Typical
use of BI :
In Identifying changes
in purchasing patterns
– Important life events change what
customers buy.
In
Entertainment
– Netflix has data on watching,
listening, and rental habits.
– Classify customers by viewing
patterns.
In Predictive policing
– Analyze data on past crimes -
location, date, time, day of week, type of crime, and related data.
Ethic
Guide : Unseen Cyberazzi
Data broker or Data aggregator
– Acquires and purchases consumer and
other data from public records, retailers, Internet cookie vendors, social
media trackers, and other sources.
– Data for business intelligence to
sell to companies and governments.
Cheap cloud processing of
consumer data easier, less expensive.
Processing
happens in secret.
Data
brokers enable you to view data stored about you, but ...
– Difficult to learn how to request
your data,
– Torturous process to file for it,
– Limited data usefulness.
Functions of a data warehouse
– Obtain data from operational,
internal and external databases.
– Cleanse data.
– Organize and relate data.
–
Catalog data using metadata.
Catalog data using metadata.
Reporting Application
The purpose of reporting
application is to create meaningful information from disparate data sources and
deliver information to user on time.
Basic operations:
- Sorting
- Filtering
- Grouping
- Calculating
- Formatting
RFM Analysis :
-Recently
-Frequently
-Money
Unsupervised data mining
• No a priori hypothesis or model.
• Findings obtained solely by data
analysis.
• Hypothesized model created to
explain patterns found.
Supervised data mining
• Uses a priori model.
• Prediction, such as regression
analysis.
Market-Basket Analysis
– Identify sales patterns in large
volumes of data.
– Identify what products customers tend to buy together.
– Computes probabilities of
purchases.
– Identify cross-selling
opportunities.
Decision Tress
• Unsupervised data mining technique.
• Hierarchical arrangement of
criteria to predict a value or classification.
• Select attributes most useful for
classifying “pure groups.”
BI for security trading
• Quantitative applications using
BigData and BI.
– Analyze immense amounts of data
over a broad spectrum of sources.
– Build and evaluate investment
strategies.
Knowledge
Management (KM)
Creating value from
intellectual capital and sharing knowledge with those who need that capital.
• Preserving organizational memory
Capturing and storing lessons
learned and best practices of key employees.
• Scope of KM same as SM in
hyper-social organizations.
Benefit of Knowledge Management
1.
Improve process quality.
2.
Increase team strength.
3.
Enable users to use organization’s collective
knowledge.
Drawback of Expert System
- Difficult
and expensive to develop.
– Labor intensive.
– Ties up domain experts.
- Difficult
to maintain.
– Changes cause unpredictable
outcomes.
– Constantly need expensive changes.
- Don’t
live up to expectations.
– Can’t duplicate diagnostic
abilities of humans.
Content Management Systems (CMS)
Manage
and delivery of documents, and other employees/users knowledge.
Challenge of CMS :
- Huge Databases.
- Huge Databases.
- Dynamic Content.
Alternative of CMS
• In-house custom development
– Customer support develops in-house
database applications to track customer problems.
• Off-the-shelf
– Horizontal market products
(SharePoint).
– Vertical market applications.
• Public search engine
– Google, Bing.
Hyper-social
knowledge management
– Social media, and related
applications, for management and delivery of organizational knowledge
resources.
Hyper-organization
theory
– Framework for understanding KM.
– Focus shifts from knowledge and
content to fostering authentic relationships among knowledge creators and
users.
Guide:
Semantic
Security
- Unauthorized access to protected data and
information.
- Physical security
Ø Passwords and permissions.
Ø Delivery system must be secure.
- Unintended release of protected information
through reports and documents.
Data
Mining In Real World
Problems:
– Dirty data
– Missing values
– Lack of knowledge at start of
project
– Over fitting
– Probabilistic
– Seasonality
– High risk with unpredictable
outcome
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