This paper describes the theoretical framework and implementation of a database management system for storing and manipulating diverse probability distributions of discrete random variables with finite domains, and associated information. A formal Semistructured Probabilistic Object (SPO) data model and a Semistruc­ tured Probabilistic Query Algebra (SP-algebra) are proposed. The SP-algebra sup...

This paper describes the theoretical framework and implementation of a database management system for storing and manipulating diverse probability distributions of discrete random variables with finite domains, and associated information. A formal Semistructured Probabilistic Object (SPO) data model and a Semistruc­ tured Probabilistic Query Algebra (SP-algebra) are proposed. The SP-algebra sup...

Interest in XML databases has been expanding rapidly over the last few years. In this chapter, we will study the problem of incorporating probabilistic information into XML databases. First we will consider the sources of probabilistic XML data. We will then describe the initial attempts in using XML tags to represent simple uncertainty in text and XML data. After that, we will describe Zhao et...

Abstract O ur basic aim in this paper concerns the question that if overusing the Information Technology by service and manufacturing firms can increase the total productivity resulting from this kind of technology regarding the Iran's economic structure and conditions. For this purpose, we primarily evaluate the productivity resulting from the rate of firms' use of IT for...

This study examines how tensions arising from business model innovation (BMI) are managed within a social purpose organisation (SPO) network. We utilise case to illustrate network with dual (social and economic) mission focus, present themselves at three key stages of BMI (initiation, exploration, exploitation). Moreover, we use illustrative examples show through dynamic capabilities (sensing, ...

abstract o ur basic aim in this paper concerns the question that if overusing the information technology by service and manufacturing firms can increase the total productivity resulting from this kind of technology regarding the iran's economic structure and conditions. for this purpose, we primarily evaluate the productivity resulting from the rate of firms' use of it for the differe...

analyzing efficiency in each economic sector to adopt policies for optimal use of production factors and avoid wasting resources is important. in this study, in order to have a more comprehensive evaluation of the performance of each unit, efficiency of broiler firms was measured using bounded data envelopment analysis which determines position of each unit relative to efficient and inefficient...

the present study has been done with the aim of exploring the effects of organizational dynamic capabilities on competitive advantage in consulting firms. to do so, a grounded theory method was used which was suitable regarding the explorative nature of the research. seventeen consulting firms were the research sample. the ceos and members of board of directors of these firms were interviewed. ...