Locality-sensitive hashing scheme based on p-stable distributions
SCG '04 Proceedings of the twentieth annual symposium on Computational geometry
Recognizing Human Actions: A Local SVM Approach
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 3 - Volume 03
Live sports event detection based on broadcast video and web-casting text
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
Multi-probe LSH: efficient indexing for high-dimensional similarity search
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
MapReduce: simplified data processing on large clusters
Communications of the ACM - 50th anniversary issue: 1958 - 2008
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
A posteriori multi-probe locality sensitive hashing
MM '08 Proceedings of the 16th ACM international conference on Multimedia
LSH banding for large-scale retrieval with memory and recall constraints
ICASSP '09 Proceedings of the 2009 IEEE International Conference on Acoustics, Speech and Signal Processing
Proceedings of the 6th International Conference on Semantic Systems
A Joint Content-Event Model for Event-Centric Multimedia Indexing
ICSC '10 Proceedings of the 2010 IEEE Fourth International Conference on Semantic Computing
Analysing Facebook features to support event detection for photo-based Facebook applications
Proceedings of the 2nd ACM International Conference on Multimedia Retrieval
Distributed KNN-graph approximation via hashing
Proceedings of the 2nd ACM International Conference on Multimedia Retrieval
Heterogeneous features and model selection for event-based media classification
Proceedings of the 3rd ACM conference on International conference on multimedia retrieval
Jointly exploiting visual and non-visual information for event-related social media retrieval
Proceedings of the 3rd ACM conference on International conference on multimedia retrieval
EventEnricher: a novel way to collect media illustrating events
Proceedings of the 3rd ACM conference on International conference on multimedia retrieval
Proceedings of the 24th ACM Conference on Hypertext and Social Media
Hi-index | 0.00 |
Organizing media according to real-life events is attracting interest in the multimedia community. Event-centric indexing approaches are very promising for discovering more complex relationships between data. In this paper we introduce a new visual-based method for retrieving events in photo collections, typically in the context of User Generated Contents. Given a query event record, represented by a set of photos, our method aims to retrieve other records of the same event, typically generated by distinct users. Similarly to what is done in state-of-the-art object retrieval systems, we propose a two-stage strategy combining an efficient visual indexing model with a spatiotemporal verification re-ranking stage to improve query performance. For efficiency and scalability concerns, we implemented the proposed method according to the MapReduce programming model using Multi-Probe Locality Sensitive Hashing. Experiments were conducted on LastFM-Flickr dataset for distinct scenarios, including event retrieval, automatic annotation and tags suggestion. As one result, our method is able to suggest the correct event tag over 5 suggestions with a 72% success rate.