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NAACL
2007
15 years 7 months ago
Data-Driven Graph Construction for Semi-Supervised Graph-Based Learning in NLP
Graph-based semi-supervised learning has recently emerged as a promising approach to data-sparse learning problems in natural language processing. All graph-based algorithms rely ...
Andrei Alexandrescu, Katrin Kirchhoff
IJCAI
2001
15 years 7 months ago
Acquiring Conceptual Relationships from Domain-Specific Texts
Here is discussed how to construct domain ontologies with both taxonomic and non-taxonomic conceptual relationships, exploiting a machinereadable dictionary (MRD) and domain-speci...
Takahira Yamaguchi
DEXA
2007
Springer
131views Database» more  DEXA 2007»
16 years 15 days ago
Improving Semantic Query Answering
The retrieval problem is one of the main reasoning tasks for knowledge base systems. Given a knowledge base K and a concept C, the retrieval problem consists of finding all indivi...
Norbert Kottmann, Thomas Studer
CICLING
2001
Springer
15 years 10 months ago
Spatio-temporal Indexing in Database Semantics
In logic, the spatio-temporal location of a proposition is characterized precisely within a Cartesian system of space and time coordinates. This is suitable for characterizing the ...
Roland Hausser
WWW
2002
ACM
15 years 6 months ago
A Query Language for XML Based on Graph Grammars
In this paper we present a graphical query language for XML. The language, based on a simple form of graph grammars, permits us to extract data and reorganize information in a new...
Sergio Flesca, Filippo Furfaro, Sergio Greco