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This paper addresses the problem of learning word image representations: given the cropped image of a word, we are interested in finding a descriptive, robust, and compact fixed-length representation. Machine learning techniques can then be…

Computer Vision and Pattern Recognition · Computer Science 2014-11-17 Albert Gordo

Large Vision Language Models (LVLMs) have made remarkable progress, enabling sophisticated vision-language interaction and dialogue applications. However, existing benchmarks primarily focus on reasoning tasks, often neglecting fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Cong Pang , Hongtao Yu , Zixuan Chen , Lewei Lu , Xin Lou

In this paper, we introduce iBoW-LCD, a novel appearance-based loop closure detection method. The presented approach makes use of an incremental Bag-of-Words (BoW) scheme based on binary descriptors to retrieve previously seen similar…

Robotics · Computer Science 2018-07-19 Emilio Garcia-Fidalgo , Alberto Ortiz

Machine learning model bias can arise from dataset composition: correlated sensitive features can distort the downstream classification model's decision boundary and lead to performance differences along these features. Existing de-biasing…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Miao Zhang , Zee fryer , Ben Colman , Ali Shahriyari , Gaurav Bharaj

State-of-the-art weakly supervised text classification methods, while significantly reduced the required human supervision, still requires the supervision to cover all the classes of interest. This is never easy to meet in practice when…

Computation and Language · Computer Science 2023-11-27 Tianle Wang , Zihan Wang , Weitang Liu , Jingbo Shang

Multimodal pre-trained models, such as CLIP, are popular for zero-shot classification due to their open-vocabulary flexibility and high performance. However, vision-language models, which compute similarity scores between images and class…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Mia Chiquier , Utkarsh Mall , Carl Vondrick

Paraphrase generation is a longstanding important problem in natural language processing. In addition, recent progress in deep generative models has shown promising results on discrete latent variables for text generation. Inspired by…

Computation and Language · Computer Science 2020-01-08 Yao Fu , Yansong Feng , John P. Cunningham

Convolutional Neural Networks (CNNs) are well established models capable of achieving state-of-the-art classification accuracy for various computer vision tasks. However, they are becoming increasingly larger, using millions of parameters,…

Computer Vision and Pattern Recognition · Computer Science 2017-07-27 Nikolaos Passalis , Anastasios Tefas

We look into the task of \emph{generalizing} word embeddings: given a set of pre-trained word vectors over a finite vocabulary, the goal is to predict embedding vectors for out-of-vocabulary words, \emph{without} extra contextual…

Computation and Language · Computer Science 2020-10-22 Zhao Jinman , Shawn Zhong , Xiaomin Zhang , Yingyu Liang

Vector-quantized local features frequently used in bag-of-visual-words approaches are the backbone of popular visual recognition systems due to both their simplicity and their performance. Despite their success, bag-of-words-histograms…

Computer Vision and Pattern Recognition · Computer Science 2014-08-21 Alexander Freytag , Johannes Rühle , Paul Bodesheim , Erik Rodner , Joachim Denzler

Word vector embeddings have been shown to contain and amplify biases in data they are extracted from. Consequently, many techniques have been proposed to identify, mitigate, and attenuate these biases in word representations. In this paper,…

Computation and Language · Computer Science 2021-04-08 Archit Rathore , Sunipa Dev , Jeff M. Phillips , Vivek Srikumar , Yan Zheng , Chin-Chia Michael Yeh , Junpeng Wang , Wei Zhang , Bei Wang

Clearly explaining a rationale for a classification decision to an end-user can be as important as the decision itself. Existing approaches for deep visual recognition are generally opaque and do not output any justification text;…

Computer Vision and Pattern Recognition · Computer Science 2016-03-29 Lisa Anne Hendricks , Zeynep Akata , Marcus Rohrbach , Jeff Donahue , Bernt Schiele , Trevor Darrell

The bag-of-words model is a standard representation of text for many linear classifier learners. In many problem domains, linear classifiers are preferred over more complex models due to their efficiency, robustness and interpretability,…

Computation and Language · Computer Science 2017-09-19 Bradford Heap , Michael Bain , Wayne Wobcke , Alfred Krzywicki , Susanne Schmeidl

This paper presents a novel approach for automatically generating image descriptions: visual detectors, language models, and multimodal similarity models learnt directly from a dataset of image captions. We use multiple instance learning to…

Computer Vision and Pattern Recognition · Computer Science 2016-02-22 Hao Fang , Saurabh Gupta , Forrest Iandola , Rupesh Srivastava , Li Deng , Piotr Dollár , Jianfeng Gao , Xiaodong He , Margaret Mitchell , John C. Platt , C. Lawrence Zitnick , Geoffrey Zweig

To measure the similarity of two documents in the bag-of-words (BoW) vector representation, different term weighting schemes are used to improve the performance of cosine similarity---the most widely used inter-document similarity measure…

Information Retrieval · Computer Science 2019-02-12 Sunil Aryal , Kai Ming Ting , Takashi Washio , Gholamreza Haffari

Text-to-image retrieval is a fundamental task in vision-language learning, yet in real-world scenarios it is often challenged by short and underspecified user queries. Such queries are typically only one or two words long, rendering them…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Jianglin Lu , Simon Jenni , Kushal Kafle , Jing Shi , Handong Zhao , Yun Fu

Extensive research efforts have been dedicated to 3D model retrieval in recent decades. Recently, view-based methods have attracted much research attention due to the high discriminative property of multi-views for 3D object representation.…

Computer Vision and Pattern Recognition · Computer Science 2012-08-20 Qiong Liu

Image captioning evaluation remains a significant challenge, as vision-language models evolve toward more challenging capabilities such as generating long-form and context-rich descriptions. State-of-the-art evaluation metrics involve…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Gonçalo Gomes , Bruno Martins , Chrysoula Zerva

Image captioning is a research area of immense importance, aiming to generate natural language descriptions for visual content in the form of still images. The advent of deep learning and more recently vision-language pre-training…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Taraneh Ghandi , Hamidreza Pourreza , Hamidreza Mahyar

Much of the progress in contemporary NLP has come from learning representations, such as masked language model (MLM) contextual embeddings, that turn challenging problems into simple classification tasks. But how do we quantify and explain…

Computation and Language · Computer Science 2021-09-16 Gregory Yauney , David Mimno