Direct Maximization of Average Precision by Hill-Climbing, with a Comparison to a Maximum Entropy Approach.
William T. MorganWarren R. GreiffJohn C. HendersonPublished in: HLT-NAACL (Short Papers) (2004)
Keyphrases
- maximum entropy
- average precision
- hill climbing
- test collection
- precision recall curves
- maximum entropy principle
- simulated annealing
- search algorithm
- retrieval systems
- retrieval effectiveness
- search space
- genetic algorithm ga
- vector space model
- evaluation metrics
- ranked list
- conditional random fields
- search procedure
- search strategy
- information retrieval
- information retrieval systems
- precision and recall
- co occurrence
- ground truth
- objective function