258 search results - page 3 / 52 » Hierarchical Concept Description and Learning for Informatio... |
IJCAI
2003
13 years 6 months ago
2003
Information extraction can be defined as the task of automatically extracting instances of specified classes or relations from text. We consider the case of using machine learni...
ECIR
1998
Springer
13 years 6 months ago
1998
Springer
We present in this paper a combination of Machine Learning based Information Retrieval (IR) techniques and stochastic language modelling in a hierarchical system that extracts sur...
SIGIR
2003
ACM
13 years 10 months ago
2003
ACM
Term-based representations of documents have found widespread use in information retrieval. However, one of the main shortcomings of such methods is that they largely disregard le...
ICMCS
2005
IEEE
13 years 11 months ago
2005
IEEE
For large scale automatic semantic video characterization, it is necessary to learn and model a large number of semantic concepts. A major obstacle to this is the insufficiency o...
WSDM
2012
ACM
12 years 27 days ago
2012
ACM
We describe a open-domain information extraction method for extracting concept-instance pairs from an HTML corpus. Most earlier approaches to this problem rely on combining cluste...