research in internet scale computing systems

... already interacted inthe second research question In the third research question, we will focus on the relationshipbetween users who did not interact with each other In large-scale collaborative systems, ... training and several hours for testing using a powerful server while the random forest based approach takes several minutes for trainingand several seconds for testing on the same dataset using ... labora-5000 engineers in designing a new aircraft engine as a large-scale collaboration [Kolowich, 2013]reported a case when the number of users in real-time collaborative editing systems reaches

Ngày tải lên: 25/05/2021, 22:56

... the programming of grid appli-cations and Web services increase their interoperability, developing such com-ponents and configuring the interconnecting services is a demanding task In this paper, ... service as plain data, since code has no valid representation in the WSDL file defining the service interface, which leads to the difficulty of assigning compatible interfaces to code-carrying parameters ... and round-robin, do not take into account any control parameters but the constraints of the submission method Processor architecture and operating system constraints are taking into account The

Ngày tải lên: 02/07/2014, 20:21

... parameters by implementing the following two interfaces: public interface Master<E> { public E[] [] split(E[] input, int grain); public E[] join(E[] [] results); } public interface Worker<E> ... steering thread that is installed by the user and runs the wavefront-sorting procedure in its initialization method After the initialization is finished, the steering thread keeps running con-currently ... public E[] compute(E[] input); } The Master (line 1-3) determines how an input array of some type E is split into independent subsets, and the Worker (line 4-5) describes how a single subset is processed

Ngày tải lên: 02/07/2014, 20:21

... applications in ASSIST In 11th Intl Euro-Par 2005: Parallel and Distributed Computing, number 3149 in "Lecture Notes in Computer Science" Springer Verlag, 2004 [5] M Aldinucci and M ... grid systems In Sergei Gorlatch and Marco Danelutto, editors, CoreGRID Workshop on Integrated research in Grid Computing, pages 31-40, Pisa, Italy, November 2005 CoreGRID [9] Platform Computing ... distributed computing and high-performance grids In Proceedings of the ACM Java Grande Conference, pages 97-106, June 2000 [17] T Ylonen SSH - secure login connections over the internet In Proceedings

Ngày tải lên: 02/07/2014, 20:21

... eventually determine the in-crease/decrease of a certain magnitude in the allocated computing power, inde-pendently of the kind of computing resources This decision is passed to the commit phase, ... execution function is realized by the executor that interprets the instruc-tions of the plan Two kinds of instrucinstruc-tions can be used in plans: invocainstruc-tions of elementary actions, which ... architecture to interact with the running application (e.g adding and removing processes to the application, moving data between processing nodes and so on) The general schema does not constrain the adap-tation

Ngày tải lên: 02/07/2014, 20:21

... the hops criterion while varying the clustering coefficient We can see in this figure that the hops criterion is very efficient in duplicate elimination, while maintaining high network coverage, ... threshold increases the efficiency of the algorithm significantly This happens because nodes gradually start eliminating traffic for certain groups of nodes instead of all of them starting eliminating ... and L Breslau Making Gnutella-like P2P Systems Scalable ACM SIGCOMM, 2003 [2] A Crespo and H Garcia-Molina Routing Indices for Peer-to-Peer Systems Int Conf Distributed Comp Systems, 2002 [3]

Ngày tải lên: 02/07/2014, 20:21

... intervention in a production system. These failures are very expensive to main- tain since they require human intervention. When the systems start growing 130 INTEGRATED RESEARCH IN GRID COMPUTING ... C.Redlin. "Measuring the Effectiveness of Self-Healing Autonomic Sys-tems", Proc. 2nd Int. Conf. on Autonomic Computing (1CAC'05), 2005 134 INTEGRATED RESEARCH IN GRID COMPUTING ... Systems I Foster IFIP International Conference on Network and Parallel Computing, Springer-Verlag LNCS 3779, pp 2-13,2005 ON THE INTEGRATION...138 INTEGRATED RESEARCH IN GRID COMPUTING

Ngày tải lên: 02/07/2014, 20:21

... clusters networked services into domains, and restricts monitoring to inter-domain paths This approach, which resembles the inter/in-tra domain routing dichotomy in the Internet, strikes a balance ... several domains, with each domain operating one or more monitoring sensors Each sensor may monitor the link between the domain and the Internet (as in domain 1 and 3), or an internal link of a local ... structure For instance, the Domain Name System (DNS) is not adequate to map monitoring domains, since the same DNS subnetwork may in principle contain several monitoring domains, and a domain may overlap

Ngày tải lên: 02/07/2014, 20:21

... Trang 7176 INTEGRATED RESEARCH IN GRID COMPUTING 1 Introduction The Grid is envisioned as an open, ubiquitous infrastructure that allows treating all kinds of computer-related services in a standard, ... Preliminary Results and Future Work We have performed our experiments in a real testbed connecting two clus-ters over the Internet located in different domains The first one consists of 4 machines ... the insufficient amount of free resources required by incoming jobs Application-level checkpointing has been used in order to provide full portability in the heterogeneous Grid environment In

Ngày tải lên: 02/07/2014, 20:21

... swapping tasks between machines by choosing first those tasks where the largest benefits in terms of minimizing the makespan will be obtained for the smallest expense We call this approach GAIN ... starting with HEFT, LOSS starting with HBMCT, and GAIN (in the latter case, a DAG scheduling heuristic would not make any difference, since the initial schedule is built on the basis of assigning ... machines is given Using this input, traditional studies from the literature aim to assign tasks onto machines in such a way that the overall schedule length is minimized and precedence constraints

