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posted to test
by aarontaycheehsien
on 2009-08-14 17:20:49
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(May 2008)
Abstract
We consider the problem of measuring user contributions to versioned, collaborative bodies of information, such as wikis. Measuring the contributions of individual authors can be used to divide revenue, to recognize merit, to award status promotions, and to choose the order of authors when citing the content. In the context of the Wikipedia, previous works on author contribution estimation have focused on two criteria: the total text created, and the total number of edits performed. We show that neither of these ...
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(May 2008)
Abstract
The Wikipedia is a collaborative encyclopedia: anyone can contribute to its articles simply by clicking on an edit button. The open nature of the Wikipedia has been key to its success, but has also created a challenge: how can readers develop an informed opinion on its reliability? We propose a system that computes quantitative values of trust for the text in Wikipedia articles; these trust values provide an indication of text reliability. The system uses as input the revision history of ...
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(May 2008)
Abstract
In content-driven reputation systems for collaborative content, users gain or lose reputation according to how their contributions fare: authors of long-lived contributions gain reputation, while authors of reverted contributions lose reputation. Existing content-driven systems are prone to Sybil attacks, in which multiple identities, controlled by the same person, perform coordinated actions to increase their reputation. We show that content-driven reputation systems can be made resistent to such attacks by taking advantage of the fact that the reputation increments and decrements depend ...
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Teaching of Psychology, Vol. 35, No. 2. (April 2008), pp. 81-85
posted to quality wikipedia
by aarontaycheehsien
on 2008-05-14 04:32:04
Abstract
he online encyclopedia Wikipedia is a frequently referred-to source of information for Internet users. A series of 3 studies examined Wikipedia's coverage of psychology-related concepts, examined how accessible Wikipedia's psychology content is when using Internet search engines, and described how both first-year and senior undergraduates use Wikipedia. The results demonstrated that Wikipedia's coverage of psychological topics was comprehensive and prominently displayed on the major search engines. In addition, a majority of undergraduate students reported referring to Wikipedia for both personal and ...
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Abstract
Wikipedia 1 is a very large and successful Web 2.0 example. As the number of Wikipedia articles and contributors grows at a very fast pace, there are also increasing disputes occurring among the contributors. Disputes often happen in articles with controversial content. They also occur frequently among contributors who are "aggressive" or controversial in their personalities. In this paper, we aim to identify controversial articles in Wikipedia. We propose three models, namely the Basic model and two Controversy Rank (CR) models. ...
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First Monday, Vol. 13, No. 4. (2008)
Abstract
To manage information quality (IQ) effectively, one needs to know how IQ changes over time, what causes it to change, and whether the changes can be predicted. In this paper we analyze the structure of IQ change in Wikipedia, an open, collaborative general encyclopedia. We found several patterns in Wikipedia’s IQ process trajectories and linked them to article types. Drawing on the results of our analysis, we develop a general model of IQ change that can be used for reasoning about ...
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Journal of the American Society of Information Science and Technology, Vol. 59, No. 6. (2008)
Abstract
The classic problem within the information quality (IQ) research and practice community has been the problem of defining IQ. It has been found repeatedly that IQ is context sensitive and cannot be described, measured, and assured with a single model. There is a need for empirical case studies of IQ work in different systems to develop a systematic knowledge that can then inform and guide the construction of context-specific IQ models. This article analyzes the organization of IQ assurance work in ...
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(2006)
Abstract
Still-nascent as an Internet phenomenon, blogs have paved the way for the resurrection of the world’s oldest form of marketing: word-of-mouth. Firms are realizing that including promotional messages in the blog content itself may be an effective way to market their products, in addition to banner ads on blogsites. Do firms have the option to buy out blogger support? Do bloggers have the incentive to mislead their audiences in response to sponsorship offers? Should blog readers continue to believe bloggers, even when they face uncertainty or deception? ...
