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ACL
2006
13 years 9 months ago
Semi-Supervised Conditional Random Fields for Improved Sequence Segmentation and Labeling
We present a new semi-supervised training procedure for conditional random fields (CRFs) that can be used to train sequence segmentors and labelers from a combination of labeled a...
Feng Jiao, Shaojun Wang, Chi-Hoon Lee, Russell Gre...
APAL
2007
104views more  APAL 2007»
13 years 8 months ago
Non-well-founded trees in categories
Non-well-founded trees are used in mathematics and computer science, for modelling non-well-founded sets, as well as non-terminating processes or infinite data structures. Catego...
Benno van den Berg, Federico De Marchi
ADBIS
2004
Springer
224views Database» more  ADBIS 2004»
14 years 1 months ago
Using Ontologies for Database Query Reformulation
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
Chokri Ben Necib, Johann Christoph Freytag
WWW
2004
ACM
14 years 8 months ago
RDFPeers: a scalable distributed RDF repository based on a structured peer-to-peer network
Centralized Resource Description Framework (RDF) repositories have limitations both in their failure tolerance and in their scalability. Existing Peer-to-Peer (P2P) RDF repositori...
Min Cai, Martin R. Frank
ICDT
1995
ACM
96views Database» more  ICDT 1995»
13 years 11 months ago
On Two Forms of Structural Recursion
We investigate and compare two forms of recursion on sets for querying nested collections. The rst one is called sri and it corresponds to sequential processing of data. The second...
Dan Suciu, Limsoon Wong