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Insight Centre for Data Analytics (DCU) at TRECVid 2014: instance search and semantic indexing tasks

McGuinness, Kevin orcid logoORCID: 0000-0003-1336-6477, Mohedano, Eva, Zhang, Zhenxing, Hu, Feiyan orcid logoORCID: 0000-0001-7451-6438, Albatal, Rami orcid logoORCID: 0000-0002-9269-8578, Gurrin, Cathal orcid logoORCID: 0000-0003-2903-3968, O'Connor, Noel E. orcid logoORCID: 0000-0002-4033-9135, Smeaton, Alan F. orcid logoORCID: 0000-0003-1028-8389, Salvador, Amaia, Giró-i-Nieto, Xavier orcid logoORCID: 0000-0002-9935-5332 and Ventura, Carles (2014) Insight Centre for Data Analytics (DCU) at TRECVid 2014: instance search and semantic indexing tasks. In: TRECVid 2014, 8-12 Nov 2014, Orlando FL..

Insight-DCU participated in the instance search (INS) and semantic indexing (SIN) tasks in 2014. Two very different approaches were submitted for instance search, one based on features extracted using pre-trained deep convolutional neural networks (CNNs), and another based on local SIFT features, large vocabulary visual bag-of-words aggregation, inverted index-based lookup, and geometric verification on the top-N retrieved results. Two interactive runs and two automatic runs were submitted, the best interactive runs achieved a mAP of 0.135 and the best automatic 0.12. Our semantic indexing runs were based also on using convolutional neural network features, and on Support Vector Machine classifiers with linear and RBF kernels. One run was submitted to the main task, two to the no annotation task, and one to the progress task. Data for the no-annotation task was gathered from Google Images and ImageNet. The main task run has achieved a mAP of 0.086, the best no-annotation runs had a close performance to the main run by achieving a mAP of 0.080, while the progress run had 0.043.
Item Type:Conference or Workshop Item (Poster)
Event Type:Workshop
Subjects:Computer Science > Machine learning
Engineering > Signal processing
Computer Science > Multimedia systems
Computer Science > Information retrieval
Computer Science > Digital video
Computer Science > Image processing
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing
Research Institutes and Centres > INSIGHT Centre for Data Analytics
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland (SFI) under grant number SFI/12/RC/2289
ID Code:20287
Deposited On:04 Nov 2014 12:21 by Dr. Kevin McGuinness . Last Modified 19 May 2021 11:31

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