Blockchain Solutions for Multi-Agent Robotic Systems: Related Work and Open Questions

The possibilities of decentralization and immutability make blockchain probably one of the most breakthrough and promising technological innovations in recent years. This paper presents an overview, analysis, and classification of possible blockchain solutions for practical tasks facing multi-agent robotic systems. The paper discusses blockchain-based applications that demonstrate how distributed ledger can be used to extend the existing number of research platforms and libraries for multi-agent robotic systems.Comment: 5 pages, FRUCT-2019 conference pape

Towards a specific architecture for international information systems: An exploratory study

Despite their acknowledged importance, international information technology applications - defined as supporting a business activity across a number of diverse environments - are still largely unstudied and under-explored. Scholarly research has been relatively sparse, but there is anecdotal evidence of the serious difficulties facing the developer of international systems. In this exploratory paper it is investigated whether there is a specific architecture, generically common to international information systems which could provide a framework for the development of international systems. The linkage between the global business strategy of international firms and the organization and structure of their information systems is discussed. Building on the body of research into the structure of global information systems and distilling from it some fundamental commonalities, an architecture consisting of a two-dimensional topology and five systems elements is proposed as a basic construct for the design of systems which operate across diverse environments. The potential benefits of the architecture and the resulting implications for the design of international information systems are set out and the need for future research to validate and develop the architecture model further is emphasized

A Taxonomy of Data Grids for Distributed Data Sharing, Management and Processing

Data Grids have been adopted as the platform for scientific communities that need to share, access, transport, process and manage large data collections distributed worldwide. They combine high-end computing technologies with high-performance networking and wide-area storage management techniques. In this paper, we discuss the key concepts behind Data Grids and compare them with other data sharing and distribution paradigms such as content delivery networks, peer-to-peer networks and distributed databases. We then provide comprehensive taxonomies that cover various aspects of architecture, data transportation, data replication and resource allocation and scheduling. Finally, we map the proposed taxonomy to various Data Grid systems not only to validate the taxonomy but also to identify areas for future exploration. Through this taxonomy, we aim to categorise existing systems to better understand their goals and their methodology. This would help evaluate their applicability for solving similar problems. This taxonomy also provides a "gap analysis" of this area through which researchers can potentially identify new issues for investigation. Finally, we hope that the proposed taxonomy and mapping also helps to provide an easy way for new practitioners to understand this complex area of research.Comment: 46 pages, 16 figures, Technical Repor

A Taxonomy of Workflow Management Systems for Grid Computing

With the advent of Grid and application technologies, scientists and engineers are building more and more complex applications to manage and process large data sets, and execute scientific experiments on distributed resources. Such application scenarios require means for composing and executing complex workflows. Therefore, many efforts have been made towards the development of workflow management systems for Grid computing. In this paper, we propose a taxonomy that characterizes and classifies various approaches for building and executing workflows on Grids. We also survey several representative Grid workflow systems developed by various projects world-wide to demonstrate the comprehensiveness of the taxonomy. The taxonomy not only highlights the design and engineering similarities and differences of state-of-the-art in Grid workflow systems, but also identifies the areas that need further research.Comment: 29 pages, 15 figure

Does Local School Control Raise Student Outcomes?: Theory and Evidence on the Roles of School Autonomy and Community Participation

School autonomy and parental participation have been frequently proposed as ways of making schools more productive. Less clear is how governments can foster decentralized decision-making by local schools. This paper shows that across eight Latin-American countries, most of the variation in local control over school decisions exists within and not between countries. That implies that the exercise of local authority to manage schools is largely a local choice only modestly influenced by constitutional stipulations regarding jurisdiction over school personnel, curriculum and facilities. As a consequence, estimated impacts of local school autonomy, parental participation or school supplies on student performance must account for the endogeneity of local efforts to manage schools. Empirical tests confirm that local managerial effort by the principal and the parents and the adequacy of school supplies are strongly influenced by parental human capital and the size and remoteness of the community, and that these effects are only partially moderated by central policies regarding the locus of control over the schools. Correcting for endogeneity, parental participation and adequacy school supplies have strong positive effects on 4th grade test performance, but school autonomy has no discernable impact on school outcomes.school; autonomy; performance; parental participation; management; local; central