International Journal of Computer Vision
Automatic extraction of roads from aerial images based on scale space and snakes
Machine Vision and Applications
Using Multivariate Clustering to Characterize Ecoregion Borders
Computing in Science and Engineering
Schematizing Maps: Simplification of Geographic Shape by Discrete Curve Evolution
Spatial Cognition II, Integrating Abstract Theories, Empirical Studies, Formal Methods, and Practical Applications
Communications of the ACM - A game experience in every application
A linear-time component-labeling algorithm using contour tracing technique
Computer Vision and Image Understanding
Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
Content-based multimedia information retrieval: State of the art and challenges
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Generating summaries and visualization for large collections of geo-referenced photographs
MIR '06 Proceedings of the 8th ACM international workshop on Multimedia information retrieval
Optimisation methods for ranking functions with multiple parameters
CIKM '06 Proceedings of the 15th ACM international conference on Information and knowledge management
World explorer: visualizing aggregate data from unstructured text in geo-referenced collections
Proceedings of the 7th ACM/IEEE-CS joint conference on Digital libraries
Towards automatic extraction of event and place semantics from flickr tags
SIGIR '07 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval
Proceedings of the 15th international conference on Multimedia
Content visualization and management of geo-located image databases
CHI '08 Extended Abstracts on Human Factors in Computing Systems
Generating diverse and representative image search results for landmarks
Proceedings of the 17th international conference on World Wide Web
Flickr tag recommendation based on collective knowledge
Proceedings of the 17th international conference on World Wide Web
Speeded-Up Robust Features (SURF)
Computer Vision and Image Understanding
Modelling vague places with knowledge from the Web
International Journal of Geographical Information Science - Digital Gazetteer Research
MM '08 Proceedings of the 16th ACM international conference on Multimedia
Methods for extracting place semantics from Flickr tags
ACM Transactions on the Web (TWEB)
A Neural-Network-Based Geographic Tendency Visualization
WI-IAT '08 Proceedings of the 2008 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Volume 01
Placing flickr photos on a map
Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval
Conceptualization of place via spatial clustering and co-occurrence analysis
Proceedings of the 2009 International Workshop on Location Based Social Networks
Online Geovisualization with Fast Kernel Density Estimator
WI-IAT '09 Proceedings of the 2009 IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology - Volume 01
Global annotation on georeferenced photographs
Proceedings of the ACM International Conference on Image and Video Retrieval
A visual analysis of the relationship between word concepts and geographical locations
Proceedings of the ACM International Conference on Image and Video Retrieval
Bottom-Up Gazetteers: Learning from the Implicit Semantics of Geotags
GeoS '09 Proceedings of the 3rd International Conference on GeoSpatial Semantics
The Probabilistic Relevance Framework: BM25 and Beyond
Foundations and Trends in Information Retrieval
Extraction of Places Related to Flickr Tags
Proceedings of the 2010 conference on ECAI 2010: 19th European Conference on Artificial Intelligence
A Geometric Pattern-based Method to Build Hierarchies of Geo-Referenced Tags
SOCIALCOM '10 Proceedings of the 2010 IEEE Second International Conference on Social Computing
Finding locations of flickr resources using language models and similarity search
Proceedings of the 1st ACM International Conference on Multimedia Retrieval
Modeling and Recognition of Landmark Image Collections Using Iconic Scene Graphs
International Journal of Computer Vision
Clustering and Visualizing Geographic Data Using Geo-tree
WI-IAT '11 Proceedings of the 2011 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Volume 01
MM '11 Proceedings of the 19th ACM international conference on Multimedia
Learning boundaries of vague places from noisy annotations
Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Computer Vision and Image Understanding
Geo-Location estimation of flickr images: social web based enrichment
ECIR'12 Proceedings of the 34th European conference on Advances in Information Retrieval
Exploring and browsing photos through characteristic geographic tag regions
Proceedings of the 20th ACM international conference on Multimedia
Methods for extracting place semantics from Flickr tags
ACM Transactions on the Web (TWEB)
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We propose a novel algorithm for uncovering the colloquial boundaries of locally characterizing regions present in collections of labeled geospatial data. We address the problem by first modeling the data using scale-space theory, allowing us to represent it simultaneously across different scales as a family of increasingly smoothed density distributions. We then derive region boundaries by applying localized label weighting and image processing techniques to the scale-space representation of each label. Important insights into the data can be acquired by visualizing the shape and size of the resulting boundaries for each label at multiple scales. We demonstrate our technique operating at scale by discovering the boundaries of the most geospatially salient tags associated with a large collection of georeferenced photos from Flickr and compare our characterizing regions that emerge from the data with those produced by a recent technique from the research literature.