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2015 6th International Conference on Information, Intelligence, Systems and Applications (IISA)最新文献

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Data collection and analysis of GitHub repositories and users GitHub存储库和用户的数据收集和分析
Fragkiskos Chatziasimidis, I. Stamelos
In this paper, we present the collection and mining of GitHub data, aiming to understand GitHub user behavior and project success factors. We collected information about approximately 100K projects and 10K GitHub users//owners of these projects, via GitHub API. Subsequently, we statistically analyzed such data, discretized values of features via k-means algorithm, and finally we applied apriori algorithm via weka in order to find out association rules. Having assumed that project success could be measured by the cardinality of downloads we kept only the rules which had as right par a download cardinality higher than a threshold of 1000 downloads. The results provide intersting insight in the GitHub ecosystem and seven success rules for GitHub projects.
在本文中,我们介绍了对GitHub数据的收集和挖掘,旨在了解GitHub用户行为和项目成功因素。我们通过GitHub API收集了大约100K个项目和10K个GitHub用户//这些项目的所有者的信息。随后,我们对这些数据进行统计分析,通过k-means算法对特征值进行离散化,最后通过weka应用apriori算法找出关联规则。假设项目成功可以通过下载量基数来衡量,我们只保留那些下载量基数高于1000下载量阈值的规则。研究结果为GitHub生态系统提供了有趣的见解,并为GitHub项目提供了七条成功法则。
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引用次数: 17
On the construction of increasing-chord graphs on convex point sets 凸点集上增弦图的构造
K. Mastakas, A. Symvonis
A geometric path from s to t is increasing-chord, if while traversing it from s to t the distance to the following (resp. from the preceding) points of the path decreases (resp. increases). A geometric graph is increasing-chord if each two distinct vertices are connected with an increasing-chord path. We show that given a convex point set P in the plane we can construct an increasing-chord graph consisting of P, at most one Steiner point and at most 4|P| - 8 edges.
从s到t的几何路径是递增弦,如果在从s到t的过程中,到下面的距离(p。从前面)点的路径减少(响应。增加)。一个几何图形是递增和弦,如果每两个不同的顶点与递增和弦路径相连。我们证明了平面上给定一个凸点集P,我们可以构造一个由P、最多一个斯坦纳点和最多4|P| - 8条边组成的递增弦图。
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引用次数: 10
Monitoring people with MCI: Deployment in a real scenario for low-budget smartphones 监控具有MCI的人:在低预算智能手机的真实场景中的部署
Edgar Batista, Frederic Borras, A. Martínez-Ballesté
The SIMPATIC project (acronym for Intelligent System for the Private and Autonomous Surveillance based on Information and Communication Technologies, in Catalan) addresses the building of a monitoring system for people affected with Mild Cognitive Impairments (MCI). It consists of a mobile app running on the patient's smartphone and a server that analyses the device's location and raises alarms under certain conditions. This is a research project that comprises both technological and human challenges. Regarding the technological aspects, we have not merely built a testbed prototype: our technology has been tested in a real-life scenario. In this paper we address the implementation aspects and technological results of the pilot test conducted within the SIMPATIC project. We describe the architecture of the SIMPATIC system as well as its functionalities, but we focus on the implementation aspects that make our software a fully functional monitoring system based on smartphones and web technology.
