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Mingtong Liu

7 accepted papers

2024

A Reinforcement Learning Approach to Improve Low-Resource Machine Translation Leveraging Domain Monolingual Data

COLING 2024main

Due to the lack of parallel data, the mainstream fine-tuning-based domain adaptation methods have the overfitting problem in the translation of low-resource domains, and it is difficult for the model to learn the in-domain generalization knowledge. To address the above issue, in this work, we propos…

2023

MT2: Towards a Multi-Task Machine Translation Model with Translation-Specific In-Context Learning

EMNLP 2023long main

Sentence-level translation, document-level translation, translation memory, and terminology constrained translation play an important role in machine translation. Most of the previous work uses separate models or methods to solve these tasks, which is not conducive to knowledge transfer of different…

Cited by 0SourceScholar
2022

Long Text Generation with Topic-aware Discrete Latent Variable Model

EMNLP 2022main

Generating coherent long texts is an important yet challenging task, particularly forthe open-ended generation. Prior work based on discrete latent codes focuses on the modeling of discourse relation, resulting in discrete codes only learning shallow semantics (Ji and Huang, 2021). A natural text al…

Cited by 4SourcePDFScholar
2022

Recovering Gold from Black Sand: Multilingual Dense Passage Retrieval with Hard and False Negative Samples

EMNLP 2022main

Negative samples have not been efficiently explored in multilingual dense passage retrieval. In this paper, we propose a novel multilingual dense passage retrieval framework, mHFN, to recover and utilize hard and false negative samples. mHFN consists of three key components: 1) a multilingual hard n…

2021

Syntactically-Informed Unsupervised Paraphrasing with Non-Parallel Data

EMNLP 2021main

Previous works on syntactically controlled paraphrase generation heavily rely on large-scale parallel paraphrase data that is not easily available for many languages and domains. In this paper, we take this research direction to the extreme and investigate whether it is possible to learn syntactical…

2020

A Learning-Exploring Method to Generate Diverse Paraphrases with Multi-Objective Deep Reinforcement Learning

COLING 2020main

Paraphrase generation (PG) is of great importance to many downstream tasks in natural language processing. Diversity is an essential nature to PG for enhancing generalization capability and robustness of downstream applications. Recently, neural sequence-to-sequence (Seq2Seq) models have shown promi…

Cited by 19SourcePDFScholar
2020

Exploring Bilingual Parallel Corpora for Syntactically Controllable Paraphrase Generation

IJCAI 2020poster

Paraphrase generation is of great importance to many downstream tasks in natural language processing. Recent efforts have focused on generating paraphrases in specific syntactic forms, which, generally, heavily relies on manually annotated paraphrase data that is not easily available for many langua…

Cited by 0SourcePDFScholar