Ngày tải lên: 02/07/2014, 20:21

... Comput-ing time=21h 32') and stores them into DW 7 Conclusion The ISS integration into the VIOLA Meta-scheduling environment is part of the SwissGRID initiative and will be realised in a co-operation ... Ziegler, On Scheduling in UNICORE - Ex-tending the Web Services Agreement based Resource Management Framework, In Proc of Parallel Computing 2005 (ParCo2005), Malaga, Spain, 2005, to appear ... Management in a Dis-tributed Environment, In Proc of 1st IEEE/ACM International Workshop on Grid Com-puting (Grid 2000) Volume 1971 of Lecture Notes in Computer Science, pages 47-54, Springer,

Ngày tải lên: 02/07/2014, 20:21

... study mentions Berkeley in of 19 $1B+ industries from IT research, Stanford times • Timesharing (SDS 940), Client-Server Computing (BSD Unix), Graphics, Entertainment, Internet, LANs, Workstations ... engine – Success = Train students to go forth and replicate – Promiscuous publication, including source code – Ideal launching point for startups 14 Why a New Funding Model? • DARPA has exiting ... long-term research in experimental computing systems • NSF swamped with proposals, yielding even more conservative decisions • Community emphasis on theoretical vs experimentaloriented systems- building...

Ngày tải lên: 24/10/2014, 13:03

... logistics industry, and inventory control in retailing industry Although there are some prior studies on improving time efficiency of tag searching, energy efficiency in tag searching has not been investigated ... remaining tags as the local searching result SðRi Þ We can obtain the final searching result by combining all the local searching results of the M readers We now analyze how to set k and f k to minimize ... TSiM is poor The authors also considered joint optimization of tag searching and reader scheduling in [36] The Searching by iterative Testing and Eliminating Protocol (STEP) [19] can guarantee that...

Ngày tải lên: 03/11/2015, 21:22

... Security in computing can greatly benefit from our experiences in other fields, though the innovative sides of computing often demand original solutions Additionally, since computing means employing ... as intellectual value produced and then owned by the originator 14 Introduction • Criminal acts identify definitely offending behavior within computing systems and thereby aim at restricting ... prepared to understand inference control as a basic goal of engineering security in computing systems Sequential programs, parallel programs, (logic-oriented) information systems in general and statistical...

Ngày tải lên: 03/04/2014, 12:22

... deciding, recommending, selecting, judging, explaining, discriminating, supporting, and concluding The essential evaluation in the literature review is to clearly distinguish among opinions, theories, ... demonstrated by activities such as separating, connecting, comparing, selecting, and explaining In essence, analysis entails identifying why the information being presented is of importance Figure ... term Manufacturing Resource Planning or Material Requirements Planning (MRP) systems in the 1970s-1980s became Enterprise Resource Planning (ERP) systems in the 1990s The novice IS researchers may...

Ngày tải lên: 02/06/2014, 09:38

... may find applications in channel coding for communication systems and in fault-tolerant data processing systems containing error correction Real-number codes can be constructed easily from finite-field ... with input memory order m; that is, inputs remain in the encoder for an additional m time units after entering Typically, n and k are small integers, k < n, the information sequence is divided into ... code in systematic form [16] is used to compute parity values associated with the processing outputs as shown in Figure Certain classes of errors occurring anywhere in the overall system including...

Ngày tải lên: 20/06/2014, 22:20

... summarized in Algorithm In what follows we discuss the form of the objective function j(·) in (8) and its calculation 3.2 Estimating the principal singular value using Gerschgorin circle The Gerschgorin ... selection and Tx/Rx beamforming for large -scale MIMO systems in 60 GHz channels EURASIP Journal on Wireless Communications and Networking 2011 2011:59 Note Note that in obtaining (20) without loss ... first entry serving as the index of the antenna subset and the other entry indicating the corresponding occupation probability We divide each iteration into nt + nr subiterations, and in each sub-iteration,...

Ngày tải lên: 21/06/2014, 01:20

... and l a continuous linear mapping of H# Y into F, then there ∗ exists a unique continuous linear mapping L : H# Y → F such that l L ◦ i Proposition 3.4 Let j 1, , N, and fix x in Ω The noncoercive ... de Chile, Informe Interno, No MA88-8-352 H Douanla and N Svanstedt, “Reiterated homogenization of linear eigenvalue problems in multiscale perforated domains beyond the periodic setting,” Communications ... Communications in Mathematical Analysis, vol 11, no 1, pp 61–93, 2011 S Kaizu, “Homogenization of eigenvalue problems for the Laplace operator with nonlinear terms in domains in many tiny holes,” Nonlinear...

Ngày tải lên: 21/06/2014, 11:20

... Networking encrypting a shared key ks between a service sensor and itself in secure channel establishment, decoding the keying information obtained from the associated service node in keying information ... summarized in Section Preliminaries, models, and assumptions are sketched in Section The insitu key establishment framework is introduced in Section 4, and the three instantiations are outlined in Section ... as sacrifices for disseminating keying information to worker sensors in the vicinity Worker sensors are in charge of normal network operations such as sensing and reporting Two worker sensors...

Ngày tải lên: 21/06/2014, 20:20

... spectrum sensing is continuous in time In practical systems, data transmission is carried out orthogonally to the spectrum sensing, either in frequency or in time When the orthogonality is in frequency, ... , minCm n | X0 , minCm n | X0 n=m / n=m / , (7) where the operation of minimization stands for choosing the action incurring the minimum cost Note that, in (7), EURASIP Journal on Advances in ... sensing with blind period in 10 EURASIP Journal on Advances in Signal Processing Appendices Similarly, we have A Dynamic Programming t P X0 | T1 = s1 In this section, we briefly introduce the principle...

Ngày tải lên: 21/06/2014, 20:20