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- Wired Geometric Routing
- Routing substrates for overlay networks are an important building block for large distributed applications. Many existing substrates are based on a random identifier space and therefore do not respect node locality when routing data. This can lead to lower performance for locality-sensitive applications, such as web caching, distributed gaming, and...
- Tags: Harvard College, Wired Inc., Network, Substrate, Locality, Networking
- White papers 2007-01-26
- Sub-query gives no data and this results in an error
- I have various sub-queries which are used in a query which summarises related information. One of the sub-queries is designed to find out how many referrals were received in a particular month in a particular locality. There are 9 different localities. The user enters the parameters: [locality],...
- Tags: Databases, claire.milligan@..., locality, referral
- Discussion threads 2007-09-24
- Maximizing Data Locality in Distributed Systems
- The effectiveness of a distributed system hinges on the manner in which tasks and data are assigned to the underlying system resources. Moreover, nowadays large-scale distributed systems must accommodate heterogeneity in both the offered load and in the makeup of the available storage and compute capacity. The ideal resource assignment...
- Tags: Distributed System
- White papers 2006-05-31
- Locality-Aware and Churn-Resilient Load Balancing Algorithms in Structured Peer-to-Peer Networks
- Structured peer-to-peer overlay networks like Distributed Hash Tables DHTs map data items to the network based on a consistent hashing function. Such mapping for data distribution has an inherent load balance problem. Data redistribution algorithms based on randomized matching of heavily loaded nodes with light ones can deal with the...
- Tags: Algorithm, Aware, Network, P2P, Locality, University Of Arkansas, Engineering, Networking
- White papers 2006-10-02
- Improving the Performance of Passive Network Monitoring Applications Using Locality Buffering
- This paper presents a novel approach for improving the performance of a large class of CPU and memory intensive passive network monitoring applications, such as intrusion detection systems, traffic characterization applications, and NetFlow export probes. The approach, called locality buffering, reorders the captured packets by clustering packets with the same...
- Tags: Packet, Performance, Network, Locality, Monitoring, Network Monitoring, Network Administration, Networking
- White papers 2007-08-23
- Parallel Processing Using Data Localization for MPEG2 Encoding on OSCAR Chip Multiprocessor
- Need for efficient processing of multimedia applications on PCs, mobile phones, games and so on have been increasing. Especially, low cost, low power consumption and high performance processors for multi-media applications have been expected. To satisfy the demands, chip multiprocessor architectures which allow giving scalability using multigrain parallelism are attracting...
- Tags: MPEG-2, Parallel Processing, Chip, Processors, Semiconductors, Hardware, Components
- White papers 2007-12-01
- Metaserver Locality and Scalability in a Distributed NFS
- The leveraging of existing storage space in a cluster is a desirable characteristic of a parallel file system. While undoubtedly an advantage from the point of view of resource management, this possibility may face the administrator with a wide variety of alternatives for configuring the file server, whose optimal layout...
- Tags: Network File System, Locality, Scalability, Metaserver Inc., IMAG, File Servers, Servers, Enterprise Software, Software, Hardware
- White papers 2006-04-05
- Directed Graph Embedding
- This paper proposes the Directed Graph Embedding DGE method that embeds vertices on a directed graph into a vector space by considering the link structure of graphs. The basic idea is to preserve the locality property of vertices on a directed graph in the embedded space. This paper uses the...
- Tags: Graph, Idea, Channel Management, Marketing
- White papers 2006-10-16
- Strong-Diameter Decompositions of Minor Free Graphs
- As networks grow large and complex, a key approach in managing information and constructing algorithms is to decompose the network into locality-preserving clusters. Then, information and/or management can be divided between the clusters, such that every node is responsible only for clusters for which it belongs. Such decompositions into locality...
- Tags: Network, Decomposition, Networking
- White papers 2007-03-27
- Locality Driven Key Management Architecture for Mobile Ad-Hoc Networks
- A fundamental issue of securing mobile ad-hoc networks is to ensure mobile nodes can authenticate each other. Because of its strength and efficiency, public key and digital signature is an ideal building block to construct the authentication service. Although this is already mature in the Internet applications, providing public key...
