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In this paper, we present an approach to incorporate retrieved datapoints as supporting evidence for context-dependent semantic parsing, such as generating source code conditioned on the class environment. Our approach naturally combines a…

Computation and Language · Computer Science 2019-06-18 Daya Guo , Duyu Tang , Nan Duan , Ming Zhou , Jian Yin

Open-domain conversational search assistants aim at answering user questions about open topics in a conversational manner. In this paper we show how the Transformer architecture achieves state-of-the-art results in key IR tasks, leveraging…

Information Retrieval · Computer Science 2021-01-21 Rafael Ferreira , Mariana Leite , David Semedo , Joao Magalhaes

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

Knowledge-intensive language tasks (KILTs) benefit from retrieving high-quality relevant contexts from large external knowledge corpora. Learning task-specific retrievers that return relevant contexts at an appropriate level of semantic…

Information Retrieval · Computer Science 2023-05-01 Jiangui Chen , Ruqing Zhang , Jiafeng Guo , Maarten de Rijke , Yiqun Liu , Yixing Fan , Xueqi Cheng

The task of Information Retrieval (IR) requires a system to identify relevant documents based on users' information needs. In real-world scenarios, retrievers are expected to not only rely on the semantic relevance between the documents and…

Information Retrieval · Computer Science 2024-05-07 Xinran Zhao , Tong Chen , Sihao Chen , Hongming Zhang , Tongshuang Wu

In dialogue state tracking (DST), in-context learning comprises a retriever that selects labeled dialogues as in-context examples and a DST model that uses these examples to infer the dialogue state of the query dialogue. Existing methods…

Computation and Language · Computer Science 2025-06-04 Haesung Pyun , Yoonah Park , Yohan Jo

Current state-of-the-art neural dialogue systems are mainly data-driven and are trained on human-generated responses. However, due to the subjectivity and open-ended nature of human conversations, the complexity of training dialogues varies…

Computation and Language · Computer Science 2020-03-17 Hengyi Cai , Hongshen Chen , Cheng Zhang , Yonghao Song , Xiaofang Zhao , Yangxi Li , Dongsheng Duan , Dawei Yin

Conversational understanding is an integral part of modern intelligent devices. In a large fraction of the global traffic from customers using smart digital assistants, frictions in dialogues may be attributed to incorrect understanding of…

Machine Learning · Computer Science 2022-10-25 Niranjan Uma Naresh , Ziyan Jiang , Ankit , Sungjin Lee , Jie Hao , Xing Fan , Chenlei Guo

Question generation is a widely used data augmentation approach with extensive applications, and extracting qualified candidate answers from context passages is a critical step for most question generation systems. However, existing methods…

Computation and Language · Computer Science 2023-10-23 Zhuoer Wang , Yicheng Wang , Ziwei Zhu , James Caverlee

The growing demand for efficient semantic communication systems capable of managing diverse tasks and adapting to fluctuating channel conditions has driven the development of robust, resource-efficient frameworks. This article introduces a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Xiang Chen , Shuying Gan , Chenyuan Feng , Xijun Wang , Tony Q. S. Quek

The task of information retrieval is an important component of many natural language processing systems, such as open domain question answering. While traditional methods were based on hand-crafted features, continuous representations based…

Computation and Language · Computer Science 2022-08-05 Gautier Izacard , Edouard Grave

Retrieval-based conversational systems learn to rank response candidates for a given dialogue context by computing the similarity between their vector representations. However, training on a single textual form of the multi-turn context…

Computation and Language · Computer Science 2022-04-19 Lahari Poddar , Peiyao Wang , Julia Reinspach

Pre-trained contrastive vision-language models have demonstrated remarkable performance across a wide range of tasks. However, they often struggle on fine-trained datasets with categories not adequately represented during pre-training,…

Machine Learning · Computer Science 2024-05-03 Yifei Ming , Yixuan Li

Ranking consistently emerges as a primary focus in information retrieval research. Retrieval and ranking models serve as the foundation for numerous applications, including web search, open domain QA, enterprise domain QA, and text-based…

Information Retrieval · Computer Science 2024-12-16 Hansa Meghwani

Continual learning refers to the capability of a machine learning model to learn and adapt to new information, without compromising its performance on previously learned tasks. Although several studies have investigated continual learning…

Information Retrieval · Computer Science 2024-06-21 Jingrui Hou , Georgina Cosma , Axel Finke

We introduce two pre-trained retrieval focused multilingual sentence encoding models, respectively based on the Transformer and CNN model architectures. The models embed text from 16 languages into a single semantic space using a multi-task…

The integration of external personalized context information into document-grounded conversational systems has significant potential business value, but has not been well-studied. Motivated by the concept of personalized context-aware…

Artificial Intelligence · Computer Science 2023-08-29 Hui Wan , Hongkang Li , Songtao Lu , Xiaodong Cui , Marina Danilevsky

The ability to engage in mixed-initiative interaction is one of the core requirements for a conversational search system. How to achieve this is poorly understood. We propose a set of unsupervised metrics, termed ConversationShape, that…

Information Retrieval · Computer Science 2020-05-27 Svitlana Vakulenko , Evangelos Kanoulas , Maarten de Rijke

Search agents powered by large language models can autonomously decompose queries, retrieve information, and synthesize answers through multi-step reasoning. However, the rapid growth of training methods has outpaced controlled comparison:…

Computation and Language · Computer Science 2026-05-28 Yibo Zhao , Zichen Ding , Jiayi Wu , Zun Wang , Xiang Li

Retrieval models aim at selecting a small set of item candidates which match the preference of a given user. They play a vital role in large-scale recommender systems since subsequent models such as rankers highly depend on the quality of…

Information Retrieval · Computer Science 2024-02-01 Lei Li , Jianxun Lian , Xiao Zhou , Xing Xie