Palco Academic Workshop

We had a nice gathering together at DCC. People working with the palco project at LIAAD, CRACS, INESCPorto, UTM, Faculty of Science (DCC), Faculty of Economics and also Masaryk University (Brno). João Carvalho from the PalcoPrincipal company was also there. Presentations by students (except Lubos, who was presenting work of his students). We had recommender systems, incremental approaches, dealing with background information, ontologies, audio processing, tags processing, social networks, clustering, client-side event handling.

Here are some of the presentations:

Luís Lemos

Palco workshop 2010 04-13

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Beatriz Mora

Palco3.0

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Marcos Domingues

Background knowledge for recommenders

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João Marques da Silva

Incremental Item-based Collaborative Filtering

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Lubos Popelinsky

Lubos palcomaio2010

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Hugo Dias

Adaptabilidade Web 2

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Bárbara Amorim

Construção de ontologias para recomendação em sites web workshop - ingles

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Experiments on the Web: How to

This is a great 2007 guide by Ron Kohavi et al. on how to perform controlled experiments on the Web and trust the data instead of the wise man: "Practical Guide to Controlled Experiments on the Web: Listen to Your Customers not to the HiPPO". Protocol, statistics, measures, pitfalls, anecdotes. It has it all.

Incremental Collaborative Filtering

New paper "Item-based and user-based incremental collaborative filtering for Web recommendations" to be published in EPIA 09 (Springer). This is an extension of another paper at Web Intelligence 08 in Sydney (very nice place). The idea is to employ an item-based approach and update the relevant entries of the similarity matrix as new sessions pop-up. Clearly better than he user based approach.