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Abstract
The rise of the Internet has enabled collaboration and cooperation on anunprecedentedly large scale. The online encyclopedia Wikipedia, which presently comprises 7.2 million articles created by 7.04 million distinct editors, provides a consummate example. We examined all 50 million edits made tothe 1.5 million English-language Wikipedia articles and found that the high-quality articles are distinguished by a marked increase in number of edits, number of editors, and intensity of cooperative behavior, as compared to other articles of similar visibility and age. ...
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In Online Communities and Social Computing. Proceedings Second International Conference, OCSC 2007. Held as Part of HCI International 2007, 2007, (2007)
Abstract
Online communities have something in common: their success rise and fall with the participation rate of active users. In this paper we focus on social rewarding mechanisms that generate benefits for users in order to achieve a higher contribution rate in a wiki system. In an online community, social rewarding is in the majority of cases based on accentuation of the most active members. As money cannot be used as a motivating factor others like status, power, acceptance, and glory have ...
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Abstract
Many have questioned the reliability and accuracy of Wikipedia. Here a different issue, but one closely related: how broad is the coverage of Wikipedia? Differences in the interests and attention of Wikipedia’s editors mean that some areas, in the traditional sciences, for example, are better covered than others. Two approaches to measuring this coverage are presented. The first maps the distribution of topics on Wikipedia to the distribution of books published. The second compares the distribution of topics in three established, ...
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In Demo Session at the ESWC 2005 (May 2005)
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Abstract
Wikipedia, a killer application in Web 2.0, has embraced the power of collaborative editing to harness collective intelligence. It can also serve as an ideal Semantic Web data source due to its abundance, influence, high quality and well-structuring. However, the heavy burden of up-building and maintaining such an enormous and ever-growing online encyclopedic knowledge base still rests on a very small group of people. Many casual users may still feel difficulties in writing high quality Wikipedia articles. In this paper, we ...
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Vol. 11, No. 11. (November 2006)
Abstract
Wikipedia is an free, online encyclopaedia; anyone can add content or edit existing content. The idea behind Wikipedia is that members of the general public can add their own personal knowledge, anonymously if they wish. Wikipedia then evolves over time into a comprehensive knowledge base on all things. Its popularity has never been questioned, although some have speculated about its authority. By its own admission, Wikipedia contains errors. A number of people have tested Wikipedia’s accuracy using destructive methods, i.e. deliberately ...
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Abstract
This paper presents a simple approach to the Wikipedia Question Answering pilot task in CLEF 2006. The approach ranks the snippets, retrieved using the Lucene search engine, by means of a similarity measure based on bags of words extracted from both the snippets and the articles in wikipedia. Our participation was in the monolingual English and Spanish tasks. We obtained the best results in the Spanish one. ...
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Abstract
We describe an approach taken for automatically associating entries from an on-line encyclopedia with concepts in an ontology or a lexical semantic network. It has been tested with the Simple English Wikipedia and WordNet, although it can be used with other resources. The accuracy in disambiguating the sense of the encyclopedia entries reaches 91.11% (83.89% for polysemous words). It will be applied to enriching ontologies with encyclopedic knowledge. ...
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In eighth International Conference General Online Research (GOR06) (2006)
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In Cyberculture 3rd Global Conference. Prague, Czech Republic
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Visual Analytics Science and Technology, 2007. VAST 2007. IEEE Symposium on In Visual Analytics Science and Technology, 2007. VAST 2007. IEEE Symposium on (October 2007), pp. 163-170, doi:10.1109/vast.2007.4389010
Abstract
Wikipedia is a wiki-based encyclopedia that has become one of the most popular collaborative on-line knowledge systems. As in any large collaborative system, as Wikipedia has grown, conflicts and coordination costs have increased dramatically. Visual analytic tools provide a mechanism for addressing these issues by enabling users to more quickly and effectively make sense of the status of a collaborative environment. In this paper we describe a model for identifying patterns of conflicts in Wikipedia articles. The model relies on users' ...
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In Proceedings of Wikimania 2005—The First International Wikimedia Conference
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(2001)
Abstract
this paper examines these relationships in more detail, and asks whether contributions, perceived benefits, and the relationships among them were different for owners of the lists (formal leaders), active posters, and lurkers of the groups, and for nonwork-related and work related groups. To test our hypotheses, we conducted repeated measures ANOVAs with respondent role (owner or other member) and group type (non-work or work-related) as fixed effects, and group size and content volume as... ...