- Tags: Mobile, Network, Locality, Authentication, Advertising & Promotion, Security, Marketing
- White papers 2006-10-14
- FreeLoader: Scavenging Desktop Storage Resources for Scientific Data
- High-end computing is suffering a data deluge from experiments, simulations, and apparatus that creates overwhelming application dataset sizes. End-user workstations - despite more processing power than ever before - are ill-equipped to cope with such data demands due to insufficient secondary storage space and I/O rates. Meanwhile, a large portion...
- Tags: Desktop, FreeLoader Inc., Association For Computing Machinery, Data Access, Computing, Storage, Hardware
- White papers 2005-11-18
- Adaptive Data Placement for Wide-Area Sensing Services
- Wide-area sensing services enable users to query data collected from multitudes of widely distributed sensors. This paper considers the novel distributed database workload characteristics of these services, and present IDP, an online, adaptive data placement and replication system tailored to this workload. Given a hierarchical database, IDP automatically partitions it...
- Tags: Storage, Databases, Hardware, Enterprise Software, Software, Data Management
- White papers 2006-04-04
- Perfect Spatial Hashing
- This paper explores using hashing to pack sparse data into a compact table while retaining efficient random access. The paper specifically designs a perfect multidimensional hash function - one that is precomputed on static data to have no hash collisions. Because the hash function makes a single reference to a...
- Tags: 3D, Graphics
- White papers 2006-04-25
- Scalable Near Identical Image and Shot Detection
- This paper proposes and compares two novel schemes for near duplicate image and video-shot detection. The first approach is based on global hierarchical colour histograms, using Locality Sensitive Hashing for fast retrieval. The second approach uses local feature descriptors SIFT and for retrieval exploits techniques used in the information retrieval...
- Tags: Association For Computing Machinery, Information Retrieval
- White papers 2007-04-24
- Accelerating Security Applications With Intel Multi-Core Processors
- The transition to multi-core processors offers flexibility for development and optimization of higher performance applications. Multi-core architectures can significantly improve program flow so that cache memory associated with each execution core is used more effectively. With multiple caches, optimizing data locality is possible, driving higher cache-hit rates and improved overall...
- Tags: Multi-core Processor, Quad Processor, Performance, Security Application, Performance Improvement, Intel Corp., Performance Management, Processors, Security, Human Resources, Workforce Management, Semiconductors, Hardware, Components
- White papers 2006-07-01
- Load Balancing and Data Locality in Adaptive Hierarchical N-Body Methods: Barnes-Hut, Fast Multipole, and Radiosity
- Hierarchical N-body methods, which are based on a fundamental insight into the nature of many physical processes, are increasingly being used to solve large-scale problems in a variety of scientific/engineering domains. Applications that use these methods are challenging to parallelize effectively, however, owing to their nonuniform, dynamically changing characteristics and...
- Tags: Method, Load Balancing, Productivity, Performance Management, Network Technology, Human Resources, Workforce Management, Networking
- White papers 2007-10-22
- Cache Optimization for Coarse Grain Task Parallel Processing Using Inter-Array Padding
- The wide use of multiprocessor system has been making automatic parallelizing compilers more important. To improve the performance of multiprocessor system more by compiler, multigrain parallelization is important. In multigrain parallelization, coarse grain task parallelism among loops and subroutines and near fine grain parallelism among statements is used in addition...
- Tags: Grain, Optimization, Compiler, Parallel Processing, Multiprocessor, Development Tools, Processors, Software Development, Software/Web Development, Semiconductors, Hardware, Components
- White papers 2007-12-01
- type and price
- i was wondering i need a newcomputer (tor my old 1 apart) but i was a good computer that i can run some demanding games on and possibly do some dvd editing wat kind of computer am i looking for? should i get a regular computer and just add to...
- Tags: computer
- Q&A 2005-12-14
- Tech Tip: Troubleshoot event 9318 and event 9322 error messages in Exchange
- Here's how to troubleshoot event 9318 and event 9322 error messages in Exchange. In a multiserver Exchange 5.5 environment, you may occasionally receive error messages in your Application event log. If these errors occur often enough, you may also find that mails are backing...
- Tags: Guest Contributor, E-mail Administration Tips Newsletter, Network, Remote Server, Server, Error, Error Message, Network Outage, RPC, Networking
- Technical articles 2004-07-27
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