Ravi Santosh Arvapally, Xiaoqing Frank Liu, Wei Jiang
{"title":"Identification of faction groups and leaders in Web-based intelligent argumentation system for collaborative decision support","authors":"Ravi Santosh Arvapally, Xiaoqing Frank Liu, Wei Jiang","doi":"10.1109/CTS.2012.6261098","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261098","url":null,"abstract":"Argumentation is an important and critical process in a collaborative decision making environment. Several argumentation frameworks and systems have been proposed for collaborative decision making earlier. However, limited decision support is provided to stakeholders. In an argumentation process, stakeholders tend to form groups, called faction groups based on their opinions and exchange of arguments. Each faction group is usually led by a faction leader in the group. Identification of faction groups and leaders in argumentation becomes an important challenge which has not been addressed adequately in the past. The faction assessment in argumentation provides the decision maker with more information about faction groups and their opinions towards the given issue and it helps the decision maker with logical and analytical competency to assess and analyze post-decision effects on each faction group and faction leaders, and make rational decisions. In this paper, we present a framework for identifying faction groups and faction leaders in an argumentation process using the K-means clustering algorithm. It is evaluated using a data set: an argumentation tree developed by a group of 24 stakeholders in an argumentation process using our web-based intelligent argumentation system for collaborative decision support. The experiment results show that the framework works effectively for faction assessment.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124816914","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}
P. Burnap, Irena Spasic, W. A. Gray, Jeremy Hilton, O. Rana, G. Elwyn
{"title":"Protecting patient privacy in distributed collaborative healthcare environments by retaining access control of shared information","authors":"P. Burnap, Irena Spasic, W. A. Gray, Jeremy Hilton, O. Rana, G. Elwyn","doi":"10.1109/CTS.2012.6261095","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261095","url":null,"abstract":"Access control and privacy policies change during the course of collaboration. Information is often shared with collaborators outside of the traditional “perimeterized” organizational computer network. At this point the information owner (in the legal data protection sense) loses persistent control over their information. They cannot modify the policy that controls who accesses it, and have that enforced on the information wherever it resides. However, if patient consent is withdrawn or if the collaboration comes to an end naturally, or prematurely, the owner may be required to withdraw further access to their information. This paper presents a system that enhances the way access control technology is currently deployed so that information owners retain control of their access control and privacy policies, even after information has been shared.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121140105","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}
{"title":"Collaborative annotation of real time streams on android-enabled devices","authors":"Tao Huang, G. Fox","doi":"10.1109/CTS.2012.6261025","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261025","url":null,"abstract":"Mobile based collaboration such as image tagging and video annotation has become a research hotspot for both academic groups and the industry. Mobile devices running with Google Android or Apples iOS have almost the same computing and multimedia capabilities as modern computers, which enables conducting regular collaborative activities on them. Moreover their embedded geographic sensors can provide useful auxiliary metadata to help improve the accuracy of several collaboration features such as location annotation and tagging recommendation. In this paper, we firstly analyze recent research on mobile based collaboration and annotation projects, and then we introduce our efforts in expanding a collaborative annotation framework to the mobile platforms, especially the android-enabled devices. A prototype of the mobile extension that supports collaborative annotation on real time data streams especially audiovisual streams is introduced as well as several preliminary performance experiments.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121222544","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}
S. Okamoto, R. Hoang, S. Dascalu, F. Harris, N. Belkhatir
{"title":"SUNPRISM: An approach and software tools for collaborative climate change research","authors":"S. Okamoto, R. Hoang, S. Dascalu, F. Harris, N. Belkhatir","doi":"10.1109/CTS.2012.6261109","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261109","url":null,"abstract":"In order to simulate scientific models in various conditions climate change research involves using large sets of heterogeneous data. In many cases, for model interoperability a dataset from a given model or source needs to be transformed into a different data format required by a subsequent model or processor. This paper presents the SUNPRISM approach and software tools aimed at supporting collaborative scientific exploration via new capabilities for combining data transformations, model simulations, and output visualizations in application scenarios developed for climate change research. The SUNPRISM framework's defining characteristics are a visual object-based interface for scenario configuration, a workflow-based environment that allows code generation and dataflow scenario execution, and data visualization capabilities for 3D environments, including for immersive virtual environments such as CAVE. The paper describes the proposed approach and its supporting tools, the SUNPRISM Scenario Manager and the SUNPRISM Visualizer, and illustrates them on an application scenario in which data from the National Digital Forecast Database is retrieved and visualized in 3D. A brief comparison with related work and an outline of directions for future work are also included in the paper.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114617553","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}
{"title":"Method for privacy-protecting display and exchange of emergency information on Mobile devices","authors":"Salvador Aguiñaga, C. Poellabauer","doi":"10.1109/CTS.2012.6261111","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261111","url":null,"abstract":"First responders and emergency care providers make life or death decisions with little to no information about patient's medical problems. Access to a person's medical record could greatly improve the medical care they receive. Challenges to proving this information include finding the correct platform and protecting the patient's privacy. Current solutions are lacking in both these areas. Here we propose leveraging smartphone sensor and matrix barcode technology to allow users to securely encode sensitive information using the widely accepted Quick Response code standard. Placing this code on the phone's lock-screen removes the need to unlock the phone and search for it. Our solution lets users decode information, automatically notify authorized contacts of the nature of the emergency, and location where the patient is being cared for. Future research work will explore utilizing near field communication interfaces to augment the app's features for ease of use.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128648851","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}
