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For challenging machine learning problems such as zero-shot learning and fine-grained categorization, embedding learning is the machinery of choice because of its ability to learn generic notions of similarity, as opposed to class-specific…

计算机视觉与模式识别 · 计算机科学 2019-12-19 Ujjal Kr Dutta , Mehrtash Harandi , Chandra Sekhar Chellu

Universal multimodal embedding models are foundational to various tasks. Existing approaches typically employ in-batch negative mining by measuring the similarity of query-candidate pairs. However, these methods often struggle to capture…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Tiancheng Gu , Kaicheng Yang , Kaichen Zhang , Xiang An , Ziyong Feng , Yueyi Zhang , Weidong Cai , Jiankang Deng , Lidong Bing

Learning low-dimensional representations from multi-view relational data is challenging when underlying geometries differ across views. We propose Bary-GWMDS, a Gromov-Wasserstein-based method that operates directly on distance matrices to…

While the celebrated Word2Vec technique yields semantically rich representations for individual words, there has been relatively less success in extending to generate unsupervised sentences or documents embeddings. Recent work has…

Word embedding, a high-dimensional (HD) numerical representation of words generated by machine learning models, has been used for different natural language processing tasks, e.g., translation between two languages. Recently, there has been…

人机交互 · 计算机科学 2024-03-26 Haoyu Li , Junpeng Wang , Yan Zheng , Liang Wang , Wei Zhang , Han-Wei Shen

We consider the problem of distributed estimation of an unknown deterministic scalar parameter (the target signal) in a wireless sensor network (WSN), where each sensor receives a single snapshot of the field. We assume that the observation…

信息论 · 计算机科学 2015-10-09 Qing Zhou , Di Li , Soummya Kar , Lauren Huie , H. Vincent Poor , Shuguang Cui

Pre-trained word embeddings encode general word semantics and lexical regularities of natural language, and have proven useful across many NLP tasks, including word sense disambiguation, machine translation, and sentiment analysis, to name…

机器学习 · 计算机科学 2021-09-22 Alejandro Moreo , Andrea Esuli , Fabrizio Sebastiani

Reversible audio watermarking (RAW) is a promising technique in various applications. To simultaneously meet the demand of achieving high imperceptibility and robustness, this paper proposes a novel RAW scheme based on lattices. The scheme…

密码学与安全 · 计算机科学 2022-09-16 Junren Qin , Shanxiang Lyu , Jiarui Deng , Xingyuan Liang , Shijun Xiang , Hao Chen

Large-scale vision-language models (VLMs) like CLIP successfully find correspondences between images and text. Through the standard deterministic mapping process, an image or a text sample is mapped to a single vector in the embedding…

计算机视觉与模式识别 · 计算机科学 2023-10-02 Uddeshya Upadhyay , Shyamgopal Karthik , Massimiliano Mancini , Zeynep Akata

Dense retrieval calls for discriminative embeddings to represent the semantic relationship between query and document. It may benefit from the using of large language models (LLMs), given LLMs' strong capability on semantic understanding.…

计算与语言 · 计算机科学 2025-11-25 Zheng Liu , Chaofan Li , Shitao Xiao , Yingxia Shao , Defu Lian

Radar sensors are gradually becoming a wide-spread equipment for road vehicles, playing a crucial role in autonomous driving and road safety. The broad adoption of radar sensors increases the chance of interference among sensors from…

信号处理 · 电气工程与系统科学 2021-11-09 Nicolae-Cătălin Ristea , Andrei Anghel , Radu Tudor Ionescu

MLLMs have been successfully applied to multimodal embedding tasks, yet their generative reasoning capabilities remain underutilized. Directly incorporating chain-of-thought reasoning into embedding learning introduces two fundamental…

计算机视觉与模式识别 · 计算机科学 2026-04-08 Yuchi Wang , Haiyang Yu , Weikang Bian , Jiefeng Long , Xiao Liang , Chao Feng , Hongsheng Li

Due to their ease of use and high accuracy, Word2Vec (W2V) word embeddings enjoy great success in the semantic representation of words, sentences, and whole documents as well as for semantic similarity estimation. However, they have the…

计算与语言 · 计算机科学 2024-01-10 Tim vor der Brück , Marc Pouly

Knowledge transfer from a source domain to a different but semantically related target domain has long been an important topic in the context of unsupervised domain adaptation (UDA). A key challenge in this field is establishing a metric…

机器学习 · 计算机科学 2020-07-21 Rongzhe Wei , Fa Zhang , Bo Dong , Qinghua Zheng

In this paper we describe a general probabilistic framework for modeling waveforms such as heartbeats from ECG data. The model is based on segmental hidden Markov models (as used in speech recognition) with the addition of random effects to…

应用统计 · 统计学 2012-07-19 Seyoung Kim , Padhraic Smyth , Stefan Luther

Comparing spoken segments is a central operation to speech processing. Traditional approaches in this area have favored frame-level dynamic programming algorithms, such as dynamic time warping, because they require no supervision, but they…

计算与语言 · 计算机科学 2023-08-30 Shane Settle

Deep learning models extract, before a final classification layer, features or patterns which are key for their unprecedented advantageous performance. However, the process of complex nonlinear feature extraction is not well understood, a…

计算机视觉与模式识别 · 计算机科学 2020-06-18 Roozbeh Yousefzadeh , Furong Huang

The core of cross-modal matching is to accurately measure the similarity between different modalities in a unified representation space. However, compared to textual descriptions of a certain perspective, the visual modality has more…

计算机视觉与模式识别 · 计算机科学 2023-12-22 Wenzhang Wei , Zhipeng Gui , Changguang Wu , Anqi Zhao , Dehua Peng , Huayi Wu

This paper demonstrates that word sense disambiguation (WSD) can improve neural machine translation (NMT) by widening the source context considered when modeling the senses of potentially ambiguous words. We first introduce three adaptive…

计算与语言 · 计算机科学 2018-10-08 Xiao Pu , Nikolaos Pappas , James Henderson , Andrei Popescu-Belis

Graph embedding provides a feasible methodology to conduct pattern classification for graph-structured data by mapping each data into the vectorial space. Various pioneering works are essentially coding method that concentrates on a…

机器学习 · 计算机科学 2022-10-04 Xue Liu , Dan Sun , Xiaobo Cao , Hao Ye , Wei Wei