IIiX conference in Regensburg, Germany

From 26-30 of August 2014, TUB participated at the Information Interaction in Context (IIiX) conference to present their short papers “Shedding Light on a Living Lab: The CLEF-NEWSREEL Open Recommendation Platform” and “Users’ Reading Habits in Online News Portals”. Both papers are in the context of stream recommendation. Participants of IIiX are researchers working on information access, human-computer interaction, information studies and other related fields.

The 22nd Conference on User Modelling, Adaptation and Personalization – UMAP 2014

umap2014The conference took place in Aalborg (7-11 July 2014), Denmark, and gathered 150 international researchers in the fields of user modelling, human computer interaction, recommender systems and personalization. CrowdRec presented one paper at the project networking workshop UMAP Project Synergy and one paper at the main conference.

The workshop paper, titled “User-Item Reciprocity in Recommender Systems:Incentivizing the Crowd”, gave an overview of CrowdRec’s intentions and and ongoing research. During the workshop, other international projects were presented in order to facilitate project networking between related projects.

The conference paper, titled “The Magic Barrier of Recommender Systems – No Magic, Just Ratings”, addresses evaluation-related issues in recommender systems.

Living Labs Challenge Workshop

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This event was organized by the University of Amsterdam on June 6th, 2014. Invited researchers in information retrieval and recommendation discussed issues related to in situ evaluation of information access systems. During the workshop, CrowdRec partners from TUB presented a keynote on live evaluation of recommender systems. TUD partners participated in the workshop as benchmarking experts (organizers of RecSys Challenge and MediaEval).

See here for summary report!

GamifIR: Workshop on Gamification for Information Retrieval at ECIR 2014

gamification_workshop_2014In order to better understand the application of gamification in information access systems, the Crowdrec project organised a workshop on gamification at ECIR in Amsterdam (April 13th). ECIR is the main European conference on information retrieval.

The workshop included a keynote by Prof. Richard Bartle, who introduced the idea of player types, an essential aspect of successful gamification. Over 40 researchers attended the workshop. A detailed review about the workshop can be found in the Spring 2014 issue of The Informer, the Newsletter of the BCS Information Retrieval Specialist Group of the The Chartered Institute for IT.


Okapi Hackathon

Gravity participated with four people (engineers and researchers) at the Hackathon (March 2014). The main goal of the participation is to get familiar with Okapi, a distributed machine learning framework, and with test.fm an evaluation framework, both being considered to be integrated into the reference framework of CrowdRec.

Gravity colleagues implemented some algorithms within Okapi to test the framework, including algorithms that handle implicit feedback data, which is new feature in Okapi. In additional to the four-person Gravity delegation TUD and Moviri were also represented at the Hackathon.