Title
Conditional Random Fields with High-Order Features for Sequence Labeling.
Abstract
Dependencies among neighbouring labels in a sequence is an important source of information for sequence labeling problems. However, only dependencies be- tween adjacent labels are commonly exploited in practice because of the high computational complexity of typical inference algorithms when longer distance dependencies are taken into account. In this paper, we show that it is possible to design efficient inference algorithms for a conditional random field using features that depend on long consecutive label sequences (high-order features), as long as the number of distinct label sequences used in the features is small. This leads to efficient learning algorithms for these conditional random fields. We show ex- perimentally that exploiting dependencies using high-order features can lead to substantial performance improvements for some problems and discuss conditions under which high-order features can be effective.
Year
Venue
Field
2009
NIPS
Conditional random field,Sequence labeling,Pattern recognition,Computer science,Inference,Stochastic process,Image segmentation,Artificial intelligence,Inference engine,Dependency theory (database theory),Machine learning,Computational complexity theory
DocType
Citations 
PageRank 
Conference
16
0.70
References 
Authors
11
4
Name
Order
Citations
PageRank
Nan Ye114912.60
Wee Sun Lee23325382.37
hai leong chieu376051.41
Dan Wu42318272.22