University of Piraeus

About: University of Piraeus is a education organization based out in Piraeus, Attiki, Greece. It is known for research contribution in the topics: Context (language use) & Computer science. The organization has 1731 authors who have published 6209 publications receiving 106699 citations.

Collective intelligence with web-based information aggregation markets: The role of market facilitation in idea management

Abstract: Communities within corporations can significantly contribute to innovation and the idea management process. The collection of ideas and aggregation of evaluation information from a community is a demanding task that requires the use of special methods. In this paper we explore the use of information aggregation markets (IAMs) in the fuzzy front-end of innovation. Furthermore, we identify and define a type of facilitation which we name 'market facilitation' and we assess its role in new idea generation at different levels of restrictiveness. The empirical results of a laboratory experiment indicate that IAMs enable the acquisition of more ideas than traditional brainstorming and of similar quality. Market facilitation forms entailing different levels of restrictiveness are found to affect the number and the quality of ideas acquired. As the level of market facilitation restrictiveness decreases, the number of acquired ideas increases and their quality deteriorates. To practitioners, our study provides empirical evidence on the advantages of IAMs over traditional electronic brainstorming as an alternative method for idea generation and evaluation.

Risk-Based Criticality Analysis

Abstract: Critical infrastructure protection requires the evaluation of the criticality of infrastructures and the prioritization of critical assets. However, criticality analysis is not yet standardized. This paper examines the relation between risk and criticality. It analyzes the similarities and differences in terms of scope, aims, impact, threats and vulnerabilities; and proposes a generic risk-based criticality analysis methodology. The paper also presents a detailed list of impact criteria for assessing the criticality level of infrastructures. Emphasis is placed on impact types that are society-centric and/or sector-centric, unlike traditional risk analysis methodologies that mainly consider the organization-centric impact.

Deterministic software-based self-testing of embedded processor cores

Abstract: A deterministic software-based self-testing methodology for processor cores is introduced that efficiently tests the processor datapath modules without any modification of the processor structure. It provides a guaranteed high fault coverage without repetitive fault simulation experiments which is necessary in pseudorandom software-based processor self-testing approaches. Test generation and output analysis are performed by utilizing the processor functional modules like accumulators (arithmetic part of ALU) and shifters (if they exist) through processor instructions. No extra hardware is required and there is no performance degradation.