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» Document Retrieval using a Probabilistic Knowledge Model
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IUI
2010
ACM
15 years 6 months ago
Facilitating exploratory search by model-based navigational cues
We present an extension of a computational cognitive model of social tagging and exploratory search called the semantic imitation model. The model assumes a probabilistic represen...
Wai-Tat Fu, Thomas George Kannampallil, Ruogu Kang
PODS
2005
ACM
119views Database» more  PODS 2005»
15 years 10 months ago
Security analysis of cryptographically controlled access to XML documents
Some promising recent schemes for XML access control employ encryption for implementing security policies on published data, avoiding data duplication. In this paper we study one ...
Bogdan Warinschi, Martín Abadi
URBAN
2011
185views more  URBAN 2011»
14 years 4 months ago
Supporting geographically-aware web document foraging and sensemaking
This paper reports on the development and application of strategies and tools for geographic information seeking and knowledge building that leverages unstructured text resources ...
Brian M. Tomaszewski, Justine Blanford, Kevin Ross...
ML
2000
ACM
124views Machine Learning» more  ML 2000»
14 years 9 months ago
Text Classification from Labeled and Unlabeled Documents using EM
This paper shows that the accuracy of learned text classifiers can be improved by augmenting a small number of labeled training documents with a large pool of unlabeled documents. ...
Kamal Nigam, Andrew McCallum, Sebastian Thrun, Tom...
SDM
2009
SIAM
208views Data Mining» more  SDM 2009»
15 years 7 months ago
Topic Evolution in a Stream of Documents.
Document collections evolve over time, new topics emerge and old ones decline. At the same time, the terminology evolves as well. Much literature is devoted to topic evolution in ...
Alexander Hinneburg, Andrè Gohr, Myra Spili...