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In the context of label-efficient learning on video data, the distillation method and the structural design of the teacher-student architecture have a significant impact on knowledge distillation. However, the relationship between these…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Chao Wang , Zheng Tang

For training a video-based action recognition model that accepts multi-view video, annotating frame-level labels is tedious and difficult. However, it is relatively easy to annotate sequence-level labels. This kind of coarse annotations are…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Vijay John , Yasutomo Kawanishi

Adversarial learning is a widely used technique in fair representation learning to remove the biases on sensitive attributes from data representations. It usually requires to incorporate the sensitive attribute labels as prediction targets.…

机器学习 · 计算机科学 2022-04-04 Chuhan Wu , Fangzhao Wu , Tao Qi , Yongfeng Huang

We focus on the problem of learning distributed representations for entity search queries, named entities, and their short descriptions. With our representation learning models, the entity search query, named entity and description can be…

计算与语言 · 计算机科学 2017-01-17 Shijia E , Yang Xiang , Mohan Zhang

We study generalization properties of weakly supervised learning. That is, learning where only a few "strong" labels (the actual target of our prediction) are present but many more "weak" labels are available. In particular, we show that…

机器学习 · 计算机科学 2020-02-21 Joshua Robinson , Stefanie Jegelka , Suvrit Sra

In this paper, we propose a new strategy for the task of named entity recognition (NER). We cast the task as a query-based machine reading comprehension task: e.g., the task of extracting entities with PER is formalized as answering the…

计算与语言 · 计算机科学 2019-11-05 Yuxian Meng , Xiaoya Li , Zijun Sun , Jiwei Li

Training a Fully Convolutional Network (FCN) for semantic segmentation requires a large number of masks with pixel level labelling, which involves a large amount of human labour and time for annotation. In contrast, web images and their…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Tong Shen , Guosheng Lin , Lingqiao Liu , Chunhua Shen , Ian Reid

We propose a method that can leverage unlabeled data to learn a matching model for response selection in retrieval-based chatbots. The method employs a sequence-to-sequence architecture (Seq2Seq) model as a weak annotator to judge the…

计算与语言 · 计算机科学 2018-05-11 Yu Wu , Wei Wu , Zhoujun Li , Ming Zhou

Data quantity and quality are crucial factors for data-driven learning methods. In some target problem domains, there are not many data samples available, which could significantly hinder the learning process. While data from similar…

机器学习 · 计算机科学 2021-09-22 Shichao Xu , Lixu Wang , Yixuan Wang , Qi Zhu

In this paper, we propose a method for training neural networks when we have a large set of data with weak labels and a small amount of data with true labels. In our proposed model, we train two neural networks: a target network, the…

机器学习 · 统计学 2017-12-01 Mostafa Dehghani , Aliaksei Severyn , Sascha Rothe , Jaap Kamps

Large-scale weakly supervised product retrieval is a practically useful yet computationally challenging problem. This paper introduces a novel solution for the eBay Visual Search Challenge (eProduct) held at the Ninth Workshop on…

计算机视觉与模式识别 · 计算机科学 2022-08-02 Xiao Han , Kam Woh Ng , Sauradip Nag , Zhiyu Qu

Cross-lingual named entity recognition (NER) aims to train an NER system that generalizes well to a target language by leveraging labeled data in a given source language. Previous work alleviates the data scarcity problem by translating…

计算与语言 · 计算机科学 2023-05-25 Tingting Ma , Qianhui Wu , Huiqiang Jiang , Börje F. Karlsson , Tiejun Zhao , Chin-Yew Lin

Product attribute value extraction involves identifying the specific values associated with various attributes from a product profile. While existing methods often prioritize the development of effective models to improve extraction…

计算与语言 · 计算机科学 2024-06-12 Li Yang , Qifan Wang , Jianfeng Chi , Jiahao Liu , Jingang Wang , Fuli Feng , Zenglin Xu , Yi Fang , Lifu Huang , Dongfang Liu

We present a neural framework for opinion summarization from online product reviews which is knowledge-lean and only requires light supervision (e.g., in the form of product domain labels and user-provided ratings). Our method combines two…

计算与语言 · 计算机科学 2018-08-28 Stefanos Angelidis , Mirella Lapata

A classical vector retrieval problem typically considers a \emph{single} query embedding vector as input and retrieves the most similar embedding vectors from a vector database. However, complex reasoning and retrieval tasks frequently…

Vector quantization is a fundamental operation for data compression and vector search. To obtain high accuracy, multi-codebook methods represent each vector using codewords across several codebooks. Residual quantization (RQ) is one such…

机器学习 · 计算机科学 2024-05-22 Iris A. M. Huijben , Matthijs Douze , Matthew Muckley , Ruud J. G. van Sloun , Jakob Verbeek

Anomaly detection in decision-making sequences is a challenging problem due to the complexity of normality representation learning and the sequential nature of the task. Most existing methods based on Reinforcement Learning (RL) are…

机器学习 · 计算机科学 2024-02-08 Chen Wang , Sarah Erfani , Tansu Alpcan , Christopher Leckie

The review-based recommender systems are commonly utilized to measure users preferences towards different items. In this paper, we focus on addressing three main problems existing in the review-based methods. Firstly, these methods suffer…

信息检索 · 计算机科学 2020-12-14 Yuexin Wu , Tianyu Gao , Sihao Wang , Zhongmin Xiong

Some of the most severe bottlenecks preventing widespread development of machine learning models for human behavior include a dearth of labeled training data and difficulty of acquiring high quality labels. Active learning is a paradigm for…

Many success stories involving deep neural networks are instances of supervised learning, where available labels power gradient-based learning methods. Creating such labels, however, can be expensive and thus there is increasing interest in…

机器学习 · 计算机科学 2017-11-01 Sebastian Ewert , Mark B. Sandler