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Question answering (QA) systems are sensitive to the many different ways natural language expresses the same information need. In this paper we turn to paraphrases as a means of capturing this knowledge and present a general framework which…

计算与语言 · 计算机科学 2017-08-22 Li Dong , Jonathan Mallinson , Siva Reddy , Mirella Lapata

In the context of neural machine translation, data augmentation (DA) techniques may be used for generating additional training samples when the available parallel data are scarce. Many DA approaches aim at expanding the support of the…

We implement a method for re-ranking top-10 results of a state-of-the-art question answering (QA) system. The goal of our re-ranking approach is to improve the answer selection given the user question and the top-10 candidates. We focus on…

机器学习 · 计算机科学 2021-06-17 Michael Barz , Daniel Sonntag

Context modeling plays a critical role in building multi-turn dialogue systems. Conversational Query Rewriting (CQR) aims to simplify the multi-turn dialogue modeling into a single-turn problem by explicitly rewriting the conversational…

计算与语言 · 计算机科学 2021-02-22 Hang Liu , Meng Chen , Youzheng Wu , Xiaodong He , Bowen Zhou

Conversational Question Answering (CQA) aims to answer questions contained within dialogues, which are not easily interpretable without context. Developing a model to rewrite conversational questions into self-contained ones is an emerging…

计算与语言 · 计算机科学 2022-11-02 Zhiyu Chen , Jie Zhao , Anjie Fang , Besnik Fetahu , Oleg Rokhlenko , Shervin Malmasi

Exploiting cross-lingual resources is an effective way to compensate for data scarcity of low resource languages. Recently, a novel multilingual model fusion technique has been proposed where a model is trained to learn cross-lingual…

计算与语言 · 计算机科学 2023-06-16 Muhammad Umar Farooq , Thomas Hain

The quality of a Neural Machine Translation system depends substantially on the availability of sizable parallel corpora. For low-resource language pairs this is not the case, resulting in poor translation quality. Inspired by work in…

计算与语言 · 计算机科学 2018-02-14 Marzieh Fadaee , Arianna Bisazza , Christof Monz

Retrieval-Augmented Large Language Models (LLMs), which incorporate the non-parametric knowledge from external knowledge bases into LLMs, have emerged as a promising approach to enhancing response accuracy in several tasks, such as…

计算与语言 · 计算机科学 2024-03-29 Soyeong Jeong , Jinheon Baek , Sukmin Cho , Sung Ju Hwang , Jong C. Park

Legal question answering (QA) has attracted increasing attention from people seeking legal advice, which aims to retrieve the most applicable answers from a large-scale database of question-answer pairs. Previous methods mainly use a…

计算与语言 · 计算机科学 2024-12-30 Shiwen Ni , Hao Cheng , Min Yang

Question rewriting (QR) is a subtask of conversational question answering (CQA) aiming to ease the challenges of understanding dependencies among dialogue history by reformulating questions in a self-contained form. Despite seeming…

计算与语言 · 计算机科学 2022-04-14 Etsuko Ishii , Yan Xu , Samuel Cahyawijaya , Bryan Wilie

There is an emerging need for predictive models to be trained on-the-fly, since in numerous machine learning applications data are arriving in an online fashion. A critical challenge encountered is that of limited availability of ground…

Efforts to leverage deep learning models in low-resource regimes have led to numerous augmentation studies. However, the direct application of methods such as mixup and cutout to text data, is limited due to their discrete characteristics.…

计算与语言 · 计算机科学 2024-03-26 Kyohoon Jin , Junho Lee , Juhwan Choi , Sangmin Song , Youngbin Kim

Fine-tuning a pre-trained language model via the contrastive learning framework with a large amount of unlabeled sentences or labeled sentence pairs is a common way to obtain high-quality sentence representations. Although the contrastive…

计算与语言 · 计算机科学 2022-11-01 Tianduo Wang , Wei Lu

Sequence-to-Sequence (S2S) models recently started to show state-of-the-art performance for automatic speech recognition (ASR). With these large and deep models overfitting remains the largest problem, outweighing performance improvements…

音频与语音处理 · 电气工程与系统科学 2020-02-04 Thai-Son Nguyen , Sebastian Stueker , Jan Niehues , Alex Waibel

Automatic query reformulation is a widely utilized technology for enriching user requirements and enhancing the outcomes of code search. It can be conceptualized as a machine translation task, wherein the objective is to rephrase a given…

软件工程 · 计算机科学 2023-07-04 Yuetian Mao , Chengcheng Wan , Yuze Jiang , Xiaodong Gu

Input errors in question-answering (QA) systems often lead to incorrect responses. Large language models (LLMs) struggle with this task, frequently failing to interpret user intent (misinterpretation) or unnecessarily altering the original…

计算与语言 · 计算机科学 2025-11-06 Longpeng Qiu , Ting Li , Shuai Mao , Nan Yang , Xiaohui Yan

The Residual Quantization (RQ) framework is revisited where the quantization distortion is being successively reduced in multi-layers. Inspired by the reverse-water-filling paradigm in rate-distortion theory, an efficient regularization on…

机器学习 · 计算机科学 2017-05-02 Sohrab Ferdowsi , Slava Voloshynovskiy , Dimche Kostadinov

The existing Text-to-SQL models suffer from a shortage of training data, inhibiting their ability to fully facilitate the applications of SQL queries in new domains. To address this challenge, various data synthesis techniques have been…

机器学习 · 计算机科学 2025-04-08 Shenyang Liu , Saleh Almohaimeed , Liqiang Wang

The onset of the COVID-19 pandemic accentuated the need for access to biomedical literature to answer timely and disease-specific questions. During the early days of the pandemic, one of the biggest challenges we faced was the lack of…

计算与语言 · 计算机科学 2023-09-29 Chumki Basu , Himanshu Garg , Allen McIntosh , Sezai Sablak , John R. Wullert

As Large Language Models (LLMs) and Retrieval Augmentation Generation (RAG) techniques have evolved, query rewriting has been widely incorporated into the RAG system for downstream tasks like open-domain QA. Many works have attempted to…

计算与语言 · 计算机科学 2024-05-24 Shengyu Mao , Yong Jiang , Boli Chen , Xiao Li , Peng Wang , Xinyu Wang , Pengjun Xie , Fei Huang , Huajun Chen , Ningyu Zhang