1,385,624 research outputs found
An SMDP-based Resource Management Scheme for Distributed Cloud Systems
In this paper, the resource management problem in geographically distributed
cloud systems is considered. The Follow Me Cloud concept which enables service
migration across federated data centers (DCs) is adopted. Therefore, there are
two types of service requests to the DC, i.e., new requests (NRs) initiated in
the local service area and migration requests (MRs) generated when mobile users
move across service areas. A novel resource management scheme is proposed to
help the resource manager decide whether to accept the service requests (NRs or
MRs) or not and determine how much resources should be allocated to each
service (if accepted). The optimization objective is to maximize the average
system reward and keep the rejection probability of service requests under a
certain threshold. Numerical results indicate that the proposed scheme can
significantly improve the overall system utility as well as the user experience
compared with other resource management schemes.Comment: 5 pages, 5 figures, conferenc
SLA-Oriented Resource Provisioning for Cloud Computing: Challenges, Architecture, and Solutions
Cloud computing systems promise to offer subscription-oriented,
enterprise-quality computing services to users worldwide. With the increased
demand for delivering services to a large number of users, they need to offer
differentiated services to users and meet their quality expectations. Existing
resource management systems in data centers are yet to support Service Level
Agreement (SLA)-oriented resource allocation, and thus need to be enhanced to
realize cloud computing and utility computing. In addition, no work has been
done to collectively incorporate customer-driven service management,
computational risk management, and autonomic resource management into a
market-based resource management system to target the rapidly changing
enterprise requirements of Cloud computing. This paper presents vision,
challenges, and architectural elements of SLA-oriented resource management. The
proposed architecture supports integration of marketbased provisioning policies
and virtualisation technologies for flexible allocation of resources to
applications. The performance results obtained from our working prototype
system shows the feasibility and effectiveness of SLA-based resource
provisioning in Clouds.Comment: 10 pages, 7 figures, Conference Keynote Paper: 2011 IEEE
International Conference on Cloud and Service Computing (CSC 2011, IEEE
Press, USA), Hong Kong, China, December 12-14, 201
Best Practices in Diversity Management
[Excerpt] The International Personnel Management Association (IPMA) has undertaken a human resource benchmarking project with the National Association of State Personnel Executives (NASPE). IPMA is an organization representing over 1,700 organizations and 2,500 individuals involved in public sector human resource management. The Association’s mission is to optimize organizational and individual performance in the public service by providing human resource leadership, professional development, information and services. IPMA has established an International Human Resource Advisory Board to facilitate the exchange of information on international human resource developments. The International Human Resource Advisory Board has 37 members from 35 countries and international organizations. Additional information about IPMA can be obtained at http://www.ipma-hr.org
Cloudbus Toolkit for Market-Oriented Cloud Computing
This keynote paper: (1) presents the 21st century vision of computing and
identifies various IT paradigms promising to deliver computing as a utility;
(2) defines the architecture for creating market-oriented Clouds and computing
atmosphere by leveraging technologies such as virtual machines; (3) provides
thoughts on market-based resource management strategies that encompass both
customer-driven service management and computational risk management to sustain
SLA-oriented resource allocation; (4) presents the work carried out as part of
our new Cloud Computing initiative, called Cloudbus: (i) Aneka, a Platform as a
Service software system containing SDK (Software Development Kit) for
construction of Cloud applications and deployment on private or public Clouds,
in addition to supporting market-oriented resource management; (ii)
internetworking of Clouds for dynamic creation of federated computing
environments for scaling of elastic applications; (iii) creation of 3rd party
Cloud brokering services for building content delivery networks and e-Science
applications and their deployment on capabilities of IaaS providers such as
Amazon along with Grid mashups; (iv) CloudSim supporting modelling and
simulation of Clouds for performance studies; (v) Energy Efficient Resource
Allocation Mechanisms and Techniques for creation and management of Green
Clouds; and (vi) pathways for future research.Comment: 21 pages, 6 figures, 2 tables, Conference pape
A FUNCTIONAL SKETCH FOR RESOURCES MANAGEMENT IN COLLABORATIVE SYSTEMS FOR BUSINESS
This paper presents a functional design sketch for the resource management module of a highly scalable collaborative system. Small and medium enterprises require such tools in order to benefit from and develop innovative business ideas and technologies. As computing power is a modern increasing demand and no easy and cheap solutions are defined, especially small companies or emerging business projects abide a more accessible alternative. Our work targets to settle a model for how P2P architecture can be used as infrastructure for a collaborative system that delivers resource access services. We are focused on finding a workable collaborative strategy between peers so that the system offers a cheap, trustable and quality service. Thus, in this phase we are not concerned about solutions for a specific type of task to be executed by peers, but only considering CPU power as resource. This work concerns the resource management module as a part of a larger project in which we aim to build a collaborative system for businesses with important resource demandsresource management, p2p, open-systems, service oriented computing, collaborative systems
Human Resource Management, Service Quality, and Economic Performance in Call Centers
This paper examines the relationship between human resource practices, operational outcomes, and economic performance in call centers. The study draws on a sample of 64 call centers serving the mass market in a large telecommunications services company. Surveys of 1,243 employees in the 64 centers were aggregated to the call center level and matched to archival data on service process quality, as measured by customer surveys; call handling time, revenues per call, and net revenues per call. Our path analysis shows that human resource practices emphasizing employee training, discretion, and rewards lead to higher service quality, higher revenues per call, and higher net revenues per call. In addition, service quality mediates the relationship between human resource practices and these economic outcomes. There is no significant relationship between HR practices and labor efficiency, as measured by call handling time; and labor efficiency is inversely related to revenue generation
Lessons for the Forest Service from State Trust Land Management Experience
This paper argues that state trust land management experience is potentially a source of valuable insights and examples for the U.S. Forest Service. The paper sketches historic and current trends in public resource administration to define what constitutes useful new ideas which might aid the agency in its present crisis. In spite of being this nation's oldest approach to public resource management, the state trust lands are an appropriate source of new ideas in an era in which, the paper suggests: (1) the courts are receding as a major source of executive accountability, (2) the legitimacy of federal agencies, particularly those whose authority is rooted in science, is declining, and (3) the institutional framework for public resource management is rapidly fragmenting and diversifying. The Forest Service could fruitfully explore (1) the trust standard of prudence, particularly requirements for trustee accountability and record keeping; (2) the role of the beneficiary in trust accountability and constituency building; (3) the state trust manager's adaptation of the trust notion of a portfolio and risk management; and (4) state trust land agency's different approaches to tying program funding to income without eliminating the legislature's role in appropriations. The trust mandate as embodied in western trust land management organizations also provides (5) examples of institutional flexibility that could be instructive to the agency in this new era of partnerships, and (6) a raft of experience doing the same thing the Forest Service does (e.g., leasing grazing and minerals) which ought to inform Forest Service consideration of alternative management tools.
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