Data Mining Chapter 1
Data Mining Tasks Prediction Methods Examples:
- Classification - Regression - Deviation Detection
Data Mining Tasks Description Methods Examples:
- Clustering - Association Rule discovery - Sequential Pattern Discovery
What is not Datamining
look up a phone number in a phone directory - Query a web search engine for info about Amazon.
Data Mining def:
the extraction of implicit, perviously unknown and potentially useful information from data.
What IS Datamining
Certain names are more prevalent in certain US locations. Group together similar documents returned by seach engine acording to their context. ex: - Amazon rainforest - Amazon.com
Orgins of Data Mining
Draws ideas from: machine learning AI pattern recognition statistics database systems
Traditional techniques may be unsuitable due to...
Enormity of Data High dimensionality Heterogeneus distributied nature of data
What is DataMining
Exploatation & analisys, by automatic or semi-automatic means, of large quantities of data in order to discover meaningful patterns.
Data Mining Tasks Description Methods:
Find human interpretable-patterns that describe the data.
Data Mining Tasks Prediction Methods:
Uses some variables to predict unknown or future values of other variables.
