2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011)最新文献

Defeating the insider threat via autonomic network capabilities 通过自主网络能力击败内部威胁

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716431

Faisal M. Sibai, D. Menascé

{"title":"Defeating the insider threat via autonomic network capabilities","authors":"Faisal M. Sibai, D. Menascé","doi":"10.1109/COMSNETS.2011.5716431","DOIUrl":"https://doi.org/10.1109/COMSNETS.2011.5716431","url":null,"abstract":"There has been a constant growing security concern on insider attacks on network accessible computer systems. Users with power credentials can do almost anything they want with the systems they own with very little control or oversight. Most breaches occurring nowadays by power users are considered legitimate access and not necessarily intrusions. Developing a solution for such a problem is challenging because power users need flexible requirements to administer or maintain their systems. The increased usage of virtual environments, virtual systems, teleworking, and remote usage has made network access the preferred method for system administration. This paper presents (1) the Autonomic Violation Prevention System (AVPS), a framework that provides a solution to this problem and meet the above mentioned challenges, and (2) a proof-of-concept prototype that embeds self-protection capabilities into traditional Network Intrusion Prevention Systems (NIPS). AVPS focuses on self-protection against security policy violations instead of malware, vulnerability, or exploit intrusions. AVPS heavily enforces separation of duties, promotes scalability, ease of use and manageability. The proof-of-concept prototype uses Snort in-line NIPS with our own customizations.","PeriodicalId":302678,"journal":{"name":"2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125543328","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: 20

Hulu in the neighborhood 附近的Hulu

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716501

Dongsu Han, D. Andersen, M. Kaminsky, K. Papagiannaki, S. Seshan

引用次数: 13

Augmenting topic models with user relations in context based communication services 在基于上下文的通信服务中增强带有用户关系的主题模型

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716478

V. T. Babu, K. Dhara, V. Krishnaswamy

{"title":"Augmenting topic models with user relations in context based communication services","authors":"V. T. Babu, K. Dhara, V. Krishnaswamy","doi":"10.1109/COMSNETS.2011.5716478","DOIUrl":"https://doi.org/10.1109/COMSNETS.2011.5716478","url":null,"abstract":"Context-based communication services analyze user data and offer new and novel services that enhance end user unified communication experience. These services rely on data analysis and machine learning techniques to predict user behavior. In this paper we look at topic modeling as an unsupervised learning tool to categorize user communication data for retrieval. However, modeling topics based on user communication data, such as emails, meetings, invites, etc, poses several interesting challenges. One challenge is that user communication, even for a single topic, varies with the current context of the participating users. Other challenges include low lexical content and high contextual data in communication corpus. Hence, relying primarily on lexical analysis could result in inferior topic models. In this paper, we look at this problem of modeling topics for documents based on user communication. First, we use Latent Dirichlet Allocation (LDA) for extracting topics. LDA models documents as a mixture of latent topics where each topic consists of a probabilistic distribution over words. Then we use a technique that overlays a user-relational model over the lexical topic model generated by LDA. In this paper, we present our work and discuss our results.","PeriodicalId":302678,"journal":{"name":"2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129925177","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

Loss behavior analysis and its application in design of link quality metrics 损耗行为分析及其在链路质量指标设计中的应用

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716415

Kameswari Chebrolu, Advait Mishra

{"title":"Loss behavior analysis and its application in design of link quality metrics","authors":"Kameswari Chebrolu, Advait Mishra","doi":"10.1109/COMSNETS.2011.5716415","DOIUrl":"https://doi.org/10.1109/COMSNETS.2011.5716415","url":null,"abstract":"Wireless losses play a significant role in determining the performance of many higher-layer protocols. Various measurement studies have presented results that explore the many facets of link behaviour. However, the results have often been contradictory. In the first half of the paper, we delve into understanding the underlying causes of losses and resolve two contradictions that appear in literature. One of the key insight we gain from this study is how packet loss manifests as a function of the packet count over which the averaging is done. This observation has wide applicability in many research domains that routinely employ loss rate measurements to dictate protocol behavior. To illustrate this point, we focus on a specific research domain: link quality metrics as employed in routing protocols. In the second half of the paper, we show that the popular link quality metric ETX [1] and variants thereof employ incorrect averaging which results in unstable and degraded performance. We modify the averaging mechanism based on our insight and term this modified version SLIQ. SLIQ stands for stability based link quality metric. The modification is simple yet subtle, and the performance improvement it provides is substantial. We carry out our evaluation of these metrics using realistic traces obtained from a wireless 802.11a testbed. We consider the impact the modified link metric has at both the routing layer and the application layer by defining appropriate performance metrics. When compared with ETX and another previously proposed metric ROMA [2], SLIQ provides stable and persistent routes (cuts the number of route flaps by a factor of 6) and can support twice as many high quality voice calls as ETX.","PeriodicalId":302678,"journal":{"name":"2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126407480","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

The local and global effects of traffic shaping in the internet 互联网流量形成的本地和全球影响

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716420

M. Marcon, Marcel Dischinger, K. Gummadi, Amin Vahdat

{"title":"The local and global effects of traffic shaping in the internet","authors":"M. Marcon, Marcel Dischinger, K. Gummadi, Amin Vahdat","doi":"10.1109/COMSNETS.2011.5716420","DOIUrl":"https://doi.org/10.1109/COMSNETS.2011.5716420","url":null,"abstract":"The Internet is witnessing explosive growth in traffic, in large part due to bulk transfers. Delivering such traffic is expensive for ISPs because they pay other ISPs based on peak utilization. To limit costs, many ISPs are deploying ad-hoc traffic shaping policies that specifically target bulk flows. However, there is relatively little understanding today about the effectiveness of different shaping policies at reducing peak loads and what impact these policies have on the performance of bulk transfers. In this paper, we compare several traffic shaping policies with respect to (1) the achieved reduction in peak network traffic and (2) the resulting performance loss for bulk transfers. We identified a practical policy that achieves peak traffic reductions of up to 50% with only limited performance loss for bulk transfers. However, we found that the same policy leads to large performance losses for bulk transfers when deployed by multiple ISPs along a networking path. Our analysis revealed that this is caused by certain TCP characteristics and differences in local peak utilization times.","PeriodicalId":302678,"journal":{"name":"2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011)","volume":"293 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132720729","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: 52

Vis-à-Vis: Privacy-preserving online social networking via Virtual Individual Servers Vis-à-Vis:通过虚拟个人服务器保护在线社交网络的隐私

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716497

Amre Shakimov, Harold Lim, R. Cáceres, Landon P. Cox, Kevin A. Li, Dongtao Liu, A. Varshavsky

引用次数: 140

Distributed fault tolerance for WSNs with routing tree overlays 具有路由树覆盖的wsn的分布式容错

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716433

Shanti Chilukuri, A. Sahoo

引用次数: 1

Research and application of One-class small hypersphere support vector machine for network anomaly detection 一类小超球支持向量机在网络异常检测中的研究与应用

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716425

Santosh Kumar, Sukumar Nandi, S. Biswas

引用次数: 7

Scalability of a distributed virtual environment based on a structured peer-to-peer architecture 基于结构化点对点架构的分布式虚拟环境的可伸缩性

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716424

Jiehua Chen, S. Grottke, Jan Sablatnig, R. Seiler, A. Wolisz

引用次数: 6

HySecNJoining: A hybrid secure node joining algorithm for wireless sensor network HySecNJoining:一种用于无线传感器网络的混合安全节点加入算法

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI: 10.1109/COMSNETS.2011.5716524

H. Kalita, A. Kar

引用次数: 3