DIVERS 2011 - International ACM RecSys Workshop on Novelty and Diversity in Recommender Systems - DiveRS 2011

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Category DIVERS 2011

Deadline: July 25, 2011 | Date: October 27, 2011

Venue/Country: Chicago, U.S.A

Updated: 2011-05-05 17:23:13 (GMT+9)

Call For Papers - CFP

Novelty and Diversity in Recommender Systems - DiveRS 2011

Chicago, IL, USA, 23 or 27 October 2011

http://ir.ii.uam.es/divers2011

Scope

Most research and development efforts in the Recommender Systems field

have been focused on accuracy in predicting and matching user

interests. However there is a growing realization that there is more

than accuracy to the practical effectiveness and added-value of

recommendation. In particular, novelty and diversity have been

identified as key dimensions of recommendation utility in real

scenarios, and a fundamental research direction to keep making

progress in the field. Novelty is indeed essential to recommendation:

in many, if not most scenarios, the whole point of recommendation is

inherently linked to a notion of discovery, as recommendation makes

most sense when it exposes the user to a relevant experience that she

would not have found, or thought of by herself ?obvious, however

accurate recommendations are generally of little use. Not only does a

varied recommendation provide in itself for a richer user experience.

Given the inherent uncertainty in user interest prediction ?since it

is based on implicit, incomplete evidence of interests, where the

latter are moreover subject to change?, avoiding a too narrow array of

choice is generally a good approach to enhance the chances that the

user is pleased by at least some recommended item. Sales diversity may

enhance businesses as well, leveraging revenues from market niches. It

is easy to increase novelty and diversity by giving up accuracy; the

challenge is to enhance these aspects while still achieving a fair

match of the user's interests. The goal is thus generally to enhance

the balance in this trade-off, rather than just a diversity or novelty

increase.

DiveRS 2011 aims to gather researchers and practitioners interested in

the role of novelty and diversity in recommender systems. The workshop

seeks to advance towards a better understanding of what novelty and

diversity are, how they can improve the effectiveness of

recommendation methods and the utility of their outputs. We aim to

identify open problems, relevant research directions, and

opportunities for innovation in the recommendation business. The

workshop seeks to stir further interest for these topics in the

community, and stimulate the research and progress in this area.

The workshop welcomes the participation of researchers, students, and

practitioners in the Recommender Systems community and related areas

such as Information Retrieval, Data Mining, Machine Learning, and

Human-Computer Interaction, working in different application domains,

working on or interested in the workshop topics.

Topics

We invite the submission of papers reporting original research,

studies, advances, experiences, or work in progress in the scope of

novelty and diversity in Recommender Systems. The topics the workshop

seeks to address include ?though need not be limited to? the

following:

* Modeling novelty and diversity in recommender systems.

- Theoretical foundation for novelty and diversity.

- Recommendation novelty and diversity models.

- Popularity, risk, surprisal, serendipity, freshness, discovery.

- Link to diversity models in Information Retrieval.

* Novelty and diversity enhancement.

- Diversification methods.

- Recommendation of long-tail and difficult items, cold-start problem.

- Individual vs. global diversity.

- Machine Learning for novelty and diversity.

* Novelty and diversity across recommendations.

- Novelty and diversity in sequential recommendation.

- Novelty and diversity in interactive recommendation.

- Aggregate diversity.

- Novelty and diversity in time and context.

- Novelty and trust.

* Novelty and diversity evaluation.

- Experimental methodologies and design.

- Novelty and diversity metrics.

- Datasets.

- User studies.

* Business perspective on novelty and diversity.

Submission

Two submission types are accepted: technical papers of up to 8 pages,

and short position papers up to 4 pages. Each paper will be evaluated

by at least two reviewers from the Programme Committee. The papers

will be evaluated for their originality, contribution significance,

soundness, clarity, and overall quality. Within a required quality

standard, position papers will be appreciated for presenting new

perspectives and insights, and their potential for provoking thought

and stimulating discussion.

All submissions shall adhere to the standard ACM SIG proceedings

format: http://www.acm.org/sigs/publications/proceedings-templates.

The accepted papers will be published in a specific volume for the

workshop in the ACM Proceedings series.

Submissions shall be sent as a pdf file through the online submission

system is now open at:

http://www.easychair.org/conferences/?conf=divers2011.

Important dates:

Paper submission deadline: 25 July 2011.

Author notification: 19 August 2011.

Camera ready version due: 12 September 2011.

Workshop: 23 or 27 October 2011.

Programme Committee

Xavier Amatriain, Telefónica R&D, Spain

Leif Azzopardi, University of Glasgow, UK

Iván Cantador, Universidad Autónoma de Madrid, Spain

Licia Capra, University College London, UK

Oscar Celma, BMAT, Spain

Charles Clarke, University of Waterloo, Canada

Sreenivas Gollapudi, Microsoft Research, USA

Neil Hurley, University College Dublin, Ireland

Oren Kurland, Technion, Israel

Neal Lathia, University College London, UK

Hao Ma, Microsoft Research, USA

Qiaozhu Mei, University of Michigan, USA

Jérôme Picault, Bell Labs, Alcatel-Lucent, France

Filip Radlinski, Microsoft Research, Canada

Davood Rafiei, University of Alberta, Canada

Francesco Ricci, Free University of Bozen-Bolzano, Italy

David Vallet, Universidad Autónoma de Madrid, Spain

Paulo Villegas, Telefónica R&D, Spain

ChengXiang Zhai, University of Illinois at Urbana-Champaign, USA

Tao Zhou, University of Electronic Science and Technology of China, China

Jianhan Zhu, True Knowledge, UK

Organizers

Pablo Castells, Universidad Autónoma de Madrid, Spain

Jun Wang, University College London, UK

Dell Zhang, Birkbeck, University of London, UK

Rubén Lara, Telefónica Investigación y Desarrollo, Spain

Contact email: divers2011.workshopgmail.com

More info at: http://ir.ii.uam.es/divers2011

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