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This paper introudces the imporant role of networks of interfirm ties in examining fundamental issues in strategy research. Prior research has primarily viewed firms as autojnomous entities striving for competitive advantage from ...
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This paper introudces the imporant role of networks of interfirm ties in examining fundamental issues in strategy research. Prior research has primarily viewed firms as autojnomous entities striving for competitive advantage from either external industry sources or from internal resources and capabilties. However, the networks of relationships in which firms are embedded profoundly infleunce their conduct and performance. We identify ive key areas of straegy research in which there is potential for incorporating strategic networks: (1) industry structure, (2) positioning within an industry, (3) inimitable firm resources and capabilities, (4) contracting and coordination costs, and (5) dynamic network constraints and benefits. For each of these issues, the paper outlines some important insights that results from consdiering the role of strategic networks.
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Locating users in mobile environment is an essential problem in PCS that becomes more challenging as the network size increases and the user population grows, In third generation mobile systems, the signaling traffic and processin...
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Locating users in mobile environment is an essential problem in PCS that becomes more challenging as the network size increases and the user population grows, In third generation mobile systems, the signaling traffic and processing overhead of location updates is expected to grow tremendously leading to poor performance. Therefore location management schemes should aim at reducing the cost of updates. Yet, the lookup delay should be kept minimum. This paper aims at classifying the various approaches used for location management of mobile users by grouping them into two main categories. The first category comprises techniques that focused on reducing the cost of looking up a user and adjusted the update process accordingly. These are classified into replication, caching and selective paging techniques. The second category consists of techniques that focused on reducing the cost of updates and maneuvered the update policy to reduce the lookup cost by informing the system with the maximum possible information about user's mobility. This could be achieved by the use of statistic collection, estimation or prediction processes. We classify those schemes into three main classes: schemes based on forwarding pointers, learning-based schemes and prediction-based schemes. By investigating the technical si,significance of each class a new direction for future research is proposed which favors the second category of location techniques and emphasis the importance of adopting suitable learning and prediction techniques to optimize the overall location cost. (C) 2000 Published by Elsevier Science Inc. All rights reserved. [References: 49]
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The specific objectives of this study include characterising the born globals founders' profile, identifying the factors that lead the companies to globalise, identifying the reasons of choosing to enter certain countries, verifyi...
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The specific objectives of this study include characterising the born globals founders' profile, identifying the factors that lead the companies to globalise, identifying the reasons of choosing to enter certain countries, verifying how the internationalisation strategic behaviour of born globals had been modified through the years, as well as verifying the role that partnerships represented to born globals. Three organisations from Brazil and Italy were analysed. Interviews were carried out with the organisations' stakeholders through a semi-structured questionnaire previously elaborated. All the interviews were recorded and then transcribed and submitted to content analysis. The study helped clarify some topics related to the role played by partnerships and the founders' profile, more specifically, the temporal aspect of partnerships and the necessary entrepreneur profile of founders. Finally, the study has also found that some concepts in the literature of born globals are not in agreement with the results from the sample analysed.
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Information Centric Network (ICN) moves the internet from being host-based to become content-based. ICN provides in-network caching, named-based routing and multicast support. ICN cache the content into nodes in the network based ...
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Information Centric Network (ICN) moves the internet from being host-based to become content-based. ICN provides in-network caching, named-based routing and multicast support. ICN cache the content into nodes in the network based on caching and replacement strategies. In this paper, we propose a caching and replacement strategies for content in Content-Centric Network (CCN). The caching strategy will choose the node that will be cached on based on the network topology. The proposed replacement strategy will take in its consideration the number of resources that the content has been consumed and if the content has been requested recently or not. To evaluate our proposed work, we use a ccnSim simulator, and the simulation results show that our proposed caching strategy provides more significant result than the Leave Copy Everywhere (LCE) strategy and the replacement strategy provide more significant result than the Least Recently Used (LRU) replacement strategy.
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Our study of 15 platform industries found that, in order to gain or sustain competitive advantage, platform leaders engage in platform envelopment. Leading platform envelopers are often (late) followers who employ staircase strate...
