Supporting End-User Access
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Transcript of Supporting End-User Access
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Supporting End-User Access
Chapter 15
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What is Business Intelligence?“Business intelligence is the process of
transforming data into information and through discovery transforming that information into knowledge.”
Gartner Group
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Business IntelligenceThe purpose of business intelligence
is to convert the volume of data into value for the end users.
DecisionKnowledgeInformation
Data
Value
Volume
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Multidimensional Query Techniques
What? Why?
Why?
Why? Slicing
Dicing
Drillingdown
ProductTime
Geography
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Multidimensional Query Techniques
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Categories of Business Intelligence Tools Reporting tools Query tools (data access) On-line analytical reporting (OLAP)
tools Analytical suites Data mining tools Analytical applications
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Evolution of Reporting
•Batch oriented•IS controlled•3GL-based•Not user-specific•Inflexible•IS intensive
•End user empowered•Reduced IS manageability•Expensive•Localized
•Easy to use•Manageable•Scalable•Accessible
Mainframe Client-Server
MultitierEnterprisereporting
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Oracle Discover 3.1User
EditionViewerEdition
End User LayerTransaction Database or Data Warehouse
AdministrationEdition
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Discoverer for the Web View workbooks using a Web
browser Business intelligence tool that
provides information anywhere and at any time
Cost-effective
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Online Analytical Processing (OLAP)
Product mgr.view
Financial mgr.view
Time
Prod
Market Sales
Ad hoc view
Regional mgr.view
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Advanced Analytical Tasks Comparative and relative analysis Exception and trend analysis Time series analysis Forecasting What-if analysis Modeling Simultaneous equations
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Analytical Suites Enterprise business intelligence (EBI) toolsets: - Web-enabled query, reporting, and analysis tool that runs on a robust application server - EBI toolset tightly integrates query, reporting, and analysis capabilities within a single tool - Shares a common look and feel Business portals: - EBI toolset with a Yahoo-like user interface - Flexible repository handles structured and unstructured data objects.
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Data Mining Tools Identify patterns and relationships in data
that are often useful for building models that aid decision making or predict behavior
Data mining uses technologies such as neural networks, rule induction, and clustering to discover relationships in data and make predictions that are hidden, not apparent, or too complex to be extracted using statistical techniques.
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Analytical Applications Packaged analytical application has a predefined: - Extraction feeds and transformation routines for a specific data source - Data model, application-specific report templates, and a custom end- user interface. Custom analytic applications are workbenches
that enable developers to quickly create analytic applications from coarse-grained components, including user interface widgets, data access and analysis components, and report layouts.
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Definition of Data Mining“ Data mining is the exploration and
analysis of large quantities of data in order to discover meaningful patterns, trends, relationships, and rules. ”
Data mining is also known as: Knowledge discovery Data surfing Data harvesting
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Use of Data Mining Customer profiling Market segmentation Buying pattern affinities Database marketing Credit scoring and risk analysis
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Functions of Data Mining Discovers facts and data relationships Finds patterns Determines rules Retains and reuse rules Presents information to users May take many hours Requires knowledgeable people to
analyze the results
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Comparing DSS and Data Mining Queries DSS queries: - Based on prior knowledge and assumptions - User-driven Data mining queries: - Require domain-specific knowledge to interpret data - User-guided
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Artificial Neural Networks Predictive model that learns Developed from understand of the
human brain Multiple regression and other
statistical techniques1
432
76 85
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Decision Trees Represent decisions Generate rules Classify
Annual salary100,000
Annualoutgoing
Annualcredit
>50,000
BadGood
<10,000
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Other Techniques Genetic algorithms based on evolution
theory Statistics such as averages and totals Nearest neighbor to find associations Rules induction applying IF-THEN logic Experiment with different techniques
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AssociatesWhich items are purchased in a
retail store at the same time?
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Sequential PatternsWhat is the likelihood that a
customer will buy a product next month, if he buys
a related item today?
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ClassificationsDetermine customers’ buying
patternsand then find other customers with similar attributes that may be
targeted for a marketing campaign.
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ModelingUse factors, such as location,
number of bedrooms, and square footage, to Determine the market value of a
property
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Oracle Data Mining Partners Angoss International, Ltd. DataMind Corp. Datasage, Inc. Information Discovery, Inc. SPSS Inc. SRA International, Inc. Thinking Machines Corp.
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SummaryThis lesson covered the following
topics: Describing the importance of
business intelligence Identifying where data mining might
be employed in a warehouse environment
Identifying data mining tools