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 Paul H Lewis

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Average citations per article4.69
Citation Count333
Publication count71
Publication years1988-2014
Available for download30
Average downloads per article279.47
Downloads (cumulative)8,384
Downloads (12 Months)264
Downloads (6 Weeks)23
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71 results found Export Results: bibtexendnoteacmrefcsv

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1
August 2014 Multimedia Tools and Applications: Volume 71 Issue 3, August 2014
Publisher: Kluwer Academic Publishers
Bibliometrics:
Citation Count: 4

The ability to handle very large amounts of image data is important for image analysis, indexing and retrieval applications. Sadly, in the literature, scalability aspects are often ignored or glanced over, especially with respect to the intricacies of actual implementation details. In this paper we present a case-study showing how ...
Keywords: Hadoop, MapReduce, Bag of visual words, Image retrieval

2 published by ACM
April 2014 ICMR '14: Proceedings of International Conference on Multimedia Retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 1,   Downloads (12 Months): 16,   Downloads (Overall): 110

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Knowing the location where a photograph was taken provides us with data that could be useful in a wide spectrum of applications. With the advance of digital cameras, and with many users exchanging their digital cameras for GPS-enabled mobile phones, photographs annotated with geographical locations are becoming ever more present ...
Keywords: Geo-Location Prediction, Geo-Placing, Multimodal Analysis, Geo-Localisation Image Analysis, Tag Analysis

3 published by ACM
April 2013 ICMR '13: Proceedings of the 3rd ACM conference on International conference on multimedia retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 0,   Downloads (12 Months): 12,   Downloads (Overall): 126

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Millions of images are tweeted every day, yet very little research has looked at the non-textual aspect of social media communication. In this work we have developed a system to analyse streams of image data. In particular we explore trends in similar, related, evolving or even duplicated visual artefacts in ...
Keywords: near-duplicate image detection, twitter analysis, stream analysis, trend analysis

4 published by ACM
April 2013 ICMR '13: Proceedings of the 3rd ACM conference on International conference on multimedia retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 1,   Downloads (12 Months): 18,   Downloads (Overall): 119

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Search result diversification can increase user satisfaction in answering a particular information need. There are many ways of diversify search results. In some cases the user has a clear idea of how they would like to see their results diversified. This work presents a system that is capable of diversifying ...
Keywords: image search, result diversification, diversity

5 published by ACM
November 2012 CrowdSens '12: Proceedings of the 1st international workshop on Multimodal crowd sensing
Publisher: ACM
Bibliometrics:
Citation Count: 5
Downloads (6 Weeks): 4,   Downloads (12 Months): 31,   Downloads (Overall): 427

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Twitter is a popular tool for publishing potentially interesting information about people's opinions, experiences and news. Mobile devices allow people to publish tweets during real-time events. It is often difficult to identify the subject of a tweet because Twitter users often write using highly unstructured language with many typographical errors. ...
Keywords: semantic web, event detection, query expansion, twitter

6 published by ACM
June 2012 NHT '12: Proceedings of the 2nd workshop on Narrative and hypertext
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 0,   Downloads (12 Months): 9,   Downloads (Overall): 157

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Automatic capture of life logging data can be extremely information rich, large and varied. Extracting a narrative from this data can be difficult because not all of the data is conducive to producing interesting narratives. Life logging data can be enriched by linking to the Semantic Web and narratives can ...
Keywords: semantic web, narrative, life logging

7 published by ACM
June 2012 ICMR '12: Proceedings of the 2nd ACM International Conference on Multimedia Retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 4
Downloads (6 Weeks): 0,   Downloads (12 Months): 7,   Downloads (Overall): 207

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ImageTerrier is a novel easily extensible open-source, scalable, high-performance search engine platform for content-based image retrieval applications. The platform provides a comprehensive test-bed for experimenting with bag-of-visual-words image retrieval techniques. It incorporates a state-of-the-art implementation of the single-pass indexing technique for constructing inverted indexes and is capable of producing highly ...
Keywords: visual-terms, scalability, evaluation, image indexing

8 published by ACM
June 2011 WebSci '11: Proceedings of the 3rd International Web Science Conference
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 2,   Downloads (12 Months): 9,   Downloads (Overall): 61

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This paper introduces a novel lifelogging system. The novelty of our system is that it uses open linked data to reduce the burden on the user to an absolute minimum by combining the user's private logs with data obtained automatically from the web. This in turn is annotated with data ...

9 published by ACM
April 2011 ICMR '11: Proceedings of the 1st ACM International Conference on Multimedia Retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 3,   Downloads (12 Months): 23,   Downloads (Overall): 285

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The SIFT keypoint descriptor is a powerful approach to encoding local image description using edge orientation histograms. Through codebook construction via k -means clustering and quantisation of SIFT features we can achieve image retrieval treating images as bags-of-words. Intensity inversion of images results in distinct SIFT features for a single ...
Keywords: evaluation, image content analysis, visual-words, visual-terms

10
July 2010 TextGraphs-5: Proceedings of the 2010 Workshop on Graph-based Methods for Natural Language Processing
Publisher: Association for Computational Linguistics
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 0,   Downloads (12 Months): 8,   Downloads (Overall): 125

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We present a brief overview of the way in which image analysis, coupled with associated collateral text, is being used for auto-annotation and sentiment analysis. In particular, we describe our approach to auto-annotation using the graph-theoretic dominant set clustering algorithm and the annotation of images with sentiment scores from SentiWordNet. ...

