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The vocabulary mismatch problem is a long-standing problem in information retrieval. Semantic matching holds the promise of solving the problem. Recent advances in language technology have given rise to unsupervised neural models for…

Information Retrieval · Computer Science 2016-11-11 Kezban Dilek Onal , Ismail Sengor Altingovde , Pinar Karagoz , Maarten de Rijke

Conversational search requires accurate interpretation of user intent from complex multi-turn contexts. This paper presents ChatRetriever, which inherits the strong generalization capability of large language models to robustly represent…

Information Retrieval · Computer Science 2024-04-23 Kelong Mao , Chenlong Deng , Haonan Chen , Fengran Mo , Zheng Liu , Tetsuya Sakai , Zhicheng Dou

We propose an unsupervised method to obtain cross-lingual embeddings without any parallel data or pre-trained word embeddings. The proposed model, which we call multilingual neural language models, takes sentences of multiple languages as…

Computation and Language · Computer Science 2018-09-10 Takashi Wada , Tomoharu Iwata

What is the relation between a word and its description, or a word and its embedding? Both descriptions and embeddings are semantic representations of words. But, what information from the original word remains in these representations? Or…

Computation and Language · Computer Science 2022-05-17 Damir Korenčić , Ivan Grubišić

Recent research has made impressive progress in single-turn dialogue modelling. In the multi-turn setting, however, current models are still far from satisfactory. One major challenge is the frequently occurred coreference and information…

Computation and Language · Computer Science 2019-06-18 Hui Su , Xiaoyu Shen , Rongzhi Zhang , Fei Sun , Pengwei Hu , Cheng Niu , Jie Zhou

Keyphrase generation is the task of automatically predicting keyphrases given a piece of long text. Despite its recent flourishing, keyphrase generation on non-English languages haven't been vastly investigated. In this paper, we call…

Computation and Language · Computer Science 2022-06-02 Yifan Gao , Qingyu Yin , Zheng Li , Rui Meng , Tong Zhao , Bing Yin , Irwin King , Michael R. Lyu

Mobile devices use language models to suggest words and phrases for use in text entry. Traditional language models are based on contextual word frequency in a static corpus of text. However, certain types of phrases, when offered to writers…

Computation and Language · Computer Science 2017-10-06 Kenneth C. Arnold , Kai-Wei Chang , Adam T. Kalai

The impressive linguistic abilities of large language models (LLMs) have recommended them as models of human sentence processing, with some conjecturing a positive 'quality-power' relationship (Wilcox et al., 2023), in which language…

Computation and Language · Computer Science 2025-05-20 Yi-Chien Lin , Hongao Zhu , William Schuler

Recognition errors are common in human communication. Similar errors often lead to unwanted behaviour in dialogue systems or virtual assistants. In human communication, we can recover from them by repeating misrecognized words or phrases;…

Computation and Language · Computer Science 2021-08-04 Hoang Long Nguyen , Vincent Renkens , Joris Pelemans , Srividya Pranavi Potharaju , Anil Kumar Nalamalapu , Murat Akbacak

In a controlled experiment of sequence-to-sequence approaches for the task of sentence correction, we find that character-based models are generally more effective than word-based models and models that encode subword information via…

Computation and Language · Computer Science 2017-07-31 Allen Schmaltz , Yoon Kim , Alexander M. Rush , Stuart M. Shieber

Recurrent Neural Networks (RNNs) have been widely used in processing natural language tasks and achieve huge success. Traditional RNNs usually treat each token in a sentence uniformly and equally. However, this may miss the rich semantic…

Computation and Language · Computer Science 2018-11-14 Chang Xu , Weiran Huang , Hongwei Wang , Gang Wang , Tie-Yan Liu

Dense retrieval models using a transformer-based bi-encoder design have emerged as an active area of research. In this work, we focus on the task of monolingual retrieval in a variety of typologically diverse languages using one such…

Information Retrieval · Computer Science 2022-04-06 Xinyu Zhang , Kelechi Ogueji , Xueguang Ma , Jimmy Lin

Machine learning plays a role in many deployed decision systems, often in ways that are difficult or impossible to understand by human stakeholders. Explaining, in a human-understandable way, the relationship between the input and output of…

Machine Learning · Computer Science 2022-11-17 Sahil Verma , Varich Boonsanong , Minh Hoang , Keegan E. Hines , John P. Dickerson , Chirag Shah

Context modeling plays a significant role in building multi-turn dialogue systems. In order to make full use of context information, systems can use Incomplete Utterance Rewriting(IUR) methods to simplify the multi-turn dialogue into…

Computation and Language · Computer Science 2022-03-23 Zhihao Wang , Tangjian Duan , Zihao Wang , Minghui Yang , Zujie Wen , Yongliang Wang

Pronouns are often dropped in Chinese sentences, and this happens more frequently in conversational genres as their referents can be easily understood from context. Recovering dropped pronouns is essential to applications such as…

Computation and Language · Computer Science 2019-06-06 Jingxuan Yang , Jianzhuo Tong , Si Li , Sheng Gao , Jun Guo , Nianwen Xue

Question answering is one of the most important and difficult applications at the border of information retrieval and natural language processing, especially when we talk about complex science questions which require some form of inference…

Computation and Language · Computer Science 2019-05-08 George-Sebastian Pirtoaca , Traian Rebedea , Stefan Ruseti

Multilingual sentence representations from large models encode semantic information from two or more languages and can be used for different cross-lingual information retrieval and matching tasks. In this paper, we integrate contrastive…

Computation and Language · Computer Science 2023-05-02 Weiting Tan , Kevin Heffernan , Holger Schwenk , Philipp Koehn

Although highly correlated, speech and speaker recognition have been regarded as two independent tasks and studied by two communities. This is certainly not the way that people behave: we decipher both speech content and speaker traits at…

Computation and Language · Computer Science 2016-09-28 Zhiyuan Tang , Lantian Li , Dong Wang

Cross-lingual text summarization aims at generating a document summary in one language given input in another language. It is a practically important but under-explored task, primarily due to the dearth of available data. Existing methods…

Computation and Language · Computer Science 2020-06-30 Zi-Yi Dou , Sachin Kumar , Yulia Tsvetkov

Neural machine translation is a recently proposed approach to machine translation. Unlike the traditional statistical machine translation, the neural machine translation aims at building a single neural network that can be jointly tuned to…

Computation and Language · Computer Science 2016-05-23 Dzmitry Bahdanau , Kyunghyun Cho , Yoshua Bengio