11538 search results - page 374 / 2308 » From Text to Knowledge |
188
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KDD
2009
ACM
16 years 7 months ago
2009
ACM
One common predictive modeling challenge occurs in text mining problems is that the training data and the operational (testing) data are drawn from different underlying distributi...
178
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SIGIR
2006
ACM
16 years 22 days ago
2006
ACM
This paper studies the problem of identifying comparative sentences in text documents. The problem is related to but quite different from sentiment/opinion sentence identification...
203
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SAC
2003
ACM
16 years 17 hour ago
2003
ACM
The construction of a text classifier usually involves (i) a phase of term selection, in which the most relevant terms for the classification task are identified, (ii) a phase ...
194
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APWEB
2009
Springer
15 years 10 months ago
2009
Springer
We present a new method to evaluate a search ontology, which relies on mapping ontology instances to textual documents. On the basis of this mapping, we evaluate the adequacy of on...
210
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SAC
2008
ACM
15 years 6 months ago
2008
ACM
A major obstacle that decreases the performance of text classifiers is the extremely high dimensionality of text data. To reduce the dimension, a number of approaches based on rou...