A First Investigation on Mongolian Information Retrieval

In this paper we present an attempt to build a test collection for Mongolian IR as well as some preliminary tests about the key issues in Mongolian Information Retrieval: using a stoplist and using word stemming. Our preliminary tests will show that while these basic operations on Mongolian can bring slight improvements in retrieval effectiveness, many problems remain. The results using stemming and stoplist show that the stemming can potentially lead to some gain in retrieval effectiveness; The stoplist slightly improve retrieval effectiveness, but it can reduce the index significantly.