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Dual-encoder (DE) models are widely used in retrieval tasks, most commonly studied on open QA benchmarks that are often characterized by multi-class and limited training data. In contrast, their performance in multi-label and data-rich…

机器学习 · 计算机科学 2024-03-19 Nilesh Gupta , Devvrit Khatri , Ankit S Rawat , Srinadh Bhojanapalli , Prateek Jain , Inderjit Dhillon

Distantly-Supervised Named Entity Recognition (DS-NER) effectively alleviates the data scarcity problem in NER by automatically generating training samples. Unfortunately, the distant supervision may induce noisy labels, thus undermining…

计算与语言 · 计算机科学 2022-12-14 Xiaoye Qu , Jun Zeng , Daizong Liu , Zhefeng Wang , Baoxing Huai , Pan Zhou

This paper investigates a phenomenon where query-based object detectors mispredict at the last decoding stage while predicting correctly at an intermediate stage. We review the training process and attribute the overlooked phenomenon to two…

计算机视觉与模式识别 · 计算机科学 2023-03-23 Fangyi Chen , Han Zhang , Kai Hu , Yu-kai Huang , Chenchen Zhu , Marios Savvides

Object detection has advanced significantly with Detection Transformers (DETRs). However, these models are computationally demanding, posing challenges for deployment in resource-constrained environments (e.g., self-driving cars). Knowledge…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Qizhen Lan , Qing Tian

Tool retrieval over large API catalogs is a core bottleneck for LLM agents: user queries arrive in colloquial, often underspecified language, while the catalog uses technical API vocabulary that no fixed encoder can bridge on its own. The…

人工智能 · 计算机科学 2026-05-29 Vaishali Senthil , Ashutosh Hathidara , Sebastian Schreiber

Current collaborative perception methods often rely on fully annotated datasets, which can be expensive to obtain in practical situations. To reduce annotation costs, some works adopt sparsely supervised learning techniques and generate…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Yushan Han , Hui Zhang , Honglei Zhang , Jing Wang , Yidong Li

Convolutional Neural Networks (CNN) have dominated the field of detection ever since the success of AlexNet in ImageNet classification [12]. With the sweeping reform of Transformers [27] in natural language processing, Carion et al. [2]…

计算机视觉与模式识别 · 计算机科学 2022-06-08 Chi Zhang , Lijuan Liu , Xiaoxue Zang , Frederick Liu , Hao Zhang , Xinying Song , Jindong Chen

Based on analyzing the character of cascaded decoder architecture commonly adopted in existing DETR-like models, this paper proposes a new decoder architecture. The cascaded decoder architecture constrains object queries to update in the…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Zhixiong Nan , Xianghong Li , Jifeng Dai , Tao Xiang

Stereo needs features that preserve fine cross view correspondence rather than only semantic similarity. Recent self supervised vision models transfer well, but they are not built for this goal, and geometry focused methods often rely on a…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Haokun Zhou

Ensemble models are widely used to solve complex tasks by their decomposition into multiple simpler tasks, each one solved locally by a single member of the ensemble. Decoding of error-correction codes is a hard problem due to the curse of…

信息论 · 计算机科学 2020-05-12 Tomer Raviv , Nir Raviv , Yair Be'ery

Despite significant progress toward super resolving more realistic images by deeper convolutional neural networks (CNNs), reconstructing fine and natural textures still remains a challenging problem. Recent works on single image super…

计算机视觉与模式识别 · 计算机科学 2019-07-30 Mohammad Saeed Rad , Behzad Bozorgtabar , Claudiu Musat , Urs-Viktor Marti , Max Basler , Hazim Kemal Ekenel , Jean-Philippe Thiran

Generalizing decentralized multi-robot cooperative transport across objects with diverse shapes and physical properties remains a fundamental challenge. Under decentralized execution, two key challenges arise: object-dependent…

The exponential growth of user-generated movie reviews on digital platforms has made accurate text sentiment classification a cornerstone task in natural language processing. Traditional models, including standard BERT and recurrent…

计算与语言 · 计算机科学 2026-04-14 Qingyang Li

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…

信息检索 · 计算机科学 2023-06-07 Yibin Lei , Liang Ding , Yu Cao , Changtong Zan , Andrew Yates , Dacheng Tao

Federated Learning is a well-researched approach for collaboratively training machine learning models across decentralized data while preserving privacy. However, integrating Homomorphic Encryption to ensure data confidentiality introduces…

密码学与安全 · 计算机科学 2024-09-13 Jiaxang Tang , Zeshan Fayyaz , Mohammad A. Salahuddin , Raouf Boutaba , Zhi-Li Zhang , Ali Anwar

Anomaly detection can be conceived either through generative modelling of regular training data or by discriminating with respect to negative training data. These two approaches exhibit different failure modes. Consequently, hybrid…

计算机视觉与模式识别 · 计算机科学 2022-07-07 Matej Grcić , Petra Bevandić , Siniša Šegvić

Dense retrieval systems increasingly need to handle complex queries. In many realistic settings, users express intent through long instructions or task-specific descriptions, while target documents remain relatively simple and static. This…

信息检索 · 计算机科学 2026-04-07 Seiji Maekawa , Moin Aminnaseri , Pouya Pezeshkpour , Estevam Hruschka

Communication bottlenecks and the presence of stragglers pose significant challenges in distributed learning (DL). To deal with these challenges, recent advances leverage unbiased compression functions and gradient coding. However, the…

分布式、并行与集群计算 · 计算机科学 2026-03-18 Chengxi Li , Ming Xiao , Mikael Skoglund

Recently, end-to-end object detectors have gained significant attention from the research community due to their outstanding performance. However, DETR typically relies on supervised pretraining of the backbone on ImageNet, which limits the…

计算机视觉与模式识别 · 计算机科学 2023-09-26 Haodong Ouyang

The astounding performance of transformers in natural language processing (NLP) has motivated researchers to explore their applications in computer vision tasks. DEtection TRansformer (DETR) introduces transformers to object detection tasks…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Tahira Shehzadi , Khurram Azeem Hashmi , Didier Stricker , Muhammad Zeshan Afzal