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The main challenge in on-line handwritten character recognition in Indian lan- guage is the large size of the character set, larger similarity between different characters in the script and the huge variation in writing style. In this paper…

Computer Vision and Pattern Recognition · Computer Science 2014-10-28 Sunil Kumar Kopparapu , Lajish V. L

We present a new subspace-based method to construct probabilistic models for high-dimensional data and highlight its use in anomaly detection. The approach is based on a statistical estimation of probability density using densities of…

Machine Learning · Computer Science 2021-08-16 Cetin Savkli , Catherine Schwartz

High-performance learned image compression codecs require flexible probability models to fit latent representations. Gaussian Mixture Models (GMMs) were proposed to satisfy this demand, but suffer from a significant runtime performance…

Image and Video Processing · Electrical Eng. & Systems 2025-09-24 Shimon Murai , Fangzheng Lin , Jiro Katto

Handwritten character recognition is an active research challenge,especially for Indian scripts. This paper deals with handwritten Malayalam, with a complete set of basic characters, vowel and consonant signs and compound characters that…

Computer Vision and Pattern Recognition · Computer Science 2021-09-07 Jomy John

Multimodal content is crucial for click-through rate (CTR) prediction. However, directly incorporating continuous embeddings from pre-trained models into CTR models yields suboptimal results due to misaligned optimization objectives and…

Information Retrieval · Computer Science 2026-02-16 Ziye Tong , Jiahao Liu , Weimin Zhang , Hongji Ruan , Derick Tang , Zhanpeng Zeng , Qinsong Zeng , Peng Zhang , Tun Lu , Ning Gu

Retrieval of text information from natural scene images and video frames is a challenging task due to its inherent problems like complex character shapes, low resolution, background noise, etc. Available OCR systems often fail to retrieve…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Partha Pratim Roy , Ayan Kumar Bhunia , Avirup Bhattacharyya , Umapada Pal

In this conceptual work, we present Deep Convolutional Gaussian Mixture Models (DCGMMs): a new formulation of deep hierarchical Gaussian Mixture Models (GMMs) that is particularly suitable for describing and generating images. Vanilla…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Alexander Gepperth , Benedikt Pfülb

We propose using a Gaussian Mixture Model (GMM) as reverse transition operator (kernel) within the Denoising Diffusion Implicit Models (DDIM) framework, which is one of the most widely used approaches for accelerated sampling from…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Prasad Gabbur

Gesture typing is a method of typing words on a touch-based keyboard by creating a continuous trace passing through the relevant keys. This work is aimed at developing a keyboard that supports gesture typing in Indic languages. We begin by…

Machine Learning · Computer Science 2022-03-29 Emil Biju , Anirudh Sriram , Mitesh M. Khapra , Pratyush Kumar

Script identification plays a vital role in applications that involve handwriting and document analysis within a multi-script and multi-lingual environment. Moreover, it exhibits a profound connection with human cognition. This paper…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Miguel A. Ferrer , Abhijit Das , Moises Diaz , Aythami Morales , Cristina Carmona-Duarte , Umapada Pal

Recently, word representation has been increasingly focused on for its excellent properties in representing the word semantics. Previous works mainly suffer from the problem of polysemy phenomenon. To address this problem, most of previous…

Computation and Language · Computer Science 2015-11-20 Xinchi Chen , Xipeng Qiu , Jingxiang Jiang , Xuanjing Huang

We consider the problem of estimating differences in two Gaussian graphical models (GGMs) which are known to have similar structure. The GGM structure is encoded in its precision (inverse covariance) matrix. In many applications one is…

Machine Learning · Statistics 2023-12-19 Jitendra K Tugnait

The extraction of keypoints in images is at the basis of many computer vision applications, from localization to 3D reconstruction. Keypoints come with a score permitting to rank them according to their quality. While learned keypoints…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Emanuele Santellani , Martin Zach , Christian Sormann , Mattia Rossi , Andreas Kuhn , Friedrich Fraundorfer

This paper describes a technique of real time head gesture recognition system. The method includes Gaussian mixture model (GMM) accompanied by optical flow algorithm which provided us the required information regarding head movement. The…

Computer Vision and Pattern Recognition · Computer Science 2013-08-06 Parimita Saikia , Karen Das

Weakly-Supervised Semantic Segmentation (WSSS) aims to train segmentation models by weak labels, which is receiving significant attention due to its low annotation cost. Existing approaches focus on generating pseudo labels for supervision…

Image and Video Processing · Electrical Eng. & Systems 2024-03-21 Linshan Wu , Zhun Zhong , Jiayi Ma , Yunchao Wei , Hao Chen , Leyuan Fang , Shutao Li

Handwriting Recognition enables a person to scribble something on a piece of paper and then convert it into text. If we look into the practical reality there are enumerable styles in which a character may be written. These styles can be…

Computer Vision and Pattern Recognition · Computer Science 2010-04-20 Rahul Kala , Harsh Vazirani , Anupam Shukla , Ritu Tiwari

In this paper we present a word spotting system in text lines for offline Indic scripts such as Bangla (Bengali) and Devanagari. Recently, it was shown that zone-wise recognition method improves the word recognition performance than…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Ayan Kumar Bhunia , Partha Pratim Roy , Umapada Pal

Culture and language evolve together. The old literary form of Tamil is used commonly for writing and the contemporary colloquial Tamil is used for speaking. Human-computer interaction applications require Colloquial Tamil (CT) to make it…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-27 M. Nanmalar , P. Vijayalakshmi , T. Nagarajan

A set of features independent of character stroke direction and order variations is proposed for online handwritten character recognition. A method is developed that maps features like co-ordinates of points, orientations of strokes at…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Anand Sharma , A. G. Ramakrishnan

Language Identification (LI) is crucial for various natural language processing tasks, serving as a foundational step in applications such as sentiment analysis, machine translation, and information retrieval. In multilingual societies like…

Computation and Language · Computer Science 2025-03-13 Aniket Deroy , Subhankar Maity