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relay a cache coherence protocol for distributed transactional memory

Báo cáo hóa học:

Báo cáo hóa học: " A New Authentication Protocol for UMTS Mobile Networks Ja’afer Al-Saraireh and Sufian Yousef" pdf

Báo cáo khoa học

... messages between databases can be calculated as follows databases (VLR and HLR) are shown in Table and are calculated from the values in Tables and The authentication delay for the proposed protocol ... this paper, the UMTS authentication and key agreement protocol and the signalling traffic that are generated by registration, call termination, and call origination have been investigated and analyzed ... compared to the conventional UMTS approach J Al-Saraireh and S Yousef Table 13: Comparing the bandwidth for each activity between database and VLR/MSC Bandwidth between MS and VLR and between databases...
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a universal execution engine for distributed data-flow computing doc

a universal execution engine for distributed data-flow computing doc

Kĩ thuật Viễn thông

... [2]—remains a popular platform for parallel iterative computations with large inputs For example, the Apache Mahout machine learning library uses Hadoop as its execution engine [3] Several of the Mahout ... languages have not demonstrated as great scalability as MapReduce or Dryad, which sacrifice expressivity for efficiency 7.3 Declarative programming The relational algebra, which comprises a relatively ... fault tolerance across multiple iterations, and neither can support Dryad-style task dependency graphs Finally, Piccolo is a new programming model for dataparallel programming that uses a partitioned...
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A prioritized MAC protocol for multihop, event driven wireless sensor network

A prioritized MAC protocol for multihop, event driven wireless sensor network

Tổng hợp

... designed and tested ER-MAC on low node’s density (100 nodes over a 1000m*1000m area), ER-MAC may have problem on large scale network 2.3.5 Traffic-Adaptive MAC Protocol (TRAMA) TRAMA [7] is a TDMA-based ... in a forest for fire detection Sensors are attached to taxi cabs in a large metropolitan area to study the traffic conditions and plan routes effectively Clearly, there is a wide range of applications ... route-through traffic is more important than the originated traffic However, existing MAC protocols treat all packets indifferently, that may lead to the degradation in delay performance and quality of...
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A robust routing protocol for wireless mobile ad hoc networks

A robust routing protocol for wireless mobile ad hoc networks

Tổng hợp

... Overhead Performance of Adaptive RET 110 Figure 4.15 Delay Performance of Adaptive RET 110 ix A Robust Routing Protocol MANET List of Abbreviations LIST OF ABBREVIATIONS ABR AODV Associativity-Based ... criteria are considered, MANET protocols can be based on either Link State or Distance Vector Each of these strategies has its Table 2.1 gives a summary on these relative advantage and disadvantages ... Criteria Classification Characteristics Advantage/Disadvantage Examples Proactive (Tabledriven) Regular exchange of routing information DSDV[5] CGSR[6] WRP[7] Reactive (On-Demand) Initiate route Smaller...
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A smart TCP socket for distributed computing

A smart TCP socket for distributed computing

Tổng hợp

... data packets are recorded If the transmission time dramatically increases, after transmission rate exceeds a certain value, that value will be used as the estimated available bandwidth Pathload ... campus to APAN Japana NUS campus to CMU USA b local network segment APAN Japan to ftp server in Japan the same switch test on loopback interface Table 3.2: Network Paths for RTT Measurements a ... query handler called match-maker 2.4 Load Balancing Tools 15 allocates the best matched servers for each task The meta language in the Smart socket library provides mainly numerical type parameters...
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Performance analysis of a random search algorithm for distributed autonomous mobile robots

Performance analysis of a random search algorithm for distributed autonomous mobile robots

Tổng hợp

... in a circular array, similar to the light and ultrasonic range sensor layer These IR transceivers are standard IrDa 1.0 compliant They are directional and allow communication via the IR channel ... Designing a physical robot platform communicate with each other We designed the circuit for these IR transceivers, as it was not available as an additional option for the BrainStem GP 1.0 board They are ... take a step back and look at nature for ideas The reason being that nature itself has lots of proven working examples of real life cooperative systems How does a wolf pack coordinate and organize...
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A User Identity Management Protocol for Cloud Computing Paradigm

A User Identity Management Protocol for Cloud Computing Paradigm

Cơ sở dữ liệu

... applications quickly and to scale up applications as much as when needed The platform supports traditional Java™ and Linux, Apache, MySQL, PHP (LAMP) stack-based applications as well as new architectures ... system, and a natural evolution for data centers that employ automated systems management, workload balancing, and virtualization technologies A cloud infrastructure can be a cost efficient model for ... Unavailability of a web site may hinder the on-going transactions and it may lead to loss of money and customers Technologies such as load balancing hardware and software are aimed at ensuring availability...
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The impact of a cancer Survivorship Care Plan on gynecological cancer patient and health car provider reported outcomes (ROGY Care): study protocol for a pragmatic cluster randomized controlled trial potx

