2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS)最新文献_第10页

An Accurate Probabilistic Model for Community Evolution Analysis in Social Network 社会网络中社区进化分析的精确概率模型

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.21

I. Gueye, Joseph Ndong, Idrissa Sarr

{"title":"An Accurate Probabilistic Model for Community Evolution Analysis in Social Network","authors":"I. Gueye, Joseph Ndong, Idrissa Sarr","doi":"10.1109/SITIS.2015.21","DOIUrl":"https://doi.org/10.1109/SITIS.2015.21","url":null,"abstract":"The scope of the work is to build a framework able to study the evolution of a set of communities based on their underlying social activities. Generally, for a given community, many subgroups may exist and evolve with different and various opinions or behaviors. So, in this paper, we will focus on the identification of the potential subgroups and their potential relation/correlation corresponding to self-similarity over time. Clearly, we want to know if the subgroups remain unchanged then being stable or might they evolve to merge by forming new groups. In this respect, social engagement that refers to the participation of actors from a community to the activities of a social group is used to distribute activities into several classes. So building subgroups will be our first challenge and analyzing temporal correlation between them will be another interesting issue in this present work. The first problem can be solved by analyzing the activities inside the given initial community. We believe that, in many situations, activities should be characterized by parametric distributions as the gaussians. So, by means of the gaussian mixture modeler (GMM), subgroups can be identified successfully. Thereafter, the intrinsic relation between subgroups and their temporal evolution can be studied clearly with the calibration of hidden Markov models (HMM). The achievement of this study can help management operators to take decisions in two ways: i) since each GMM subgroup may correspond to a single individual's opinion/behavior, typical decision could be made for a given social group ii) also, the manager can take advantageous decisions by merging opinions for subgroups which have self-similarities, the HMM is here to learn more about this issue. We show the effectiveness of our approach by using real life data from Reddit.com.","PeriodicalId":128616,"journal":{"name":"2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131182334","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

Topological Evaluation of Methods for Reconstruction of Genetic Regulatory Networks 遗传调控网络重建方法的拓扑评价

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.107

Jakub Olczak, N. Kiani, H. Zenil, J. Tegnér

{"title":"Topological Evaluation of Methods for Reconstruction of Genetic Regulatory Networks","authors":"Jakub Olczak, N. Kiani, H. Zenil, J. Tegnér","doi":"10.1109/SITIS.2015.107","DOIUrl":"https://doi.org/10.1109/SITIS.2015.107","url":null,"abstract":"Network inference is advancing rapidly, and new methods are proposed on a regular basis. Understanding the advantages and limitations of different network inference methods is key to their effective application in different circumstances. The common structural properties shared by diverse networks naturally pose a challenge when it comes to devising accurate inference methods, but surprisingly, there is a paucity of comparison and evaluation methods. Historically, every new methodology has only been tested against \"gold standard\" purpose-designed synthetic and real-world (validated) biological networks. In this paper we aim to assess the impact of taking into consideration topological aspects on the evaluation of the final accuracy of an inference procedure. Specifically, we will compare the best inference methods, in statistical terms, for preserving the topological properties of synthetic and biological networks. A new method for performance comparison is introduced by borrowing ideas from gene set enrichment analysis. Experimental results show that no individual algorithm stands out among the three inference tasks assessed, and the challenging nature of network inference is evident in the struggle of some of the algorithms to turn in a performance that's better than random guesswork. Therefore care should be taken to suit the method used to the specific purpose.","PeriodicalId":128616,"journal":{"name":"2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129861760","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

Boosting of Association Rules for Robust Emergency Detection 鲁棒紧急检测中关联规则的增强

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.105

Emanuele Cipolla, Filippo Vella

引用次数: 3

Thai Handwritten Verification System on Documents for the Investigation 调查文件的泰文手写验证系统

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.70

Narit Hnoohom, Narumol Chumuang, M. Ketcham

引用次数: 12

Video-Based People Fall Detection via Homography Mapping of Foreground Polygons from Overlapping Cameras 基于重叠摄像机前景多边形单应性映射的视频人物跌落检测

