《R语言在数据挖掘中的应用》由会员分享，可在线阅读，更多相关《R语言在数据挖掘中的应用（26页珍藏版）》请在金锄头文库上搜索。
1、Data Mining with R/ORE,2,iTech Solution Profile Agenda,R/ORE Overview,1,XML output generation using SQL,4,Integration with IBP and BIEE,3,2,5,R vs. SPSS,6,FAQ,Oracle R for Hadoop Connector,Why analysts use R,R is a statistics language similar to Base SAS or SPSS statistics. R environment is Powerful
2、 Extensible Graphical Extensive statistics OOTB functionality with many knobs but smart defaults Ease of installation and use Free,Limitations of R,R is a client and server bundled together as 1 executable - like Excel Single user tool Not multi-threaded Cannot leverage CPU capacity even on a users
3、laptop/desktop R requires data it operates on to be first loaded into memory Loading data may not be a limitation given RAM available on laptops/desktops Rs call by value semantics means as data flows into functions, for each function invocation, many copies of the data are made As a result you quic
4、kly run into memory limits,Why should you be interested in R?,Emerging trends Its the next “big thing” in advanced analytics Colleges and universities use R for statistics classes (replacing more traditional software tools) Advanced Analytics as a critical differentiator of the DWH technology stack
5、Augment Oracle deployments Enhance results with powerful graphics Integrate R results and graphics with BI Publisher documents and OBIEE dashboards A scalable R via Oracle R Enterprise Leverage Oracle-engineered solutions A viable alternative to SAS/SPSS,Rexer Analytics Survey 2011,Default R GUI,RSt
6、udio Third Party, Open Source IDE,Oracle R Enterprise,Function push-down data transformation & statistics,R workspace console,Oracle statistics engine,OBIEE, Web Services,Development,Production,Consumption,Oracle R Enterprise,Function push-down data transformation & statistics,R workspace console,Or
7、acle statistics engine,OBIEE, Web Services,2012 Oracle All Rights Reserved,Substantial leap forward from incumbent platforms Data volume using SQL and existing DB functionality Data Heterogeneity Oracle DB + BDA Breadth of Analytics Oracle DB + R packages Breadth of User Types R+SQL+BI report develo
8、pers, DBAs,Enables enterprise-wide consumption of advanced analytics models via integration with Oracle Exalytics,Most integrated and complete suite of Enterprise Advanced Analytics software available in the market today,Oracle R Enterprise Key messages,12,iTech Solution Profile Agenda,R/ORE Overvie
9、w,1,4,Integration with IBP and BIEE,3,2,5,R vs. SPSS,6,FAQ,Oracle R for Hadoop Connector,XML output generation using SQL,13,iTech Solution Profile Agenda,R/ORE Overview,1,4,Integration with IBP and BIEE,3,2,5,R vs. SPSS,6,FAQ,Oracle R for Hadoop Connector,XML output generation using SQL,14,iTech Sol
10、ution Profile Agenda,R/ORE Overview,1,4,Integration with IBP and BIEE,3,2,5,R vs. SPSS,6,FAQ,Oracle R for Hadoop Connector,XML output generation using SQL,15,iTech Solution Profile Agenda,R/ORE Overview,1,4,Integration with IBP and BIEE,3,2,5,R vs. SPSS,6,FAQ,Oracle R for Hadoop Connector,XML output
11、 generation using SQL,R vs SPSS-data loading,R vs SPSS-processing,R vs SPSS-modeling,R vs SPSS-results,R Visualization,R Visualization-continue,Frequently Asked Questions(FAQ),What version(s) of R do we support? R-2.13.2, however versions R = 2.12.0 will likely work What does CRAN stand for? Compreh
12、ensive R Archive Network Is there a workflow GUI for R? Red-R, see http:/www.red-r.org/ What other GUI front ends are there for R? Are there R interfaces for ROLAP/MOLAP in Oracle? Not yet Is there an R connector for NoSQL? Not yet,http:/ we use CRAN open source packages in ORE and get the same bene
13、fits, e.g., performance, scalability? There are benefits, but not the same as from the ORE Transparency Layer Users can leverage data parallelism through embedded R execution What resources are available for learning R / ORE in Oracle? See With ORE, is Oracle ANSI SQL enhanced to understand R? Usin
14、g the extensibility framework, SQL table functions exist that can execute R scripts. The SQL syntax itself has not been extended.,FAQ-continue,How does ORE help Exalytics? Is there integration between the two? OBIEE dashboards and BIP documents can execute R scripts to generate data and/or graph to be displayed. ORE scripts can generate table data for use in an RPD, and hence through Answers Where do you get the RStudio? http:/rstudio.org,Copyright 2008, Oracle and/or its affiliates. All rights reserved.,25,Q & A,Thanks!,
