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Text normalization is an essential task in the processing and analysis of social media that is dominated with informal writing. It aims to map informal words to their intended standard forms. Previously proposed text normalization…

计算与语言 · 计算机科学 2017-12-29 Salman Ahmad Ansari , Usman Zafar , Asim Karim

We propose a computationally light method for estimating similarities between text documents, which we call the density similarity (DS) method. The method is based on a word embedding in a high-dimensional Euclidean space and on kernel…

计算与语言 · 计算机科学 2020-09-03 Ilia Rushkin

This paper presents a new algorithm for calculating hash signatures of sets which can be directly used for Jaccard similarity estimation. The new approach is an improvement over the MinHash algorithm, because it has a better runtime…

数据结构与算法 · 计算机科学 2017-06-20 Otmar Ertl

In this paper we are interested in indexing texts for substring matching queries with one edit error. That is, given a text $T$ of $n$ characters over an alphabet of size $\sigma$, we are asked to build a data structure that answers the…

数据结构与算法 · 计算机科学 2014-08-25 Djamal Belazzougui

Image-text retrieval is a widely studied topic in the field of computer vision due to the exponential growth of multimedia data, whose core concept is to measure the similarity between images and text. However, most existing retrieval…

计算机视觉与模式识别 · 计算机科学 2023-12-08 Yang Zhang

The inclusion of semantic information in any similarity measures improves the efficiency of the similarity measure and provides human interpretable results for further analysis. The similarity calculation method that focuses on features…

信息检索 · 计算机科学 2019-11-01 Pinky Sitikhu , Kritish Pahi , Pujan Thapa , Subarna Shakya

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…

信息检索 · 计算机科学 2019-02-12 Sunil Aryal , Kai Ming Ting , Takashi Washio , Gholamreza Haffari

Proximity graph-based methods have emerged as a leading paradigm for approximate nearest neighbor (ANN) search in the system community. This paper presents fresh insights into the theoretical foundation of these methods. We describe an…

数据结构与算法 · 计算机科学 2025-09-10 Shangqi Lu , Yufei Tao

Sublinear time algorithms for approximating maximum matching size have long been studied. Much of the progress over the last two decades on this problem has been on the algorithmic side. For instance, an algorithm of Behnezhad [FOCS'21]…

数据结构与算法 · 计算机科学 2022-11-30 Soheil Behnezhad , Mohammad Roghani , Aviad Rubinstein

Generative models, widely utilized in various applications, can often struggle with prompts corresponding to partial tokens. This struggle stems from tokenization, where partial tokens fall out of distribution during inference, leading to…

Networks are ubiquitous in the real world. Link prediction, as one of the key problems for network-structured data, aims to predict whether there exists a link between two nodes. The traditional approaches are based on the explicit…

机器学习 · 计算机科学 2021-06-01 Wei Wu , Bin Li , Chuan Luo , Wolfgang Nejdl

In many applications, it is necessary to determine the string similarity. Edit distance[WF74] approach is a classic method to determine Field Similarity. A well known dynamic programming algorithm [GUS97] is used to calculate edit distance…

数据结构与算法 · 计算机科学 2007-05-23 Qi Xiao Yang , Sung Sam Yuan , Lu Chun , Li Zhao , Sun Peng

Measuring the similarity of short written contexts is a fundamental problem in Natural Language Processing. This article provides a unifying framework by which short context problems can be categorized both by their intended application and…

计算与语言 · 计算机科学 2010-10-19 Ted Pedersen

\Graph similarity computation is an essential task in many real-world graph-related applications such as retrieving the similar drugs given a query chemical compound or finding the user's potential friends from the social network database.…

机器学习 · 计算机科学 2024-12-18 Jingjing Wang , Hongjie Zhu , Haoran Xie , Fu Lee Wang , Xiaoliang Xu , Yuxiang Wang

Text clustering holds significant value across various domains due to its ability to identify patterns and group related information. Current approaches which rely heavily on a computed similarity measure between documents are often limited…

信息检索 · 计算机科学 2025-04-09 Laurence Hirsch , Robin Hirsch , Bayode Ogunleye

Numerous real-world information networks form Heterogeneous Information Networks (HINs) with diverse objects and relations represented as nodes and edges in heterogeneous graphs. Similarity between nodes quantifies how closely two nodes…

机器学习 · 计算机科学 2025-02-27 Xuqi Mao , Zhenyi Chen , Zhenying He , Yinan Jing , Kai Zhang , X. Sean Wang

In a recent work, Esmer et al. describe a simple method - Approximate Monotone Local Search - to obtain exponential approximation algorithms from existing parameterized exact algorithms, polynomial-time approximation algorithms and, more…

数据结构与算法 · 计算机科学 2023-08-30 Baris Can Esmer , Ariel Kulik , Daniel Marx , Daniel Neuen , Roohani Sharma

With advances in multimedia technologies and the proliferation of smart phone, digital cameras, storage devices, there are a rapidly growing massive amount of multimedia data collected in many applications such as multimedia retrieval and…

多媒体 · 计算机科学 2018-08-16 Chengyuan Zhang , Yunwu Lin , Lei Zhu , XinPan Yuan , Jun Long , Fang Huang

Pattern matching is a fundamental process in almost every scientific domain. The problem involves finding the positions of a given pattern (usually of short length) in a reference stream of data (usually of large length). The matching can…

数据结构与算法 · 计算机科学 2022-07-01 Anas Al-okaily , Abdelghani Tbakhi

When training transformers on graph-structured data, incorporating information about the underlying topology is crucial for good performance. Topological masking, a type of relative position encoding, achieves this by upweighting or…