Entrepreneurial Behaviour and Organisational Propensity to Innovate in a Public Sector Context

The importance of innovation, in both private and public entrepreneurial fields, is the basis of all companies’ strategic choices. This study examines entrepreneurship and innovation, as well as their dynamic interface in value creation, in the public sector. It explores entrepreneurial determinants for public sector innovation, as collected from managers and employees involved in the water supply and sewage industries in Ukraine. The data, related to a sample of firms, were obtained from a twofold self-administered survey. Adopting an ordered logistic regression model to analyse the data obtained from a survey, it is discovered that the entrepreneurial determinants of self-awareness, knowledge-enabling and entrepreneurial orientation positively correlate with fostering innovation process. The findings reveal that entrepreneurial leadership and intrapreneurial self-efficacy are mediating determinants. Finally, the results demonstrate that intrapreneurial self-efficacy has more potential than entrepreneurial leadership to stimulate innovation at the individual level, which has both theoretical and practical implications

Optimisations of Fully Homomorphic Encryption

Fully homomorphic encryption (FHE) is a class of encryption algorithms that support any computation on encrypted messages without revealing anything about these messages in unencrypted form except for their maximal size. Using FHE, a party that owns private data can securely outsource computations on this data to another party. Due to this functionality, FHE finds many applications both in practice (e.g. cloud computing) and in the design of new cryptographic algorithms. Since the seminal work of Gentry in 2009, FHE has become an active research area that revolves around the question how to make FHE efficient. In the recent decade, various schemes and optimisations were proposed that gradually decreased the computational overhead of homomorphic function evaluation. Nevertheless, these schemes still remains impractical for general industrial applications. In this thesis, we propose and analyse several optimisations for FHE schemes. First, we demonstrate that the security of the most efficient FHE schemes can be compromised by switching from the RLWE problem to a slightly simpler computational problem. Second, we design several algorithms that efficiently encode real- and complex- valued data for FHE evaluation, thus reducing the computational overhead of homomorphic circuits. Third, we decrease the memory overhead of FHE by generalising the packing technique of Smart and Vercauteren. Using our algorithm, more plaintext messages can be packed into a single ciphertext in comparison to the previous methods.status: publishe

Approach to Organizational Structure Modelling in Construction Companies

Effective management system is one of the key factors of business success nowadays. Construction companies usually have a portfolio of independent projects running at the same time. Thus it is reasonable to take into account project orientation of such kind of business while designing the construction companies’ management system, which main components are business process system and organizational structure. The paper describes the management structure designing approach, based on the project-oriented nature of the construction projects, and propose a model of the organizational structure for the construction company. Application of the proposed approach will enable to assign responsibilities within the organizational structure in construction projects effectively and thus to shorten the time for projects allocation and to provide its smoother running. The practical case of using the approach also provided in the paper

Approach to Organizational Structure Modelling in Construction Companies

Effective management system is one of the key factors of business success nowadays. Construction companies usually have a portfolio of independent projects running at the same time. Thus it is reasonable to take into account project orientation of such kind of business while designing the construction companies’ management system, which main components are business process system and organizational structure. The paper describes the management structure designing approach, based on the project-oriented nature of the construction projects, and propose a model of the organizational structure for the construction company. Application of the proposed approach will enable to assign responsibilities within the organizational structure in construction projects effectively and thus to shorten the time for projects allocation and to provide its smoother running. The practical case of using the approach also provided in the paper