Abstract

There is a growing interest in researching null instantiations, which are those implicit semantic arguments. Many of these implicit arguments can be linked to referents in context, and their discoveries are of great benefits to semantic processing. We address the issue of automatically identifying and resolving implicit arguments in Chinese discourse. For their resolutions, we present an approach that combines the information about overtly labeled arguments and frame-to-frame relations defined by FrameNet. Experimental results on our created corpus demonstrate the effectiveness of our approach.

Highlights

  • In natural discourse, only a small proportion of the theoretically possible semantic arguments of predicates tend to be locally instantiated

  • Overt Frame Elements Based Resolver (OvertFE) This resolver is based on the assumption that the filler of definite null instantiation (DNI) can be found among the overt FE content set in context

  • Based on the experimental methods described in the previous section, we have systematically evaluated our approach on the constructed Chinese null instantiation corpus

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Summary

Introduction

Only a small proportion of the theoretically possible semantic arguments of predicates tend to be locally instantiated. Other locally unrealized semantic roles are called null instantiations (NIs). Many of these implicit roles, while linguistically unexpressed, can often be bound to antecedent referents in the discourse context. Example (1) shows an analyzed result (Li, 2012) by employing Chinese FrameNet (Liu, 2011), which is a lexical semantic knowledge base based on the frame semantics of Fillmore (1982) and takes Berkeley’s FrameNet Project (Baker et al, 1998) as the reference. In Chinese FrameNet, the predicates, called lexical units (LU), evoke frames which roughly correspond to different events or scenarios. Each frame defines a set of arguments called Frame Elements (FE). The set of FEs is further split into core FEs and non-core

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