{"title":"APSAT: A framework for modeling and analysis of workflow dynamics in mission-centric systems","authors":"John M. Pecarina, Jyh-Charn S. Liu","doi":"10.1109/CTS.2012.6261108","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261108","url":null,"abstract":"In this paper, we propose a flexible framework to accomplish workflow modeling from network traffic, the Access Profile Statistical Analysis Tool (APSAT). In APSAT, workflow modeling is decomposed into four layers: packet flows, Resource Access Actions (RAA), workflow periods, and workflow behavior. We develop a novel approach to compress packet flows into expressive human actions using our Behavior Description Grammar (BDG). We illustrate a new algorithm to detect workflow shifts, where human action streams statistically deviate from an observed pattern of usage. One can infer semantics from workflow periods, the intervals between workflow shifts, and identify these shifts as a possible indicator of group actions. For its evaluation, a prototype of APSAT monitors file access from a series of scripted workflow simulations. It is found that a strong relationship exists between workflows and workflow-driven file access patterns.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129747009","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}
{"title":"“Good enough” pointing in pervasive computing","authors":"Joon-Suk Lee, D. Tatar","doi":"10.1109/CTS.2012.6261071","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261071","url":null,"abstract":"Opportunities are growing to engage in highly coordinated activities for multiple users with multiple screens. A great deal of research has explored how to support deictic reference in computer-mediated conversation, leading to what appears to be a general consensus among system builders in favor of a multi-mouse approach. While the multi-mouse provides an application-independent, context-free deictic reference solution, not only is it typically more costly to build, but also the usability of the tool regressively deteriorates as the number of users gets larger. Alternatives to the multi-mouse are application-specific, context-laden pointing mechanisms. Different research showed that the context-specific pointing conveys more information than a mere arrow. Yet, the context-free, multi-mouse pointing mechanism is generally taken as the panacean deixis solution in the groupware. Moreover, there have not been enough studies investigating tailorability or appropriatability of those different approaches. The needs for theories about when people profit from different kinds of support for pointing are current and large. We studied groups engaged in a highly coordinated, co-located task. We studied groups of three and used systems in which deictic reference could be achieved by a number of mechanisms. Our analysis shows that people chose pointing techniques that minimized the effort of communication; however, as the reference task became more complex, they employed more complex tools. Explicit support for pointing is desirable to support complex reference tasks, but not all pointing mechanisms match all cases. Different tools entail different deictic behaviors.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129983631","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}
{"title":"Collaborative single and parallel machine scheduling by autonomous agents","authors":"Fabian Lang, Andreas Fink","doi":"10.1109/CTS.2012.6261031","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261031","url":null,"abstract":"Collaborative interorganizational systems is a relevant and promising research domain. When autonomous agents associated with different enterprises negotiate about rival resources, coordination is a major challenge. Information provided by the agents is a fruit of a poisonous tree because the selfish agents have an incentive to lie strategically which makes the revealed information unreliable and misleading for a central authority. Moreover, the agents might not be willing to reveal information due to privacy concerns. Thus, there is a need for sophisticated mechanisms in collaborative systems that facilitate the coordination of non-cooperative agents. This paper deals with rival machine scheduling of one or more homogeneous machines by autonomous agents. Overall objectives are the minimization of the collective total weighted tardiness and Pareto efficient outcomes. We have developed a mediated negotiation protocol drawing on quotas for the acceptance of contract proposals. The protocol ensures that the agents accept sufficient proposals such that they can overcome individual local optima and achieve Pareto superior outcomes. For evaluation purposes, we have conducted several computational experiments. The experiments show that the proposed protocol achieves beneficial outcomes.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125065580","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}
{"title":"Sentence-level Arabic sentiment analysis","authors":"A. Shoukry, Ahmed Rafea","doi":"10.1109/CTS.2012.6261103","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261103","url":null,"abstract":"Arabic sentiment analysis research existing currently is very limited. While sentiment analysis has many applications in English, the Arabic language is still recognizing its early steps in this field. In this paper, we show an application on Arabic sentiment analysis by implementing a sentiment classification for Arabic tweets. The retrieved tweets are analyzed to provide their sentiments polarity (positive, or negative). Since, this data is collected from the social network Twitter; it has its importance for the Middle East region, which mostly speaks Arabic.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121636319","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}
A. D. Giusti, F. E. Frati, Mariano Sanchez, Laura C. De Giusti
{"title":"LIDI Multi Robot Environment: Support software for concurrency learning in CS1","authors":"A. D. Giusti, F. E. Frati, Mariano Sanchez, Laura C. De Giusti","doi":"10.1109/CTS.2012.6261065","DOIUrl":"https://doi.org/10.1109/CTS.2012.6261065","url":null,"abstract":"An interactive visual environment for teaching the concepts of concurrence and parallelism in an introductory course to algorithms is presented. The Lidi MultiRobot Environment (LMRE) is an evolution of the Visual Da Vinci environment that is extensively used in the introductory course to programming in several universities in Argentina.","PeriodicalId":200122,"journal":{"name":"2012 International Conference on Collaboration Technologies and Systems (CTS)","volume":"193 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116420351","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}