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Relation extraction (RE), which has relied on structurally annotated corpora for model training, has been particularly challenging in low-resource scenarios and domains. Recent literature has tackled low-resource RE by self-supervised…

Computation and Language · Computer Science 2023-06-01 Wenxuan Zhou , Sheng Zhang , Tristan Naumann , Muhao Chen , Hoifung Poon

Query rewriting (QR) systems are widely used to reduce the friction caused by errors in a spoken language understanding pipeline. However, the underlying supervised models require a large number of labeled pairs, and these pairs are hard…

Computation and Language · Computer Science 2020-12-22 Yunmo Chen , Sixing Lu , Fan Yang , Xiaojiang Huang , Xing Fan , Chenlei Guo

In conversational search, the user's real search intent for the current turn is dependent on the previous conversation history. It is challenging to determine a good search query from the whole conversation context. To avoid the expensive…

Information Retrieval · Computer Science 2024-01-30 Fengran Mo , Kelong Mao , Yutao Zhu , Yihong Wu , Kaiyu Huang , Jian-Yun Nie

Low-resource domains, characterized by scarce data and annotations, present significant challenges for language and visual understanding tasks, with the latter much under-explored in the literature. Recent advancements in Vision-Language…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Nicola Dall'Asen , Yiming Wang , Enrico Fini , Elisa Ricci

Text classification tends to be difficult when data are deficient or when it is required to adapt to unseen classes. In such challenging scenarios, recent studies have often used meta-learning to simulate the few-shot task, thus negating…

Information Retrieval · Computer Science 2019-11-22 Shumin Deng , Ningyu Zhang , Zhanlin Sun , Jiaoyan Chen , Huajun Chen

While humans can solve a visual puzzle that requires logical reasoning by observing only few samples, it would require training over large amount of data for state-of-the-art deep reasoning models to obtain similar performance on the same…

Machine Learning · Computer Science 2020-07-24 Youngsung Kim , Jinwoo Shin , Eunho Yang , Sung Ju Hwang

We equip a smaller Language Model to generalise to answering challenging compositional questions that have not been seen in training. To do so we propose a combination of multitask supervised pretraining on up to 93 tasks designed to…

Computation and Language · Computer Science 2023-08-22 Tim Hartill , Neset Tan , Michael Witbrock , Patricia J. Riddle

Few-shot knowledge graph (KG) completion task aims to perform inductive reasoning over the KG: given only a few support triplets of a new relation $\bowtie$ (e.g., (chop,$\bowtie$,kitchen), (read,$\bowtie$,library), the goal is to predict…

Machine Learning · Computer Science 2022-10-14 Qian Huang , Hongyu Ren , Jure Leskovec

Recently, contrastive learning attracts increasing interests in neural text generation as a new solution to alleviate the exposure bias problem. It introduces a sequence-level training signal which is crucial to generation tasks that always…

Computation and Language · Computer Science 2023-02-06 Chenxin An , Jiangtao Feng , Kai Lv , Lingpeng Kong , Xipeng Qiu , Xuanjing Huang

Annotation of large-scale 3D data is notoriously cumbersome and costly. As an alternative, weakly-supervised learning alleviates such a need by reducing the annotation by several order of magnitudes. We propose COARSE3D, a novel…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Rong Li , Anh-Quan Cao , Raoul de Charette

Controllable generative sequence models with the capability to extract and replicate the style of specific examples enable many applications, including narrating audiobooks in different voices, auto-completing and auto-correcting written…

Machine Learning · Computer Science 2022-07-04 Jen-Hao Rick Chang , Ashish Shrivastava , Hema Swetha Koppula , Xiaoshuai Zhang , Oncel Tuzel

Generative language modelling has surged in popularity with the emergence of services such as ChatGPT and Google Gemini. While these models have demonstrated transformative potential in productivity and communication, they overwhelmingly…

Computation and Language · Computer Science 2025-07-09 Josh McGiff , Nikola S. Nikolov

Query rewriting is a crucial technique for passage retrieval in open-domain conversational question answering (CQA). It decontexualizes conversational queries into self-contained questions suitable for off-the-shelf retrievers. Existing…

Computation and Language · Computer Science 2024-06-18 Tianhua Zhang , Kun Li , Hongyin Luo , Xixin Wu , James Glass , Helen Meng

Dense retrievers have achieved impressive performance, but their demand for abundant training data limits their application scenarios. Contrastive pre-training, which constructs pseudo-positive examples from unlabeled data, has shown great…

Information Retrieval · Computer Science 2023-06-07 Yibin Lei , Liang Ding , Yu Cao , Changtong Zan , Andrew Yates , Dacheng Tao

Recently, neural networks have shown impressive progress across diverse fields, with speech processing being no exception. However, recent breakthroughs in this area require extensive offline training using large datasets and tremendous…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-05 Umberto Cappellazzo , Enrico Fini , Muqiao Yang , Daniele Falavigna , Alessio Brutti , Bhiksha Raj

We present a new zero-shot dense retrieval (ZeroDR) method, COCO-DR, to improve the generalization ability of dense retrieval by combating the distribution shifts between source training tasks and target scenarios. To mitigate the impact of…

Computation and Language · Computer Science 2022-11-28 Yue Yu , Chenyan Xiong , Si Sun , Chao Zhang , Arnold Overwijk

Generative retrieval constitutes an innovative approach in information retrieval, leveraging generative language models (LM) to generate a ranked list of document identifiers (docid) for a given query. It simplifies the retrieval pipeline…

Information Retrieval · Computer Science 2025-02-13 Penghao Lu , Xin Dong , Yuansheng Zhou , Lei Cheng , Chuan Yuan , Linjian Mo

Conversational search supports multi-turn user-system interactions to solve complex information needs. Different from the traditional single-turn ad-hoc search, conversational search encounters a more challenging problem of…

Information Retrieval · Computer Science 2024-07-30 Fengran Mo , Chen Qu , Kelong Mao , Yihong Wu , Zhan Su , Kaiyu Huang , Jian-Yun Nie

The dependency between an adequate question formulation and correct answer selection is a very intriguing but still underexplored area. In this paper, we show that question rewriting (QR) of the conversational context allows to shed more…

Computation and Language · Computer Science 2022-02-04 Svitlana Vakulenko , Shayne Longpre , Zhucheng Tu , Raviteja Anantha

This paper addresses the persistent challenge in Keyword Spotting (KWS), a fundamental component in speech technology, regarding the acquisition of substantial labeled data for training. Given the difficulty in obtaining large quantities of…

Sound · Computer Science 2024-09-04 Weinan Dai , Yifeng Jiang , Yuanjing Liu , Jinkun Chen , Xin Sun , Jinglei Tao