In this paper we introduce DiTTO, an online service that allows one to convert an E/R diagram created through the yEd diagram editor into a proper OWL ontology according to three different conversion strategies.

Researchers have called for new theoretical frameworks and empirical analyses to understand variations in organizational strategies and management practices in the Internet industry, where existing paradigms may have limited applicability. Studies to date have neither articulated the repertoire of key firm actions in this context nor developed theory to relate firm actions to performance. This ...

This paper presents Folheador, an online service for browsing through Portuguese semantic relations, acquired from different sources. Besides facilitating the exploration of Portuguese lexical knowledge bases, Folheador is connected to services that access Portuguese corpora, which provide authentic examples of the semantic relations in context.

Many online service businesses are beginning to charge fees for services that they used to provide for free. It is unclear whether consumers are ready to embrace this practice. This study explores the critical issue of consumer attitudes toward fee-based online services. The results of the study indicate that consumers’ willingness to pay for online services is likely to be influenced by their ...

With the coming of mobile internet era, Giants in the different industry begin to compete face by face. This teaching case presents the event of charging for WeChat in China context to delineate the new challenges that Online Service Provider and Mobile Network Operator will face. The case describes the origin of the event, development of WeChat from inception to today, the impact of WeChat on ...

We present a framework for studying circuit complexity that is inspired by techniques that are used for analyzing the complexity of CSPs. We prove that the circuit complexity of a Boolean function f is characterized by the partial polymorphisms of f ’s truth table. Moreover, the non-deterministic circuit complexity of f is characterized by the polymorphisms of f ’s truth table.

Profile Study of Low-Income Population Seeking the Services of the Clinic of the Latin American Center of Parapsychology Maria Helena Brandalise1,2* and Gilberto Safra3 1Department of Psychology, University of São Paulo/USP, Av. Prof. Mello de Moraes, 1721 Cidade Universitária, São Paulo, SP, Brazil 2Post Graduate Department of Clinical Psychology, Pontifícia Universidade Católica de São Paulo,...

We investigate the incentive issues that surround the adoption and sharing of electronic health records (EHR) and the potential role of a personal health record (PHR) platform in facilitating data sharing. Through our analysis, we find evidence that health care providers may not have an incentive to share patients’ records electronically even though EHR systems will increase consumer surplus, e...