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Data Mining: Classification and analysis


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Data Mining: Classification and analysis

Data Mining: Classification and analysis

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  • 1. Data Mining :Classification and Analysis
  • 2. Classification in the process of Data Mining
    It is the process of finding a model (or function) that describes and distinguishes data classes or concepts, for the purpose of being able to use the model to predict the class of objects whose class label is unknown.
    There are 3 models in which classification can be represented
    IF-THEN rules, A decision tree, Neural network.
  • 3. Classificationof Data Mining Systems
    The kinds of databases mined
    The kinds of knowledge mined
    The kinds of techniques utilized
    The applications adapted
  • 4. What is Cluster Analysis?
    Clustering analyzes data objects without consulting a known class label. Clustering can also facilitate taxonomy formation.
  • 5. What is Outlier Mining ?
    A database may contain data objects that do not comply with the general behavior or model of the data. These data objects are outliers. The analysis of outlier data is referred to as outlier mining.
  • 6. What is Evolution Analysis?
    Data evolution analysis describes and models regularities or trends for objects whose behavior changes over time.
  • 7. What are Data Mining Task Primitives?
    A data mining task can be specified in the form of a data mining query, which is input to the data mining system. A data mining query is defined in terms of data mining task primitives.
  • 8. Integration schemes of Data Base and Data Warehouse systems
    No coupling: No coupling means that a DM system will not utilize any function of a DB or DW system
    Loose coupling: Loose coupling means that a DM system will use some facilities of a DB or DW system, fetching data from a data repository managed by these systems, performing data mining, and then storing the mining results either in a file or in a designated place in a database or data warehouse.
  • 9. Cont..
    Semi tight coupling: Semi tight coupling means that besides linking a DM system to a DB/DW system, efficient implementations of a few essential data mining primitives (identified by the analysis of frequently encountered data mining functions) can be provided in the DB/DW system.
    Tight coupling: Tight coupling means that a DM system is smoothly integrated into the DB/DW system.
  • 10. Some issues encountered in Data Mining
    Mining methodology and user interaction issues
    Mining different kinds of knowledge in databases
    Interactive mining of knowledge at multiple levels of abstraction
    Incorporation of background knowledge
    Data mining query languages and ad hoc data mining
    Presentation and visualization of data mining results
    Handling noisy or incomplete data
    Pattern evaluation—the interestingness problem
  • 11. The performance of data mining system
    Efficiency and scalability of data mining algorithms
    Parallel, distributed, and incremental mining algorithms
    Issues relating to the diversity of database types
    Handling of relational and complex types of data
    Mining information from heterogeneous databases and global information systems
  • 12. Visit more self help tutorials
    Pick a tutorial of your choice and browse through it at your own pace.
    The tutorials section is free, self-guiding and will not involve any additional support.
    Visit us at