Search results

1 – 4 of 4
Per page
102050
Citations:
Loading...
Access Restricted. View access options
Article
Publication date: 7 October 2014

M. Maina Olembo, Timo Kilian, Simon Stockhardt, Andreas Hülsing and Melanie Volkamer

The purpose of this study was to develop and test SCoP. Users find comparing long meaningless strings of alphanumeric characters difficult. While visual hashes – where users…

163

Abstract

Purpose

The purpose of this study was to develop and test SCoP. Users find comparing long meaningless strings of alphanumeric characters difficult. While visual hashes – where users compare images rather than strings – have been proposed as an alternative, people are unable to sufficiently distinguish more than 30 bits, which does not provide adequate security against collision attacks. Our goal is to improve the situation.

Design/methodology/approach

A visual hash scheme was developed using shapes, colours, patterns and position parameters. It was evaluated in a series of pilot user studies and improved iteratively, leading to SCoP, which encodes 60 distinguishable bits. We tested SCoP further in two follow-up studies, simulating verifying in remote electronic voting and https certificate validation.

Findings

Participants attained an average accuracy rate of 97 per cent with SCoP when comparing two visual hash images, one placed above the other. From the follow-up studies, SCoP was seen to be more promising for the https certificate validation use case, with direct image comparison, while a low average accuracy rate in simulating verifiability in remote electronic voting limits its applicability in an image-recall use case.

Research limitations/implications

Participants achieved high accuracy rates in unrealistic situations, where the images appeared on the screen at the same time and in the same size. Studies in more realistic situations are therefore necessary.

Originality/value

We identify a visual hash scheme encoding a higher number of distinguishable bits than previously reported in literature, and extend the testing to realistic scenarios.

Details

Information Management & Computer Security, vol. 22 no. 4
Type: Research Article
ISSN: 0968-5227

Keywords

Access Restricted. View access options
Article
Publication date: 12 August 2014

Andrea Furlan and Roberto Grandinetti

Literature on spin-offs still lacks a thorough understanding of the forces governing spin-off performance. The purpose of this paper is to fill this gap by taking a network…

1351

Abstract

Purpose

Literature on spin-offs still lacks a thorough understanding of the forces governing spin-off performance. The purpose of this paper is to fill this gap by taking a network perspective.

Design/methodology/approach

The paper combines the literature on spin-offs with the network approach to new ventures to proposing a model showing how networking in the pre-entry phases affects a spin-off's survival and early growth.

Findings

The intensity and variety of interactions between the future entrepreneur (FE) and other individual actors has a positive impact on spin-off performance in both the incubation and the emergence phases. The degree of overlap between the network of the incubation phase and the network of the emergence phase also reinforces the effects of the intensity and variety of these interactions on performance during the emergence phase. Finally, entrepreneurial innovativeness is an antecedent of spin-off performance in that it requires different degrees of overlap between the network of the incubation phase and the network of the emergence phase.

Research limitations/implications

Being a conceptual paper, the study needs the support of empirical research. For example, samples of spin-offs achieving a high and low performance could be compared in relation to their FE's networking activity.

Originality/value

The paper creates a bridge between the inherited knowledge approach to spin-offs and the network approach to new ventures to provide a framework for explaining spin-off performance.

Details

Journal of Small Business and Enterprise Development, vol. 21 no. 3
Type: Research Article
ISSN: 1462-6004

Keywords

Access Restricted. View access options
Article
Publication date: 11 July 2016

Andrea Furlan and Roberto Grandinetti

– The purpose of this paper is to integrate knowledge inheritance theory with the social capital perspective to explain the initial endowments of spinoffs.

554

Abstract

Purpose

The purpose of this paper is to integrate knowledge inheritance theory with the social capital perspective to explain the initial endowments of spinoffs.

Design/methodology/approach

The authors maintain that social capital plays a crucial part, both as a mechanism supporting the generation of intellectual capital prior to a spinoff’s foundation, and as an endowment that complements this capital once the spinoff is founded. Knowledge inheritance remains a fundamental mechanism for the formation of a spinoff’s intellectual capital. Its other endowment, social capital, derives from three types of relationship that future entrepreneurs develop within, through and outside their parent firm, all three of which are crucial to the formation of a spinoff’s intellectual capital.

Findings

The first result of the theoretical research is an integrative framework of a spinoff’s endowments. Moreover, the authors apply this framework to address two key research questions in the spinoff literature, i.e. whether spinoffs can differ from their parents in terms of intellectual capital; and why spinoffs tend to co-locate near their parents, in geographical clusters. The integrative approach helps to tackle these questions.

Originality/value

This conceptual paper offers a more comprehensive explanation of the emergence of spinoffs in terms of their initial endowments than the knowledge inheritance theory.

Details

Journal of Intellectual Capital, vol. 17 no. 3
Type: Research Article
ISSN: 1469-1930

Keywords

Access Restricted. View access options
Article
Publication date: 15 May 2017

Roberta Apa, Roberto Grandinetti and Silvia Rita Sedita

The purpose of this paper is to provide insights on the relational dimension of a networked business incubator (NBI), by investigating the intermediary role of incubator…

2000

Abstract

Purpose

The purpose of this paper is to provide insights on the relational dimension of a networked business incubator (NBI), by investigating the intermediary role of incubator management in fostering social and business ties linking tenants among each other, with the incubator management and external actors.

Design/methodology/approach

The paper offers a literature review on the NBIs and advances a comprehensive analytical framework of the networked incubation model. This framework is empirically illustrated through a case study research on a leading Italian private NBI, namely, H-Farm. The collection of primary data was conducted by means of face-to-face in-depth interviews and a survey. Data were processed through social network analysis (SNA) tools.

Findings

The results highlight the co-presence and interaction of social and business ties, which build up a vital environment nurturing an entrepreneurial ecosystem. Community-based relationships and the intermediation of incubator management are crucial for supporting tenants in product and business development activities.

Research limitations/implications

These results pave the way to further research, oriented to the conceptualization of a NBI as a (small) cluster. Moreover, the application of the SNA tools adopted invites further research on networked incubators, applying the same methodology in new directions.

Originality/value

This paper adds to previous literature on NBIs by providing evidence of the intermediary role of incubator management in promoting and facilitating social and business relationships occurring among tenants, between tenants and the incubator management, as well as with external advisors, clients and suppliers.

Details

Journal of Small Business and Enterprise Development, vol. 24 no. 2
Type: Research Article
ISSN: 1462-6004

Keywords

1 – 4 of 4
Per page
102050