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Performance Modeling and System Management for Multi-component Online Services

by Christopher Stewart, Kai Shen , 2005
"... Many dynamic-content online services are comprised of multiple interacting components and data partitions distributed across server clusters. Understanding the performance of these services is crucial for efficient system management. This paper presents a profile-driven performance model for cluster ..."
Abstract - Cited by 117 (13 self) - Add to MetaCart
for cluster-based multi-component online services. Our offline constructed application profiles characterize component resource needs and intercomponent communications. With a given component placement strategy, the application profile can be used to predict system throughput and average response time

Tuple Routing Strategies for Distributed Eddies

by Feng Tian , David J. DeWitt , 2003
"... Many applications that consist of streams of data are inherently distributed. Since input stream rates and other system parameters such as the amount of available computing resources can fluctuate significantly, a stream query plan must be able to adapt to these changes. Routing tuples between ..."
Abstract - Cited by 71 (2 self) - Add to MetaCart
between operators of a distributed stream query plan is used in several data stream management systems as an adaptive query optimization technique. The routing policy used can have a significant impact on system performance. In this paper, we use a queuing network to model a distributed stream query

Flexible Data Streaming In Stream Cloud

by J Rethna , Virgil Jeny , Chetan Anil Joshi
"... Abstract: Most of the applications in some special domains such as Telecommunication systems, Share market, Fraud detection and network security which required online processing of incoming data. They produce very high incoming load which needs to process by multiple nodes. The current system is on ..."
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protocols which is used to dynamic resource management and load balancing of incoming load. Keywords: Data stream, Load balancing, Elasticity, Scalability, Flexibility I. INTRODUCTION Number of applications where large amount of data need to be processed in quasi-real-time process which is having

SMART Research using Linked Data – Sharing Research Data for Integrated Water Resources Management in the Lower Jordan Valley

by David Riepl, Jochen Klinger, Disy Informationssysteme Gmbh Karlsruhe
"... Abstract. In the region of the Lower Jordan River a steadily increasing population has access only to constantly decreasing natural freshwater resources. Integrated Water Resources Management (IWRM) considers social, economical and ecological objectives when deciding over long-term strategies in a s ..."
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Abstract. In the region of the Lower Jordan River a steadily increasing population has access only to constantly decreasing natural freshwater resources. Integrated Water Resources Management (IWRM) considers social, economical and ecological objectives when deciding over long-term strategies in a

A Self-Managing Wide-Area Data Streaming Service using Model-based Online Control

by Viraj Bhat, Manish Parashar, Mohit Kh, Nagarajan K, Scott Klasky - in Proc. 7 th IEEE Int. Conf. on Grid Computing , 2006
"... Abstract — Efficient and robust data streaming services are a critical requirement of emerging Grid applications, which are based on seamless interactions and coupling between geographically distributed application components. Furthermore the dynamism of Grid environments and applications requires t ..."
Abstract - Cited by 10 (2 self) - Add to MetaCart
that these services be able to continually manage and optimize their operation based on system state and application requirements. This paper presents a design and implementation of such a self-managing data-streaming service based on online control strategies. A Grid-based fusion workflow scenario is used

CMS 2001 Strategy Stream Understanding Organisational Strategy

by Ali Bakir
"... 'Strategy ' is apparently an easily understood concept; this has led academics to overlook research into its meaning in favour of prescribing/describing its formation. Their lack of success in this endeavour may be rooted in an insufficient understanding of the phenomenon, for when promine ..."
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prominent writers define strategy they conclude after much elaboration that it is an ‘elusive ’ phenomenon. This inquiry unravels the elusiveness of strategy by investigating managers ’ perception of strategy. Grounded theory is used, generating data from interviewing a theoretical sample of managers

Smart resource reconfiguration by exploiting dynamics in perceptual tasks

by Roderic Grupen, Allen Hanson, Edward Riseman - In Proceedings of International Conference on Robotics and Systems (IROS , 2005
"... Abstract — In robot and sensor networks, one of the key challenges is to decide when and where to deploy sensory resources to gather information of optimal value. The problem is essentially one of planning, scheduling and controlling the sensors in the network to acquire data from an environment tha ..."
Abstract - Cited by 11 (3 self) - Add to MetaCart
Abstract — In robot and sensor networks, one of the key challenges is to decide when and where to deploy sensory resources to gather information of optimal value. The problem is essentially one of planning, scheduling and controlling the sensors in the network to acquire data from an environment

Materials for an exploratory theory of the network society.

by Manuel Castells , Anthony Giddens , Alain Touraine , Anthony Smith , Benjamin Barber , Peter Hall , Roger-Pol Droit , Sophie Watson , Frank Webster , Krishan Kumar , David Lyon , Craig Calhoun , Jeffrey Henderson , Ramon Ramos , Jose E Rodrigues-Ibanez , Jose F Tezanos , Mary Kaldor , Stephen Jones , Christopher Freeman - The British Journal of Sociology , 2000
"... ABSTRACT This article aims at proposing some elements for a grounded theor y of the network society. The network society is the social structure characteristic of the Information Age, as tentatively identi ed by empirical, cross-cultural investigation. It permeates most societies in the world, in v ..."
Abstract - Cited by 122 (0 self) - Add to MetaCart
in this paper: they rely on data and sources presented in the updated version of my trilogy (Castells 2000a). For the sake of clarity, I will rst present the conceptual framework I use in my analysis of social structure. I will then proceed to enumerate the main transformations taking place in social structures

Stream Queries

by Milena Ivanova, Tore Risch, Milena Ivanova, Tore Risch , 2005
"... Scientific applications require processing high-volume on-line streams of numerical data from instruments and simulations. We present an extensible stream database system that allows scalable and flexible continuous queries on such streams. Application dependent streams and query functions are defin ..."
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are defined through an Object-Relational model. Distributed execution plans for continuous queries are described as high-level data flow distribution templates. Using a generic template we define two partitioning strategies for scalable parallel execution of expensive stream queries: window split and window

A Self-Managing Wide-Area Data Streaming Service using Model-based Online Control

by Scott Klasky
"... Abstract — Efficient and robust data streaming services are a critical requirement of emerging Grid applications, which are based on seamless interactions and coupling between geographically distributed application components. Furthermore the dynamism of Grid environments and applications requires t ..."
Abstract - Add to MetaCart
that these services be able to continually manage and optimize their operation based on system state and application requirements. This paper presents a design and implementation of such a self-managing data-streaming service based on online control strategies. A Grid-based fusion workflow scenario is used
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