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Our study of 15 platform industries found that, in order to gain or sustain competitive advantage, platform leaders engage in platform envelopment. Leading platform envelopers are often (late) followers who employ staircase strategies to extend and integrate their product architecture(s). At the same time, much remains to be understood about platform industries. For example: 1. Why do followers win? 2. How fast do platforms evolve? 3. On what factors does that speed depend? 4. Is the evolution of (winning) platforms predictable? Future research may illuminate such questions.
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We investigated the efficiency of attack strategies to network nodes when targeting several complex model and real-world networks. We tested 5 attack strategies, 3 of which were introduced in this work for the first time, to attac...
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We investigated the efficiency of attack strategies to network nodes when targeting several complex model and real-world networks. We tested 5 attack strategies, 3 of which were introduced in this work for the first time, to attack 3 model networks (Erdos and Renyi, Barabasi and Albert preferential attachment network, and scale-free network configuration models) and 3 real networks (Gnutella peer-to-peer network, email network of the University of Rovira i Virgili, and immunoglobulin interaction network). Nodes were removed sequentially according to the importance criterion defined by the attack strategy, and we used the size of the largest connected component (LCC) as a measure of network damage. We found that the efficiency of attack strategies (fraction of nodes to be deleted for a given reduction of LCC size) depends on the topology of the network, although attacks based on either the number of connections of a node or betweenness centrality were often the most efficient strategies. Sequential deletion of nodes in decreasing order of betweenness centrality was the most efficient attack strategy when targeting real-world networks. The relative efficiency of attack strategies often changed during the sequential removal of nodes, especially for networks with power-law degree distribution.
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Incumbent postal operators (POs) are particularly challenged with rapid technological developments and especially with digitalization which substitutes their letter mail, yet generally boosts parcel volumes. As a consequence, they...
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Incumbent postal operators (POs) are particularly challenged with rapid technological developments and especially with digitalization which substitutes their letter mail, yet generally boosts parcel volumes. As a consequence, they have to rethink their strategy, especially for their post office network. The article presents potential strategies and discusses the main trends in postal network evolution among incumbent POs, focusing in particular on the examples of Australia, New Zealand, Switzerland, the United Kingdom, Italy, and the United States, and assesses these strategies against a set of key performance and development indicators.
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Auf nationaler und internationaler Ebene vollziehen sich in der industriellen Produktion und im Dienstleistungsbereich tiefgreifende Wandlungsprozesse. Unternehmen mussen, um wettbewerbsfahig zu sein bzw. zu bleiben, anpassungs- u...
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Auf nationaler und internationaler Ebene vollziehen sich in der industriellen Produktion und im Dienstleistungsbereich tiefgreifende Wandlungsprozesse. Unternehmen mussen, um wettbewerbsfahig zu sein bzw. zu bleiben, anpassungs- und entwicklungsfahig sein. Durch diese Anforderungen entstehen fur Planungsdienstleister besondere Potenziale, ihr Know-how zu nutzen und weltweit als Dienstleistung anzubieten.
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In this paper, we examine how the structural characteristics of network topologies affect the network performance, and we examine the interplay between structural characteristics of network topologies and routing strategies. We co...
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In this paper, we examine how the structural characteristics of network topologies affect the network performance, and we examine the interplay between structural characteristics of network topologies and routing strategies. We consider routing strategies subject to practical constraints (router technology) and economic considerations (link costs) at layer 3. We propose two new routing methods suitable for implementation in large networks and examine various routing strategies (local, global, and hybrid) with tunable parameters and explore how they can enhance the network performance. We find that there exists an optimal range of values for the tunable parameters to achieve high network performance which depends on the structural properties of the network topology. We also show that our proposed routing scheme, which requires minimum local information, achieves high network performance.
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In this paper, we examine how the structural characteristics of network topologies affect the network performance, and we examine the interplay between structural characteristics of network topologies and routing strategies. We co...
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In this paper, we examine how the structural characteristics of network topologies affect the network performance, and we examine the interplay between structural characteristics of network topologies and routing strategies. We consider routing strategies subject to practical constraints (router technology) and economic considerations (link costs) at layer 3. We propose two new routing methods suitable for implementation in large networks and examine various routing strategies (local, global, and hybrid) with tunable parameters and explore how they can enhance the network performance. We find that there exists an optimal range of values for the tunable parameters to achieve high network performance which depends on the structural properties of the network topology. We also show that our proposed routing scheme, which requires minimum local information, achieves high network performance.
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