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(2005)
Abstract
We examine the Information Quality aspects of Wikipedia. By a study of the discussion pages and other process-oriented pages within the Wikip edia project, it is possible to determine the information quality dimensions that participants in the editing process care about, how they talk about them, what tradeoffs they make between these dimensions and how the quality assessment and improvement process operates. This analysis helps in understanding how high quality is maintained in a project where anyone may participate with no prior vetting. It also carries ...
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In International Conference of the International Society for Scientometrics and Informetrics : 10th (24-28 July 2005)
Abstract
Wikipedia, an international project that uses Wiki software to collaboratively create an encyclopaedia, is becoming more and more popular. Everyone can directly edit articles and every edit is recorded. The version history of all articles is freely available and allows a multitude of examinations. This paper gives an overview on Wikipedia research. Wikipedia’s fundamental components, i.e. articles, authors, edits, and links, as well as content and quality are analysed. Possibilities of research are explored including examples and first results. Several characteristics that ...
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In Proceedings of the International Conference on Information Quality - ICIQ 2005 (2005), pp. 442-454
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(2004)
posted to wikipedia
by aarontaycheehsien
on 2008-02-10 13:00:07
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posted to quality wikipedia
by aarontaycheehsien
on 2008-02-10 12:55:46
Abstract
This paper is a presentation of a doctoral research in progress focused on a new genre: online encyclopaedias. The introduction to Wikipedia and Encyclopaedia Britannica Online will be followed by a presentation of wiki as a new textual genre. Wikipedia analysis will focus firstly on the investigation of the “WikiLanguage”, the language used in official encyclopaedic articles. Secondly, the “WikiSpeak”, the spoken-written language used by Wikipedians in their backstage and informal community, will be taken into account. The initial findings of this research seem to suggest that, the language of the Wikipedia’s coauthored articles is formal and standardized in a ...
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(2006)
posted to quality wikipedia
by aarontaycheehsien
on 2008-02-10 12:46:20
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(October 2006)
posted to plagiarism wikipedia
by aarontaycheehsien
on 2008-02-10 12:43:36
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posted to motivation wikipedia
by aarontaycheehsien
on 2008-02-10 12:39:49
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(2005)
Abstract
Wikipedia has increasingly become an important portal for knowledge accumulation and dispersion. Many of its contributors (aka Wikipedians), however, were like the batmen in this project – Wikipedia has shown their trace of visits but they still remain rather invisible. This paper, thus, aims to serve two purposes to help us understand the Wikipedians systematically: (1) to capture a random sample of 100 user pages of the Wikipedians, and (2) to create a scale that systematically measures the extent to which ...
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posted to quality wikipedia
by aarontaycheehsien
on 2008-02-10 12:07:45
Abstract
The “reliability” and “credibility” of the freely-editable Wikipedia are issues of popular interest and concern. Much of Wikipedia’s recent media attention has been the result of errors of commission, where factually inaccurate information has been deliberately placed in articles, or relevant information was deleted from articles. Wikipedia’s open and distributed editorial structure may serve to ameliorate this type of error, but introduces the potential for a second type or error: errors of omission. While some topics, such as the fictional Harry ...
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Abstract
In this paper, we present a framework for clustering Web search engine queries whose aim is to identify groups of queries used to search for similar information on the Web. The framework is based on a novel term vector model of queries that integrates user selections and the content of selected documents extracted from the logs of a search engine. The query representation obtained allows us to treat query clustering similarly to standard document clustering. We study the application of the ...
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Intercultural Communication Studies, Vol. XV, No. 2. (2006)
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In Fall 2005 Innovation & Enterpreneurship Seminar at MIT
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First Monday,, Vol. 11, No. 9. (September 2006)
Abstract
The reliability of information collected from at large Internet users by open collaborative wikis such as Wikipedia has been a subject of widespread debate. This paper provides a practical proposal for improving user confidence in wiki information by coloring the text of a wiki article based on the venerability of the text. This proposal relies on the philosophy that bad information is less likely to survive a collaborative editing process over large numbers of edits. Colorization would provide users with a ...
