Proceedings of the 21st Pan-Hellenic Conference on Informatics最新文献_第3页

Conceptualization of Game Based Approaches for Learning and Training on Cyber Security 基于游戏的网络安全学习与训练方法的概念化

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139415

Menelaos N. Katsantonis, P. Fouliras, I. Mavridis

引用次数: 11

Greek sign language vocabulary recognition using Kinect 使用Kinect识别希腊手语词汇

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139386

Nikolaos Gkigkelos, C. Goumopoulos

引用次数: 6

On the numerical solution of Helmholtz-type PDEs using an adaptive complex collocation technique 基于自适应复配技术的亥姆霍兹型偏微分方程数值解

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139394

P. A. Dinopoulos, E. G. Grylonakis, C. Filelis-Papadopoulos, G. Gravvanis

{"title":"On the numerical solution of Helmholtz-type PDEs using an adaptive complex collocation technique","authors":"P. A. Dinopoulos, E. G. Grylonakis, C. Filelis-Papadopoulos, G. Gravvanis","doi":"10.1145/3139367.3139394","DOIUrl":"https://doi.org/10.1145/3139367.3139394","url":null,"abstract":"In this paper1 we consider the numerical solution of Helmholtz-type Partial Differential Equations in convex polygons, using a numerical technique based on the unified transform method. The key step of this approach is the utilization of the so-called global relation, which is an equation that couples the integral transforms of the given and the unknown boundary data, characterizing a Dirichlet-to-Neumann map. Solving the global relation in the complex k-plane, results in the determination of the missing boundary values, given a computational domain and prescribed boundary conditions. The considered numerical technique depends on the partitioning of the computational domain into a predetermined number of concentric polygons where the solution is required. Starting from the boundaries and proceeding towards the center of the domain, a spatial-marching procedure is used in order to compute the solution at each concentric polygon, using the Dirichlet and Neumann values computed via the global relations. The global relations are solved numerically using a collocation method in the complex k-plane, adapting the k-parameter at each spatial level. Numerical results indicating the applicability of the proposed method are provided, along with discussions concerning the implementation details.","PeriodicalId":436862,"journal":{"name":"Proceedings of the 21st Pan-Hellenic Conference on Informatics","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132085925","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 Wavelets for Matching Records Privately 用小波私下匹配记录

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139371

T. C. Theodosiou, Dimitrios Karapiperis, Vassilios S. Verykios

引用次数: 0

Proposed open source architecture for Long Range monitoring. The case study of cattle tracking at Pogoniani 提出了远程监控的开源架构。Pogoniani的牛追踪案例研究

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139437

N. Zinas, Sotirios Kontogiannis, G. Kokkonis, S. Valsamidis, I. Kazanidis

引用次数: 20

Automated hand gesture recognition exploiting Active Learning methods 利用主动学习方法的自动手势识别

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139414

Vangjel Kazllarof, Stamatis Karlos, S. Kotsiantis, M. Xenos

引用次数: 1

Analyzing Programming Languages' Energy Consumption: An Empirical Study 程序设计语言的能量消耗分析:一个实证研究

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139418

Stefanos Georgiou, M. Kechagia, D. Spinellis

{"title":"Analyzing Programming Languages' Energy Consumption: An Empirical Study","authors":"Stefanos Georgiou, M. Kechagia, D. Spinellis","doi":"10.1145/3139367.3139418","DOIUrl":"https://doi.org/10.1145/3139367.3139418","url":null,"abstract":"Motivation: The energy efficiency of it-related products, from the software perspective, has gained vast popularity the recent years and paved a new emerging research field. However, there is limited number of research works regarding the energy consumption of relatively small programming tasks. This knowledge is critical to be known especially in cases where millions of small tasks are running in parallel on multiple devices all around the globe. Goal: In this preliminary study, we aim to identify energy implications of small, independent tasks developed in different programming languages; compiled, semi-compiled, and interpreted ones. Method: To achieve our purpose, we collected, refined, compared, and analyzed a number of implemented tasks from Rosetta Code, that is a publicly available Repository for programming chrestomathy. Results: Our analysis shows that among compiled programming languages such as C, C++, Java, and Go offer the highest energy efficiency for all of our tested tasks compared to C#, VB.Net, and Rust. Regarding interpreted programming languages PHP, Ruby, and JavaScript exhibit the most energy savings compared to Swift, R, Perl, and Python.","PeriodicalId":436862,"journal":{"name":"Proceedings of the 21st Pan-Hellenic Conference on Informatics","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127214081","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

Teaching software project management using agile paradigm 使用敏捷范式教授软件项目管理

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139413

P. Fitsilis, Alex Lekatos

引用次数: 5

Privacy preserving platform for profitable mobile crowd sensing and users' adoption 为有利可图的移动人群感知和用户采用隐私保护平台

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139403

G. Spathoulas, Paraskevi Vennou, Alexandros Loukidis

引用次数: 1

Cloud Computing Business Value and Human Determinants: An Empirical Investigation 云计算商业价值与人的决定因素:一项实证调查

Proceedings of the 21st Pan-Hellenic Conference on Informatics Pub Date : 2017-09-28 DOI: 10.1145/3139367.3139485

N. Kyriakou, E. Loukis

{"title":"Cloud Computing Business Value and Human Determinants: An Empirical Investigation","authors":"N. Kyriakou, E. Loukis","doi":"10.1145/3139367.3139485","DOIUrl":"https://doi.org/10.1145/3139367.3139485","url":null,"abstract":"There are high expectations that cloud computing (CC) can generate sizeable business value (BV) for firms, which includes important benefits, associated with costs reduction, agility enhancement and innovation facilitation and support. However, limited empirical research has been conducted in this direction, in order to investigate to what extent these high expectations are fulfilled, as well as the level of business value that firms realize from CC, and the magnitudes of the specific benefits that firms really obtain from it, as well as their determinants. Our paper contributes to filling this research gap. It investigates the effect of a set of human factors, which concern firm's general human capital, ICT specific human capital, as well the co-operation and relationship between the personnel of the ICT unit and the personnel of the business units, on the BV generated by CC, having as theoretical foundation the 'resource-based view' of the firm theory. For this purpose, we have used data collected through a survey from 115 firms from technologically developed sectors of the Greek economy, from which a CC BV regression model has been estimated. It has been concluded that neither firm's general human capital (quantified by the share of firm's employees having tertiary-level formal education), nor its ICT human capital (quantified by the share of ICT employees), per se impact the BV generated by CC. On the contrary, the relationship and co-operation between the ICT unit personnel and the business units' personnel have a positive effect on the BV from CC usage. Our findings indicate that it is not the mere acquisition of human resources (highly educated business and ICT employees), but their utilization for the development of capability for productive and effective co-operation and relationship among the ICT and business personnel, that can lead to higher levels of BV from CC usage.","PeriodicalId":436862,"journal":{"name":"Proceedings of the 21st Pan-Hellenic Conference on Informatics","volume":"73 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114005241","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