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Related papers: Unsupervised Neural Generative Semantic Hashing

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Learning compact representation is vital and challenging for large scale multimedia data. Cross-view/cross-modal hashing for effective binary representation learning has received significant attention with exponentially growing availability…

Computer Vision and Pattern Recognition · Computer Science 2018-04-05 Liu Liu , Hairong Qi

Efficient document retrieval heavily relies on the technique of semantic hashing, which learns a binary code for every document and employs Hamming distance to evaluate document distances. However, existing semantic hashing methods are…

Information Retrieval · Computer Science 2022-11-01 Zexuan Qiu , Qinliang Su , Jianxing Yu , Shijing Si

Many recent methods of zero-shot learning (ZSL) attempt to utilize generative model to generate the unseen visual samples from semantic descriptions and random noise. Therefore, the ZSL problem becomes a traditional supervised…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Shibing Xu , Zishu Gao , Guojun Xie

Retrieval-Augmented Generation (RAG) improves factual grounding in large language models but suffers from substantial latency due to synchronous retrieval. While recent work explores asynchronous retrieval, existing approaches rely on…

Computation and Language · Computer Science 2026-05-19 Wuyang Zhang , Shichao Pei

Chunking information is a key step in Retrieval Augmented Generation (RAG). Current research primarily centers on paragraph-level chunking. This approach treats all texts as equal and neglects the information contained in the structure of…

Computation and Language · Computer Science 2024-03-19 Antonio Jimeno Yepes , Yao You , Jan Milczek , Sebastian Laverde , Renyu Li

Hashing, or learning binary embeddings of data, is frequently used in nearest neighbor retrieval. In this paper, we develop learning to rank formulations for hashing, aimed at directly optimizing ranking-based evaluation metrics such as…

Machine Learning · Statistics 2018-10-11 Kun He , Fatih Cakir , Sarah Adel Bargal , Stan Sclaroff

Unsupervised parsing, also known as grammar induction, aims to infer syntactic structure from raw text. Recently, binary representation has exhibited remarkable information-preserving capabilities at both lexicon and syntax levels. In this…

Computation and Language · Computer Science 2024-10-08 Yiran Wang , Masao Utiyama

Typical retrieval systems have three requirements: a) Accurate retrieval i.e., the method should have high precision, b) Diverse retrieval, i.e., the obtained set of points should be diverse, c) Retrieval time should be small. However, most…

Information Retrieval · Computer Science 2020-08-25 Vidyadhar Rao , Prateek Jain , C. V Jawahar

This work proposes deep network models and learning algorithms for unsupervised and supervised binary hashing. Our novel network design constrains one hidden layer to directly output the binary codes. This addresses a challenging issue in…

Computer Vision and Pattern Recognition · Computer Science 2016-07-19 Thanh-Toan Do , Anh-Dzung Doan , Ngai-Man Cheung

In the past few decades, there has been an explosion in the amount of available data produced from various sources with different topics. The availability of this enormous data necessitates us to adopt effective computational tools to…

Computation and Language · Computer Science 2022-12-20 Mina Samizadeh

Self-Supervised Video Hashing (SSVH) compresses videos into hash codes for efficient indexing and retrieval using unlabeled training videos. Existing approaches rely on random frame sampling to learn video features and treat all frames…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Niu Lian , Jun Li , Jinpeng Wang , Ruisheng Luo , Yaowei Wang , Shu-Tao Xia , Bin Chen

In this paper, we propose a novel hash learning approach that has the following main distinguishing features, when compared to past frameworks. First, the codewords are utilized in the Hamming space as ancillary techniques to accomplish its…

Machine Learning · Computer Science 2019-02-26 Yinjie Huang , Michael Georgiopoulos , Georgios C. Anagnostopoulos

Semantic parsing is the problem of deriving machine interpretable meaning representations from natural language utterances. Neural models with encoder-decoder architectures have recently achieved substantial improvements over traditional…

Computation and Language · Computer Science 2019-09-30 Huseyin A. Inan , Gaurav Singh Tomar , Huapu Pan

Recently, similarity-preserving hashing methods have been extensively studied for large-scale image retrieval. Compared with unsupervised hashing, supervised hashing methods for labeled data have usually better performance by utilizing…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Rong-Cheng Tu , Xian-Ling Mao , Bo-Si Feng , Bing-Bing Bian , Yu-shu Ying

Symbolic regression encompasses a family of search algorithms that aim to discover the best fitting function for a set of data without requiring an a priori specification of the model structure. The most successful and commonly used…

Neural and Evolutionary Computing · Computer Science 2025-08-20 Bogdan Burlacu

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…

Information Retrieval · Computer Science 2025-03-10 Kunal Sawarkar , Abhilasha Mangal , Shivam Raj Solanki

In this paper we propose the application of feature hashing to create word embeddings for natural language processing. Feature hashing has been used successfully to create document vectors in related tasks like document classification. In…

Computation and Language · Computer Science 2017-04-18 Luis Argerich , Joaquín Torré Zaffaroni , Matías J Cano

Hashing techniques have been applied broadly in retrieval tasks due to their low storage requirements and high speed of processing. Many hashing methods based on a single view have been extensively studied for information retrieval.…

Machine Learning · Computer Science 2020-01-07 Jun Yu , Xiao-Jun Wu , Josef Kittler

Multi-modal hashing methods have gained popularity due to their fast speed and low storage requirements. Among them, the supervised methods demonstrate better performance by utilizing labels as supervisory signals compared with unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Jin-Yu Liu , Xian-Ling Mao , Tian-Yi Che , Rong-Cheng Tu

Unsupervised sentence representation learning is one of the fundamental problems in natural language processing with various downstream applications. Recently, contrastive learning has been widely adopted which derives high-quality sentence…

Computation and Language · Computer Science 2023-05-29 Jiduan Liu , Jiahao Liu , Qifan Wang , Jingang Wang , Wei Wu , Yunsen Xian , Dongyan Zhao , Kai Chen , Rui Yan
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