ACL RD-TEC 1.0 Summarization of J99-1004
Paper Title:
STATISTICAL PROPERTIES OF PROBABILISTIC CONTEXT-FREE GRAMMARS
STATISTICAL PROPERTIES OF PROBABILISTIC CONTEXT-FREE GRAMMARS
Primarily assigned technology terms:
- algorithm
- approximation
- computational linguistics
- constrained optimization
- em algorithm
- estimation procedure
- estimator
- factorization
- frequency estimation
- frequency method
- induction
- language modeling
- language processing
- maximum entropy
- maximum-likelihood
- ml estimation
- modeling
- natural language processing
- optimization
- parameter estimation
- pattern recognition
- probabilistic language modeling
- processing
- reading
- recognition
- statistical modeling
- unconstrained optimization
Other assigned terms:
- association for computational linguistics
- case
- chomsky normal form
- context-free grammar
- context-free grammars
- convergence
- data set
- derivation
- derivation tree
- derivation trees
- distribution
- entropy
- estimation
- fact
- grammar
- grammars
- index
- information theory
- kullback-leibler divergence
- lemma
- linguistic
- linguistics
- maximum entropy principle
- measure
- method
- natural language
- natural languages
- nonterminal
- normal form
- parse
- parse tree
- pcfg
- pcfg model
- pcfgs
- probabilistic context-free grammars
- probabilistic model
- probabilistic models
- probabilities
- probability
- probability distribution
- probability distributions
- procedure
- process
- production rule
- production rules
- proposition
- random sample
- relation
- relative frequency
- representations
- right-hand side
- sentence
- sentential form
- statistics
- subtree
- subtrees
- symbol
- symbols
- terminals
- terms
- theorem
- theory
- topics
- tree
- trees
- words
