Machine Learning
A Comparison of Several Approaches to Missing Attribute Values in Data Mining
RSCTC '00 Revised Papers from the Second International Conference on Rough Sets and Current Trends in Computing
An empirical comparison of supervised learning algorithms
ICML '06 Proceedings of the 23rd international conference on Machine learning
An introduction to ROC analysis
Pattern Recognition Letters - Special issue: ROC analysis in pattern recognition
World-scale mining of objects and events from community photo collections
CIVR '08 Proceedings of the 2008 international conference on Content-based image and video retrieval
Introduction to Information Retrieval
Introduction to Information Retrieval
Less talk, more rock: automated organization of community-contributed collections of concert videos
Proceedings of the 18th international conference on World wide web
IEEE Transactions on Knowledge and Data Engineering
Event detection from flickr data through wavelet-based spatial analysis
Proceedings of the 18th ACM conference on Information and knowledge management
NUS-WIDE: a real-world web image database from National University of Singapore
Proceedings of the ACM International Conference on Image and Video Retrieval
Earthquake shakes Twitter users: real-time event detection by social sensors
Proceedings of the 19th international conference on World wide web
Proceedings of the 6th International Conference on Semantic Systems
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
LIBSVM: A library for support vector machines
ACM Transactions on Intelligent Systems and Technology (TIST)
Large scale visual-based event matching
Proceedings of the 1st ACM International Conference on Multimedia Retrieval
Event-based classification of social media streams
Proceedings of the 2nd ACM International Conference on Multimedia Retrieval
Categorization of a collection of pictures into structured events
Proceedings of the 2nd ACM International Conference on Multimedia Retrieval
Social event detection with interaction graph modeling
Proceedings of the 20th ACM international conference on Multimedia
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With the rapid development of social media sites, a lot of user generated content is being shared in the Web, leading to new challenges for traditional media retrieval techniques. An event describes the happening at a specific time and place in real-world, and it is one of the most important cues for people to recall past memories. The reminder value of an event makes it extremely helpful in organizing human life. Thus, organizing media by events has recently drawn much attention within the multimedia research community. In this paper, we focus on two fundamental problems related to event based social media analysis: the study of feature importance for modeling the relation between events and media, and how to deal with missing and erroneous metadata often present in social media data. These issues are studied within an event-based media classification framework. Different learning approaches are employed to train the event models on different features. We find, through experiments on a large set of events, that the best discriminant features are tags, spatial and temporal feature. We address the missing value problem by extending the feature with an extra attribute to indicate if the values are missing. Promising results are achieved demonstrating the effectiveness of the proposed method.