Fixed bug with LexRank's power iteration #194
Merged
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The
power_method
insummarizers/lex_rank.py
was not correct. Thelambda_val
was increasing for this test and hence resulted ininf
andnan
values reported in #187 (also a warning would be raised when running that test).The problem was that the
next_p
vector should have been normalized after the matrix multiplication according to the Wikipedia entry, which it was not.