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2012 16th Panhellenic Conference on Informatics最新文献

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A Forest Fire Detection System: The Meleager Approach 森林火灾探测系统:Meleager方法
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCi.2012.62
V. Tsetsos, O. Sekkas, G. Tsoublekas, S. Hadjiefthymiades, E. Zervas
{"title":"A Forest Fire Detection System: The Meleager Approach","authors":"V. Tsetsos, O. Sekkas, G. Tsoublekas, S. Hadjiefthymiades, E. Zervas","doi":"10.1109/PCi.2012.62","DOIUrl":"https://doi.org/10.1109/PCi.2012.62","url":null,"abstract":"Forest fires cause immeasurable damages to indispensable resources for human survival, destroy the balance of earth ecology and worst of all they frequently cost human lives. In recent years, early fire detection systems have been emerged to provide monitoring and prevention of the disasterous forest fires. Among them, the Meleager1 system aims to offer one of the most advanced and integrated technology solutions for fire protection worldwide by integrating several innovative features. This paper outlines one of the major components of the Meleager system, that is the visual fire detection sybsystem. Ground based visible range PTZ cameras monitor the area of interest and a low level decision fusion scheme is used to combine individual decisions of noumerous fire detection algorithms. Personalized alerts and induced feedback is used to adapt the detection process and improve the overall system performance.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115601416","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: 11
A Linear Algebra Approach to C-Means Clustering Using GPUs and MPI 基于gpu和MPI的c均值聚类的线性代数方法
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCi.2012.24
Apostolos Glenis, Vu Pham
{"title":"A Linear Algebra Approach to C-Means Clustering Using GPUs and MPI","authors":"Apostolos Glenis, Vu Pham","doi":"10.1109/PCi.2012.24","DOIUrl":"https://doi.org/10.1109/PCi.2012.24","url":null,"abstract":"The fuzzy c-means clustering is a well-known unsupervised algorithm and has been widely used in various pattern recognition applications. As the amount of data increase, however, the basic serial implementation becomes overwhelmed. This is the main motivation for utilizing the computational power of parallel machines to speed up the c-means algorithm. We present an algorithm that exploits the mathematical equations in c-means to create building blocks based on linear algebra functions that are optimized for most available parallel architectures. We implemented our algorithm on both GPU (using CUDA and CUBLAS) and MPI (using MPI4py and NumPy), then evaluated their performance and scalability. Experiments show that our implementation outperforms all of available GPU implementations of c-means have been proposed so far.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127077188","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
Efficient Support of Context-Driven Interfaces for Mobile Devices 移动设备上下文驱动接口的有效支持
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCi.2012.26
V. Stefanis, A. Plessas, Andreas Komninos, J. Garofalakis
{"title":"Efficient Support of Context-Driven Interfaces for Mobile Devices","authors":"V. Stefanis, A. Plessas, Andreas Komninos, J. Garofalakis","doi":"10.1109/PCi.2012.26","DOIUrl":"https://doi.org/10.1109/PCi.2012.26","url":null,"abstract":"We examine the performance of the Fast Map algorithm when applied on mobile devices for context dimensionality reduction. Our results show that this algorithm is extremely fast and is appropriate for mobile context datasets that need to be processed in real time. This fact supports our vision for context-driven interfaces generated by applying the method of mobile context dimensionality reduction that will support the richness of data stored in personal devices.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127475373","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
Efficient Energy Consumption's Measurement on Android Devices Android设备的高效能耗测量
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCi.2012.29
K. Kapetanakis, S. Panagiotakis
