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PYEVALB

https://travis-ci.org/flyaway1217/PYEVALB.svg?branch=master

EVEVALB is a python version of Evalb which is used to score the bracket tree banks.

Installation

pip install PYEVALB

Examples

Score two corpus

from PYEVALB import scorer

s = scorer.Scorer()
gold_path = 'gold_corpus.txt'
test_path = 'test_corpus.txt'
result_path = 'result.txt'

s.evalb(gold_path, test_path, result_path)

And the result would be:

 ID | length | state | recall | prec | matched_brackets | gold_brackets | test_brackets | cross_brackets | words | correct_tags | tag_accracy
---:|-------:|------:|-------:|-----:|-----------------:|--------------:|--------------:|---------------:|------:|-------------:|------------:
   0|      44|      0|    0.57|  0.61|                31|             54|             51|              16|     44|            43|         0.98
   1|      13|      0|    0.64|  0.60|                 9|             14|             15|               3|     13|            12|         0.92
   2|      29|      0|    0.97|  0.97|                29|             30|             30|               0|     29|            29|         1.00
   3|      20|      0|    0.80|  0.80|                20|             25|             25|               4|     20|            20|         1.00
   4|      19|      0|    0.91|  1.00|                21|             23|             21|               0|     19|            19|         1.00
   5|      71|      0|    0.67|  0.68|                52|             78|             77|              15|     71|            65|         0.92
   6|      16|      0|    0.61|  0.69|                11|             18|             16|               0|     16|            14|         0.88
   7|      27|      0|    0.92|  0.96|                24|             26|             25|               0|     27|            26|         0.96
   8|      19|      0|    1.00|  1.00|                20|             20|             20|               0|     19|            19|         1.00
   9|      41|      0|    0.80|  0.78|                32|             40|             41|               5|     41|            39|         0.95

=================================================================================================================================================
Number of sentence: 10.00
Number of Error sentence:   0.00
Number of Skip  sentence:   0.00
Number of Valid sentence:   10.00
Bracketing Recall:  75.91
Bracketing Precision:       77.57
Bracketing FMeasure:        76.73
Complete match:     10.00
Average crossing:   4.30
No crossing:        50.00
Tagging accuracy:   95.65

Score two trees

from PYEVALB import scorer
from PYEVALB import parser

gold = '(IP (NP (PN 这里)) (VP (ADVP (AD 便)) (VP (VV 产生) (IP (NP (QP (CD 一) (CLP (M 个))) (DNP (NP (JJ 结构性)) (DEG 的)) (NP (NN 盲点))) (PU :) (IP (VP (VV 臭味相投) (PU ,) (VV 物以类聚)))))) (PU 。))'

test = '(IP (IP (NP (PN 这里)) (VP (ADVP (AD 便)) (VP (VV 产生) (NP (QP (CD 一) (CLP (M 个))) (DNP (ADJP (JJ 结构性)) (DEG 的)) (NP (NN 盲点)))))) (PU :) (IP (NP (NN 臭味相投)) (PU ,) (VP (VV 物以类聚))) (PU 。))'

gold_tree = parser.create_from_bracket_string(gold)
test_tree = parser.create_from_bracket_string(test)

s = scorer.Scorer()
result = s.score_trees(gold_tree, test_tree)

print('Recall =' + str(result.recall))
print('Precision =' + str(result.prec))

And the result is:

Recall = 64.29
Precision =  56.25

TODO

  1. Remove the dependency of pytablewriter
  2. Add more configurations, such as limiting the length of sentence.
  3. Add docs

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EVEVALB is a python version of Evalb which is used to score the bracket tree banks.

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