Title :
Performance of two information retrieval systems in chinese IR: SMART system and okapi system
Author :
He, Hongzhao ; He, Pilian ; Gao, Jianfeng ; Huang, Changning
Author_Institution :
Sch. of Electron. Inf. Eng., Tianjin Univ., China
Abstract :
The SMART System and Okapi System are two distinguished information retrieval (IR) systems. The former uses a vector space model and the latter uses a probabilistic retrieval strategy. A lot of previous research on information retrieval was carried out on these two systems, which showed that both were effective in IR. In this paper, we carry out a series of experiments on TREC-9 collections to discuss the different performance between these two kinds of retrieval systems in Chinese information retrieval. Our experimental results show that the performance of the Okapi System is better than that of the SMART System.
Keywords :
information retrieval; information retrieval system evaluation; Chinese information retrieval; Okapi System; SMART System; TREC-9 collections; information retrieval systems; probabilistic retrieval strategy; vector space model; Asia; Helium; Indexing; Inference algorithms; Information retrieval; Natural languages; Neural networks; Optical computing; Research and development; Software libraries;
Conference_Titel :
TENCON '02. Proceedings. 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering
Print_ISBN :
0-7803-7490-8
DOI :
10.1109/TENCON.2002.1181314