{"title":"Efficient Energy Consumption's Measurement on Android Devices","authors":"K. Kapetanakis, S. Panagiotakis","doi":"10.1109/PCi.2012.29","DOIUrl":"https://doi.org/10.1109/PCi.2012.29","url":null,"abstract":"Modern mobile software and hardware is dominated by a paradox: while devices become smaller and services more resource- and energy-demanding, batteries almost maintain size and power. Among them, the multimedia applications consume the most of battery power. By measuring the battery charging level and efficiently estimating the remaining operational time of a portable device, reasonable usage of the device can be advised or appropriate adaptations to be activated. With respect to the measurement of energy consumption, a lot of research has been carried out recently. Most include the setup of a small \"in situ\" test-bed for conducting measurements via specific power instruments to monitor, gather, measure and analyze usage statistics and battery discharging. In this paper we describe a simple application we have developed using the Android API to collect data for the device's battery. The application logs the charging level of the battery upon the time for future processing. The accuracy of our application has been verified by a small test-bed we set up using an external power measurement tool. Finally, using this application we conducted measurements to estimate the impact of display's brightness and browser's cache on the consumed energy by a web 3D animation. The 3D animation was developed using X3Dom, which provides a cross platform, browser friendly and HTML5 compatible 3D scene.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125541008","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
Building Trust in Ad Hoc Distributed Resource-Sharing Networks Using Reputation-Based Systems 在基于声誉的分布式资源共享网络中建立信任
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCi.2012.28
George Hatzivasilis, C. Manifavas
{"title":"Building Trust in Ad Hoc Distributed Resource-Sharing Networks Using Reputation-Based Systems","authors":"George Hatzivasilis, C. Manifavas","doi":"10.1109/PCi.2012.28","DOIUrl":"https://doi.org/10.1109/PCi.2012.28","url":null,"abstract":"This paper provides an overview of reputation-based approaches aiming to enhance trusted functionality in ad hoc distributed resource-sharing networks. More specifically, it focuses on three essential functions, namely, secure routing, secure resource management and trusted service composition. We first note the necessity to use reputation and trust to establish safe and efficient collaboration in such networks and present the state-of-the-art for those three functions. Several reputation and trust metrics for protecting against malicious and selfish participants are investigated. Attacks on the evaluation process of reputation and trust are considered and more robust metrics are proposed. Both general and function specific issues are investigated and a declaration of the different requirements for those functions is provided.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122587776","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: 15
Developing RFID-Based Systems for Security in Marine Transportations 开发基于rfid的海上运输安全系统
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCI.2012.84
Kyprianos Papademetriou, D. Pnevmatikatos, A. Dollas, C. Koulamas, Stavros Aggelidakis, Petros Chatzidakis, Leonidas Vasilikiotis, M. Emmanouilidou
{"title":"Developing RFID-Based Systems for Security in Marine Transportations","authors":"Kyprianos Papademetriou, D. Pnevmatikatos, A. Dollas, C. Koulamas, Stavros Aggelidakis, Petros Chatzidakis, Leonidas Vasilikiotis, M. Emmanouilidou","doi":"10.1109/PCI.2012.84","DOIUrl":"https://doi.org/10.1109/PCI.2012.84","url":null,"abstract":"In marine transportations it is important to control effectively the boarding and debarkation of passengers and vehicles, as well as to effectively monitor the cargo. These procedures are usually handled using conventional ways such as barcode-based tickets and scanners. This technology, although used widely, has significant drawbacks and is outdated. In the present project we propose the use of Radio Frequency Identification Technology (RFID) technology to control these procedures. This paper describes the initial concept, the possible ways to fit the RFID technology in marine sector and the initial considerations on system architecture. We discuss the benefits of RFID over the barcode-based system in the context of the specific domain, the problems that may arise with its use and possible ways to tackle them. The research is carried out within the framework of the ongoing project \"MERIT\"1.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134107613","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
An Applicable Method for Evaluation of Web-Learning Platforms Content Quality and Usage 一种适用于网络学习平台内容质量和使用评价的方法
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCi.2012.33
I. Kazanidis, S. Valsamidis, Sotirios Kontogiannis, A. Karakos
