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The graph Fourier transform (GFT) is an important tool for graph signal processing, with applications ranging from graph-based image processing to spectral clustering. However, unlike the discrete Fourier transform, the GFT typically does…

Signal Processing · Electrical Eng. & Systems 2019-10-02 Keng-Shih Lu , Antonio Ortega

This paper presents the Bayesian Hierarchical Words Representation (BHWR) learning algorithm. BHWR facilitates Variational Bayes word representation learning combined with semantic taxonomy modeling via hierarchical priors. By propagating…

Computation and Language · Computer Science 2020-04-16 Oren Barkan , Idan Rejwan , Avi Caciularu , Noam Koenigstein

There are major advantages in a newer version of Grover's quantum algorithm utilizing a general unitary transformation in the search of a single object in a large unsorted database. In this paper, we generalize this algorithm to multiobject…

Quantum Physics · Physics 2007-05-23 Goong Chen , Shunhua Sun

Macro tree transducers (mtt) are an important model that both covers many useful XML transformations and allows decidable exact typechecking. This paper reports our first step toward an implementation of mtt typechecker that has a practical…

Programming Languages · Computer Science 2007-05-23 Alain Frisch , Haruo Hosoya

We present an extension of the in-place BWT algorithm of Crochemore et al. [8] that enables the construction of the Lyndon array using O(1) extra space. Our approach incrementally maintains the lexicographic ranks of the suffixes during the…

Data Structures and Algorithms · Computer Science 2025-12-25 Felipe A. Louza , Arnaud Lefebvre

This paper introduces a novel indexing and access method, called Feature- Based Adaptive Tolerance Tree (FATT), using wavelet transform is proposed to organize large image data sets efficiently and to support popular image access mechanisms…

Multimedia · Computer Science 2010-04-09 Dr. P. AnandhaKumar , V. Balamurugan

In deep time series forecasting, the Fourier Transform (FT) is extensively employed for frequency representation learning. However, it often struggles in capturing multi-scale, time-sensitive patterns. Although the Wavelet Transform (WT)…

Machine Learning · Computer Science 2026-02-09 Ziyu Zhou , Jiaxi Hu , Qingsong Wen , James T. Kwok , Yuxuan Liang

Re-finding information is an essential activity, however, it can be difficult when people struggle to express what they are looking for. Through a need-finding survey, we first seek opportunities for improving re-finding experiences, and…

Human-Computer Interaction · Computer Science 2023-05-16 Haekyu Park , Gonzalo Ramos , Jina Suh , Christopher Meek , Rachel Ng , Mary Czerwinski

Optimal Transport (OT) provides a useful geometric framework to estimate the permutation matrix under unsupervised cross-lingual word embedding (CLWE) models that pose the alignment task as a Wasserstein-Procrustes problem. However, linear…

Computation and Language · Computer Science 2022-12-06 Prince O Aboagye , Yan Zheng , Michael Yeh , Junpeng Wang , Zhongfang Zhuang , Huiyuan Chen , Liang Wang , Wei Zhang , Jeff Phillips

The embodied intelligence bridges the physical world and information space. As its typical physical embodiment, humanoid robots have shown great promise through robot learning algorithms in recent years. In this study, a hardware platform,…

Robotics · Computer Science 2025-10-17 Jiaxin Huang , Hanyu Liu , Yunsheng Ma , Jian Shen , Yilin Zheng , Jiayi Wen , Baishu Wan , Pan Li , Zhigong Song

Neural Machine Translation (MT) has reached state-of-the-art results. However, one of the main challenges that neural MT still faces is dealing with very large vocabularies and morphologically rich languages. In this paper, we propose a…

Computation and Language · Computer Science 2016-07-01 Marta R. Costa-Jussà , José A. R. Fonollosa

The cost of deploying vision transformers increasingly represents a barrier to wider industrial adoption. Existing compression techniques require additional end-to-end fine-tuning or incur a significant drawback to energy efficiency, making…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Leonidas Gee , Wing Yan Li , Viktoriia Sharmanska , Novi Quadrianto

Efficient optimisation algorithms have become important tools for finding high-quality solutions to hard, real-world problems such as production scheduling, timetabling, or vehicle routing. These algorithms are typically "black boxes" that…

Human-Computer Interaction · Computer Science 2020-09-08 Jie Liu , Tim Dwyer , Guido Tack , Samuel Gratzl , Kim Marriott

The sampling based motion planning algorithm known as Rapidly-exploring Random Trees (RRT) has gained the attention of many researchers due to their computational efficiency and effectiveness. Recently, a variant of RRT called RRT* has been…

Robotics · Computer Science 2017-03-28 Ahmed Hussain Qureshi , Yasar Ayaz

A wavelet forest for a text $T [1..n]$ over an alphabet $\sigma$ takes $n H_0 (T) + o (n \log \sigma)$ bits of space and supports access and rank on $T$ in $O (\log \sigma)$ time. K\"arkk\"ainen and Puglisi (2011) implicitly introduced…

Data Structures and Algorithms · Computer Science 2023-08-16 Christina Boucher , Travis Gagie , Aaron Hong , Yansong Li , Norbert Zeh

With the popularity of the recent Transformer-based models represented by BERT, GPT-3 and ChatGPT, there has been state-of-the-art performance in a range of natural language processing tasks. However, the massive computations, huge memory…

Computation and Language · Computer Science 2023-04-04 Gaochen Dong , Wei Chen

While insights into the workings of the transformer model have largely emerged by analysing their behaviour on language tasks, this work investigates the representations learnt by the Vision Transformer (ViT) encoder through the lens of…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Akshad Shyam Purushottamdas , Pranav K Nayak , Divya Mehul Rajparia , Deekshith Patel , Yashmitha Gogineni , Konda Reddy Mopuri , Sumohana S. Channappayya

Convolutional neural networks rely on linear filtering operations that can be reformulated efficiently in suitable transform domains. At the same time, advances in quantum computing have shown that certain structured linear transforms can…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Vittorio Palladino , Tsai Idden , Ahmet Enis Cetin

Open-World Tracking (OWT) aims to track every object of any category, which requires the model to have strong generalization capabilities. Trackers can improve their generalization ability by leveraging Visual Language Models (VLMs).…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Bingyang Wang , Kaer Huang , Bin Li , Yiqiang Yan , Lihe Zhang , Huchuan Lu , You He

Handwritten Arabic script recognition is a challenging task due to the script's dynamic letter forms and contextual variations. This paper proposes a hybrid approach combining convolutional neural networks (CNNs) and Transformer-based…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Chaouki Boufenar , Mehdi Ayoub Rabiai , Boualem Nadjib Zahaf , Khelil Rafik Ouaras