Tiantian Zhu


2023

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Controllable Contrastive Generation for Multilingual Biomedical Entity Linking
Tiantian Zhu | Yang Qin | Qingcai Chen | Xin Mu | Changlong Yu | Yang Xiang
Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing

Multilingual biomedical entity linking (MBEL) aims to map language-specific mentions in the biomedical text to standardized concepts in a multilingual knowledge base (KB) such as Unified Medical Language System (UMLS). In this paper, we propose Con2GEN, a prompt-based controllable contrastive generation framework for MBEL, which summarizes multidimensional information of the UMLS concept mentioned in biomedical text into a natural sentence following a predefined template. Instead of tackling the MBEL problem with a discriminative classifier, we formulate it as a sequence-to-sequence generation task, which better exploits the shared dependencies between source mentions and target entities. Moreover, Con2GEN matches against UMLS concepts in as many languages and types as possible, hence facilitating cross-information disambiguation. Extensive experiments show that our model achieves promising performance improvements compared with several state-of-the-art techniques on the XL-BEL and the Mantra GSC datasets spanning 12 typologically diverse languages.

2014

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ECNU: Expression- and Message-level Sentiment Orientation Classification in Twitter Using Multiple Effective Features
Jiang Zhao | Man Lan | Tiantian Zhu
Proceedings of the 8th International Workshop on Semantic Evaluation (SemEval 2014)

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ECNU: Leveraging on Ensemble of Heterogeneous Features and Information Enrichment for Cross Level Semantic Similarity Estimation
Tiantian Zhu | Man Lan
Proceedings of the 8th International Workshop on Semantic Evaluation (SemEval 2014)

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ECNU: One Stone Two Birds: Ensemble of Heterogenous Measures for Semantic Relatedness and Textual Entailment
Jiang Zhao | Tiantian Zhu | Man Lan
Proceedings of the 8th International Workshop on Semantic Evaluation (SemEval 2014)

2013

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ECNUCS: Measuring Short Text Semantic Equivalence Using Multiple Similarity Measurements
Tiantian Zhu | Lan Man
Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 1: Proceedings of the Main Conference and the Shared Task: Semantic Textual Similarity

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ECNUCS: A Surface Information Based System Description of Sentiment Analysis in Twitter in the SemEval-2013 (Task 2)
Tiantian Zhu | Fangxi Zhang | Lan Man
Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013)

2012

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Tiantianzhu7:System Description of Semantic Textual Similarity (STS) in the SemEval-2012 (Task 6)
Tiantian Zhu | Man Lan
*SEM 2012: The First Joint Conference on Lexical and Computational Semantics – Volume 1: Proceedings of the main conference and the shared task, and Volume 2: Proceedings of the Sixth International Workshop on Semantic Evaluation (SemEval 2012)