{"title":"An Applicable Method for Evaluation of Web-Learning Platforms Content Quality and Usage","authors":"I. Kazanidis, S. Valsamidis, Sotirios Kontogiannis, A. Karakos","doi":"10.1109/PCi.2012.33","DOIUrl":"https://doi.org/10.1109/PCi.2012.33","url":null,"abstract":"The quality and the quantity of the e-Learning educational content is reflected by its usage. In this paper, old and new performance metrics and a simple performance prediction algorithm, for the measurement of both educational content as exposed by the educators and the usage of such educational material by the learners, are presented. Metrics and algorithms were tested in an experimental system implementation and the scenario examined took place in a Hellenic university. In this experimental system, authors propose a three level course performance evaluation algorithm and confirm both the system's capability and the performance metrics/algorithms success on tracking and following up the e-Learning educational content and usage.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133530728","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
An Ad Hoc-Based ERP for Medical Treatment Provision in Crisis Conditions 危机条件下基于Ad hoc的医疗服务ERP
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCi.2012.36
D. Vassis, B. Zafeiris, C. Skourlas, P. Belsis
{"title":"An Ad Hoc-Based ERP for Medical Treatment Provision in Crisis Conditions","authors":"D. Vassis, B. Zafeiris, C. Skourlas, P. Belsis","doi":"10.1109/PCi.2012.36","DOIUrl":"https://doi.org/10.1109/PCi.2012.36","url":null,"abstract":"Medical treatment in emergency situations and in conditions of crisis (fire, earthquake, debacle, war e.t.c.) differs from regular cases in terms of infrastructure availability, organization and time response. Typical ERP systems existing in the hospitals cannot be used, while the communication networks in which they are based are either unreachable, destroyed or out of use. Towards this direction, a small ERP is designed, based exclusively in ad hoc network infrastructure through smart phones. The platform can record requests for patients that need help and organize the further actions of nurses and doctors, together with the supply of medicines. Experimental results through a prototype and simulation show that traffic load is acceptable, while the processing overhead of information on the devices is small.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133837397","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
Managing Forest Fires with i-Protect Fire Simulation Module 用i-Protect火灾模拟模块管理森林火灾
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCi.2012.51
Ioannis Filippopoulos, G. Stamoulis, Panayotis Kikiras
{"title":"Managing Forest Fires with i-Protect Fire Simulation Module","authors":"Ioannis Filippopoulos, G. Stamoulis, Panayotis Kikiras","doi":"10.1109/PCi.2012.51","DOIUrl":"https://doi.org/10.1109/PCi.2012.51","url":null,"abstract":"Emergency management is an essential capability in modern society. As disasters can happen at any time and can differ from each other considerably, it is necessary to develop a supple framework which can comply with each situation. This article discusses the fire simulation component of i-Protect. i-Protect is an Emergency Management Framework aiming to support emergency management process during the four phases of a crisis: mitigation, preparedness, response and recovery.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114761099","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
Advanced Database Design and Modern Web Technologies Used in Nutrition Software Design 先进的数据库设计和现代网络技术在营养软件设计中的应用
2012 16th Panhellenic Conference on Informatics Pub Date : 2012-10-05 DOI: 10.1109/PCi.2012.68
N. Karanikolas, Anastasia Tritaki, Oleg Karavasileiadis
{"title":"Advanced Database Design and Modern Web Technologies Used in Nutrition Software Design","authors":"N. Karanikolas, Anastasia Tritaki, Oleg Karavasileiadis","doi":"10.1109/PCi.2012.68","DOIUrl":"https://doi.org/10.1109/PCi.2012.68","url":null,"abstract":"The aim of this paper is to point out the need for special skills indispensable for mobile and web applications, as these are formed today, as well as highlight some of the available solutions. These kind of applications have, almost always, distributed architectures with GUIs, databases and business logic living in different processing units. As a consequence of these architectures, the traffic of data/instructions over the network can cause less attractive software products. Moreover, such architectures usually communicate instructions to the GUI processor (usually a browser) with tagged text (usually HTML) that offers a limited set of GUI building (dialog) items. Fortunately, the available technology is more mature relative to the technology of the previous decade and can be used to overcome the mentioned problems (limited GUI items and increased network traffic for communicating data and instructions). Our approach is based on an interesting domain of software technology, the nutrition software design.","PeriodicalId":131195,"journal":{"name":"2012 16th Panhellenic Conference on Informatics","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114643163","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
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