The World Wide Web is an immense source of data that can come either from the Web content, represented by the billions of pages publicly available, or from the Web usage, represented by the log information daily collected by all the servers around the world. Web Mining [1] is that area of Data Mining which deals with the extraction of interesting knowledge from the World Wide Web. More precisel...

This paper proposes a new algorithm of associated topic extraction, which detects related topics in a collection of blog entries commenting on a specified topic. The main feature of the algorithm is to evaluate how important a topic is to the collection, according to the popularity of blog entries through Trackbacks and comments. Another feature is to utilize product ontology for excluding unre...

In this paper, we are considering weblogs focusing on medicine and health. Given this general topic, posts can deal with diseases, medical treatments, medications and the like to which in turn different aspects can be considered. Within a diversity-aware medical search engine knowledge about this kind of diversity can support grouping of search results into diversity dimensions covered by a tex...

Blogs are one of the most prominent means of communication on the web. Their content, interconnections and influence constitute a unique socio-technical artefact of our times which needs to be preserved. The BlogForever project has established best practices and developed an innovative system to harvest, preserve, manage and reuse blog content. This paper presents the latest developments of the...

In this paper we present a focused audio crawler that mines audio weblogs (MP3 blogs). This source of semi-structured information contains links to audio files, plus some textual information that is referring to the media file. A retrieval system —that exploits the mined data— fetches relevant audio files related to user’s text query. Based on these results, the user can navigate and discover n...

The term knowledge work has been used for decades, but to date there is not much understanding what knowledge workers do and how this work can be improved. This paper contributes to the development of our theoretical understanding of knowledge work by exploring use of weblogs for professional purposes: as personal knowledge repositories, learning journals or networking instruments. We draw on t...

Nach einer kurzen Erläuterung des Weblog-Konzepts werden Nutzungsszenarien von Weblogs und Teamlogs zur Unterstützung des persönlichen Wissensmanagements und zur Förderung von Communities of Practice erläutert. Darauf aufbauend beschreibt das Papier die Integration von Weblog-Funktionen in eine betriebliche Standardsoftware zum Wissensmanagement und diskutiert die dabei entstehenden interessant...