The impact of a cancer Survivorship Care Plan on gynecological cancer patient and health car provider reported outcomes (ROGY Care): study protocol for a pragmatic cluster randomized controlled trial potx

Sức khỏe phụ nữ

... socioeconomic variables such as age, education, marital status, and employment status, and clinical variables such as cancer stage at diagnosis, time after diagnosis, and initial treatment All measures ... different areas of the disease, diagnosis, treatment and care, and some qualitative aspects, for instance wishes for more information The questionnaire contains the following scales: (a) Information about ... usual care group with that of the SCP approach by giving a patient randomized to usual care more information than was intended for usual care Also, if usual care patients learn from other patients...
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PADS: A Policy Architecture for Distributed Storage Systems pptx

PADS: A Policy Architecture for Distributed Storage Systems pptx

Tổ chức sự kiện

... invalidations or bodies of updates should be sent Every update comprises an invalidation and a body An invalidation indicates that an update of a particular object occurred at a particular instant ... supports partialobject writes and also implements leases and cooperative caching Leases [8] increase availability by allowing a server to break a callback for unreachable clients Cooperative caching ... locally cached data to maximize the amount of data that a client can serve from its local state TRIP guarantees sequential consistency via a simple algorithm that exploits the constraint that all...
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Báo cáo khoa học:

Báo cáo khoa học: "a Toolkit for Distributed Perceptron Training and Prediction with MapReduce" doc

Báo cáo khoa học

... the same features The implementation is in Java, and we interface with the Hadoop cluster via the native Java API It can be easily adapted to a wide range of NLP tasks Incorporating new features ... for the increasing number of applications that need to perform large-scale structured learning This is the first freely available implementation of an approach that has already been applied with ... data is split and distributed to the worker nodes The set of training examples in a data split is streamed to map workers as pairs (sentence-id, (xt , yt )) Each map worker performs a standard...
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Chord: A Scalable Peer-to-peer Lookup Protocol for Internet Applications ppt

Chord: A Scalable Peer-to-peer Lookup Protocol for Internet Applications ppt

Quản trị mạng

... since each participant need provide capacity only for the average load, not for that participant’s peak load Dabek et al describe a realization of this idea that uses Chord to map data blocks ... is a variant of the Plaxton algorithm Like Chord, it guarantees that queries make no more than a logarithmic number of hops and that keys are well-balanced The Plaxton protocol s main advantage ... that map to a particular node, thus creating a badly distributed set of keys As with standard hashing, however, we expect that a non-adversarial set of keys can be analyzed as if it were random...
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pattern-oriented software architecture volume 4 a pattern language for distributed computing

pattern-oriented software architecture volume 4 a pattern language for distributed computing

Đại cương

... several distribution and pattern experts Ademar Aguimar, Steve Berczuk, Alan O’Callaghan, Ekatarina Chtcherbina, Jens Coldewey, Richard Gabriel, Ian Graham, Prashant Jain, Nora Koch, Doug Lea, Klaus ... (522), ABSTRACT FACTORY (525), BUILDER (527), FACTORY METHOD (529), and DISPOSAL METHOD (531) Database Access: DATABASE ACCESS LAYER (538), DATA MAPPER (540), ROW DATA GATEWAY (542), TABLE DATA GATEWAY ... 21 Database Access Database Access Layer ** Data Mapper ** Row Data Gateway ** Table Data Gateway ** Active Record 533 538 540 542 544 546 22 A Departing...
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Báo cáo hóa học:

Báo cáo hóa học: " A fast iterative localized re-authentication protocol for UMTS-WLAN heterogeneous mobile communication networks" pot

Hóa học - Dầu khí

... Re-authentication Full Authentication MS AP Local AVs Authentication Agent (LAA) Iterative AVs Generation During the full authentication session AVs Database AVs RADIUS/AAA Server Authentication Vectors ... New AVs Iterative AVs Generation New AVs RADIUS/AAA Server Local Authentication Agent (LAA) Counter _A( i) Nonce _A( i) Fast_ID(i-1) Iterative AVs Generation Page of 16 IMSI CK IK SHA-1 MK PRF K_auth ... domain and the WLAN domain As long as a number of full authentication sessions are increased, a vast amount of messages are traveling between the 3G/UMTS domain and the WLAN domain; meanwhile, a...
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Báo cáo hóa học:

Báo cáo hóa học: " A QoS guaranteeing MAC layer protocol for the “underdog” traffic" ppt