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.56

Mikaël A. Mousse, C. Motamed, E. C. Ezin

引用次数: 3

A First Prototype for Indexing, Visualizing and Mining Heterogeneous Data in Mediterranean Ecology: Within the IndexMed Consortium Interdisciplinary Framework 索引，可视化和挖掘地中海生态异构数据的第一个原型:在IndexMed联盟跨学科框架内

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.119

R. David, J. Féral, S. Gachet, Alrick Dias, C. Blanpain, J. Lecubin, C. Diaconu, C. Surace, K. Gibert

{"title":"A First Prototype for Indexing, Visualizing and Mining Heterogeneous Data in Mediterranean Ecology: Within the IndexMed Consortium Interdisciplinary Framework","authors":"R. David, J. Féral, S. Gachet, Alrick Dias, C. Blanpain, J. Lecubin, C. Diaconu, C. Surace, K. Gibert","doi":"10.1109/SITIS.2015.119","DOIUrl":"https://doi.org/10.1109/SITIS.2015.119","url":null,"abstract":"Although biodiversity has been extensively studied over the last centuries, recent evidences suggest that links between collected data are still be missing. In order to fill this knowledge gap and at the initiative of the CNRS Institute of Ecology and Environment (INEE), IndexMed, a unique and multidisciplinary consortium consisting of ecologists, sociologists, economists, mathematicians, IT specialists and astronomers was created. Through exploratory projects, IndexMed develops new methods for analyzing data on Mediterranean biodiversity and implements solutions based on interoperability technologies already deployed in other disciplines. In particular, IndexMed aims to build a prototype of such data graphs and \"data cubes\". This paper will first explore the ability of tools and methods by means of graphs to connect biodiversity objects with non-centralized data. It will then introduce the use of algorithms and graphs to analyze environmental and societal responses and presents a prototype under development.","PeriodicalId":128616,"journal":{"name":"2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130914738","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

A Person Re-Identification System for Mobile Devices 移动设备的人员再识别系统

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.96

George A. Cushen

引用次数: 3

Multi-agent System to Support Creative Workshop 支持创意工坊的多代理系统

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.114

Alex Gabriel, D. Monticolo, M. Camargo, M. Bourgault

引用次数: 3

Heart Sound Enhancement Based on Improved Spectral Subtraction 基于改进谱减法的心音增强

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.54

Lu Zhang, Lei Wang

引用次数: 1

Development of Color QR Code for Increasing Capacity 提高容量的彩色QR码的开发

2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) Pub Date : 2015-11-23 DOI: 10.1109/SITIS.2015.42

Nutchanad Taveerad, S. Vongpradhip

{"title":"Development of Color QR Code for Increasing Capacity","authors":"Nutchanad Taveerad, S. Vongpradhip","doi":"10.1109/SITIS.2015.42","DOIUrl":"https://doi.org/10.1109/SITIS.2015.42","url":null,"abstract":"Barcodes have been widely popular. Their popularity has encouraged an ongoing invention of decoding methods. Barcodes can be categorized into 2 main groups, namely one-dimension (1D) barcodes at which information is stored horizontally and two-dimension (2D) barcodes which contain information in both vertical and horizontal direction, promising a higher storage capacity compared to 1D barcodes. Despite high data density, an amount of information obtained in 2D barcodes still limited to some extent. This study selected QR Code (Quick Response Code) is a type of 2D barcode because firstly, it can handle a variety of information. Secondly, decoding is reasonably straightforward. Finally, the structure of QR code is specified clearly by its developer. This research aimed to increase QR Code capacity by proposing a color Quick Response Code (color QR code) encoding concept which can hold a larger amount of information than that of the traditional black and white QR Code regarding their physical size. A two-color (black and white) QR Code can store 1 bit in each module only, whereas a module of a color QR code with sixteen different colors can contain 4-bit data. In order to decode a color QR code, this study used a code reader equipped with at least an 8-megapixel camera and a decoding application was developed on Android (Android application on mobile phone) and Java (Java application on PC) platform.","PeriodicalId":128616,"journal":{"name":"2015 11th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS)","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117354064","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: 17