Discussion Class 6

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Discussion Class 6

• Lucene

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Course Administration
Midterm Examination on October 12 Wednesday,
October 12, 730 to 900, Upson B17 Discussion
Class on October 19 This class will be held in
Philips Hall 213
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Discussion Classes
Format Question Ask a member of the class to
answer. Provide opportunity for others to
comment. When answering Stand up. Give your
name. Make sure that the TA hears it. Speak
clearly so that all the class can
hear. Suggestions Do not be shy at presenting
partial answers. Differing viewpoints are
welcome.
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Question 1

• How did you go about looking for information
  about Lucene? Did you search or browse? What
  information sources did you find most useful? Is
  there some information that you were unable to
  find?
• (b) Who created Lucene? What is the business
  model?

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Question 2

• (a) What are the underlying search mechanisms
  supported by Lucene?
• (b) What algorithms does it use?
• What data structures does it use?
• (i) To store and index fielded data
• (ii) To maintain term weights

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Question 3

• (a) How do you load free text into Lucene?
• (b) How do you load fielded text?
• (c) What format options are there?
• (d) How does it handle various character sets,
  stoplists, stemming, etc.?

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Question 4

• Suppose that you are unhappy with the ranking of
  results provided by Lucene. What can you do
  about it?
• If you wanted to modify Lucene to support a novel
  search algorithm, how would you go about it?

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Question 5
How do you incorporate Lucene queries and results
into your own user interface?