Hóa học - Dầu khí

... simultaneously carrying higher layer datagrams originating from another STA within a BSS or a device external to a BSS via a wired LAN The collision avoidance (CA) mechanism of CSMA/CA cannot guarantee ... before proceeding to transmit, then an (H + P)/R amount of time to for an interface to transmit a packet consisting of H header and trailer bits and P payload bits at a data rate R, then a τ amount ... beacon, Data/ CF-Poll, Data/CF-ACK, and CF-NULL frames, respectively CF-Null frames are transmitted by a polled STA if the STA does not have any pending data to send, τ is the propagation delay...
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Báo cáo hóa học:

Báo cáo hóa học: " A scalable multi-sink gradient-based routing protocol for traffic load balancing" pot

Hóa học - Dầu khí

... the proposed addressing-free forwarding strategy GLOBAL includes an addressing-free data forwarding strategy In GLOBAL, if a node (say node A) updates its gradient after receiving a packet, the ... that the ADV packet has traversed • max_redr: The maximum REDR value among REDR values of sensor nodes that the ADV packet has traversed When a sensor node (say node i) initially receives an ADV ... is a weighting factor of both parameters and ranges between and After updating its local variables, node i updates the fields in the ADV packet from its local variables as follows: hcnt = path_hcnt,...
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báo cáo hóa học:

báo cáo hóa học: " A protocol for the emergency department management of acute undifferentiated febrile illness in India" potx

Hóa học - Dầu khí

... R, Colford JM Jr, Reingold AL, Kalantri S: Nonmalarial acute undifferentiated fever in a rural hospital in central India: diagnostic uncertainty and overtreatment with antimalarial agents Am J ... the protocol, if an eligible patient was stable and had had less than days of fever, all investigations and antimicrobial therapy were deferred, and the patient was prescribed antipyretics and asked ... 15(6):975-7 Chandy S, Yoshimatsu K, Boorugu HK, Chrispal A, Thomas K, Peedicayil A, Abraham P, Arikawa J, Sridharan G: Acute febrile illness caused by hantavirus: serological and molecular evidence...
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Báo cáo hóa học:

Báo cáo hóa học: " Evaluation of a TDMA-based energy efficient MAC protocol for multiple capsule networks" pot

Hóa học - Dầu khí

... the advantages of simplicity, small overhead, small latency, etc TRAMA [11] and LMAC [12] are typical schedule-based MAC protocols Compared with contention-based MAC protocol, schedule-based MAC ... data are gathered from Protocol design 3.1 Overview and attributes Multiple capsule networks are composed of a coordinator node and several capsules moving along the GI tract It has several attributes ... data size For example, the pressure and temperature sampled data may be smaller in size and lower in sampling rate than the real time image data Finally, unlike most WSN, multiple capsule networks...
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Báo cáo hóa học:

Báo cáo hóa học: " Research Article Impact of LQI-Based Routing Metrics on the Performance of a One-to-One Routing Protocol for IEEE 802.15.4 Multihop Networks" docx

Hóa học - Dầu khí

... on Advanced Information Networking and Applications Workshops/Symposia (AINAW ’07), vol 1, pp 159–164, Niagara Falls, Canada, May 2007 [16] R Draves, J Padhye, and B Zill, “Routing in multi-radio, ... high average LQI values For instance, the standard deviation is below for average LQI values beyond 105 (which lead to LDR values between 99.9% and 100%) As the average LQI decreases, the standard ... average LQI values are not as reliable For instance, a link with an average LQI of 78.1 showed an LDR of 61.5% whereas another link with an average LQI of 78.2 showed an LDR of 94.5% Note that,...
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Báo cáo hóa học:

Báo cáo hóa học: "Research Article A Random Ant-Like Unicast Routing Protocol for Wireless Ad Hoc Sensor Networks and Performance Evaluation" pdf

Hóa học - Dầu khí

... header The data packet is treated like any data packet that cannot be forwarded at a node due to an invalid path in its header The node carries out a route discovery operation, as described earlier, ... provide performance comparison with other routing algorithms We also conduct an approximated mathematical analysis for the RAUR to analyze its performance RAUR is a source routing-based algorithm ... for routes that lead to desired destinations This can happen in one of the following cases: (1) a source node needs to find a path for a data packet for a desired destination, (2) a node forwarding...
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báo cáo hóa học:

báo cáo hóa học:" A power efficient MAC protocol for wireless body area networks" pot

Hóa học - Dầu khí

... applications such as BAN Another argument in favor of using out-of-band wakeup radio is that a wakeup radio-based scheme in BAN can save a significant amount of power 2.2 Motivation A BAN needs ... radio can be used to design a power efficient MAC A TDMA-based approach has many advantages over other similar techniques such as CSMA/CA and FDMA Authors of [12] have provided a comparison between ... model and is reasonable for delay sensitive application scenarios The fact is that we used purely TDMA based mechanism and has only radio wakeup delay and transmission delay This is evidently a major...
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