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Augmentation weights

  • Ensure that Structured Document Retrieval Principle is respected.

  • Assume different query conditions are disjoint events -> independence.

  • P(chapter,XQL)=P(XQL|chapter)+P(section|chapter)*P(XQL|section) – P(XQL|chapter)*P(section|chapter)*P(XQL|section) = 0.3+0.6*0.8-0.3*0.6*0.8 = 0.636

  • Section ranked ahead of chapter

Speaker notes:

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