11
May 2010 Computers and Security: Volume 29 Issue 3, May, 2010
Publisher: Elsevier Advanced Technology Publications
Bibliometrics:
Citation Count: 1

Realising the vision of pervasive healthcare will generate new challenges to system security. Such challenges are fundamentally different from issues and problems that we face in centralised approaches as well as non-clinical scenarios. In this paper, we reflect upon our experiences in the HealthAgents project wherein a prototype system was ...
Keywords: Lightweight Coordination Calculus (LCC), Interaction model, Multi-agent system (MAS), Decision support system (DSS), Distributed clinical information system, Security model

12 published by ACM
March 2010 MIR '10: Proceedings of the international conference on Multimedia information retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 4
Downloads (6 Weeks): 0,   Downloads (12 Months): 9,   Downloads (Overall): 249

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The availability of a large, freely redistributable set of high-quality annotated images is critical to allowing researchers in the area of automatic annotation, generic object recognition and concept detection to compare results. The recent introduction of the MIR Flickr dataset allows researchers such access. A dataset by itself is not ...
Keywords: image content analysis, semantic image retrieval, visual-terms, semantic spaces, automatic annotation, evaluation

13 published by ACM
December 2009 iiWAS '09: Proceedings of the 11th International Conference on Information Integration and Web-based Applications & Services
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 0,   Downloads (12 Months): 0,   Downloads (Overall): 97

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With the increasing amount of multimedia content on the web added as user generated content in Web 2.0 websites, conventional multimedia information retrieval is presented with new challenges. It is no longer possible to rely only on meta-data based retrieval but to consider also content based techniques combined with the ...
Keywords: image semantic description, semantic web, knowledge base, natural language analysis, ontology

14 published by ACM
November 2009 ACM Transactions on Information Systems (TOIS): Volume 27 Issue 4, November 2009
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 1,   Downloads (12 Months): 15,   Downloads (Overall): 648

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The current trend in distributed systems is towards service-based integration. This article describes an ontology-driven framework implemented to provide knowledge management for data of different modalities, with multimedia processing, annotation, and reasoning provided by remote services. The framework was developed in, and is presented in the context of, the Medical ...
Keywords: breast cancer, ontologies, services, health, Semantic Web, descision support

15
June 2009 Applied Intelligence: Volume 30 Issue 3, June 2009
Publisher: Kluwer Academic Publishers
Bibliometrics:
Citation Count: 14

We present an agent-based distributed decision support system for the diagnosis and prognosis of brain tumors developed by the HealthAgents project. HealthAgents is a European Union funded research project, which aims to enhance the classification of brain tumors using such a decision support system based on intelligent agents to securely ...
Keywords: Computational intelligence, Medical informatics, Machine learning, Magnetic resonance, Medical ontologies, Agents, Decision support systems, Pattern recognition

16
May 2009 Image and Vision Computing: Volume 27 Issue 6, May, 2009
Publisher: Butterworth-Heinemann
Bibliometrics:
Citation Count: 0

The motivation for research on low-quality images comes from a requirement by some museums to respond to queries for pictorial information, submitted in the form of fax messages or other low-quality monochrome images of works of art. The museums have databases of high-resolution images of their artefact collections and the ...
Keywords: Content-based image retrieval, Wavelet transform, Low-quality image analysis

17
September 2008 SAFECOMP '08: Proceedings of the 27th international conference on Computer Safety, Reliability, and Security
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 2

Distributed decision support systems designed for healthcare use can benefit from services and information available across a decentralised environment. The sophisticated nature of collaboration among involved partners who contribute services or sensitive data in this paradigm, however, demands careful attention from the beginning of designing such systems. Apart from the ...
Keywords: Security Model, Clinical Information System, Multi-Agent System

18 published by ACM
July 2008 CIVR '08: Proceedings of the 2008 international conference on Content-based image and video retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 4
Downloads (6 Weeks): 0,   Downloads (12 Months): 6,   Downloads (Overall): 329

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In information retrieval, sub-space techniques are usually used to reveal the latent semantic structure of a data-set by projecting it to a low dimensional space. Non-negative matrix factorisation (NMF), which generates a non-negative representation of data through matrix decomposition, is one such technique. It is different from other similar techniques, ...
Keywords: non-negative matrix factorisation, automatic image annotation, object detection

19 published by ACM
July 2008 CIVR '08: Proceedings of the 2008 international conference on Content-based image and video retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 11
Downloads (6 Weeks): 1,   Downloads (12 Months): 9,   Downloads (Overall): 308

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Semantic spaces encode similarity relationships between objects as a function of position in a mathematical space. This paper discusses three different formulations for building semantic spaces which allow the automatic-annotation and semantic retrieval of images. The models discussed in this paper require that the image content be described in the ...
Keywords: semantic image retrieval, visual-terms, probabilistic latent semantic analysis, semantic spaces, evaluation, latent semantic analysis

20
June 2008 Proceedings of the 2008 conference on ECAI 2008: 18th European Conference on Artificial Intelligence
Publisher: IOS Press
Bibliometrics:
Citation Count: 1

In this paper we introduce a new graph based bidding language for combinatorial auctions. In our language, each bidder submits to the arbitrator a generalized flow network (netbid) representing her bids. The interpretation of the winner determination problem as an aggregation of individual preferences represented as flowbids allows building an ...



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