Fix errors in HITS() (aimacode#440)

Chipe1 · norvig · commit 1d278f6f4165 · 2017-04-12T14:47:41.000-07:00
diff --git a/nlp.py b/nlp.py
@@ -385,11 +385,11 @@ def __init__(self, address, hub=0, authority=0, inlinks=None, outlinks=None):
 def HITS(query):
     """The HITS algorithm for computing hubs and authorities with respect to a query."""
     pages = expand_pages(relevant_pages(query))  # in order to 'map' faithfully to pseudocode we
-    for p in pages:                              # won't pass the list of pages as an argument
+    for p in pages.values():                              # won't pass the list of pages as an argument
         p.authority = 1
         p.hub = 1
     while True:  # repeat until... convergence
-        for p in pages:
+        for p in pages.values():
             p.authority = sum(x.hub for x in getInlinks(p))  # p.authority ← ∑i Inlinki(p).Hub
             p.hub = sum(x.authority for x in getOutlinks(p))  # p.hub ← ∑i Outlinki(p).Authority
         normalize(pages)
