INES – National Institute of Science and Technology for Software Engineering

INES at RecSys 2015 – Austria

Professor Leandro Balby Marinho will attend the 9th ACM Recommender Systems Conference to present the papers: “Context-Aware Event Recommendation in Event-Based Social Networks” and “Are Real-World Place Recommendarion Algorithms Useful in Virtual Worlds?“.

Context-Aware Event Recommendation in Event-Based Social Networks

Abstract

The Web has grown into one of the most important channels to communicate social events nowadays. However, the sheer volume of events available in event-based social networks (EBSNs) often undermines the users’ ability to choose the events that best fit their interests. Recommender systems appear as a natural solution for this problem, but differently from classic recommendation scenarios (e.g. movies, books), the event recommendation problem is intrinsically cold-start. Indeed, events published in EBSNs are typically short-lived and, by definition, are always in the future, having little or no trace of historical attendance. To overcome this limitation, we propose to exploit several contextual signals available from EBSNs. In particular, besides contentbased signals based on the events’ description and collaborative signals derived from users’ RSVPs, we exploit social signals based on group memberships, location signals based on the users’ geographical preferences, and temporal signals derived from the users’ time preferences. Moreover, we combine the proposed signals for learning to rank events for personalized recommendation. Thorough experiments using a large crawl of Meetup.com demonstrate the effectiveness of our proposed contextual learning approach in contrast to state-of-the-art event recommenders from the literature.

Are Real-World Place Recommendarion Algorithms Useful in Virtual Worlds?

Abstract

Bug tracker systems have been used to facilitate maintenance and evolution of software. However, duplicate entries of bug reports in such systems impact on the development productivity. It happens mainly because developers must carefully analyze incoming bug reports to check their validity, which some can take more than 20 minutes to be analyzed. In this sense, this work presents a tool for bug reports search and analysis, in order to improve such tasks.

Brazilian Programming Contest

UFCG teams will attend the Brazilian programming contest in Olinda.

INES at ECSA 2015

The PhD student Simone Amorim will attend ECSA 2015 and present the paper:

“Tailoring the ATAM for Software Ecosystems”

Authors: Simone Amorim, John McGregor, Eduardo Almeida, Christina Chavez

INES at SEFM 2015

INES Member to participate and demo on IJCAI 2015

The International Joint Conference on Artificial Intelligence (IJCAI) is probably the most prestigious Artificial Intelligence Conference nowadays (qualis A1 by CAPES).

In this year edition, there will be a special track, called AI and the Arts, where Giordano Cabral, researcher from INES, will present his work and make demonstrations of the Rechord system, a collaboration with the SONY Computer Science Lab Paris.

The conference will be held in Buenos Aires, Argentina, between the 25st july and 31st july 2015.

More information about the event and this particular track in: http://ijcai-15.org/

UFCG members visit Ingenico-SP

The Ingenico company has a cooperation with UFCG to investigate application of analytics to data related to failures in Ingenico machines (terminals). The extraction of failure and maintenance information occurs periodically and need to be analysed. The visit allow the convergence of interests form both company and UFCG to improve data exploration in the scenario of Big Data, as a big number of extractions are expected by month in machines of all Latin America.

INES at FMi 2015

INES at ESEM 2015

INES will be present at the 9th International Symposium on Empirical Software Engineering and Measurement (ESEM 2015), to be held in Bejing, China, on 22/10/2015 and 23/10/2015. Research members from the “Ferramentas para Desenvolvimento e Evolução de Linhas de Produto de Software” project had the following paper accepted on this conference:

Title: Assessing Semistructured Merge in Version Control Systems: A Replicated Experiment

Authors: Guilherme Cavalcanti(UFPE), Paola Accioly(UFPE) and Paulo Borba(UFPE)

Guilherme Cavalcanti will attend the ESEM 2015 as conference speaker.

UFCG at BRASNAN 2015

The graduate student Igleson Freire de Figueredo o will attend the IV Brazilian Workshop on Social Network Analysis and Mining, where the paper  “Investigando a Influência de Tweets em Programas de Votação Popular no Brasil” will be presented. This activity is part of the project “Uma Infra-estrutura Integrada para Desenvolvimento de Aplicações Envolvendo Analytics e Big-Data”.

Coordinator of HealthDrones project visits research group of Numerical Optimization and Modeling.

Silvana Bocanegra, coordinator of HeathDrones project, will visit the Group of Numerical Optimization and Modeling – GNOM  (https://gnom.upc.edu/) at UPC. Universitat Politècnica de Catalunya from 27 July 2015 to 08 August 2015.  The research group maintains projects with the GNOM-UPC since 2011. The goal of this technical visit is to evaluate the use of large scale optimization algorithms and modeling strategies on routing algorithms and on-board computation for the software plataform of drones.