SIMPATIC项目(加泰罗尼亚语是基于信息和通信技术的私人和自主监视智能系统的首字母缩写)致力于为轻度认知障碍(MCI)患者建立一个监测系统。它由一个在患者智能手机上运行的移动应用程序和一个分析设备位置并在特定条件下发出警报的服务器组成。这是一个包括技术和人类挑战的研究项目。关于技术方面,我们不仅建立了一个试验台原型:我们的技术已经在一个真实的场景中进行了测试。在本文中,我们讨论了在SIMPATIC项目中进行的试点测试的实施方面和技术结果。我们描述了SIMPATIC系统的架构及其功能,但我们关注的是实现方面,使我们的软件成为一个基于智能手机和web技术的功能齐全的监控系统。
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引用次数: 11
A study on Ant Miner parameters 蚂蚁矿机参数的研究
R. Robu, C. Vașar, Nicolae Robu, S. Holban
Ant Miner is the application of Ant Colony Optimization algorithm in data classification problem. Since it was proposed by Parpinelli et al., in 2001, a lot of data classification studies were performed with the aid of this algorithm. Also a lot of comparisons were performed between the results obtained with this algorithm and the results obtained by improved Ant Miner algorithms. Usually, in different studies different values were chosen for the input parameters such as the number of ants, the minimum number of instances covered by each rule, and so on. So we ask the question how to choose the values of input parameters in order to obtain good results for output parameters like prediction accuracy, the number of discovered rules and the execution time? In this paper we run on 15 datasets obtained from UCI Machine Learning Repository a number of 32 combinations of input parameters, and we try to find connections between the values of the input parameters and the obtained results. Finally we wrote a set of remarks regarding Ant Miner parameters, which may be useful in choosing input parameters in different studies in order to obtain overall good results. Before starting the experiments we performed a small modification to the Ant Miner open source code in order to assure that each run will work with the same subsets of data, for a fair comparison of results.
蚂蚁矿机是蚁群优化算法在数据分类问题中的应用。自2001年Parpinelli等人提出该算法以来,大量的数据分类研究都是借助该算法进行的。并将该算法的结果与改进的Ant Miner算法的结果进行了比较。通常,在不同的研究中,输入参数(如蚂蚁数量、每条规则覆盖的最小实例数等)会选择不同的值。因此,我们提出了这样一个问题:如何选择输入参数的值,以便在预测精度、发现规则的数量和执行时间等输出参数方面获得良好的结果?在本文中,我们在从UCI机器学习存储库获得的15个数据集上运行了32种输入参数的组合,我们试图找到输入参数的值与获得的结果之间的联系。最后,我们写了一组关于Ant Miner参数的备注,这可能有助于在不同的研究中选择输入参数,以获得总体良好的结果。在开始实验之前,我们对Ant Miner开源代码进行了一个小修改,以确保每次运行都使用相同的数据子集,从而公平地比较结果。
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引用次数: 6
A review on Zero Energy Buildings and intelligent systems 零能耗建筑与智能系统研究综述
Eleni S. Vergini, P. Groumpos
In recent years the concept of Zero Energy Building (ZEB) has attracted international interest and has led to the beginning of a new generation of buildings. There is a worldwide attempt to define the concept of ZEB and specify a methodology of modeling its operation. Defining the parameters that should be taken into consideration and classifying ZEBs helps that attempt. Energy management and intelligent control are playing a key role in the successful operation of a ZEB, improving its performance and reducing its consumption. The method of Fuzzy Cognitive Maps (FCMs) is appropriate for problems with many parameters, where mathematical modeling and calculations have difficult or, in some cases, impossible solution. ZEB is a complex system and therefore it should be as "intelligent" as possible and the use of FCMs in ZEB operation modeling is a very promising field.
近年来,零能耗建筑(ZEB)的概念引起了国际上的兴趣,并导致了新一代建筑的开始。全世界都在尝试定义ZEB的概念,并指定一种对其操作建模的方法。定义应该考虑的参数并对zeb进行分类有助于这一尝试。能源管理和智能控制在ZEB的成功运行、提高其性能和降低能耗方面发挥着关键作用。模糊认知图(fcm)方法适用于数学建模和计算有困难或在某些情况下无法解决的多参数问题。ZEB是一个复杂的系统,因此它应该尽可能“智能”,在ZEB操作建模中使用fcm是一个非常有前途的领域。
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引用次数: 14
Introducing sailboats into ship routing system VISIR 将帆船引入船舶路由系统VISIR
G. Mannarini, R. Lecci, G. Coppini
A prototype of sailboat routing system for least-time navigation is presented. The routing algorithm is based on an exact graph-search method, not requiring subjective optimization parameters. The temporal variation of wind fields during the sailing time is accounted for. The system also considers topological constraints such as coastline and shallow waters. The sailboat is modelled in terms of its polar plot. Wind forecasts from multiple providers are accepted as an input. Case studies show that the algorithm consistently computes tacking, jibing, and other route diversions functional to the maximum exploitation of the sailboat performance, as provided through its polar plot. The present version of the system targets races with path lengths in the range of tens of nautical miles or more.
