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Graph Pattern Matching (GPM) plays a significant role in many real applications, where given a graph pattern Q and a data graph G, computing the set M(Q, G) of matching subgraphs of Q in G. However, many applications like the experts recommendation in social networks, often need to find Top-K matches of a designated node v0, rather than the entire set M(Q, G). Moreover, the existing GPM method for...
Dance performances use body gestures as a language to express emotion, and lighting and background images on the stage to create the scene and atmosphere. In conventional dance performances, the background images are usually selected or designed by professional stage designers according to the theme and the style of the dance. In new media dance performances, the stage effects are usually generated...
This paper systematizes learning and teaching experience with about 700 students in different subject degrees from the University of Santiago de Compostela. The experience works with e-portfolios as part of a social network. In developing the e-portfolio, reflection, communication and collaboration are included by a frame-constructive learning cognitive perspective develops on social bases. This work...
This paper discusses research and development (R&D) capabilities under a software development setting following the scrum framework. Although the scrum framework provides routines to address technical needs, it lacks routines for proactive behavioral management. A conceptual model was developed to include behavioral routines in the scrum framework. The model links predictability of new or improved...
GitHub is one of the most commonly used web-based code repository hosting service. Majority of projects hosted on GitHub are really small but, on the other hand, developers spend most of their time working in medium to large repositories. Developers can freely join and leave projects following their current needs and interests. Based on real data collected from GitHub we have tried to predict which...
This work proposes to investigate the question of whether attending conference will breed new scientific collaboration based on the focal closure theory. Through the analysis of conference closure on individual and community level, we show that attending conference can promote new scientific collaborations, and conferences with more attendees and higher field ratings bring more new scientific collaborations.
Software Crowdsourcing (SW CS) is an emerging area in Software Engineering (SE). It has a dynamic nature in which problems are opened up to crowds of people through an open call to solve problems with the incentive of prizes for the best solutions. Although SW CS has been increasingly adopted in the software industry, many open issues are still to be elucidated. For instance, collaboration aspects...
Recently, crowdsourcing has been increasingly used in software industry to lower costs and increase innovations, by utilizing experiences, labor, or creativity of developers worldwide. In software crowdsourcing platforms, developers expect to find suitable tasks for their interests and abilities. So it is significant for software crowdsourcing to build a recommender system to match developers with...
The widespread use of computing and communications technologies has enabled the popularity of social networks oriented to learn. In this work, we study the nature and strength of associations between students using an online social network embedded in a learning management system. With datasets from two offerings of the same course, we mined the sequences of questions and answers posted by the students...
This work analyzes the co-authorship of science papers published by university teachers, and then constructs are searcher co-authorship network and characterizes the network by some varying quantities: the clustering coefficient, the average degree, diameter, average distance and components. Consequently, this paper visualizes the researcher co-authorship network which can lead to a better understanding...
There is a growing interest in socio-technical networks that encompass people, process and technology. They capture connections among technical artifacts and human resources. Existing studies have shown that social networks among resources that collaborate to work on a business process instance have an impact on the performance of the instance. Hence, the social network among the resources should...
The purpose of this paper is to develop a systematic understanding of how organizational knowledge is brokered and becomes embedded in the social network structures of boundary-spanning change projects. Drawing on a two-year study of major IS change projects in a global consultancy organization, I explore the various mechanisms by which different forms of knowledge are defined, legitimized, and communicated...
In Brazil, CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) regulates graduate programs at universities. This agency belongs to the Ministry of Education (MEC) and it is empowered to recommend or discredit graduate courses. Graduate programs are required to coordinate their strategies and actions to comply with the requisites of the evaluation system. This study investigated the...
Virtual teams of programmers are a popular form of collaboration both in Open Source, and commercial software projects. In OSS (Open Source Software) projects, programmers make their own decision which project to join, and, therefore, the process of task allocation among the project members is emergent. In this paper, we attempt to simulate such a process based on available data from Git Hub. The...
The purpose of this research article is to identify the key requirements of social collaboration solutions which could be used within the Smart commerce concept. The research aims to find what factors and features of social collaboration software are important to different categories of customers. The research also determines online promotion channels that increase the diffusion of social collaboration...
Software development in free and open source (FOSS) projects is a collective human activity. Software developers in these projects collaborate via FOSS informalisms, i.e. mailing list, bug repository and code repository. Analysing the human collaborative work of these software developers over a time period, e.g. five years, sheds light on the underlying structure and dynamics of how the software is...
The web 2.0 or “online interactive platform”, becomes today one of the most powerful medium which enables the interaction of web's visitors, knowledge sharing, co-creation of information, empowerment of consumers and/or companies, brand commitment and loyalty, leading to a successful Internet marketing strategy. Therefore, we will focus in this study on the influence of the use of web 2.0 and online...
This study relies on Media Synchronicity Theory and Social Network Analysis to analyze how the structure of collaboration networks change when collaborating teams become temporally dispersed. The empirical test of hypotheses using ordinary least squares with archival data from 230 Open Source Software projects shows that the collaboration structure networks of more temporally dispersed teams are sparser...
Software development is a collaborative activity in which social relationships among those involved throughout the life cycle are paramount for achieving the project goals. For instance, communication with, awareness of, and trust in others are relevant and necessary to facilitate collaboration. The identification of social relationships and their patterns can help us to better understand the dynamics...
This paper describes the development of a collaborative social platform to support innovation process management. The Drupal based platform accommodates different types of innovation processes (also called waves or idea contests), enhances collaboration and eases management. The main contribution lies on the gathering of context parameters which helps enterprises on the detection of critical success...
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