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A search engine returns irrelevant results for a query. What is the most likely cause?

medium📝 Analysis Q7 of Q15
Intro to Computing - How the Internet Works
A search engine returns irrelevant results for a query. What is the most likely cause?
ACrawler is not updating the index
BRanking algorithm is not considering keyword relevance
CQuery processor is ignoring user input
DIndex size is too large
Step-by-Step Solution
Solution:

  1. Step 1: Analyze why results may be irrelevant

    If ranking ignores keyword relevance, results won't match user intent well.

  2. Step 2: Compare other options to relevance issue

    Crawler and index size affect coverage, query processor ignoring input is unlikely; ranking is key for relevance.

  3. Final Answer:

    Ranking algorithm is not considering keyword relevance -> Option B

  4. Quick Check:

    Irrelevant results = poor ranking relevance [OK]
Quick Trick: Ranking decides result relevance [OK]
Common Mistakes:
MISTAKES
  • Blaming crawler for relevance
  • Ignoring ranking's role
  • Confusing query processor with ranking

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