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The amount of audio data available on public websites is growing rapidly, and an efficient mechanism for accessing the desired data is necessary. We propose a content-based audio retrieval method that can retrieve a target audio that is…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-21 Daiki Takeuchi , Yasunori Ohishi , Daisuke Niizumi , Noboru Harada , Kunio Kashino

Words have been represented in a high-dimensional vector space that encodes their semantic similarities, enabling downstream applications such as retrieving synonyms, antonyms, and relevant contexts. However, despite recent advances in…

Computation and Language · Computer Science 2024-09-25 Genta Indra Winata , Ruochen Zhang , David Ifeoluwa Adelani

Large-scale retrieval is to recall relevant documents from a huge collection given a query. It relies on representation learning to embed documents and queries into a common semantic encoding space. According to the encoding space, recent…

Information Retrieval · Computer Science 2023-06-06 Tao Shen , Xiubo Geng , Chongyang Tao , Can Xu , Guodong Long , Kai Zhang , Daxin Jiang

Generating a text abstract from a set of documents remains a challenging task. The neural encoder-decoder framework has recently been exploited to summarize single documents, but its success can in part be attributed to the availability of…

Computation and Language · Computer Science 2018-08-29 Logan Lebanoff , Kaiqiang Song , Fei Liu

We present Omni-Embed-Nemotron, a unified multimodal retrieval embedding model developed to handle the increasing complexity of real-world information needs. While Retrieval-Augmented Generation (RAG) has significantly advanced language…

Computation and Language · Computer Science 2025-10-07 Mengyao Xu , Wenfei Zhou , Yauhen Babakhin , Gabriel Moreira , Ronay Ak , Radek Osmulski , Bo Liu , Even Oldridge , Benedikt Schifferer

Recent information retrieval (IR) models are pre-trained and instruction-tuned on massive datasets and tasks, enabling them to perform well on a wide range of tasks and potentially generalize to unseen tasks with instructions. However,…

Information Retrieval · Computer Science 2024-10-15 Weiwei Sun , Zhengliang Shi , Jiulong Wu , Lingyong Yan , Xinyu Ma , Yiding Liu , Min Cao , Dawei Yin , Zhaochun Ren

Expert search aims to find and rank experts based on a user's query. In academia, retrieving experts is an efficient way to navigate through a large amount of academic knowledge. Here, we study how different distributed representations of…

Information Retrieval · Computer Science 2022-11-10 Mark Berger , Jakub Zavrel , Paul Groth

Dense retrieval models usually adopt vectors from the last hidden layer of the document encoder to represent a document, which is in contrast to the fact that representations in different layers of a pre-trained language model usually…

Information Retrieval · Computer Science 2025-09-30 Zhongbin Xie , Thomas Lukasiewicz

Existing works in image retrieval often consider retrieving images with one or two query inputs, which do not generalize to multiple queries. In this work, we investigate a more challenging scenario for composing multiple multimodal queries…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Andrei Neculai , Yanbei Chen , Zeynep Akata

Multimodal retrieval is the task of aggregating information from queries across heterogeneous modalities to retrieve desired targets. State-of-the-art multimodal retrieval models can understand complex queries, yet they are typically…

Information Retrieval · Computer Science 2026-03-25 Chuong Huynh , Manh Luong , Abhinav Shrivastava

MLLM agents demonstrate potential for complex embodied tasks by retrieving multimodal task-relevant trajectory data. However, current retrieval methods primarily focus on surface-level similarities of textual or visual cues in trajectories,…

Machine Learning · Computer Science 2025-05-23 Junpeng Yue , Xinrun Xu , Börje F. Karlsson , Zongqing Lu

Multimodal encoders have pushed the boundaries of visual document retrieval, matching textual query tokens directly to image patches and achieving state-of-the-art performance on public benchmarks. Recent models relying on this paradigm…

Computation and Language · Computer Science 2026-04-08 Omri Uzan , Asaf Yehudai , Roi pony , Eyal Shnarch , Ariel Gera

We present an end-to-end differentiable training method for retrieval-augmented open-domain question answering systems that combine information from multiple retrieved documents when generating answers. We model retrieval decisions as…

Computation and Language · Computer Science 2021-12-07 Devendra Singh Sachan , Siva Reddy , William Hamilton , Chris Dyer , Dani Yogatama

Visual-semantic embedding aims to learn a joint embedding space where related video and sentence instances are located close to each other. Most existing methods put instances in a single embedding space. However, they struggle to embed…

Computer Vision and Pattern Recognition · Computer Science 2023-05-31 Huy Manh Nguyen , Tomo Miyazaki , Yoshihiro Sugaya , Shinichiro Omachi

Retrieving relevant items that match users' queries from billion-scale corpus forms the core of industrial e-commerce search systems, in which embedding-based retrieval (EBR) methods are prevailing. These methods adopt a two-tower framework…

Information Retrieval · Computer Science 2023-03-21 Binbin Wang , Mingming Li , Zhixiong Zeng , Jingwei Zhuo , Songlin Wang , Sulong Xu , Bo Long , Weipeng Yan

Large Language Models (LLMs)-based text retrieval retrieves documents relevant to search queries based on vector similarities. Documents are pre-encoded offline, while queries arrive in real-time, necessitating an efficient online query…

Information Retrieval · Computer Science 2026-02-02 Guangyuan Ma , Yongliang Ma , Xuanrui Gou , Zhenpeng Su , Ming Zhou , Songlin Hu

Streaming text generation has become a common way of increasing the responsiveness of language model powered applications, such as chat assistants. At the same time, extracting semantic information from generated text is a useful tool for…

Computation and Language · Computer Science 2024-10-15 Nicholas Popovič , Michael Färber

In-context learning is a new learning paradigm where a language model conditions on a few input-output pairs (demonstrations) and a test input, and directly outputs the prediction. It has been shown highly dependent on the provided…

Computation and Language · Computer Science 2023-05-17 Xiaonan Li , Kai Lv , Hang Yan , Tianyang Lin , Wei Zhu , Yuan Ni , Guotong Xie , Xiaoling Wang , Xipeng Qiu

We replicate recent experiments attempting to demonstrate an attractive hypothesis about the use of the Fisher kernel framework and mixture models for aggregating word embeddings towards document representations and the use of these…

Computation and Language · Computer Science 2020-01-15 Luca Papariello , Alexandros Bampoulidis , Mihai Lupu

The ever-increasing size of language models curtails their widespread availability to the community, thereby galvanizing many companies into offering access to large language models through APIs. One particular type, suitable for dense…

Information Retrieval · Computer Science 2023-07-10 Ehsan Kamalloo , Xinyu Zhang , Odunayo Ogundepo , Nandan Thakur , David Alfonso-Hermelo , Mehdi Rezagholizadeh , Jimmy Lin