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First Monday, Vol. 8, No. 12. (1 December 2003)
Abstract
Phantom authority, self–selective recruitment and retention of members in virtual communities: The case of Wikipedia by Andrea Ciffolilli Virtual communities constitute a building block of the information society. These organizations appear capable to guarantee unique outcomes in voluntary association since they cancel physical distance and ease the process of searching for like–minded individuals. In particular, open source communities, devoted to the collective production of public goods, show efficiency properties far superior to the traditional institutional solutions to the public goods issue (e.g. property ...
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Abstract
We examine the procedural side of Wikipedia, the well-known internet encyclopedia. Despite the lack of structure in the underlying wiki technology, users abide by hundreds of rules and follow well-defined processes. Our case study is the Featured Article (FA) process, one of the best established procedures on the site. We analyze the FA process through the theoretical framework of commons governance, and demonstrate how this process blends elements of traditional workflow with peer production. We conclude that rather than encouraging anarchy, ...
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In Proceedings of Hawaiian International Conference of Systems Sciences (January 2007)
Abstract
The name “Wikipedia” has been associated with terms such as collaboration, volunteers, reliability, vandalism, and edit-war. Fewer people might think of “images,” “maps,” “diagrams,” “illustrations” in this context. This paper presents the burgeoning but underexplored visual side of the online encyclopedia. A survey conducted with image contributors to Wikipedia reveals key differences in collaborating around images as opposed to text. The results suggest that, even though image editing is a more isolated activity, somewhat shielded from vandalism, the sense of community is an important motivation for image contributors. By examining how ...
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Abstract
The purpose of this paper is to present an approach to evaluating contributions in collaborative authoring environments, and in particular, Wikis using social network measures. ...
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Proceedings of Wikimania (2005)
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In WI '06: Proceedings of the 2006 IEEE/WIC/ACM International Conference on Web Intelligence (2006), pp. 45-51, doi:10.1109/wi.2006.164
Abstract
Wikipedia (www.wikipedia.org) is an online encyclopedia, available in more than 100 languages and comprising over 1 million articles in its English version. If we consider each Wikipedia article as a node and each hyperlink between articles as an arc we have a “Wikigraph”, a graph that represents the link structure of Wikipedia. The Wikigraph differs from other Web graphs studied in the literature by the fact that there are timestamps associated with each node. The timestamps indicate the creation and update ...
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Social Science Research Network Working Paper Series (8 December 2006)
Abstract
Keywords: Wikipedia, Wisdom of the Crowds, Collective Intelligence, information quality ...
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Abstract
Revision history of a wiki page is traditionally maintained as a linear chronological sequence. We propose to represent revision history as a tree of versions. Every edge in the tree is given a weight, called adoption coefficient , indicating similarity between the two corresponding page versions. The same coefficients are used to build the tree. In the implementation described, adoption coefficients are derived from comparing texts of the versions, similarly to computing edit distance. The tree structure reflects actual evolution ...
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(2006)
Abstract
A new model of distributed, collaborative information evolution is emerging. As exemplified in Wikipedia, online collaborative information repositories are being generated, updated, and maintained by a large and diverse community of users. Issues concerning trust arise when content is generated and updated by diverse populations. Since these information repositories are constantly under revision, trust determination is not simply a static process. In this paper, we explore ways of utilizing the revision history of an article to assess the trustworthiness of the ...
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In Proceedings of the 25th Annual ACM Conference on Human Factors in Computing Systems (CHI 2007) (28 April 2007)
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Abstract
Online communities need regular maintenance activities such as moderation and data input, tasks that typically fall to community owners. Communities that allow all members to participate in maintenance tasks have the potential to be more robust and valuable. A key challenge in creating member-maintained communities is building interfaces, algorithms, and social structures that encourage people to provide high-quality contributions. We use Karau and Williams' collective effort model to predict how peer and expert editorial oversight affect members' contributions to a movie ...
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