Integrating Ngram Model and Case-based Learning for Chinese Word Segmentation

Abstract

This paper presents our recent work for participation in the First International Chinese Word Segmentation Bake-off (ICWSB-1). It is based on a general-purpose ngram model for word segmentation and a case-based learning approach to disambiguation. This system excels in identifying in-vocabulary (IV) words, achieving a recall of around 96-98%. Here we present our strategies for language model training and disambiguation rule learning, analyze the system's performance, and discuss areas for further improvement, e.g., out-of-vocabulary (OOV) word discovery.