40,232 research outputs found

    `Q-Feed' - An Effective Solution for the Free-riding Problem in Unstructured P2P Networks

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    This paper presents a solution for reducing the ill effects of free-riders in decentralised unstructured P2P networks. An autonomous replication scheme is proposed to improve the availability and enhance system performance. Q-learning is widely employed in different situations to improve the accuracy in decision making by each peer. Based on the performance of neighbours of a peer, every neighbour is awarded different levels of ranks. At the same time a low-performing node is allowed to improve its rank in different ways. Simulation results show that Q-learning based free riding control mechanism effectively limits the services received by free-riders and also encourages the low-performing neighbours to improve their position. The popular files are autonomously replicated to nodes possessing required parameters. Due to this improvement of quantity of popular files, free riders are given opportunity to lift their position for active participation in the network for sharing files. Q-feed effectively manages queries from free riders and reduces network traffic significantlyComment: 14 pages, 10 figure

    Open semantic service networks

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    Online service marketplaces will soon be part of the economy to scale the provision of specialized multi-party services through automation and standardization. Current research, such as the *-USDL service description language family, is already deïŹning the basic building blocks to model the next generation of business services. Nonetheless, the developments being made do not target to interconnect services via service relationships. Without the concept of relationship, marketplaces will be seen as mere functional silos containing service descriptions. Yet, in real economies, all services are related and connected. Therefore, to address this gap we introduce the concept of open semantic service network (OSSN), concerned with the establishment of rich relationships between services. These networks will provide valuable knowledge on the global service economy, which can be exploited for many socio-economic and scientiïŹc purposes such as service network analysis, management, and control

    Succeeding Through Collaborative Conflict: The Paradoxical Lessons of Shared Leadership

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    Facing serious challenges that may dictate the complete overhaul of business mindset and industry must be directed by sound leadership. But is it possible to lead alone or is collaboration necessary to confront these challenges? These authors tackle the well-known idiom “two heads are better than one” and extract from its meaning the inherent dichotomy in shared leadership, mediating differences of direction, and preserving the integrity of individual perspective in this new age

    Notions of Knowledge Management

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    {Excerpt} Knowledge management is getting the right knowledge to the right people at the right time, and helping them (with incentives) to apply it in ways that strive to improve organizational performance. Data are facts, and information is interpreted data. Knowledge is created and organized by flows of information, shaped by their holder. It is tacit or explicit. Tacit knowledge is nonverbalized, intuitive, and unarticulated knowledge that people carry in their heads. It is hard to formalize and communicate because it is rooted in skills, experiences, insight, intuition, and judgment, but it can be shared in discussion, storytelling, and personal interactions. It has a technical dimension, which encompasses skills and capabilities referred to as know-how. It has a cognitive dimension, which consists of beliefs, ideals,values, schemata, or mental models. Explicit knowledge is codified knowledge that can be expressed in writing, drawings, or computer programs, for example, and transmitted in various forms. Tacit knowledge and explicit knowledge are mutually complementary forms of meaning

    Managing value creation in knowledge intensive business services organisations

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    Value creation is essential in the Knowledge Intensive Business Service (KIBS) industry, due to its problem-solving nature. KIBS organisations need to understand their internal value creation processes as well as the complexity in the environment in order to survive and thrive. This paper investigates how value creation is managed in KIBS organisation through a case study. It then goes on to adopt Beer's Viable System Model (VSM) to propose an organisational design, namely the Value Integration Office (VIO). The VIO focuses on the 5 functions/systems defined by VSM in the meta-system and operation of an organisation in order to manage value creation. This design is implemented in a case study organisation with the aim to adopt a holistic view on value creation within the organisation as well as facilitate future planning function. The implementation and impact of the proposed organisational design are reported in this paper

    Using big data for customer centric marketing

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    This chapter deliberates on “big data” and provides a short overview of business intelligence and emerging analytics. It underlines the importance of data for customer-centricity in marketing. This contribution contends that businesses ought to engage in marketing automation tools and apply them to create relevant, targeted customer experiences. Today’s business increasingly rely on digital media and mobile technologies as on-demand, real-time marketing has become more personalised than ever. Therefore, companies and brands are striving to nurture fruitful and long lasting relationships with customers. In a nutshell, this chapter explains why companies should recognise the value of data analysis and mobile applications as tools that drive consumer insights and engagement. It suggests that a strategic approach to big data could drive consumer preferences and may also help to improve the organisational performance.peer-reviewe

    Delivering ‘Effortless Experience’ Across Borders: Managing Internal Consistency in Professional Service Firms

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    This article explores how professional service firms manage across borders. When clients require consistent services delivered across multiple locations, especially across borders, then firms need to develop an organization that is sufficiently flexible to be able to support such consistent service delivery. Our discussion is illustrated by the globalization process of law firms. We argue that the globalization of large corporate law firms primarily takes place in terms of investments in the development of protocols, processes and practices that enhance internal consistency such that clients receive an ‘effortless experience’ of the service across multiple locations worldwide. Over the longer term the ability to deliver such effortless experience is dependent upon meaningful integration within and across the firm. Firms that achieve this are building a source of sustainable competitive advantage

    Community next steps for making globally unique identifiers work for biocollections data

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    Biodiversity data is being digitized and made available online at a rapidly increasing rate but current practices typically do not preserve linkages between these data, which impedes interoperation, provenance tracking, and assembly of larger datasets. For data associated with biocollections, the biodiversity community has long recognized that an essential part of establishing and preserving linkages is to apply globally unique identifiers at the point when data are generated in the field and to persist these identifiers downstream, but this is seldom implemented in practice. There has neither been coalescence towards one single identifier solution (as in some other domains), nor even a set of recommended best practices and standards to support multiple identifier schemes sharing consistent responses. In order to further progress towards a broader community consensus, a group of biocollections and informatics experts assembled in Stockholm in October 2014 to discuss community next steps to overcome current roadblocks. The workshop participants divided into four groups focusing on: identifier practice in current field biocollections; identifier application for legacy biocollections; identifiers as applied to biodiversity data records as they are published and made available in semantically marked-up publications; and cross-cutting identifier solutions that bridge across these domains. The main outcome was consensus on key issues, including recognition of differences between legacy and new biocollections processes, the need for identifier metadata profiles that can report information on identifier persistence missions, and the unambiguous indication of the type of object associated with the identifier. Current identifier characteristics are also summarized, and an overview of available schemes and practices is provided
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