Yuchang Cheng


2022

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Sharing Parameter by Conjugation for Knowledge Graph Embeddings in Complex Space
Xincan Feng | Zhi Qu | Yuchang Cheng | Taro Watanabe | Nobuhiro Yugami
Proceedings of TextGraphs-16: Graph-based Methods for Natural Language Processing

A Knowledge Graph (KG) is the directed graphical representation of entities and relations in the real world. KG can be applied in diverse Natural Language Processing (NLP) tasks where knowledge is required. The need to scale up and complete KG automatically yields Knowledge Graph Embedding (KGE), a shallow machine learning model that is suffering from memory and training time consumption issues. To mitigate the computational load, we propose a parameter-sharing method, i.e., using conjugate parameters for complex numbers employed in KGE models. Our method improves memory efficiency by 2x in relation embedding while achieving comparable performance to the state-of-the-art non-conjugate models, with faster, or at least comparable, training time. We demonstrated the generalizability of our method on two best-performing KGE models 5E (CITATION) and ComplEx (CITATION) on five benchmark datasets.

2014

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Detecting the Untranslatable Colloquial Expressions of Japanese Verbs in Cross-Language Instant Messaging
Yuchang Cheng | Masaru Fuji | Tomoki Nagase | Minoru Uegaki | Isaac Okada
Proceedings of the 28th Pacific Asia Conference on Language, Information and Computing

2012

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An Example-Based Japanese Proofreading System for Offshore Development
Yuchang Cheng | Tomoki Nagase
Proceedings of COLING 2012: Demonstration Papers

2008

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Use of Event Types for Temporal Relation Identification in Chinese Text
Yuchang Cheng | Masayuki Asahara | Yuji Matsumoto
Proceedings of the Sixth SIGHAN Workshop on Chinese Language Processing

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Constructing a Temporal Relation Tagged Corpus of Chinese Based on Dependency Structure Analysis
Yuchang Cheng | Masayuki Asahara | Yuji Matsumoto
International Journal of Computational Linguistics & Chinese Language Processing, Volume 13, Number 2, June 2008

2007

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NAIST.Japan: Temporal Relation Identification Using Dependency Parsed Tree
Yuchang Cheng | Masayuki Asahara | Yuji Matsumoto
Proceedings of the Fourth International Workshop on Semantic Evaluations (SemEval-2007)

2006

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Multi-lingual Dependency Parsing at NAIST
Yuchang Cheng | Masayuki Asahara | Yuji Matsumoto
Proceedings of the Tenth Conference on Computational Natural Language Learning (CoNLL-X)

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The Construction of a Dictionary for a Two-layer Chinese Morphological Analyzer
Chooi-Ling Goh | Jia Lü | Yuchang Cheng | Masayuki Asahara | Yuji Matsumoto
Proceedings of the 20th Pacific Asia Conference on Language, Information and Computation

2005

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Chinese Deterministic Dependency Analyzer: Examining Effects of Global Features and Root Node Finder
Yuchang Cheng | Masayuki Asahara | Yuji Matsumoto
Proceedings of the Fourth SIGHAN Workshop on Chinese Language Processing