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intersection query for relevant_pages and corresp test by bionascu · Pull Request #402 · aimacode/aima-python · GitHub

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intersection query for relevant_pages and corresp test #402

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intersection query for relevant_pages and corresp test #402

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19 changes: 11 additions & 8 deletions nlp.py
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Original file line number Diff line number Diff line change
Expand Up @@ -293,14 +293,17 @@ def expand_pages( pages ):
return expanded

def relevant_pages(query):
"""Relevant pages are pages that contain the query in its entireity.
If a page's content contains the query it is returned by the function."""
relevant = {}
print("pagesContent in function: ", pagesContent)
for addr, page in pagesIndex.items():
if query.lower() in pagesContent[addr].lower():
relevant[addr] = page
return relevant
"""Relevant pages are pages that contain all of the query words. They are obtained by
intersecting the hit lists of the query words."""
intersection = set()
query_words = query.split()
for query_word in query_words:
hit_list = set()
for addr in pagesIndex:
if query_word.lower() in pagesContent[addr].lower():
hit_list.add(addr)
intersection = hit_list if not intersection else intersection.intersection(hit_list)

Chipe1 Apr 18, 2017

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

This would lead to problems when the intersection is an empty set. When the set becomes empty it is replaced by hit_list instead of staying empty. I've fixed this and the merge conflict in #509 .
return {addr: pagesIndex[addr] for addr in intersection}

def normalize( pages ):
"""From the pseudocode: Normalize divides each page's score by the sum of
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10 changes: 7 additions & 3 deletions tests/test_nlp.py
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ def test_lexicon():
href="https://google.com.au"
< href="/wiki/TestThing" > href="/wiki/TestBoy"
href="/wiki/TestLiving" href="/wiki/TestMan" >"""
testHTML2 = "Nothing"
testHTML2 = "a mom and a dad"

pA = Page("A", 1, 6, ["B", "C", "E"], ["D"])
pB = Page("B", 2, 5, ["E"], ["A", "C", "D"])
Expand Down Expand Up @@ -87,9 +87,13 @@ def test_expand_pages():


def test_relevant_pages():
pages = relevant_pages("male")
assert all((x in pages.keys()) for x in ['A', 'C', 'E'])
pages = relevant_pages("his dad")
assert all((x in pages) for x in ['A', 'C', 'E'])
assert all((x not in pages) for x in ['B', 'D', 'F'])
pages = relevant_pages("mom and dad")
assert all((x in pages) for x in ['A', 'B', 'C', 'D', 'E', 'F'])
pages = relevant_pages("philosophy")
assert all((x not in pages) for x in ['A', 'B', 'C', 'D', 'E', 'F'])


def test_normalize():
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