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This research demonstrates how large language models can automate the creation of simplified dictionary definitions for learners, addressing the high cost of manual lexicography. By employing an LLM-as-a-judge evaluation framework and iterative simplification techniques, the study achieves results comparable to human annotators while maintaining lexical simplicity. The work advances natural language processing applications in education by providing a scalable solution for generating high-quality reference materials.
Towards Automated Lexicography: Generating and Evaluating Definitions for Learner's Dictionaries
arXiv:2601.01842v2 Announce Type: replace Abstract: Dictionary definitions are an essential resource for learning word senses, but manually creating them is costly. We thus study dictionary definition generation (DDG), i.e., the generation of non-contextualized definitions for given headwords. Specifically, we address learner's dictionary definition generation (LDDG), where definitions should be written using simple vocabulary. First, we introduce a reliable evaluation approach for DDG, based on newly proposed evaluation criteria and powered by an LLM-as-a-judge. To provide reference definitions for the evaluation, we construct a dataset of Japanese dictionary definitions in collaboration with a professional lexicographer. Validation results demonstrate that our evaluation approach agrees with human annotators at a level comparable to inter-annotator agreement. Second, we propose an LLM-based LDDG approach that employs iterative simplification. Experimental results show that our approach yields definitions that achieve high scores on the proposed criteria and exhibit high lexical simplicity.
Abstract:Dictionary definitions are an essential resource for learning word senses, but manually creating them is costly. We thus study dictionary definition generation (DDG), i.e., the generation of non-contextualized definitions for given headwords. Specifically, we address learner's dictionary definition generation (LDDG), where definitions should be written using simple vocabulary. First, we introduce a reliable evaluation approach for DDG, based on newly proposed evaluation criteria and powered by an LLM-as-a-judge. To provide reference definitions for the evaluation, we construct a dataset of Japanese dictionary definitions in collaboration with a professional lexicographer. Validation results demonstrate that our evaluation approach agrees with human annotators at a level comparable to inter-annotator agreement. Second, we propose an LLM-based LDDG approach that employs iterative simplification. Experimental results show that our approach yields definitions that achieve high scores on the proposed criteria and exhibit high lexical simplicity.
Computation and Language (cs.CL)
arXiv:2601.01842 [cs.CL]
(or arXiv:2601.01842v2 [cs.CL] for this version)
https://doi.org/10.48550/arXiv.2601.01842 Focus to learn more arXiv-issued DOI via DataCite
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