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The measured relative entropies of quantum states and channels find operational significance in quantum information theory as achievable error rates in hypothesis testing tasks. They are of interest in the near term, as they correspond to…

量子物理 · 物理学 2025-10-21 Zixin Huang , Mark M. Wilde

In recent years, many recommender systems have utilized textual data for topic extraction to enhance interpretability. However, our findings reveal a noticeable deficiency in the coherence of keywords within topics, resulting in low…

计算与语言 · 计算机科学 2023-06-14 Xuefei Jiang , Dairui Liu , Ruihai Dong

We propose a method to compare and visualise sentence encoders at scale by creating a map of encoders where each sentence encoder is represented in relation to the other sentence encoders. Specifically, we first represent a sentence encoder…

计算与语言 · 计算机科学 2026-02-10 Gaifan Zhang , Danushka Bollegala

Segmentation of a text-document into lines, words and characters, which is considered to be the crucial pre-processing stage in Optical Character Recognition (OCR) is traditionally carried out on uncompressed documents, although most of the…

计算机视觉与模式识别 · 计算机科学 2014-04-01 Mohammed Javed , P. Nagabhushan , B. B. Chaudhuri

Many datasets exhibit a well-defined structure that can be exploited to design faster search tools, but it is not always clear when such acceleration is possible. Here, we introduce a framework for similarity search based on characterizing…

数据结构与算法 · 计算机科学 2015-09-22 Y. William Yu , Noah M. Daniels , David Christian Danko , Bonnie Berger

The average uncertainty associated with words is an information-theoretic concept at the heart of quantitative and computational linguistics. The entropy has been established as a measure of this average uncertainty - also called average…

计算与语言 · 计算机科学 2016-06-23 Christian Bentz , Dimitrios Alikaniotis

This paper proposes a novel entropy encoding technique for lossless data compression. Representing a message string by its lexicographic index in the permutations of its symbols results in a compressed version matching Shannon entropy of…

信息论 · 计算机科学 2017-03-24 Abu Bakar Siddique

In this paper, we will present p roposed enhance process of image compression by using RLE algorithm. This proposed yield to decrease the size of compressing image, but the original method used primarily for compressing a binary images…

多媒体 · 计算机科学 2018-04-03 Ali H. Husseen Al-nuaimi , Shyamaa Shakir Al-juboori , R. J. Mohammed

We present EntropyDB, an interactive data exploration system that uses a probabilistic approach to generate a small, query-able summary of a dataset. Departing from traditional summarization techniques, we use the Principle of Maximum…

数据库 · 计算机科学 2019-11-13 Laurel Orr , Magdalena Balazinska , Dan Suciu

When dealing with document similarity many methods exist today, like cosine similarity. More complex methods are also available based on the semantic analysis of textual information, which are computationally expensive and rarely used in…

信息检索 · 计算机科学 2015-05-18 Giancarlo Crocetti

In computer vision, it is often observed that formulating regression problems as a classification task often yields better performance. We investigate this curious phenomenon and provide a derivation to show that classification, with the…

计算机视觉与模式识别 · 计算机科学 2023-03-01 Shihao Zhang , Linlin Yang , Michael Bi Mi , Xiaoxu Zheng , Angela Yao

This paper explores entropy-controlled dithering techniques in audio compression, examining the application of standard and modified TPDFs, combined with noise shaping and entropy-controlled parameters, across various audio contexts,…

音频与语音处理 · 电气工程与系统科学 2025-01-13 Ellison Murray , Morriel Kasher , Predrag Spasojevic

Automatic summarization is the process of reducing a text document in order to generate a summary that retains the most important points of the original document. In this work, we study two problems - i) summarizing a text document as set…

信息检索 · 计算机科学 2024-06-04 Jayaprakash Sundararaj

Existing video captioning approaches typically require to first sample video frames from a decoded video and then conduct a subsequent process (e.g., feature extraction and/or captioning model learning). In this pipeline, manual frame…

计算机视觉与模式识别 · 计算机科学 2024-01-04 Yaojie Shen , Xin Gu , Kai Xu , Heng Fan , Longyin Wen , Libo Zhang

We present a new data structure called the \emph{Compressed Random Access Memory} (CRAM) that can store a dynamic string $T$ of characters, e.g., representing the memory of a computer, in compressed form while achieving asymptotically…

数据结构与算法 · 计算机科学 2015-03-17 Jesper Jansson , Kunihiko Sadakane , Wing-Kin Sung

The quantum relative entropy is a fundamental quantity in quantum information science, characterizing the distinguishability between two quantum states. However, this quantity is not additive in general for correlated quantum states,…

量子物理 · 物理学 2025-06-05 Kun Fang , Hamza Fawzi , Omar Fawzi

Extracting a block of interest referred to as segmenting a specified block in an image and studying its characteristics is of general research interest, and could be a challenging if such a segmentation task has to be carried out directly…

计算机视觉与模式识别 · 计算机科学 2014-02-19 Mohammed Javed , P. Nagabhushan , B. B. Chaudhuri

Timely analysis of cyber-security information necessitates automated information extraction from unstructured text. While state-of-the-art extraction methods produce extremely accurate results, they require ample training data, which is…

信息检索 · 计算机科学 2014-06-11 Robert A. Bridges , Corinne L. Jones , Michael D. Iannacone , Kelly M. Testa , John R. Goodall

Finding the minimal relative entropy of two quantum states under semidefinite constraints is a pivotal problem located at the mathematical core of various applications in quantum information theory. An efficient method for providing…

量子物理 · 物理学 2026-02-02 Gereon Koßmann , René Schwonnek

The similarity of local atomic environments is an important concept in many machine-learning techniques which find applications in computational chemistry and material science. Here, we present and discuss a connection between the…

化学物理 · 物理学 2026-03-03 Alexander Croy