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In this paper, we propose to incorporate convolutional neural networks with a multi-context attention mechanism into an end-to-end framework for human pose estimation. We adopt stacked hourglass networks to generate attention maps from…

Computer Vision and Pattern Recognition · Computer Science 2017-02-27 Xiao Chu , Wei Yang , Wanli Ouyang , Cheng Ma , Alan L. Yuille , Xiaogang Wang

This paper presents a comparative study for window-based descriptors on the application of Arabic handwritten alphabet recognition. We show a detailed experimental evaluation of different descriptors with several classifiers. The objective…

Computer Vision and Pattern Recognition · Computer Science 2014-11-18 Marwan Torki , Mohamed E. Hussein , Ahmed Elsallamy , Mahmoud Fayyaz , Shehab Yaser

The quadratic computational complexity of standard attention mechanisms presents a severe scalability bottleneck for LLMs in long-context scenarios. While hybrid attention mechanisms combining Full Attention (FA) and Sparse Attention (SA)…

Machine Learning · Computer Science 2026-04-10 Quantong Qiu , Zhiyi Hong , Yi Yang , Haitian Wang , Kebin Liu , Qingqing Dang , Juntao Li , Min Zhang

Textual cues are essential for everyday tasks like buying groceries and using public transport. To develop this assistive technology, we study the TextVQA task, i.e., reasoning about text in images to answer a question. Existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2020-12-24 Yash Kant , Dhruv Batra , Peter Anderson , Alex Schwing , Devi Parikh , Jiasen Lu , Harsh Agrawal

Due to the omnipresence of mobile devices, online handwritten scripts have become the most important feeding input to smartphones and tablet devices. To increase online handwriting recognition performance, deeper neural networks have…

Computer Vision and Pattern Recognition · Computer Science 2019-08-05 Hanen Akouaydi , Sourour Njah , Wael Ouarda , Anis Samet , Thameur Dhieb , Mourad Zaied , Adel M. Alimi

As the Information Retrieval (IR) field increasingly recognizes the importance of inclusivity, addressing the needs of low-resource languages remains a significant challenge. Transliteration between Urdu and its Romanized form, Roman Urdu,…

Computation and Language · Computer Science 2025-04-07 Umer Butt , Stalin Veranasi , Günter Neumann

Authorship analysis has traditionally focused on lexical and stylistic cues within text, while higher-level narrative structure remains underexplored, particularly for low-resource languages such as Urdu. This work proposes a graph-based…

Computation and Language · Computer Science 2025-12-16 Hassan Mujtaba , Hamza Naveed , Hanzlah Munir

We report upon the results of a research and prototype building project \emph{Worldly~OCR} dedicated to developing new, more accurate image-to-text conversion software for several languages and writing systems. These include the cursive…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Marek Rychlik , Dwight Nwaigwe , Yan Han , Dylan Murphy

Attention-based end-to-end models such as Listen, Attend and Spell (LAS), simplify the whole pipeline of traditional automatic speech recognition (ASR) systems and become popular in the field of speech recognition. In previous work,…

Computation and Language · Computer Science 2019-04-26 Ruchao Fan , Pan Zhou , Wei Chen , Jia Jia , Gang Liu

Arabic poses a particular challenge for natural language processing (NLP) and information retrieval (IR) due to its complex morphology, optional diacritics and the coexistence of Modern Standard Arabic (MSA) and various dialects. Despite…

Computation and Language · Computer Science 2025-08-01 Salah Eddine Bekhouche , Azeddine Benlamoudi , Yazid Bounab , Fadi Dornaika , Abdenour Hadid

Developing a high-performing large language models (LLMs) for low-resource languages such as Urdu, present several challenges. These challenges include the scarcity of high-quality datasets, multilingual inconsistencies, and safety…

Computation and Language · Computer Science 2025-10-13 Muhammad Ali Shafique , Kanwal Mehreen , Muhammad Arham , Maaz Amjad , Sabur Butt , Hamza Farooq

Arabic text diacritization remains a persistent challenge in natural language processing due to the language's morphological richness. In this paper, we introduce Sadeed, a novel approach based on a fine-tuned decoder-only language model…

Computation and Language · Computer Science 2025-08-22 Zeina Aldallal , Sara Chrouf , Khalil Hennara , Mohamed Motaism Hamed , Muhammad Hreden , Safwan AlModhayan

The problem of converting images of text into plain text is a widely researched topic in both academia and industry. Arabic handwritten Text Recognation (AHTR) poses additional challenges due to diverse handwriting styles and limited…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Alhossien Waly , Bassant Tarek , Ali Feteha , Rewan Yehia , Gasser Amr , Ahmed Fares

This paper proposes a new demand estimation method using attention-based language models. An encoder-only language model is trained in a two-stage process to analyze the natural language descriptions of used cars from a large US-based…

Econometrics · Economics 2025-07-24 Joshua Foster , Fredrik Odegaard

The rapid growth of social media has amplified the spread of offensive, violent, and vulgar speech, which poses serious societal and cybersecurity concerns. Detecting such content in Arabic text is particularly complex due to limited…

Computation and Language · Computer Science 2025-06-04 Aisha Alansari , Hamzah Luqman

The two most common paradigms for end-to-end speech recognition are connectionist temporal classification (CTC) and attention-based encoder-decoder (AED) models. It has been argued that the latter is better suited for learning an implicit…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-22 Lasse Borgholt , Jakob Drachmann Havtorn , Željko Agić , Anders Søgaard , Lars Maaløe , Christian Igel

This study evaluates the feasibility of lightweight Whisper models (Tiny, Base, Small) for Urdu speech recognition in low-resource settings. Despite Urdu being the 10th most spoken language globally with over 230 million speakers, its…

Computation and Language · Computer Science 2025-08-14 Abdul Rehman Antall , Naveed Akhtar

The inherent complexities of Arabic script; its cursive nature, diacritical marks (tashkeel), and varied typography, pose persistent challenges for Optical Character Recognition (OCR). We present Qari-OCR, a series of vision-language models…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Ahmed Wasfy , Omer Nacar , Abdelakreem Elkhateb , Mahmoud Reda , Omar Elshehy , Adel Ammar , Wadii Boulila

Text segmentation is a challenging vision task with many downstream applications. Current text segmentation methods require pixel-level annotations, which are expensive in the cost of human labor and limited in application scenarios. In…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Xinyan Zu , Haiyang Yu , Bin Li , Xiangyang Xue

In recent years, several influential computational models and metrics have been proposed to predict how humans comprehend and process sentence. One particularly promising approach is contextual semantic similarity. Inspired by the attention…

Computation and Language · Computer Science 2024-03-28 Kun Sun