KING

goal part2

• Supply and demand(15%–20%)
  • 1.Market equilibrium
  • 2.Determinants of supply and demand
  • 3.Price and quantity controls
  • 4.Elasticity
    • a.Price, income and cross-price elasticities of demand
    • b.Price elasticity of supply
  • 5.Consumer surplus, producer surplus and market efficiency
  • 6.Tax incidence and deadweight loss

useful resource

• http://www.apstudynotes.org/microeconomics/outlines/chapter-3-economic-systems/
• http://wenku.baidu.com/view/beadef03de80d4d8d15a4ffb.html

goal part1

• Basic Economic Concepts (8%–14%)
  • A.Scarcity,choice and opportunity costs
  • B.Production possibilities curve
  • C.Comparative advantage, specialisation and trade
  • D.Economic systems
  • E.Property rights and the role of incentives
  • F.Marginal analysis

filter

• There is a faceted Search, which is to preview the result of the query in many category.
  • like if we search for ‘apple’
    • the result may be classified into two
      • one is apple fruit
      • one is apple company
• actually, this is a filter.
  • we can classify before index, and store into index
  • and use value to filter them when query

public speech technic note

audience

• focus on a single person
  • reduce pressure
• audience is very important
• help emotionally connect to audience
• help you visualise one single person to talk to

The expand of synonym(同义词)

• such as ‘I love you‘ and ‘ILU’
• process to do this
  • Write the synonym into database
    • use WriteDatabase::add_synonym(term,synonym)
    • but we can only do ‘I love you’ –> ‘ILU’
      • if we want to reverse it, we need to add the reverse version

use the synonym when query

• use QueryParser::set_database() to set db
• when using the QueryParser::set_database(), the second parameter use FLAG_SYNONYM or FLAG_AUTO_SYNONYMS
• FLAG_SYNONYM is the ~WORD format in the query sentence. expend the synonym of the word automatically
• FLAG_AUTO_SYNONYMS is expend all the phrase, do not need to write ~

• note:some of the content and code are refer from http://www.coder4.com/archives/2218

basic index build and search

• first of all, xapian is an open source c++ search engine.
• also note that xapian is called “Zap-in”