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Publications

List of recent IR publications authored by our collaborating members.

2011

Bag-of-Visual-Words vs Global Image Descriptors on Two-Stage Multimodal Retrieval. Konstantinos Zagoris, Savvas Chatzichristofis, and Avi Arampatzis. In: Proceedings of the 34rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, July 24-28, Beijing, China, 2011. To appear. | Acceptance rate: 274 posters submitted, 89 accepted, about a 32.5% acceptance rate.

The TREC Files: the (ground) truth is out there. Savvas Chatzichristofis, Konstantinos Zagoris, and Avi Arampatzis. In: Proceedings of the 34rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, July 24-28, Beijing, China, 2011. To appear. | Acceptance rate: 35 demos submitted, 15 accepted, about a 42.8% acceptance rate.

Enhancing Deniability against Query-logs. Avi Arampatzis, Pavlos Efraimidis, and George Drosatos. In: Proceedings of the 33rd European Conference on Information Retrieval, ECIR 2011, Dublin, Ireland, 18-21 April, 2011. PDF | Acceptance rate: 45 long papers accepted, about 20% acceptance rate.

Fusion vs Two-Stage for Multimodal Retrieval. Avi Arampatzis, Konstantinos Zagoris, and Savvas A. Chatzichristofis. In: Proceedings of the 33rd European Conference on Information Retrieval, ECIR 2011, Dublin, Ireland, 18-21 April, 2011. PDF | Acceptance rate: 26 posters accepted, about 32% acceptance rate.

Dynamic Two-Stage Image Retrieval from Large Multimodal Databases. Avi Arampatzis, Konstantinos Zagoris, and Savvas A. Chatzichristofis. In: Proceedings of the 33rd European Conference on Information Retrieval, ECIR 2011, Dublin, Ireland, 18-21 April, 2011. PDF | Acceptance rate: 45 long papers accepted, about 20% acceptance rate.

Modeling Score Distributions in Information Retrieval. Avi Arampatzis and Stephen Robertson. Information Retrieval, Volume 14, Issue 1, pages 26-46, 2011. © Springer Netherlands.
PDFBibTeX | 2009 Impact Factor: 1.841

2010

Investigating the Behavior of Compact Composite Descriptors in Early Fusion, Late Fusion and Distributed Image Retrieval. Savvas A. Chatzichristofis, Avi Arampatzis, and Yiannis S. Boutalis. Radioengineering, volume 19, number 4, pages 725-733, December 2010. PDF | 2010 Impact Factor: 0.503

DUTH does Probabilities of Relevance at the Legal Track. Dim P. Papadopoulos, Vicky S. Kalogeiton, and Avi Arampatzis. In: Proceedings of the Nineteenth Text REtrieval Conference (TREC 2010), Gaithersburg, Maryland, November 16-19, 2010. Department of Commerce, National Institute of Standards and Technology (NIST), Special Publication. PDF

Multimedia Search with Noisy Modalities: Fusion and Multistage Retrieval. Avi Arampatzis, Savvas A. Chatzichristofis, and Konstantinos Zagoris. In: CLEF (Notebook Papers/LABs/Workshops), 22-23 September, Padua, Italy, 2010. PDF, BibTeX

www.MMRetrieval.net: A Multimodal Search Engine. Konstantinos Zagoris, Avi Arampatzis, and Savvas A. Chatzichristofis. In: Proceedings of the 3rd International Conference on SImilarity Search and APplications, SISAP 2010, Istanbul, Turkey, September 18-19, 2010. © Association for Computing Machinery (ACM). PDF, BibTeX

Accelerating Image Retrieval using Binary Haar Wavelet Transform on the Color and Edge Directivity Descriptor. Savvas Α. Chatzichristofis, Yiannis S. Boutalis, and Avi Arampatzis. In: Proceedings of the Fifth International Multi-Conference on Computing in the Global Information Technology, ICCGI 2010, IEEE Computer Society, 2010. PDF | Acceptance rate: about a 30% for full papers. BEST PAPERS AWARD

Late Fusion of Compact Composite Descriptors for Retrieval from Heterogeneous Image Databases. Savvas A. Chatzichristofis and Avi Arampatzis. In: Proceedings of the 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010. PDFBibTeX | Acceptance rate: 310 posters submitted, 99 accepted, about a 32% acceptance rate.

Simulating signal and noise queries for score normalization in distributed IR. Avi Arampatzis and Jaap Kamps. In: Proceedings of the 10th Dutch-Belgian Information Retrieval Workshop (DIR 2010), Radboud University Nijmegen, The Netherlands, March 25, 2010. Online Proceedings at the DIR-2010 website

An Empirical Study of Query Specificity. Avi Arampatzis and Jaap Kamps. In: C. Gurrin et al. (Eds.): ECIR 2010, LNCS 5993, pp. 594–597, 2010. © Springer-Verlag Berlin Heidelberg 2010 PDF, BibTeX | Acceptance rate: 68 posters submitted, 23 accepted, about a 34% acceptance rate.

2009

A Signal to Noise Approach to Score Normalization. Avi Arampatzis and Jaap Kamps. In: Proceedings of the 18th ACM Conference on Information and Knowledge Management, CIKM 2009, Hong Kong, China, November 2-6, 2009. © Association for Computing Machinery (ACM). PDF, BibTeX | Acceptance rate: 847 full papers submitted, 123 accepted, about a 14% acceptance rate.

Score Distributions in Information Retrieval. Avi Arampatzis, Stephen Robertson, and Jaap Kamps. In: L. Azzopardi et al. (Eds.): ICTIR 2009, LNCS 5766, pp. 139–151, 2009. © Springer-Verlag Berlin Heidelberg 2009. PDF, BibTeX | Acceptance rate: about a 21% for full papers.

Where to Stop Reading a Ranked List: Threshold Optimization using Truncated Score Distributions. Avi Arampatzis, Jaap Kamps, and Stephen Robertson. In: Proceedings of the 32st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2009, Boston, July 19-23, 2009. © Association for Computing Machinery (ACM). PDF, BibTeX | Acceptance rate: 497 full papers submitted, 85 accepted, about a 17% acceptance rate.

2008

A Study of Query Length. Avi Arampatzis and Jaap Kamps. In: Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2008, Singapore, July 20-24, 2008. PDF, BibTeX, HTML | Acceptance rate: 173 posters submitted, 91 accepted, about a 53% acceptance rate.

Where to Stop Reading a Ranked List? Avi Arampatzis and Jaap Kamps. In: Proceedings of the Seventeenth Text REtrieval Conference (TREC 2008), Gaithersburg, Maryland, November  18-21, 2008. Department of Commerce, National Institute of Standards and Technology (NIST), Special Publication 500-277. PDF, BibTeX, HTML

For Avi Arampatzis’ older publications click here.