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Retrieval-Augmented Generation (RAG) is a prevalent approach to infuse a private knowledge base of documents with Large Language Models (LLM) to build Generative Q\&A (Question-Answering) systems. However, RAG accuracy becomes increasingly…

信息检索 · 计算机科学 2025-03-10 Kunal Sawarkar , Abhilasha Mangal , Shivam Raj Solanki

Deep learning demands a huge amount of well-labeled data to train the network parameters. How to use the least amount of labeled data to obtain the desired classification accuracy is of great practical significance, because for many…

机器学习 · 计算机科学 2019-12-20 Xiao Han , Zihao Wang , Enmei Tu , Gunnam Suryanarayana , Jie Yang

Self-supervised learning systems have gained significant attention in recent years by leveraging clustering-based pseudo-labels to provide supervision without the need for human annotations. However, the noise in these pseudo-labels caused…

计算机视觉与模式识别 · 计算机科学 2024-10-21 Zia-ur-Rehman , Arif Mahmood , Wenxiong Kang

We present a new framework of applying deep neural networks (DNN) to devise a universal discrete denoiser. Unlike other approaches that utilize supervised learning for denoising, we do not require any additional training data. In such…

机器学习 · 计算机科学 2016-08-25 Taesup Moon , Seonwoo Min , Byunghan Lee , Sungroh Yoon

Paraphrasing is expressing the meaning of an input sentence in different wording while maintaining fluency (i.e., grammatical and syntactical correctness). Most existing work on paraphrasing use supervised models that are limited to…

计算与语言 · 计算机科学 2020-07-08 A. B. Siddique , Samet Oymak , Vagelis Hristidis

Self-supervised learning (SSL) has been able to leverage unlabeled data to boost the performance of automatic speech recognition (ASR) models when we have access to only a small amount of transcribed speech data. However, this raises the…

音频与语音处理 · 电气工程与系统科学 2022-12-06 Reem Gody , David Harwath

BERT is inefficient for sentence-pair tasks such as clustering or semantic search as it needs to evaluate combinatorially many sentence pairs which is very time-consuming. Sentence BERT (SBERT) attempted to solve this challenge by learning…

计算与语言 · 计算机科学 2021-02-08 Yan Zhang , Ruidan He , Zuozhu Liu , Kwan Hui Lim , Lidong Bing

Semi-supervised multi-label learning (SSMLL) is a powerful framework for leveraging unlabeled data to reduce the expensive cost of collecting precise multi-label annotations. Unlike semi-supervised learning, one cannot select the most…

机器学习 · 计算机科学 2024-12-30 Jia-Hao Xiao , Ming-Kun Xie , Heng-Bo Fan , Gang Niu , Masashi Sugiyama , Sheng-Jun Huang

Data-driven based approaches, in spite of great success in many tasks, have poor generalization when applied to unseen image domains, and require expensive cost of annotation especially for dense pixel prediction tasks such as semantic…

计算机视觉与模式识别 · 计算机科学 2021-03-09 Shuaijun Chen , Xu Jia , Jianzhong He , Yongjie Shi , Jianzhuang Liu

Federated Learning is a distributed machine learning paradigm dealing with decentralized and personal datasets. Since data reside on devices like smartphones and virtual assistants, labeling is entrusted to the clients, or labels are…

机器学习 · 计算机科学 2022-02-28 Vasileios Tsouvalas , Aaqib Saeed , Tanir Ozcelebi

Prior works in cross-lingual named entity recognition (NER) with no/little labeled data fall into two primary categories: model transfer based and data transfer based methods. In this paper we find that both method types can complement each…

计算与语言 · 计算机科学 2020-07-16 Qianhui Wu , Zijia Lin , Börje F. Karlsson , Biqing Huang , Jian-Guang Lou

Disentangled representations have recently been shown to improve fairness, data efficiency and generalisation in simple supervised and reinforcement learning tasks. To extend the benefits of disentangled representations to more complex…

We present DR.DECR (Dense Retrieval with Distillation-Enhanced Cross-Lingual Representation), a new cross-lingual information retrieval (CLIR) system trained using multi-stage knowledge distillation (KD). The teacher of DR.DECR relies on a…

计算与语言 · 计算机科学 2022-08-02 Yulong Li , Martin Franz , Md Arafat Sultan , Bhavani Iyer , Young-Suk Lee , Avirup Sil

The key challenge of unsupervised vehicle re-identification (Re-ID) is learning discriminative features from unlabelled vehicle images. Numerous methods using domain adaptation have achieved outstanding performance, but those methods still…

计算机视觉与模式识别 · 计算机科学 2021-03-04 Jongmin Yu , Hyeontaek Oh

Learning from fully-unlabeled data is challenging in Multimedia Forensics problems, such as Person Re-Identification and Text Authorship Attribution. Recent self-supervised learning methods have shown to be effective when dealing with…

计算机视觉与模式识别 · 计算机科学 2023-07-03 Gabriel Bertocco , Antônio Theophilo , Fernanda Andaló , Anderson Rocha

Deep neural networks have proven to be highly effective when large amounts of data with clean labels are available. However, their performance degrades when training data contains noisy labels, leading to poor generalization on the test…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Fahimeh Fooladgar , Minh Nguyen Nhat To , Parvin Mousavi , Purang Abolmaesumi

Document-level relation extraction (DocRE) aims to infer complex semantic relations among entities in a document. Distant supervision (DS) is able to generate massive auto-labeled data, which can improve DocRE performance. Recent works…

计算与语言 · 计算机科学 2023-05-29 Qi Sun , Kun Huang , Xiaocui Yang , Pengfei Hong , Kun Zhang , Soujanya Poria

Relation extraction is an important task in structuring content of text data, and becomes especially challenging when learning with weak supervision---where only a limited number of labeled sentences are given and a large number of…

计算与语言 · 计算机科学 2019-02-26 Hongtao Lin , Jun Yan , Meng Qu , Xiang Ren

Multilingual Word Embeddings (MWEs) represent words from multiple languages in a single distributional vector space. Unsupervised MWE (UMWE) methods acquire multilingual embeddings without cross-lingual supervision, which is a significant…

计算与语言 · 计算机科学 2018-09-07 Xilun Chen , Claire Cardie

Recent supervised multi-view depth estimation networks have achieved promising results. Similar to all supervised approaches, these networks require ground-truth data during training. However, collecting a large amount of multi-view depth…

计算机视觉与模式识别 · 计算机科学 2021-04-08 Jiayu Yang , Jose M. Alvarez , Miaomiao Liu