Wikipedia has been accused of being biased against challengers to scientific orthodoxy due efforts by editors having affinities with the Skeptics movement. Examination Wikipedia, including entries on fluoridation, origin AIDS and vaccination, reveals several characteristics typical a sensibility, definition scepticism, lists deviant ideas, derogatory labelling heterodox viewpoints, categories e...

The Wikipedia is the largest online collaborative knowledge sharing system, a free encyclopedia. Built upon traditional wiki architectures, its search capabilities are limited to title and full-text search. We suggest that semantic information can be extracted from Wikipedia by analyzing the links between categories. The results can be used for building a semantic schema for Wikipedia which cou...

The quality and quantity of articles in each Wikipedia language varies greatly. Translating from another Wikipedia is a natural way to add more content, but the translation process is not properly supported in the software used by Wikipedia. Past computer-assisted translation tools built for Wikipedia are not commonly used. We created a tool that adapts to the specific needs of an open communit...

Wikipedia is one of the most popular sites on the Web, with millions of users relying on it to satisfy a broad range of information needs every day. Although it is crucial to understand what exactly these needs are in order to be able to meet them, little is currently known about why users visit Wikipedia. The goal of this paper is to fill this gap by combining a survey of Wikipedia readers wit...

The online resource Wikipedia is increasingly used by students for knowledge acquisition and learning. However, the lack of a formal editorial review and the heterogeneous expertise of contributors often results in skepticism by educators whether Wikipedia should be recommended to students as an information source. In this study we systematically analyzed the accuracy and completeness of drug i...

Wikipedia, a collaborative Wiki-based encyclopedia, has become a huge phenomenon among Internet users. It covers a huge number of concepts of various fields such as Arts, Geography, History, Science, Sports and Games. As a corpus for knowledge extraction, Wikipedia’s impressive characteristics are not limited to the scale, but also include the dense link structure, word sense disambiguation bas...

While Wikipedia is a subject of great interest in the computing literature, very little work has considered Wikipedia’s important relationships with other information technologies like search engines. In this paper, we report the results of two deception studies whose goal was to better understand the critical relationship between Wikipedia and Google. These studies silently removed Wikipedia c...

Wikipedia articles are annotated by volunteer contributors with numerous links that connect words and phrases to relevant titles in Wikipedia. In this paper, we identify inconsistencies in the user annotation of links and show that they can have a substantial impact on the performance of word sense disambiguation systems that are trained on Wikipedia links. We describe two major types of link a...

BACKGROUND Wikipedia, the world's largest and most popular encyclopedia is an indispensable source of chemistry information. It contains among others also entries for over 15,000 chemicals including metabolites, drugs, agrochemicals and industrial chemicals. To provide an easy access to this wealth of information we decided to develop a substructure and similarity search tool for chemical struc...

Cyberspace has introduced new and intriguing means for knowledge sharing as well as new structures of mediated knowledge-building communities. Considering the various forms of online communities, it should be difficult to overstate the significance of Wikipedia as a landmark in building communal knowledge repositories. Wikipedia is an online collaboratively written encyclopedia. It has unique a...