1. Data Organization Data files Databases Data streams Data files Databases Data streams

2. The organization of data  Data/information must be organized  Computer/network accessible  Stored or streaming  Data/information must be organized  Computer/network accessible  Stored or streaming

3. Stored information  Spreadsheet  Worksheet oriented  Cells, columns, rows  Can be set up to look like a table  Database  Table oriented  Column headings describe a row  Rows are records  Tables can be related (relational database)  Spreadsheet  Worksheet oriented  Cells, columns, rows  Can be set up to look like a table  Database  Table oriented  Column headings describe a row  Rows are records  Tables can be related (relational database)

4. Spreadsheets in Excel  Limited in size to 64K rows, 256 columns  Slow to compute changes  Accessed via GUI or Visual Basic  Can be exported to relational database table  Limited in size to 64K rows, 256 columns  Slow to compute changes  Accessed via GUI or Visual Basic  Can be exported to relational database table

5. Excel Worksheet

6. Relational Databases  Licensed Databases  MS Access, MS Sequel Server, Oracle  Free databases  MySQL, PostgresSQL, MaxDB, Firebird, Ingres (http://www.geocities.com/mailsoftware42/db/)  Interfaces: GUI, SQL, Programming languages (Java, Perl, PHP, C++, VB)  Licensed Databases  MS Access, MS Sequel Server, Oracle  Free databases  MySQL, PostgresSQL, MaxDB, Firebird, Ingres (http://www.geocities.com/mailsoftware42/db/)  Interfaces: GUI, SQL, Programming languages (Java, Perl, PHP, C++, VB)

7. Relational Table

8. Relational Table Elements

9. Relating Tables

12. One to One Relationship

13. One to Many Relationship

14. Many to Many Relationship

15. Data Streams  Not stored in a file  Serial data  Real-time  Underlying model to discover changes over time  Drift in the data mining/analysis tools needed  Incremental adaptation of the learning algorithm  2006 inaugural conference  http://www.lsi.us.es/~aguilar/ds/  Not stored in a file  Serial data  Real-time  Underlying model to discover changes over time  Drift in the data mining/analysis tools needed  Incremental adaptation of the learning algorithm  2006 inaugural conference  http://www.lsi.us.es/~aguilar/ds/

16. Data Stream Examples  Network Packets  AP news wire  Live audio / video  Control system data  Customer click streams  Telephone records  Large sets of web pages  Retail transactions  Network Packets  AP news wire  Live audio / video  Control system data  Customer click streams  Telephone records  Large sets of web pages  Retail transactions

17. Summary  Data is stored or streaming  Data is organized  Data is accessible programmatically  Need to know  How data is organized  How to access the data  How to apply DI tools to the data  Data is stored or streaming  Data is organized  Data is accessible programmatically  Need to know  How data is organized  How to access the data  How to apply DI tools to the data