Effects of POS Tagging on Performance of IR Systems
Hong Zan · Zhongwen xinxi xuebao · 2005
NLP technology combined with information retrieval has become mainstream in the IR field.In this article,the authors combine POS tagging with IR,in an attempt to find the effects of POS tagging on the performance of IR systems.Using the SMART system,the authors performed experiments with different tagsets and different term vector weighting schemes.According to the experiments,we found that retrieval performance using tags improved in certain topics and documents.The effects,however,are inferior to the assignment of appropriate term weighting.The effects concern concrete words in topics and documents.We still need further research to find general rules.