class_docstr: An implementation of TextRank algorithm for summarization.
  
  Source: https://web.eecs.umich.edu/~mihalcea/papers/mihalcea.emnlp04.pdf
class_docstr_tok: ["An","implementation","of","TextRank","algorithm","for","summarization",".","Source",":","https",":","\/\/web.eecs.umich.edu\/~mihalcea\/papers\/mihalcea.emnlp04.pdf"]
code: def rate_sentences(self, document):
      matrix = self._create_matrix(document)
      ranks = self.power_method(matrix, self.epsilon)
      return {
          sent: rank for sent, rank in zip(document.sentences, ranks)
      }
  
file_path: sumy/sumy/summarizers/text_rank.py
imports: from __future__ import absolute_import
  from __future__ import division, print_function, unicode_literals
  import math
  from ._summarizer import AbstractSummarizer
label_desc: Use image node_id 5 for calling the TextRankSummarizer obj's underlying member method code with example usage: obj.rate_sentences(document) and returns: unknown