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Neural embeddings are a popular set of methods for representing words, phrases or text as a low dimensional vector (typically 50-500 dimensions). However, it is difficult to interpret these dimensions in a meaningful manner, and creating…

计算与语言 · 计算机科学 2018-01-10 Neil R. Smalheiser , Gary Bonifield

This work introduces composed image retrieval to remote sensing. It allows to query a large image archive by image examples alternated by a textual description, enriching the descriptive power over unimodal queries, either visual or…

计算机视觉与模式识别 · 计算机科学 2024-07-30 Bill Psomas , Ioannis Kakogeorgiou , Nikos Efthymiadis , Giorgos Tolias , Ondrej Chum , Yannis Avrithis , Konstantinos Karantzalos

This paper gives a review and synthesis of methods of evaluating dimensionality reduction techniques. Particular attention is paid to rank-order neighborhood evaluation metrics. A framework is created for exploring dimensionality reduction…

机器学习 · 计算机科学 2019-02-25 Stephen L. France , Ulas Akkucuk

Conventional word embeddings represent words with fixed vectors, which are usually trained based on co-occurrence patterns among words. In doing so, however, the power of such representations is limited, where the same word might be…

计算与语言 · 计算机科学 2020-01-10 Hongming Zhang , Jiaxin Bai , Yan Song , Kun Xu , Changlong Yu , Yangqiu Song , Wilfred Ng , Dong Yu

Recently, numbers of works shows that the performance of neural machine translation (NMT) can be improved to a certain extent with using visual information. However, most of these conclusions are drawn from the analysis of experimental…

计算机视觉与模式识别 · 计算机科学 2022-09-07 ZhenHao Tang , XiaoBing Zhang , Zi Long , XiangHua Fu

We propose a structured approach to the problem of retrieval of images by content and present a description logic that has been devised for the semantic indexing and retrieval of images containing complex objects. As other approaches do, we…

人工智能 · 计算机科学 2011-09-08 E. Di Sciascio , F. M. Donini , M. Mongiello

Among the representation learning, the low-rank representation (LRR) is one of the hot research topics in many fields, especially in image processing and pattern recognition. Although LRR can capture the global structure, the ability of…

计算机视觉与模式识别 · 计算机科学 2018-12-19 Hui Li , Xiao-Jun Wu

Many multimedia information retrieval or machine learning problems require efficient high-dimensional nearest neighbor search techniques. For instance, multimedia objects (images, music or videos) can be represented by high-dimensional…

计算机视觉与模式识别 · 计算机科学 2017-12-11 Fabien André

In this paper a new dictionary learning algorithm for multidimensional data is proposed. Unlike most conventional dictionary learning methods which are derived for dealing with vectors or matrices, our algorithm, named KTSVD, learns a…

机器学习 · 计算机科学 2016-01-01 Zemin Zhang , Shuchin Aeron

Dimension reduction (DR) can transform high-dimensional text embeddings into a 2D visual projection facilitating the exploration of document similarities. However, the projection often lacks connection to the text semantics, due to the…

人机交互 · 计算机科学 2024-09-09 Wei Liu , Chris North , Rebecca Faust

Most speech recognition tasks pertain to mapping words across two modalities: acoustic and orthographic. In this work, we suggest learning encoders that map variable-length, acoustic or phonetic, sequences that represent words into…

机器学习 · 计算机科学 2019-08-02 Mohamed El-Geish

We give a dimensionality reduction procedure to approximate the sum of distances of a given set of $n$ points in $R^d$ to any "shape" that lies in a $k$-dimensional subspace. Here, by "shape" we mean any set of points in $R^d$. Our…

数据结构与算法 · 计算机科学 2021-06-25 Zhili Feng , Praneeth Kacham , David P. Woodruff

This study aims to analyze the benefits of improved multi-scale reasoning for object detection and localization with deep convolutional neural networks. To that end, an efficient and general object detection framework which operates on…

计算机视觉与模式识别 · 计算机科学 2016-07-28 Eshed Ohn-Bar , M. M. Trivedi

In hyperspectral remote sensing data mining, it is important to take into account of both spectral and spatial information, such as the spectral signature, texture feature and morphological property, to improve the performances, e.g., the…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Lefei Zhang , Qian Zhang , Bo Du , Xin Huang , Yuan Yan Tang , Dacheng Tao

Dictionary learning algorithms have been successfully used for both reconstructive and discriminative tasks, where an input signal is represented with a sparse linear combination of dictionary atoms. While these methods are mostly developed…

机器学习 · 统计学 2016-01-20 Soheil Bahrampour , Nasser M. Nasrabadi , Asok Ray , W. Kenneth Jenkins

During the last decades, we have witnessed a surge of interests of learning a low-dimensional space with discriminative information from one single view. Even though most of them can achieve satisfactory performance in some certain…

机器学习 · 计算机科学 2019-05-21 Lin Feng , Xiangzhu Meng , Huibing Wang

Multimodal representations that enable cross-modal retrieval are widely used. However, these often lack interpretability making it difficult to explain the retrieved results. Solutions such as learning sparse disentangled representations…

信息检索 · 计算机科学 2025-06-25 Prachi J , Sumit Bhatia , Srikanta Bedathur

We present a novel compact image descriptor for large scale image search. Our proposed descriptor - Geometric VLAD (gVLAD) is an extension of VLAD (Vector of Locally Aggregated Descriptors) that incorporates weak geometry information into…

计算机视觉与模式识别 · 计算机科学 2014-03-18 Zixuan Wang , Wei Di , Anurag Bhardwaj , Vignesh Jagadeesh , Robinson Piramuthu

Recent work has begun exploring neural acoustic word embeddings---fixed-dimensional vector representations of arbitrary-length speech segments corresponding to words. Such embeddings are applicable to speech retrieval and recognition tasks,…

计算与语言 · 计算机科学 2017-03-14 Wanjia He , Weiran Wang , Karen Livescu

High-dimensional big data appears in many research fields such as image recognition, biology and collaborative filtering. Often, the exploration of such data by classic algorithms is encountered with difficulties due to `curse of…

机器学习 · 计算机科学 2016-07-13 Amit Bermanis , Aviv Rotbart , Moshe Salhov , Amir Averbuch