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Metadata Extraction: Human Language technology and the Semantic Web
Published on Feb 25, 20074775 Views
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Chapter list
Human Language Technology for the Semantic Web00:03
Are you wasting your time?01:01
Structure of the Tutorial 02:12
The Knowledge Economy and Human Language03:06
HLT & Knowledge: Closing the Language Loop04:01
Background and Examples (1)05:09
Background and Examples (2)07:23
Structure of the Tutorial 08:11
Information Extraction (1)08:16
Information Extraction (2)10:09
MUC-7 tasks11:46
An Example12:54
Performance levels15:12
What are Named Entities?17:15
What are NOT NEs (MUC-7)18:10
Basic Problems in NE18:45
More complex problems in NE19:29
Structure of the Tutorial 20:03
Corpora and System Development20:18
Some NE Annotated Corpora21:49
The MUC-7 corpus23:02
The MUC-7 Corpus (2)24:09
ACE – Towards Semantic Tagging of Entities24:35
ACE Example26:18