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  Semiotisches Dreieck

  Views: 254 Average Rating:

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  Added by rostanin on 2008-01-21 14:19:25
  
  
  
  Semiotisches Dreieck
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    Stets zu Diensten? Qualität von Telekom-Diensten aus Nutzersicht

  Views: 946 Average Rating:

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  Added by Martin on 2008-01-21 10:54:42
  
  
  
  Stets zu Diensten? Qualität von Telekom-Diensten aus Nutzersicht CeBIT Future Talks 2007 Sebastian Möller, Alexander Raake Attribution-NonCommercial-ShareAlike License (CC BY-NC-SA)
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  Tag-Cloud Drawing: Algorithms for Cloud Visualization

  Views: 621 Average Rating:

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  Added by Rafael on 2008-01-20 13:30:41
  
  
  
  Tag-Cloud Drawing: Algorithms for Cloud Visualization Tag clouds provide an aggregate of tag-usage statistics. They are typically sent as in-line HTML to browsers. However, display mechanisms suited for ordinary text are not ideal for tags, because font sizes may vary widely on a line. As well, the typical layout does not account for relationships that may be known between tags. This paper presents models and algorithms to improve the display of tag clouds that con- sist of in-line HTML, as well as algorithms that use nested tables to achieve a more general 2-dimensional layout in which tag relationships are considered. The first algorithms leverage prior work in typesetting and rectangle packing, whereas the second group of algorithms leverage prior work in Electronic Design Automation. Experiments show our algorithms can be efficiently implemented and perform well. Owen Kaser, Daniel Lemire
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  Improved Annotation of the Blogosphere via Autotagging and Hierarchical Clustering

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  Added by Rafael on 2008-01-13 11:26:11
  
  
  
  Improved Annotation of the Blogosphere via Autotagging and Hierarchical Clustering Tags have recently become popular as a means of annotating and organizing Web pages and blog entries. Advocates of tagging argue that the use of tags produces a 'folksonomy', a system in which the meaning of a tag is determined by its use among the community as a whole. We analyze the effectiveness of tags for classifying blog entries by gathering the top 350 tags from Technorati and measuring the similarity of all articles that share a tag. We find that tags are useful for grouping articles into broad categories, but less effective in indicating the particular content of an article. We then show that automatically extracting words deemed to be highly relevant can produce a more focused categorization of articles. We also show that clustering algorithms can be used to reconstruct a topical hierarchy among tags, and suggest that these approaches may be used to address some of the weaknesses in current tagging systems. Christopher H. Brooks, Nancy Montanez
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  The Structure of Collaborative Tagging Systems

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  Added by Maschino on 2008-01-09 18:40:12
  
  
  
  The Structure of Collaborative Tagging Systems Collaborative tagging describes the process by which many users add metadata in the form of keywords to shared content. Recently, collaborative tagging has grown in popularity on the web, on sites that allow users to tag bookmarks, photographs and other content. In this paper we analyze the structure of collaborative tagging systems as well as their dynamical aspects. Specifically, we discovered regularities in user activity, tag frequencies, kinds of tags used, bursts of popularity in bookmarking and a remarkable stability in the relative proportions of tags within a given url. We also present a dynamical model of collaborative tagging that predicts these stable patterns and relates them to imitation and shared knowledge. Scott A. Golder and Bernardo A. Huberman
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  Improving Tag-Clouds as Visual Information Retrieval Interfaces

  Views: 836 Average Rating:

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  Added by Maschino on 2008-01-09 14:38:39
  
  
  
  Improving Tag-Clouds as Visual Information Retrieval Interfaces Tagging-based systems enable users to categorize web resources by means of tags (freely chosen keywords), in order to re-finding these resources later. Tagging is implicitly also a social indexing process, since users share their tags and resources, constructing a social tag index, so-called folksonomy. At the same time of tagging-based system, has been popularised an interface model for visual information retrieval known as Tag-Cloud. In this model, the most frequently used tags are displayed in alphabetical order. This paper presents a novel approach to Tag-Cloud’s tags selection, and proposes the use of clustering algorithms for visual layout, with the aim of improve browsing experience. The results suggest that presented approach reduces the semantic density of tag set, and improves the visual consistency of Tag-Cloud layout.
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  welcome 2008

  Views: 391 Average Rating:

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  Added by lutzland on 2008-01-08 23:21:34
  
  
  
  welcome 2008 gesucht, gefunden!
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  Automated Tag Clustering: Improving search and exploration in the tag space

  Views: 745 Average Rating:

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  Added by Maschino on 2008-01-08 18:57:17
  
  
  
  Automated Tag Clustering: Improving search and exploration in the tag space Grigor Begelman, Philipp Keller, Frank Smadja
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  Social Bookmarking Tools (I) A General Review

  Views: 667 Average Rating:

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  Added by Maschino on 2008-01-06 12:30:25
  
  
  
  Social Bookmarking Tools (I) A General Review Tony Hammond, Timo Hannay, Ben Lund, and Joanna Scott
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  Google Developer Podcast

  Views: 661 Average Rating:

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  Added by Matthias on 2008-01-02 14:47:59
  
  
  
  Google Developer Podcast The Google Developer Podcast features interesting news in the developer world from a Google perspective. Listen to interviews with Google Developers and the community as a whole. Dion Almaer