high performance trading - 35 practical strategies and techniques - ward 2009
high performance trading - 35 practical strategies and techniques - ward 2009
... and out of, and picked up and xiv High Performance Trading This is a user manual of practical and usefulapproaches, strategies and techniques that you canimplement right away.“”read as and ... separates the level of achievement High Performance Trading 35 Practical Strategies and Techniques to EnhanceYour Trading Psychology and Performance by Steve Ward 13STRATEGY 1: Set Yourself Up ... trader.Steve Ward, 2009 xii High Performance Trading IntroductionThis book is entitled High Performance Trading and is a practical guide toenhancing your trading performance and psychology. It is...
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Tài liệu Experiences in Design and Implementation of a High Performance Transport Protocol doc
... with 1-1 0 bulk UDT flows, over 1Gb/s link between Chicago and Amsterdam Experiences in Design and Implementation of a High Performance Transport ProtocolYunhong Gu, Xinwei Hong, and Robert ... 1000ms Fairness and Friendliness50 TCP flows and 4 UDT flows between SARA and StarLightRealtime snapshot of the throughputThe 4 UDT flows have similar performance and leave enough ... Efficiency and Fairness Characteristics•Takes 7.5 seconds to reach 90% of the link capacity, independent of BDP•Satisfies max-min fairness if all the flows have the same end-to-end link...
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Tài liệu High-Performance Parallel Database Processing and Grid Databases- P1 pdf
... databases and related areas, it will serve as an indispensable and up-to-date reference. Prac-titioners contemplating building high- performance databases or seeking to gain agood understanding ... supporting high performance for large databases, and many of them haveincorporated parallelism and grid features into their products. Their commitmentto high- performance systems and parallelism, ... Message and Time Complexity Comparison Analysis 34912.2.6. Correctness of Grid-ACP 350 12.3. Handling Failure of Sites with Grid-ACP 351 12.3.1. Model for Storing Log Files at the Originator and Participating...
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Tài liệu High-Performance Parallel Database Processing and Grid Databases- P2 docx
... knowing the location of the resource. And a pay-as-you-gostrategy can be applied in computing, similar to the state-of-the-art gas and electricity distribution strategies. Data storages have reached ... non-attribute-based data partitioning.Attribute-based data partitioning uses hash and range data partitioning methods,whereas non-attribute-based data partitioning uses random-equal (round-robin)ProcnProc2Proc ... different from that of the partition-ing attribute, then a non-attribute-based partitioning, especially the random-equal(round-robin) is the best option. Random-unequal is explained here because,...
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Tài liệu High-Performance Parallel Database Processing and Grid Databases- P3 docx
... queries in high- performance parallel database systems have also been studied. These algo-rithms are the traditional method covering merge all and hierarchical merging, thetwo-phase method, and the ... components: local merge-sort costs and pipeline mergingcosts.The local sort operation in parallel redistribution binary-merge sort is similarto parallel merge-all sort and parallel binary-merge sort. ... redistribution binary-merge sort and 1 for parallel redistri-bution merge-all sort. The second concerns the number of merging passes involvedin the k-way merging. In parallel redistribution binary-merge...
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Tài liệu High-Performance Parallel Database Processing and Grid Databases- P4 pptx
... group-by and join opera-tions are described. First, in Section 6.1, an introduction to GroupBy-Join query isgiven. Sections 6.2 and 6.3 describe parallel algorithms for GroupBy-Before-Joinqueries, ... in which the group-by operation is executed before the join, and paral-lel algorithms on GroupBy-After-Join queries, in which the join is executed first,followed by the group-by operation. Section ... 6.5 and 6.6) describing thecost models for the two parallel GroupBy-Join queries.6.1 GROUPBY-JOIN QUERIESSQL queries in the real world are replete with group-by clauses and join opera-tions....
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Tài liệu High-Performance Parallel Database Processing and Grid Databases- P5 pptx
... best performance. An algorithm for parallel multi-index search query processing using a one-indexmethod is presented in Figure 7.20.Algorithm: Parallel-Multi-Index-Selection-One-Index-Access-Version(QueryQ and ... Parallel-Two-Index-Join-Category-1(indexesR&S)//In each processor:1. Let starting and ending values of the rangepartitioning used arestartval and endval2. If FRI-1 or FRI-3 is used ... selectivity,Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.NRI Schemes PRI Schemes FRI SchemesNRI-1 NRI-2 NRI-3 PRI-1 PRI-2 PRI-3 FRI-1 FRI-3Processor Selected All Se...
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Tài liệu High-Performance Parallel Database Processing and Grid Databases- P6 doc
... [10 0-1 99][ 0-1 99] [ 0-9 9]Bucket 13[ 0-9 9] [20 0-2 99][ 0-2 99] [ 0-9 9]Bucket 21[ 0-1 99] [ 0-9 9][ 0-9 9] [10 0-1 99]Bucket 22[ 0-1 99] [10 0-1 99][ 0-1 99] [10 0-1 99]Bucket 23[ 0-1 99] [20 0-2 99][ 0-2 99] [10 0-1 99]Bucket ... 2[ 0-1 99] [ 0-2 99][ 0-1 99] [10 0-1 99]Bucket 3[ 0-2 99] [ 0-2 99][ 0-2 99] [20 0-2 99]Figure 8.16 “One-way” divide and partial broadcastClass A Class BBucket 11[ 0-9 9] [ 0-9 9][ 0-9 9] [ 0-9 9]Bucket 12[ 0-9 9] ... [10 0-1 99]Bucket 31[ 0-2 99] [ 0-9 9][ 0-9 9] [20 0-2 99]Bucket 32[ 0-2 99] [10 0-1 99][ 0-1 99] [20 0-2 99]Bucket 33[ 0-2 99] [20 0-2 99][ 0-2 99] [20 0-2 99]Figure 8.17 “Two-way” divide and partial broadcastproduce...
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Tài liệu High-Performance Parallel Database Processing and Grid Databases- P7 ppt
... maintains the before-image and after-image of all write transactions. Recovery algorithms are based on two maintypes of updating: in-place updating and out-of-place updating. In-place updatingdirectly ... On the other hand, out-of-place updating maintains the newvalue separately. Write-ahead logging is used to store the before- and after-imageof the data item in the log. The before-image facilitates ... systems have a combined top-down and bottom-up design strat-egy, as individual sites are considered to be autonomous and evolve independently(top-down). On the other hand, a global layer of multidatabase...
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Tài liệu High-Performance Parallel Database Processing and Grid Databases- P8 pptx
... Grid-ACPFigure 12.1 shows the state diagram of the proposed grid-atomic commitment pro-tocol (Grid-ACP). A pre-abort state is introduced in the originator, and two newstates, the sleep and ... the Grid-atomic commit protocol (Grid-ACP) and proves the correctnessof the protocol. The Grid-ACP is extended to handle site failures in Section 12.3,including the comparison of the Grid-ACP ... DiscussionThe purpose of Grid-ACP and early-abort Grid-ACP is to deal with autonomy and heterogeneity between sites. Because of autonomy, synchronous communicationbetween the originator and participants...
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