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Related papers: KOIOS: Top-k Semantic Overlap Set Search

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When using the electronic map, POI retrieval is the initial and important step, whose quality directly affects the user experience. Similarity between user query and POI information is the most critical feature in POI retrieval. An accurate…

Information Retrieval · Computer Science 2019-03-19 Ji Zhao , Meiyu Yu , Huan Chen , Boning Li , Lingyu Zhang , Qi Song , Li Ma , Hua Chai , Jieping Ye

This paper addresses text-supervised semantic segmentation, aiming to learn a model capable of segmenting arbitrary visual concepts within images by using only image-text pairs without dense annotations. Existing methods have demonstrated…

Computer Vision and Pattern Recognition · Computer Science 2024-04-08 Ji-Jia Wu , Andy Chia-Hao Chang , Chieh-Yu Chuang , Chun-Pei Chen , Yu-Lun Liu , Min-Hung Chen , Hou-Ning Hu , Yung-Yu Chuang , Yen-Yu Lin

The "Subset Sum problem" is a very well-known NP-complete problem. In this work, a top-k variation of the "Subset Sum problem" is considered. This problem has wide application in recommendation systems, where instead of k best objects the k…

Data Structures and Algorithms · Computer Science 2021-08-27 Biswajit Sanyal , Subhashis Majumder , Priya Ranjan Sinha Mahapatra

The SHAP framework provides a principled method to explain the predictions of a model by computing feature importance. Motivated by applications in finance, we introduce the Top-k Identification Problem (TkIP), where the objective is to…

Machine Learning · Computer Science 2023-07-12 Sanjay Kariyappa , Leonidas Tsepenekas , Freddy Lécué , Daniele Magazzeni

Cross-modal image-text retrieval is challenging because of the diverse possible associations between content from different modalities. Traditional methods learn a single-vector embedding to represent semantics of each sample, but struggle…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Hani Alomari , Anushka Sivakumar , Andrew Zhang , Chris Thomas

Semantic matching aims to establish pixel-level correspondences between instances of the same category and represents a fundamental task in computer vision. Existing approaches suffer from two limitations: (i) Geometric Ambiguity: Their…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Songlin Yang , Tianyi Wei , Yushi Lan , Zeqi Xiao , Anyi Rao , Xingang Pan

Many Web applications require efficient querying of large Knowledge Graphs (KGs). We propose KOGNAC, a dictionary-encoding algorithm designed to improve SPARQL querying with a judicious combination of statistical and semantic techniques. In…

Artificial Intelligence · Computer Science 2016-07-12 Jacopo Urbani , Sourav Dutta , Sairam Gurajada , Gerhard Weikum

Levering data on social media, such as Twitter and Facebook, requires information retrieval algorithms to become able to relate very short text fragments to each other. Traditional text similarity methods such as tf-idf cosine-similarity,…

Information Retrieval · Computer Science 2015-12-03 Cedric De Boom , Steven Van Canneyt , Steven Bohez , Thomas Demeester , Bart Dhoedt

Previous work has considered token overlap, or even similarity of token distributions, as predictors for multilinguality and cross-lingual knowledge transfer in language models. However, these very literal metrics assign large distances to…

Computation and Language · Computer Science 2025-02-11 Katharina Hämmerl , Tomasz Limisiewicz , Jindřich Libovický , Alexander Fraser

Finding correspondences between semantically similar points across images and object instances is one of the everlasting challenges in computer vision. While large pre-trained vision models have recently been demonstrated as effective…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Olaf Dünkel , Thomas Wimmer , Christian Theobalt , Christian Rupprecht , Adam Kortylewski

Simon's congruence $\sim_k$ is defined as follows: two words are $\sim_k$-equivalent if they have the same set of subsequences of length at most $k$. We propose an algorithm which computes, given two words $s$ and $t$, the largest $k$ for…

Formal Languages and Automata Theory · Computer Science 2021-03-16 Pawel Gawrychowski , Maria Kosche , Tore Koss , Florin Manea , Stefan Siemer

With the increase in the number of image data and the lack of corresponding labels, weakly supervised learning has drawn a lot of attention recently in computer vision tasks, especially in the fine-grained semantic segmentation problem. To…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Ke Zhang , Sihong Chen , Qi Ju , Yong Jiang , Yucong Li , Xin He

Vector databases typically rely on approximate nearest neighbor (ANN) search to retrieve the top-k closest vectors to a query in embedding space. While effective, this approach often yields semantically redundant results, missing the…

Machine Learning · Computer Science 2025-07-29 Rahul Raja , Arpita Vats

We consider the problem of discovering overlapping communities in networks which we model as generalizations of Graph Packing problems with overlap. We seek a collection $\mathcal{S}' \subseteq \mathcal{S}$ consisting of at least $k$ sets…

Data Structures and Algorithms · Computer Science 2015-01-27 Henning Fernau , Alejandro López-Ortiz , Jazmín Romero

Estimating similarity between vertices is a fundamental issue in network analysis across various domains, such as social networks and biological networks. Methods based on common neighbors and structural contexts have received much…

Social and Information Networks · Computer Science 2015-04-14 Jing Zhang , Jie Tang , Cong Ma , Hanghang Tong , Yu Jing , Juanzi Li

Image and text retrieval is one of the foundational tasks in the vision and language domain with multiple real-world applications. State-of-the-art approaches, e.g. CLIP, ALIGN, represent images and texts as dense embeddings and calculate…

Computer Vision and Pattern Recognition · Computer Science 2023-02-09 Chen Chen , Bowen Zhang , Liangliang Cao , Jiguang Shen , Tom Gunter , Albin Madappally Jose , Alexander Toshev , Jonathon Shlens , Ruoming Pang , Yinfei Yang

This work proposes a multi-image matching method to estimate semantic correspondences across multiple images. In contrast to the previous methods that optimize all pairwise correspondences, the proposed method identifies and matches only a…

Computer Vision and Pattern Recognition · Computer Science 2018-05-02 Qianqian Wang , Xiaowei Zhou , Kostas Daniilidis

Code embeddings capture the semantic representations of code and are crucial for various code-related large language model (LLM) applications, such as code search. Previous training primarily relies on optimizing the InfoNCE loss by…

Computation and Language · Computer Science 2025-07-18 Zuchen Gao , Zizheng Zhan , Xianming Li , Erxin Yu , Ziqi Zhan , Haotian Zhang , Bin Chen , Yuqun Zhang , Jing Li

Being able to learn dense semantic representations of images without supervision is an important problem in computer vision. However, despite its significance, this problem remains rather unexplored, with a few exceptions that considered…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Wouter Van Gansbeke , Simon Vandenhende , Stamatios Georgoulis , Luc Van Gool

Semantic communication, as a revolutionary communication architecture, is considered a promising novel communication paradigm. Unlike traditional symbol-based error-free communication systems, semantic-based visual communication systems…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Senran Fan , Zhicheng Bao , Chen Dong , Haotai Liang , Xiaodong Xu , Ping Zhang