提出了一种基于最小时间导航的帆船路由系统原型。该路由算法基于精确图搜索方法,不需要主观优化参数。计算了航行过程中风场的时间变化。该系统还考虑了海岸线和浅水等拓扑约束。这艘帆船是根据它的极坐标绘制的。接受来自多个供应商的风力预测作为输入。案例研究表明,该算法始终如一地计算航向,jibing和其他航线改道功能,以最大限度地利用帆船性能,通过其极坐标图提供。当前版本的系统目标是路径长度在几十海里或更长范围内的比赛。
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引用次数: 9
Coalescing terrestrial laser scanning and aerial orthophotography for urban 3D modelling 结合地面激光扫描和航空正射影摄影的城市三维建模
A. Konstantaras, J. Kilty, E. Maravelakis
Recent advances in aerial photography enabled cadastrates of several countries to proceed to the cartography of rural areas and record existing forestry, farming yards, plane fields and registered land ownerships. Efforts are being made to expand this project to urban areas as well, where the main object of interest apart from land itself are the buildings themselves. The main difficulty with buildings is that they are 3D objects and additional to their planar expansion there is also their height that is of significance as well. This paper aims to comprise planar information obtained through features' extraction from ortho-open aerophotographs with vertical information obtained using terrestrial laser scanning to produce three dimensional models of multiple neighboring building blocks in an urban area. Results from the application of the proposed approach to the historic 1866 square in Chania, Greece, demonstrate both the capabilities and difficulties associated with such an attempt and derive useful conclusions for future advancements that can lead to valuable topographical urban three dimensional mappings.
航空摄影技术的最新进展使若干国家的地籍地能够着手绘制农村地区的地图,并记录现有的森林、农场、飞机场和已登记的土地所有权。正在努力将该项目扩展到城市地区,在城市地区,除了土地本身之外,主要的兴趣对象是建筑物本身。建筑的主要困难在于它们是3D对象,除了它们的平面扩展外,它们的高度也很重要。本文旨在将正交开放航拍影像特征提取得到的平面信息与地面激光扫描得到的垂直信息相结合,生成城市区域内多个相邻建筑块的三维模型。将该方法应用于希腊哈尼亚历史悠久的1866年广场的结果,展示了这种尝试的能力和困难,并为未来的进步得出有用的结论,这些结论可以导致有价值的城市地形三维映射。
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引用次数: 0
Hybrid-based optimization of wireless channel characterization for health services in medical complex environments 基于混合的医疗复杂环境中健康服务无线信道特性优化
Fran Casino, L. Azpilicueta, P. López-Iturri, E. Aguirre, F. Falcone, A. Solanas
Nowadays, plenty of simulation techniques based on deterministic methods like Ray Tracing and Ray Launching, combining Geometric Optics and Uniform Theory of Diffraction, are used to predict waves' behaviour within a defined environment and to make better decisions on the deployment of antennas for particular purposes. However, simulations' quality largely depends on the number of rays, providing sufficient angular resolution in the ray launching process. The computational cost of simulations in high definition (HD) prevents their use in complex environments and their low definition (LD) counterparts are used. In this article we propose a technique based on collaborative filtering (CF) to lessen the low quality problems of LD simulations. Such technique outperforms previous works in this field in terms of accuracy, precision and computational cost. Moreover, we show that our approach obtains results very similar to those of HD in much less time. Therefore, using combined deterministic-CF techniques allows the estimation of radio-planning tasks in large, complex medical scenarios with a potentially large amount of transceivers.
