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Due to the advances in mobile computing and multimedia techniques, there are vast amount of multimedia data with geographical information collected in multifarious applications. In this paper, we propose a novel type of image search named…

Multimedia · Computer Science 2018-06-05 Jun Long , Lei Zhu , Chengyuan Zhang , Zhan Yang , Yunwu Lin , Ruipeng Chen

Geospatial data come from various sources, such as satellites, aircraft, and LiDAR. The variability of the source is not limited to the types of data acquisition techniques, as we have maps from different time periods. To incorporate these…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Hae Jin Song , Patrycja Krawczuk , Po-Hsuan Huang

Grounding free-form textual queries necessitates an understanding of these textual phrases and its relation to the visual cues to reliably reason about the described locations. Spatial attention networks are known to learn this relationship…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Amar Shrestha , Krittaphat Pugdeethosapol , Haowen Fang , Qinru Qiu

Satellite imaging is a critical technology for monitoring and responding to natural disasters such as flooding. Despite the capabilities of modern satellites, there is still much to be desired from the perspective of first response…

Image and Video Processing · Electrical Eng. & Systems 2020-01-17 Gonzalo Mateo-Garcia , Silviu Oprea , Lewis Smith , Josh Veitch-Michaelis , Guy Schumann , Yarin Gal , Atılım Güneş Baydin , Dietmar Backes

Geospatial reasoning is essential for real-world applications such as urban analytics, transportation planning, and disaster response. However, existing LLM-based agents often fail at genuine geospatial computation, relying instead on web…

Artificial Intelligence · Computer Science 2026-01-26 Riyang Bao , Cheng Yang , Dazhou Yu , Zhexiang Tang , Gengchen Mai , Liang Zhao

The advancement of mobile computing devices and positioning technologies has led to an explosive growth of spatio-temporal data managed in databases. Representative queries over such data include range queries, nearest neighbor queries, and…

Databases · Computer Science 2026-01-23 Xieyang Wang , Mengyi Liu , Weijia Yi , Jianqiu Xu , Raymond Chi-Wing Wong

We consider the problem of removing and replacing clouds in satellite image sequences, which has a wide range of applications in remote sensing. Our approach first detects and removes the cloud-contaminated part of the image sequences. It…

Computer Vision and Pattern Recognition · Computer Science 2016-04-14 Jialei Wang , Peder A. Olsen , Andrew R. Conn , Aurelie C. Lozano

Humanitarian response to natural disasters and conflicts can be assisted by satellite image analysis. In a humanitarian context, very specific satellite image analysis tasks must be done accurately and in a timely manner to provide…

Computer Vision and Pattern Recognition · Computer Science 2020-01-30 Tomaz Logar , Joseph Bullock , Edoardo Nemni , Lars Bromley , John A. Quinn , Miguel Luengo-Oroz

Recent advancements in video-language understanding have been established on the foundation of image-text models, resulting in promising outcomes due to the shared knowledge between images and videos. However, video-language understanding…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Xiao Wang , Yaoyu Li , Tian Gan , Zheng Zhang , Jingjing Lv , Liqiang Nie

We present a distributed system for storage, processing, three-dimensional visualisation and basic analysis of data from Earth-observing satellites. The database and the server have been designed for high performance and scalability,…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-11-17 Marek Szuba , Parinaz Ameri , Udo Grabowski , Jörg Meyer , Achim Streit

The main goal of this paper is to explore latent topic analysis (LTA), in the context of quantum information retrieval. LTA is a valuable technique for document analysis and representation, which has been extensively used in information…

Machine Learning · Computer Science 2019-03-08 Fabio A. González , Juan C. Caicedo

Question answering (QA) is the task of answering questions posed in natural language with free-form natural language answers extracted from a given passage. In the OpenQA variant, only a question text is given, and the system must retrieve…

Computation and Language · Computer Science 2024-11-21 Emrah Budur , Rıza Özçelik , Dilara Soylu , Omar Khattab , Tunga Güngör , Christopher Potts

We present SpaceQA, to the best of our knowledge the first open-domain QA system in Space mission design. SpaceQA is part of an initiative by the European Space Agency (ESA) to facilitate the access, sharing and reuse of information about…

Recent advances in Computer Vision and Deep Learning have enabled astonishing results in a variety of fields and applications. Motivated by this success, the SkyCam Dataset aims to enable image-based Deep Learning solutions for short-term,…

Computer Vision and Pattern Recognition · Computer Science 2021-05-10 Evangelos Ntavelis , Jan Remund , Philipp Schmid

360$^\circ$ videos convey holistic views for the surroundings of a scene. It provides audio-visual cues beyond pre-determined normal field of views and displays distinctive spatial relations on a sphere. However, previous benchmark tasks…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Heeseung Yun , Youngjae Yu , Wonsuk Yang , Kangil Lee , Gunhee Kim

There is a large number of data archives and web services offering free access to multispectral satellite imagery. Images from multiple sources are increasingly combined to improve the spatio-temporal coverage of measurements while…

Computation · Statistics 2020-02-10 U. Pérez-Goya , M. Montesino-SanMartin , A. F. Militino , M. D. Ugarte

Visual Question Answering (VQA) is an extremely stimulating and challenging research area where Computer Vision (CV) and Natural Language Processig (NLP) have recently met. In image captioning and video summarization, the semantic…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Silvio Barra , Carmen Bisogni , Maria De Marsico , Stefano Ricciardi

Event forecasting is a challenging, yet important task, as humans seek to constantly plan for the future. Existing automated forecasting studies rely mostly on structured data, such as time-series or event-based knowledge graphs, to help…

Machine Learning · Computer Science 2021-06-09 Woojeong Jin , Rahul Khanna , Suji Kim , Dong-Ho Lee , Fred Morstatter , Aram Galstyan , Xiang Ren

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

Building a question-answering agent currently requires large annotated datasets, which are prohibitively expensive. This paper proposes Schema2QA, an open-source toolkit that can generate a Q&A system from a database schema augmented with a…

Computation and Language · Computer Science 2023-05-03 Silei Xu , Giovanni Campagna , Jian Li , Monica S. Lam
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