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Keyword-based information processing has limitations due to simple treatment of words. In this paper, we introduce named entities as objectives into document clustering, which are the key elements defining document semantics and in many…

Information Retrieval · Computer Science 2018-07-23 Tru H. Cao , Vuong M. Ngo , Dung T. Hong , Tho T. Quan

With the considerable growth of linked data, researchers have focused on how to increase the availability of semantic web technologies to provide practical usages for real life systems. Question answering systems are an example of real-life…

Computation and Language · Computer Science 2023-01-13 Ceren Ocal Tasar , Murat Komesli , Murat Osman Unalir

Open-vocabulary Multiple Object Tracking (MOT) aims to generalize trackers to novel categories not in the training set. Currently, the best-performing methods are mainly based on pure appearance matching. Due to the complexity of motion…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Siyuan Li , Lei Ke , Yung-Hsu Yang , Luigi Piccinelli , Mattia Segù , Martin Danelljan , Luc Van Gool

Conversational user queries are increasingly challenging traditional e-commerce platforms, whose search systems are typically optimized for keyword-based queries. We present an LLM-based semantic search framework that effectively captures…

Information Retrieval · Computer Science 2026-01-26 Emad Siddiqui , Venkatesh Terikuti , Xuan Lu

In this paper, we lay out a vision for analysing semantic trajectory traces and generating synthetic semantic trajectory data (SSTs) using generative language model. Leveraging the advancements in deep learning, as evident by progress in…

Computation and Language · Computer Science 2023-06-27 Shreya Ghosh , Saptarshi Sengupta , Prasenjit Mitra

Large Language Models (LLM) have emerged as a tool for robots to generate task plans using common sense reasoning. For the LLM to generate actionable plans, scene context must be provided, often through a map. Recent works have shifted from…

Robotics · Computer Science 2024-09-25 Mike Zhang , Kaixian Qu , Vaishakh Patil , Cesar Cadena , Marco Hutter

The Information Retrieval research has used semantics to provide accurate search results, but the analysis of conceptual abstraction has mainly focused on information integration. We consider session-based query expansion in Geographical…

Information Retrieval · Computer Science 2020-04-02 Noemi Mauro , Liliana Ardissono , Laura Di Rocco , Michela Bertolotto , Giovanna Guerrini

During the last fifteen years, automatic text scaling has become one of the key tools of the Text as Data community in political science. Prominent text scaling algorithms, however, rely on the assumption that latent positions can be…

Computation and Language · Computer Science 2021-10-15 Federico Nanni , Goran Glavas , Ines Rehbein , Simone Paolo Ponzetto , Heiner Stuckenschmidt

The size of 3D models used on the web or stored in databases is becoming increasingly high. Then, an efficient method that allows users to find similar 3D objects for a given 3D model query has become necessary. Keywords and the geometry of…

Information Retrieval · Computer Science 2011-11-29 My Abdellah Kassimi , Omar El beqqali

Efficiently computing spatio-textual queries has become increasingly important in various applications that need to quickly retrieve geolocated entities associated with textual information, such as in location-based services and social…

Data Structures and Algorithms · Computer Science 2023-12-18 Georgios Chatzigeorgakidis , Kostas Patroumpas , Dimitrios Skoutas , Spiros Athanasiou

With the advent of technology and use of latest devices, they produces voluminous data. Out of it, 80% of the data are unstructured and remaining 20% are structured and semi-structured. The produced data are in heterogeneous format and…

The proliferation of AI-powered search engines has shifted information discovery from traditional link-based retrieval to direct answer generation with selective source citation, creating new challenges for content visibility. While…

Computation and Language · Computer Science 2026-04-01 Junwei Yu , Mufeng Yang , Yepeng Ding , Hiroyuki Sato

In recent years, fully automated content analysis based on probabilistic topic models has become popular among social scientists because of their scalability. The unsupervised nature of the models makes them suitable for exploring topics in…

Computation and Language · Computer Science 2023-02-06 Shusei Eshima , Kosuke Imai , Tomoya Sasaki

A large volume of content generated by online users is geo-tagged and this provides a rich source for querying in various location-based services. An important class of queries within such services involves the association between content…

Databases · Computer Science 2022-01-20 Sara Farazi , Davood Rafiei

Visual Question Answering (VQA) concerns providing answers to Natural Language questions about images. Several deep neural network approaches have been proposed to model the task in an end-to-end fashion. Whereas the task is grounded in…

Artificial Intelligence · Computer Science 2020-02-03 Mehrdad Alizadeh , Barbara Di Eugenio

Keyword search engines are essential elements of large information spaces. The largest information space is the Web, and keyword search engines play crucial role there. The advent of keyword search engines has provided a quantum leap in the…

Information Retrieval · Computer Science 2020-09-21 Olegs Verhodubs

Text-based Visual Question Answering~(TextVQA) aims to produce correct answers for given questions about the images with multiple scene texts. In most cases, the texts naturally attach to the surface of the objects. Therefore, spatial…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Hao Li , Jinfa Huang , Peng Jin , Guoli Song , Qi Wu , Jie Chen

With the proliferation of spatio-textual data, Top-k KNN spatial keyword queries (TkQs), which return a list of objects based on a ranking function that considers both spatial and textual relevance, have found many real-life applications.…

Information Retrieval · Computer Science 2024-11-15 Ziqi Yin , Shanshan Feng , Shang Liu , Gao Cong , Yew Soon Ong , Bin Cui

Traditional retrieval methods have been essential for assessing document similarity but struggle with capturing semantic nuances. Despite advancements in latent semantic analysis (LSA) and deep learning, achieving comprehensive semantic…

Information Retrieval · Computer Science 2024-09-27 Solmaz Seyed Monir , Irene Lau , Shubing Yang , Dongfang Zhao

Archived collections of documents (like newspaper and web archives) serve as important information sources in a variety of disciplines, including Digital Humanities, Historical Science, and Journalism. However, the absence of efficient and…

Information Retrieval · Computer Science 2021-07-30 Pavlos Fafalios , Vaibhav Kasturia , Wolfgang Nejdl
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