sets. For solving the quadratic obstacle problem, various optimal multi-grid like methods have been proposed. However solving the reduced system remains a major bottleneck. In this paper, we explore an effective preconditioner for the reduced linear system that allows solving large scale optimization problem corresponding to Cahn-Hilliard and to possibly similar models.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123670735","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: 5
DCT trigger for a detection of very inclined showers in the Pierre Auger surface detector engineering array in the new high-resolution Front-End based on the Cyclone V FPGA 在基于Cyclone V FPGA的新型高分辨率前端Pierre Auger表面探测器工程阵列中，用于检测非常倾斜的阵雨的DCT触发器
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F159
Z. Szadkowski
{"title":"DCT trigger for a detection of very inclined showers in the Pierre Auger surface detector engineering array in the new high-resolution Front-End based on the Cyclone V FPGA","authors":"Z. Szadkowski","doi":"10.15439/2015F159","DOIUrl":"https://doi.org/10.15439/2015F159","url":null,"abstract":"The paper presents the first results from the trigger based on the Discrete Cosine Transform (DCT) operating in the new Front-End Boards with Cyclone V FPGA deployed in 8 test surface detectors in the Pierre Auger Engineering Array.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123881234","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
Control unit for power subsystem of a wireless sensor node 无线传感器节点电源子系统的控制单元
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F355
Michal Kochlán, S. Zák, J. Micek, Jana Milanová
{"title":"Control unit for power subsystem of a wireless sensor node","authors":"Michal Kochlán, S. Zák, J. Micek, Jana Milanová","doi":"10.15439/2015F355","DOIUrl":"https://doi.org/10.15439/2015F355","url":null,"abstract":"This paper addresses analysis of the principle of a bi-directional electric energy charge pump and describes circuit solution for control unit of a wireless sensor node power subsystem. This power and control unit, as the power subsystem of the wireless node, comprises two supercapacitors. Bi-directional energy flow between these two supercapacitors takes place in order to optimally satisfy the sensor node energy requirements. At the same time, the bi-directional energy flow enables optimal energy harvesting from the selected energy scavenging (harvesting) subsystem. The mentioned Power Unit Control System has been successfully verified in the process of energy harvesting from a solar module.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130896977","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
Enhanced simulation performance through parallelization using a synthetic and a real-world simulation model 通过使用合成仿真模型和真实仿真模型的并行化来增强仿真性能
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F226
T. Baumann, B. Pfitzinger, Dragan Macos, T. Jestädt
{"title":"Enhanced simulation performance through parallelization using a synthetic and a real-world simulation model","authors":"T. Baumann, B. Pfitzinger, Dragan Macos, T. Jestädt","doi":"10.15439/2015F226","DOIUrl":"https://doi.org/10.15439/2015F226","url":null,"abstract":"Taking an existing large-scale simulation model of the German toll system we identify possibilities for parallelization in order to enhance simulation performance. We transform parts of the model from its current serial implementation to a parallel implementation. Afterwards we evaluate the achieved performance enhancement and compare the results to a synthetic benchmark model.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129387996","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
Traditional and agile project management in public sector and ICT 公共部门和信息通信技术的传统和敏捷项目管理
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F279
A. Kaczorowska
{"title":"Traditional and agile project management in public sector and ICT","authors":"A. Kaczorowska","doi":"10.15439/2015F279","DOIUrl":"https://doi.org/10.15439/2015F279","url":null,"abstract":"The article comprises the characteristics of traditional project management (TPM) and agile project management (APM) and indicates that when using a specific concept we should take into account the conditions of the sector in which the organization implementing or participating in IT projects is functioning. For it is not in all organizations that APM is more effective than TPM. Agility at the project level is one of the possibilities of which we should remember when seeking a tool for achievement of the organization's strategic objectives. However, such a tool becomes less effective if its use is not preceded by analysis of specific attainable benefits and conditions which have to be met to achieve such benefits. These conditions comprise, among other, the organizational and decision-making culture, projects financing method, as well as approach to change servicing, risk management or standardization of project management practices.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130863303","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: 18
Lessons learnt from designing indoor positioning system using 868 MHz radios and neural networks 利用868兆赫无线电和神经网络设计室内定位系统的经验教训
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F283
Michal Meina, Bartosz Celmer, Krzysztof Rykaczewski
{"title":"Lessons learnt from designing indoor positioning system using 868 MHz radios and neural networks","authors":"Michal Meina, Bartosz Celmer, Krzysztof Rykaczewski","doi":"10.15439/2015F283","DOIUrl":"https://doi.org/10.15439/2015F283","url":null,"abstract":"This paper summarizes our approach and experimental evaluation of infrastructure-based Indoor Positioning System (IPS) designed to be used by First Responders. We are using 868 MHz single channel, power-efficient radio markers and RSSI (Receiver Signal Strength Indicator) fingerprinting. Artificial Neural Network translates vectors of RSSI constructed using mobile units into position. Special preprocessing needs to be applied to on-line signal to construct a vector for classification.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130930412","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
Visual detection of objects by mobile agents using CBVIR techniques of low complexity 使用低复杂度CBVIR技术的移动代理对目标进行视觉检测
2015 Federated Conference on Computer Science and Information Systems (FedCSIS) Pub Date : 2015-10-11 DOI: 10.15439/2015F85
A. Sluzek
{"title":"Visual detection of objects by mobile agents using CBVIR techniques of low complexity","authors":"A. Sluzek","doi":"10.15439/2015F85","DOIUrl":"https://doi.org/10.15439/2015F85","url":null,"abstract":"Visual search for objects of interest in complex environment is an important (and still challenging) problem in mobile robotics. In particular, the usage of content-based visual information retrieval (CBVIR) methods, which are a natural choice for such tasks, is often constrained by the real-time requirements, and the mobility of searching agents is sometimes not sufficiently exploited in the search model. In this paper, a CBVIR-based scheme is proposed, which takes into account motion of the searching agents to achieve a low-cost and high-speed detection of objects of interest in cluttered scenes, with good overall performances. We combine standard CBVIR tools, i.e. MSER detector and SIFT descriptor (quantized into sufficiently large vocabularies) assuming additionally that objects become objects of interest only when approached closely enough by the mobile agent, i.e. when seen at an adequately large scale. Thus, an object of interest is considered detected only if a sufficient number of keypoints from the current video-frame are matched (including the corresponding matches of scales) to the keypoints from the database images of the object. Preliminary experiments on a limited-size dataset confirm performances of the scheme, although in the classical task of video-frame retrieval the scheme cannot compete with more sophisticated CBVIR algorithms. The scheme can prospectively become more flexible if combined with a range-finding device so that the approximate distances to the scene components within the currently inspected part of the image can be used to proportionally modify the scale correspondences.","PeriodicalId":276884,"journal":{"name":"2015 Federated Conference on Computer Science and Information Systems (FedCSIS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126908247","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
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