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相关论文: A Thorough Examination on Zero-shot Dense Retrieva…

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Various techniques have been developed in recent years to improve dense retrieval (DR), such as unsupervised contrastive learning and pseudo-query generation. Existing DRs, however, often suffer from effectiveness tradeoffs between…

信息检索 · 计算机科学 2023-02-16 Sheng-Chieh Lin , Akari Asai , Minghan Li , Barlas Oguz , Jimmy Lin , Yashar Mehdad , Wen-tau Yih , Xilun Chen

A supervised ranking model, despite its advantage of being effective, usually involves complex processing - typically multiple stages of task-specific pre-training and fine-tuning. This has motivated researchers to explore simpler pipelines…

信息检索 · 计算机科学 2024-10-08 Nilanjan Sinhababu , Andrew Parry , Debasis Ganguly , Debasis Samanta , Pabitra Mitra

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…

计算与语言 · 计算机科学 2022-11-28 Yue Yu , Chenyan Xiong , Si Sun , Chao Zhang , Arnold Overwijk

Detecting pre-training data in Large Language Models (LLMs) is crucial for auditing data privacy and copyright compliance, yet it remains challenging in black-box, zero-shot settings where computational resources and training data are…

计算与语言 · 计算机科学 2026-01-13 Jinhan Liu , Yibo Yang , Ruiying Lu , Piotr Piekos , Yimeng Chen , Peng Wang , Dandan Guo

Zero-shot recognition (ZSR) deals with the problem of predicting class labels for target domain instances based on source domain side information (e.g. attributes) of unseen classes. We formulate ZSR as a binary prediction problem. Our…

计算机视觉与模式识别 · 计算机科学 2016-08-22 Ziming Zhang , Venkatesh Saligrama

In this work, we propose a simple method that applies a large language model (LLM) to large-scale retrieval in zero-shot scenarios. Our method, the Language language model as Retriever (LameR), is built upon no other neural models but an…

计算与语言 · 计算机科学 2023-08-03 Tao Shen , Guodong Long , Xiubo Geng , Chongyang Tao , Tianyi Zhou , Daxin Jiang

While billions of non-English speaking users rely on search engines every day, the problem of ad-hoc information retrieval is rarely studied for non-English languages. This is primarily due to a lack of data set that are suitable to train…

信息检索 · 计算机科学 2020-05-01 Sean MacAvaney , Luca Soldaini , Nazli Goharian

Dense Retrieval (DR) reaches state-of-the-art results in first-stage retrieval, but little is known about the mechanisms that contribute to its success. Therefore, in this work, we conduct an interpretation study of recently proposed DR…

信息检索 · 计算机科学 2021-11-30 Jingtao Zhan , Jiaxin Mao , Yiqun Liu , Jiafeng Guo , Min Zhang , Shaoping Ma

Zero-shot reinforcement learning (RL) promises to provide agents that can perform any task in an environment after an offline, reward-free pre-training phase. Methods leveraging successor measures and successor features have shown strong…

机器学习 · 计算机科学 2024-10-31 Scott Jeen , Tom Bewley , Jonathan M. Cullen

Neural document retrievers, including dense passage retrieval (DPR), have outperformed classical lexical-matching retrievers, such as BM25, when fine-tuned and tested on specific question-answering datasets. However, it has been shown that…

计算与语言 · 计算机科学 2023-03-10 Yasuto Hoshi , Daisuke Miyashita , Yasuhiro Morioka , Youyang Ng , Osamu Torii , Jun Deguchi

In this paper, different techniques of few-shot, zero-shot, and regular object detection have been investigated. The need for few-shot learning and zero-shot learning techniques is crucial and arises from the limitations and challenges in…

计算机视觉与模式识别 · 计算机科学 2024-06-25 Maged Badawi , Mohammedyahia Abushanab , Sheethal Bhat , Andreas Maier

The effectiveness of multi-stage text retrieval has been solidly demonstrated since before the era of pre-trained language models. However, most existing studies utilize models that predate recent advances in large language models (LLMs).…

信息检索 · 计算机科学 2023-10-13 Xueguang Ma , Liang Wang , Nan Yang , Furu Wei , Jimmy Lin

Zero-shot learning deals with the ability to recognize objects without any visual training sample. To counterbalance this lack of visual data, each class to recognize is associated with a semantic prototype that reflects the essential…

计算机视觉与模式识别 · 计算机科学 2021-02-08 Yannick Le Cacheux , Hervé Le Borgne , Michel Crucianu

How can we extend a pre-trained model to many language understanding tasks, without labeled or additional unlabeled data? Pre-trained language models (PLMs) have been effective for a wide range of NLP tasks. However, existing approaches…

计算与语言 · 计算机科学 2023-05-29 Xuandong Zhao , Siqi Ouyang , Zhiguo Yu , Ming Wu , Lei Li

Preference-based reinforcement learning (RL) has emerged as a new field in robot learning, where humans play a pivotal role in shaping robot behavior by expressing preferences on different sequences of state-action pairs. However,…

机器人学 · 计算机科学 2024-02-26 Simon Holk , Daniel Marta , Iolanda Leite

Dense Retrieval (DR) models have proven to be effective for Document Retrieval and Information Grounding tasks. Usually, these models are trained and optimized for improving the relevance of top-ranked documents for a given query. Previous…

信息检索 · 计算机科学 2025-08-12 Stefano Campese , Alessandro Moschitti , Ivano Lauriola

Existing neural information retrieval (IR) models have often been studied in homogeneous and narrow settings, which has considerably limited insights into their out-of-distribution (OOD) generalization capabilities. To address this, and to…

信息检索 · 计算机科学 2021-10-22 Nandan Thakur , Nils Reimers , Andreas Rücklé , Abhishek Srivastava , Iryna Gurevych

Vision-language models trained on large, randomly collected data had significant impact in many areas since they appeared. But as they show great performance in various fields, such as image-text-retrieval, their inner workings are still…

计算机视觉与模式识别 · 计算机科学 2022-09-15 Felix Vogel , Nina Shvetsova , Leonid Karlinsky , Hilde Kuehne

A popular approach to creating a zero-shot cross-language retrieval model is to substitute a monolingual pretrained language model in the retrieval model with a multilingual pretrained language model such as Multilingual BERT. This…

信息检索 · 计算机科学 2022-12-21 Eugene Yang , Suraj Nair , Dawn Lawrie , James Mayfield , Douglas W. Oard

Context: Requirements engineering researchers have been experimenting with machine learning and deep learning approaches for a range of RE tasks, such as requirements classification, requirements tracing, ambiguity detection, and modelling.…

软件工程 · 计算机科学 2023-03-17 Waad Alhoshan , Alessio Ferrari , Liping Zhao