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With advances in geo-positioning technologies and geo-location services, there are a rapidly growing massive amount of spatio-temporal data collected in many applications such as location-aware devices and wireless communication, in which…

Databases · Computer Science 2018-05-22 Chengyuan Zhangy , Lei Zhuy , Jun Longy , Shuangqiao Liny , Zhan Yangy , Wenti Huang

Associating type to locations can be used to enrich maps and can serve a plethora of geospatial applications. An automatic method to do so could make the process less expensive in terms of human labor, and faster to react to changes. In…

Computation and Language · Computer Science 2020-09-21 Elad Kravi , Benny Kimelfeld , Yaron Kanza , Roi Reichart

The advent of text-image models, most notably CLIP, has significantly transformed the landscape of information retrieval. These models enable the fusion of various modalities, such as text and images. One significant outcome of CLIP is its…

Information Retrieval · Computer Science 2024-06-21 Christian Lülf , Denis Mayr Lima Martins , Marcos Antonio Vaz Salles , Yongluan Zhou , Fabian Gieseke

Many User interactive systems are proposed all methods are trying to implement as a user friendly and various approaches proposed but most of the systems not reached to the use specifications like user friendly systems with user interest,…

Computer Vision and Pattern Recognition · Computer Science 2012-04-12 R. Venkata Ramana Chary , D. Rajya Lakshmi , K. V. N. Sunitha

We propose a structured approach to the problem of retrieval of images by content and present a description logic that has been devised for the semantic indexing and retrieval of images containing complex objects. As other approaches do, we…

Artificial Intelligence · Computer Science 2011-09-08 E. Di Sciascio , F. M. Donini , M. Mongiello

With the advent of location-based social networks, users can tag their daily activities in different locations through check-ins. These check-in locations signify user preferences for various socio-spatial activities and can be used to…

Social and Information Networks · Computer Science 2022-03-01 Nur Al Hasan Haldar , Jianxin Li , Mohammed Eunus Ali , Taotao Cai , Timos Sellis , Mark Reynolds

With the rapid development of mobile computing and Web services, a huge amount of data with spatial and temporal information have been collected everyday by smart mobile terminals, in which an object is described by its spatial information…

Databases · Computer Science 2018-05-15 Jun Long , Lei Zhu , Chengyuan Zhang , Shuangqiao Lin , Zhan Yang , Xinpan Yuan

We propose a new task of recommending touristic locations based on a user's visiting history in a geographically remote region. This can be used to plan a touristic visit to a new city or country, or by travel agencies to provide…

Information Retrieval · Computer Science 2024-10-30 Maarten Clements , Pavel Serdyukov , Arjen P. de Vries , Marcel J. T. Reinders

Sub-image search with high accuracy in natural images still remains a challenging problem. This paper proposes a new feature vector called profile for a keypoint in a bag of visual words model of an image. The profile of a keypoint captures…

Computer Vision and Pattern Recognition · Computer Science 2010-10-08 Vishwakarma Singh , Ambuj K. Singh

With the prevalence of social media and GPS-enabled devices, a massive amount of geo-textual data has been generated in a stream fashion, leading to a variety of applications such as location-based recommendation and information…

Databases · Computer Science 2016-11-11 Xiang Wang , Ying Zhang , Wenjie Zhang , Xuemin Lin , Zengfeng Huang

A popular approach to semantic image understanding is to manually tag images with keywords and then learn a mapping from vi- sual features to keywords. Manually tagging images is a subjective pro- cess and the same or very similar visual…

Computer Vision and Pattern Recognition · Computer Science 2016-09-08 Ke Sun , Xianxu Hou , Qian Zhang , Guoping Qiu

Interactive digital maps have revolutionized how people travel and learn about the world; however, they rely on pre-existing structured data in GIS databases (e.g., road networks, POI indices), limiting their ability to address geo-visual…

Human-Computer Interaction · Computer Science 2025-08-22 Jon E. Froehlich , Jared Hwang , Zeyu Wang , John S. O'Meara , Xia Su , William Huang , Yang Zhang , Alex Fiannaca , Philip Nelson , Shaun Kane

A common problem appearing across the field of data science is $k$-NN ($k$-nearest neighbours), particularly within the context of Geographic Information Systems. In this article, we present a novel data structure, the GeoTree, which holds…

Data Structures and Algorithms · Computer Science 2020-08-06 Robert Miller , Phil Maguire

Spatial co-location pattern mining refers to the task of discovering the group of objects or events that co-occur at many places. Extracting these patterns from spatial data is very difficult due to the complexity of spatial data types,…

Databases · Computer Science 2018-10-23 Sanket Vaibhav Mehta , Shagun Sodhani , Dhaval Patel

Querying with text-image-based search engines in highly homogeneous domain-specific image collections is challenging for users, as they often struggle to provide descriptive text queries. For example, in an underwater domain, users can…

Multimedia · Computer Science 2025-06-12 Bastian Jäckl , Vojtěch Kloda , Daniel A. Keim , Jakub Lokoč

In the search and retrieval of multimedia objects, it is impractical to either manually or automatically extract the contents for indexing since most of the multimedia contents are not machine extractable, while manual extraction tends to…

Information Retrieval · Computer Science 2019-11-25 Nikki Lijing Kuang , Clement H. C. Leung

With the rapid development of location-based social networks (LBSNs), spatial item recommendation has become an important means to help people discover attractive and interesting venues and events, especially when users travel out of town.…

Information Retrieval · Computer Science 2015-03-13 Weiqing Wang , Hongzhi Yin , Ling Chen , Yizhou Sun , Shazia Sadiq , Xiaofang Zhou

In Geographical Information search, map visualization can challenge the user because results can consist of a large set of heterogeneous items, increasing visual complexity. We propose a novel visualization model to address this issue. Our…

Human-Computer Interaction · Computer Science 2020-04-02 Liliana Ardissono , Matteo Delsanto , Maurizio Lucenteforte , Noemi Mauro , Adriano Savoca , Daniele Scanu

We propose an efficient pipeline for large-scale landmark image retrieval that addresses the diversity of the dataset through two-stage discriminative re-ranking. Our approach is based on embedding the images in a feature-space using a…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Shuhei Yokoo , Kohei Ozaki , Edgar Simo-Serra , Satoshi Iizuka

Image geolocation is a critical task in various image-understanding applications. However, existing methods often fail when analyzing challenging, in-the-wild images. Inspired by the exceptional background knowledge of multimodal language…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Zhiqiang Wang , Dejia Xu , Rana Muhammad Shahroz Khan , Yanbin Lin , Zhiwen Fan , Xingquan Zhu
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