Title
Complex Event Detection Via Event Oriented Dictionary Learning
Abstract
Complex event detection is a retrieval task with the goal of finding videos of a particular event in a large-scale unconstrained internet video archive, given example videos and text descriptions. Nowadays, different multimodal fusion schemes of low-level and high-level features are extensively investigated and evaluated for the complex event detection task. However, how to effectively select the high-level semantic meaningful concepts from a large pool to assist complex event detection is rarely studied in the literature. In this paper, we propose two novel strategies to automatically select semantic meaningful concepts for the event detection task based on both the events-kit text descriptions and the concepts high-level feature descriptions. Moreover, we introduce a novel event oriented dictionary representation based on the selected semantic concepts. Towards this goal, we leverage training samples of selected concepts from the Semantic Indexing (SIN) dataset with a pool of 346 concepts, into a novel supervised multi-task dictionary learning framework. Extensive experimental results on TRECVID Multimedia Event Detection (MED) dataset demonstrate the efficacy of our proposed method.
Year
Venue
Field
2015
PROCEEDINGS OF THE TWENTY-NINTH AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE
Dictionary learning,Internet video,Computer science,TRECVID,Complex event processing,Search engine indexing,Artificial intelligence,Machine learning
DocType
Citations 
PageRank 
Conference
12
0.49
References 
Authors
19
7
Name
Order
Citations
PageRank
Yan Yan169131.13
Yi Yang26873271.72
Haoquan Shen3863.93
Deyu Meng42025105.31
Gaowen Liu536311.87
Alexander G. Hauptmann67472558.23
Nicu Sebe77013403.03