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01-intro-notes

01-intro-notes - Introduction CPS 116 Introduction to...

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1 Introduction CPS 116 Introduction to Database Systems 2 A few words about myself (and databases) Have been doing (and enjoying) research in databases ever since grad school (1995) Didn’t take any database course as an undergrad ) Now, why would you want to take 116? ) It’s not really about databases per se—it’s about principles of data management E.g., Google probably won’t care if you know SQL, but… They still ask you “big data” questions in interviews Brin was a grad student in the Stanford Database Group Trend: Moore’s Law reversed Moore’s Law: Processing power doubles every 18 months Amount of data doubles every 9 months Disk sales (# of bits) doubles every 9 months Parkinson’s Law: Data expands to fill the space available for storage As of 2009, Facebook ingests 15 terabytes of data per day and maintains a 2.5-petabyte data warehouse CERN’s Large Hadron Collider will produce 15 petabytes per year ) Moore’s Law reversed: Time to process all data doubles every 18 months! Does your attention span double every 18 months? No, so we need smarter data management techniques 3
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2 4 Misc. course information Course website: http://www.cs.duke.edu/courses/fall11/cps116/ Course information; tentative syllabus and reference sections in the book; lecture slides, assignments, programming notes Book: Database Systems: The Complete Book , by H. Garcia- Molina, J. D. Ullman, and J. Widom. 2 nd Ed. Gradiance: see course website for sign-up information Blackboard: for grades only Mailing list: [email protected] Messages of general interest only No “official” recitation sessions; help sessions for assignments, project, and exams to be scheduled TA: Rohit Paravastu 5 Grading [90%, 100%] A- / A / A+ [80%, 90%) B- / B / B+ [70%, 80%) C- / C / C+ [60%, 70%) D [0%, 60%) F No curves Scale may be adjusted downwards (i.e., grades upwards) if, for example, an exam is too difficult Scale will not go upwards—mistake would be mine alone if I made an exam too easy 6 Course load Four homework assignments (35%) Including Gradiance as well as additional written and programming problems Course project (25%) Details to be given in the third week of class Midterm and final (20% each) Open book, open notes Final is comprehensive, but emphasizes the second half of the course
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3 7 Example past projects ePrint iPhone app Ben Getson and Lucas Best, 2009 Making iTunes social Nick Patrick, 2006; Peter Williams and Nikhil Arun, 2009 Duke Schedulator: ditch ACES—plan your schedule visually!
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