如今,许多基于确定性方法的模拟技术,如射线追踪和射线发射,结合几何光学和均匀衍射理论,被用来预测波在特定环境中的行为,并为特定目的做出更好的天线部署决策。然而,模拟的质量很大程度上取决于光线的数量,在光线发射过程中提供足够的角分辨率。高清晰度(HD)模拟的计算成本阻碍了它们在复杂环境中的应用,而低清晰度(LD)模拟则被使用。在本文中,我们提出了一种基于协同滤波(CF)的技术来减少LD仿真的低质量问题。该技术在精度、精密度和计算成本方面都优于该领域的前人研究成果。此外,我们表明,我们的方法在更短的时间内获得了与HD非常相似的结果。因此,使用组合确定性- cf技术可以在具有潜在大量收发器的大型复杂医疗场景中估计无线电规划任务。
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引用次数: 9
Panic in the gallery: An online educational game for art history: Design and evaluation of a matching game 画廊中的恐慌:一款在线艺术史教育游戏:匹配游戏的设计和评估
Crysanthi Tseloudi, T. Tsiatsos
With the evolution of technology, social media and mobile devices, digital games have become a frequent form of entertainment for many people. As games can provide a fun environment, where students can actively learn content through actions and decisions, there are high hopes that game-based learning can be used both in and outside the classroom and yield positive learning outcomes. The aim of this study is to evaluate the effectiveness and enjoyment of a game created for art history learning, on adults of various ages, with a different art history background and game experience and to hopefully help educational game creators get closer to a balance between fun and learning.
随着科技、社交媒体和移动设备的发展,数字游戏已经成为许多人常见的娱乐形式。由于游戏可以提供一个有趣的环境,学生可以通过行动和决策积极地学习内容,因此基于游戏的学习可以在课堂内外使用,并产生积极的学习成果。这项研究的目的是评估一款针对不同年龄、不同艺术史背景和游戏经验的成年人的艺术史学习游戏的有效性和乐趣,并希望帮助教育游戏创作者更接近于乐趣和学习之间的平衡。
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引用次数: 3
Dyslexia friendly reader: Prototype, designs, and exploratory study 阅读障碍友好型阅读器:原型、设计和探索性研究
Dominik Lukes
This paper describes results of an evaluation of a prototype of a dyslexia-friendly reader app developed based on analysis of readability research and a survey of existing technology. It consists of 1) mock up designs of a reader application based on research that identified shortcomings of existing reader apps as well as the best available research on reading by dyslexic readers, 2) a prototype reader implementing some significant features of this design, 3) results from an observational study of young readers identified as struggling with literacy. In addition, the papers offers an overview of the state of the art of research and provide a brief survey of existing reader applications on current mobile platforms. The research and development described in this paper was conducted as part of the EU FP7ICT project iLearnRW - Integrated Intelligent Learning Environment for Reading and Writing (318803).
本文描述了一个基于可读性研究分析和现有技术调查的阅读障碍友好型应用程序原型的评估结果。它包括:1)基于现有阅读应用程序的缺陷以及对阅读困难读者阅读的最佳研究的阅读应用程序的模拟设计;2)实现该设计的一些重要功能的原型阅读器;3)对识字困难的年轻读者的观察研究结果。此外,论文还概述了研究的现状,并对当前移动平台上现有的阅读器应用程序进行了简要调查。本文中描述的研究和开发是作为欧盟FP7ICT项目iLearnRW -读写综合智能学习环境(318803)的一部分进行的。
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引用次数: 12
期刊
2015 6th International Conference on Information, Intelligence, Systems and Applications (IISA)
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