27 - UNRELIABLE DATA
29 - YOU GET WHAT YOU MEASURE
30 - YOU AND YOUR RESEARCH
BY
HAMMING
Mustafa İlker Saraç, Hakan Sözer,...
Chapter 27 – Unreliable Data
•  Is your data as accurate as advertised?
•  How do you propose to test a device;
•  less re...
Chapter 27 – Unreliable Data
•  Why I should believe the data was consistent?
•  Hamming’s rule:
•  90% of the time the ne...
Chapter 29 – You Get What You Measure
•  Choose your measurement tools carefully
•  The way you choose to measure things c...
Chapter 29 – You Get What You Measure
•  In organizations each person is bending things so they
themselves will look good!...
Chapter 30 – You and Your Research
•  It seems to me it is better to do significant things than to
just get along through ...
Chapter 30 – You and Your Research
•  LUCK FAVORS THE PREPARED MIND!
•  Great people when young were generally active.
•  ...
Chapter 30 – You and Your Research
•  Confidence in yourself, then, is an essential property.
•  The courage to continue i...
Chapter 30 – You and Your Research
•  Great people tolerate ambiguity,
•  they can both believe and disbelieve at the same...
Thanks for your patience
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Hamming presentation 27 29-30

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I have presented this for CS533 Information Retrieval course.

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Hamming presentation 27 29-30

  1. 1. 27 - UNRELIABLE DATA 29 - YOU GET WHAT YOU MEASURE 30 - YOU AND YOUR RESEARCH BY HAMMING Mustafa İlker Saraç, Hakan Sözer, Muhammed Yağmur Şahin, Çağlar Terzi, Arif Usta 11.04.2013 1 / 10
  2. 2. Chapter 27 – Unreliable Data •  Is your data as accurate as advertised? •  How do you propose to test a device; •  less reliable test equipment •  very limited time to test •  device is to have a very long lifetime in the field 2 / 10
  3. 3. Chapter 27 – Unreliable Data •  Why I should believe the data was consistent? •  Hamming’s rule: •  90% of the time the next independent measurement will fall outside the previous 90% confidence limits! •  Averages are meaningful for homogenous groups but for diverse groups are often meaningless. 3 / 10
  4. 4. Chapter 29 – You Get What You Measure •  Choose your measurement tools carefully •  The way you choose to measure things controls to a large extent what happens. •  In organizations diversity matters however mostly the recruiters chooses the persons like themselves. •  In army we train people in war games to use an idealized fleet and not the real one! It is same in business games. 4 / 10
  5. 5. Chapter 29 – You Get What You Measure •  In organizations each person is bending things so they themselves will look good! •  If the whole organization is working together to fool the top, there is little the top can do about it.! •  In computing, the programming effort is often measured by the number of lines of code, what!? •  You get what you measure 5 / 10
  6. 6. Chapter 30 – You and Your Research •  It seems to me it is better to do significant things than to just get along through life to its end. 6 / 10 Message 1 it is worth trying to accomplish the goals you set for yourself Message 2 it is worth setting yourself high goals.
  7. 7. Chapter 30 – You and Your Research •  LUCK FAVORS THE PREPARED MIND! •  Great people when young were generally active. •  If you do not work on important problems how can you expect to do important work? 7 / 10
  8. 8. Chapter 30 – You and Your Research •  Confidence in yourself, then, is an essential property. •  The courage to continue is essential. •  Intellectual investment is like compound interest, •  the more you do the more you learn how to do, so •  the more you can do. 8 / 10
  9. 9. Chapter 30 – You and Your Research •  Great people tolerate ambiguity, •  they can both believe and disbelieve at the same time. •  You should do your job in such a fashion others can build top of it. •  Adopt •  Adapt •  Extend •  Elaborate •  But is it worth for all that effort? •  Socrates; 'The unexamined life is not worth living.' 9 / 10
  10. 10. Thanks for your patience 10 / 10

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