business intelligence systems


  • what are typical uses for BI 
    • identify changes in purchasing patterns 
      • important life events cause customers to change what they buy 
    • BI for entertainment 
      • netflix has data on watching, listening, and rental habits, however, determines what people actually want, not what they say 
      • predictive policing 
        • analyze data on past crimes, including location, date, time, day of week, type of crime, and related data, to predict where crimes are likely to occur \
  • how do organizations uses data warehouses and data marts 
  • possible problems with source data 
    • dirty data 
    • missing values 
    • inconsistent data 
    • data not integrated 
  • big data 
    • volume 
    • velocity 
  • hadoop 
    • open- source program supported by apache foundation 2 
  • unsopervised vs supervised data mining 
    • unsupervised 
      • analysts do not create a model or hypothesis before runing an analysis 
        • cluster analysis 
      • supervised 
        • develop a model prior to analysis and apply statistical techniques to data to estimate model parameters 
      • regression analysis
        • cell phone weeken minutes 
  • alternatives for publishing BI 
    • email or colaboration tool 
    • web server 
    • sharepoint 
  • two functions of a BI server 
    • push and pull strategies  

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