Improving MapReduce Performance in Heterogeneous Environments ppt

... Association 8th USENIX Symposium on Operating Systems Design and Implementation 29 Improving MapReduce Performance in Heterogeneous Environments Matei Zaharia, Andy Konwinski, Anthony D. Joseph, Randy ... orders incorrectly. used the simple heuristic presented above in our experi- ments in this paper. We explain this misestimation here because it is an interesting, subtle prob...

Ngày tải lên: 30/03/2014, 16:20

... DataReaderColumnOrdinalForm.cs // Namespaces, variables, and constants using System; using System.Configuration; using System.Text; using System.Data; using System.Data.SqlClient; private int co_OrderId; ... co_OrderId; private int co_CustomerId; private int co_EmployeeId; private int co_OrderDate; private int co_RequiredDate; private int co_ShippedDate; private int co_ShipVia;...

Ngày tải lên: 24/12/2013, 05:15

... entities in dis- tinct domains). Domain-specific information sources, such as time tables and calendar entries, are integrated in this reasoning process. In this chapter, we use the term domain services ... engage in explanation dialogues, notably in the case of conflicting constraints. 3.1 Problem Assistance and Domain Reasoning The PA is a domain-independent processing module...

Ngày tải lên: 17/02/2014, 20:20

... of the main chain at Asp266 was bound to amino groups of main chain of Tyr269 and Ala270 by hydrogen bonds. The interactions should maintain the structure of the C-terminal region. In the wild-type ... the corresponding positions of amino acid sequence alignment of alkaline subtilisin Sendai. We observed that the two mutations in the C-terminal region were most effective for improving st...

Ngày tải lên: 21/02/2014, 03:20

... Science in Informal Environments: People, Places, and Pursuits http://www.nap.edu/catalog/12190.html 2 Learning Science in Informal Environments that inform learning science in informal environments. ... which individuals become comfortable with, knowledgeable about, or interested in science. Informal learning environments can play a special role in stimulating and building...

Ngày tải lên: 23/03/2014, 01:20

... return loss performance that results from the angled polish. A tuning process improves insertion loss by improving the alignment of the fiber cores in mated pairs. The accuracy of the tuning process ... portion of an FTTP network. Improving endface geometry in APC connectors provides more consistent core-to-core contact under all operating conditions, including temperature swings, a...

Ngày tải lên: 10/12/2013, 20:15

... Perl interpreter is the brain of the mod_perl server. If you can optimize Perl into doing things faster under mod_perl, you’ll make the whole server faster. Generally, optimizing the Perl interpreter ... calls to gettimeofday(2) (or times(2), depending on your operating system). This is done so that the status report contains timing information. For highest performance, set ExtendedStatus Of...

Ngày tải lên: 26/01/2014, 07:20

... parsers using realistic, complex unification-based gram- mars: in particular, with grammars admitting less ambiguity parse time will tend to increase more slowly with increasing input length, ... incorporate subtree sharing (in which identical sub-analyses are shared between differing super- ordinate analyses) and node packing (where sub- analyses covering the same portion of input...

Ngày tải lên: 20/02/2014, 21:20

... Subjects and Setting Data were included from individuals participating in a prospective study of 2,126 Medicare recipients, 65 years and older, residing in a single community in Northern Man- hattan. ... evaluations at regular intervals. The cohort was followed over a 7-year period beginning in 1992. Three follow-up examinations took place at 20-month in- tervals after the baseline...

Ngày tải lên: 05/03/2014, 21:20

... 5000 Equity Index Worldscope Table 1. Indices in SRI fund performance studie s Major sustainability indices Dow Jones Sustainability Index STOXX FTSE4Good Global Dow Jones Sustainability Index World Ethical ... international differences in business ethics. Journal of Business Ethics 75: 273–284. **Schröder M. 2004. The performance of socially responsible investments: investment funds...

Ngày tải lên: 07/03/2014, 16:20