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kongdeqiang

8 天以前 28ccfbfc51068a663a80764e14074df5edf2b5ba

 runtime/python/utils/compute_wer.py

@@ -2,66 +2,94 @@
import numpy as np
import sys

def compute_wer(ref_file,
                hyp_file,
                cer_detail_file):

def compute_wer(ref_file, hyp_file, cer_detail_file):
    rst = {
        'Wrd': 0,
        'Corr': 0,
        'Ins': 0,
        'Del': 0,
        'Sub': 0,
        'Snt': 0,
        'Err': 0.0,
        'S.Err': 0.0,
        'wrong_words': 0,
        'wrong_sentences': 0
        "Wrd": 0,
        "Corr": 0,
        "Ins": 0,
        "Del": 0,
        "Sub": 0,
        "Snt": 0,
        "Err": 0.0,
        "S.Err": 0.0,
        "wrong_words": 0,
        "wrong_sentences": 0,
    }

    hyp_dict = {}
    ref_dict = {}
    with open(hyp_file, 'r') as hyp_reader:
    with open(hyp_file, "r") as hyp_reader:
        for line in hyp_reader:
            key = line.strip().split()[0]
            value = line.strip().split()[1:]
            hyp_dict[key] = value
    with open(ref_file, 'r') as ref_reader:
    with open(ref_file, "r") as ref_reader:
        for line in ref_reader:
            key = line.strip().split()[0]
            value = line.strip().split()[1:]
            ref_dict[key] = value

    cer_detail_writer = open(cer_detail_file, 'w')
    cer_detail_writer = open(cer_detail_file, "w")
    for hyp_key in hyp_dict:
        if hyp_key in ref_dict:
           out_item = compute_wer_by_line(hyp_dict[hyp_key], ref_dict[hyp_key])
           rst['Wrd'] += out_item['nwords']
           rst['Corr'] += out_item['cor']
           rst['wrong_words'] += out_item['wrong']
           rst['Ins'] += out_item['ins']
           rst['Del'] += out_item['del']
           rst['Sub'] += out_item['sub']
           rst['Snt'] += 1
           if out_item['wrong'] > 0:
               rst['wrong_sentences'] += 1
           cer_detail_writer.write(hyp_key + print_cer_detail(out_item) + '\n')
           cer_detail_writer.write("ref:" + '\t' + "".join(ref_dict[hyp_key]) + '\n')
           cer_detail_writer.write("hyp:" + '\t' + "".join(hyp_dict[hyp_key]) + '\n')
            out_item = compute_wer_by_line(hyp_dict[hyp_key], ref_dict[hyp_key])
            rst["Wrd"] += out_item["nwords"]
            rst["Corr"] += out_item["cor"]
            rst["wrong_words"] += out_item["wrong"]
            rst["Ins"] += out_item["ins"]
            rst["Del"] += out_item["del"]
            rst["Sub"] += out_item["sub"]
            rst["Snt"] += 1
            if out_item["wrong"] > 0:
                rst["wrong_sentences"] += 1
            cer_detail_writer.write(hyp_key + print_cer_detail(out_item) + "\n")
            cer_detail_writer.write("ref:" + "\t" + "".join(ref_dict[hyp_key]) + "\n")
            cer_detail_writer.write("hyp:" + "\t" + "".join(hyp_dict[hyp_key]) + "\n")

    if rst['Wrd'] > 0:
        rst['Err'] = round(rst['wrong_words'] * 100 / rst['Wrd'], 2)
    if rst['Snt'] > 0:
        rst['S.Err'] = round(rst['wrong_sentences'] * 100 / rst['Snt'], 2)
    if rst["Wrd"] > 0:
        rst["Err"] = round(rst["wrong_words"] * 100 / rst["Wrd"], 2)
    if rst["Snt"] > 0:
        rst["S.Err"] = round(rst["wrong_sentences"] * 100 / rst["Snt"], 2)

    cer_detail_writer.write('\n')
    cer_detail_writer.write("%WER " + str(rst['Err']) + " [ " + str(rst['wrong_words'])+ " / " + str(rst['Wrd']) +
                            ", " + str(rst['Ins']) + " ins, " + str(rst['Del']) + " del, " + str(rst['Sub']) + " sub ]" + '\n')
    cer_detail_writer.write("%SER " + str(rst['S.Err']) + " [ " + str(rst['wrong_sentences']) + " / " + str(rst['Snt']) + " ]" + '\n')
    cer_detail_writer.write("Scored " + str(len(hyp_dict)) + " sentences, " + str(len(hyp_dict) - rst['Snt']) + " not present in hyp." + '\n')
    cer_detail_writer.write("\n")
    cer_detail_writer.write(
        "%WER "
        + str(rst["Err"])
        + " [ "
        + str(rst["wrong_words"])
        + " / "
        + str(rst["Wrd"])
        + ", "
        + str(rst["Ins"])
        + " ins, "
        + str(rst["Del"])
        + " del, "
        + str(rst["Sub"])
        + " sub ]"
        + "\n"
    )
    cer_detail_writer.write(
        "%SER "
        + str(rst["S.Err"])
        + " [ "
        + str(rst["wrong_sentences"])
        + " / "
        + str(rst["Snt"])
        + " ]"
        + "\n"
    )
    cer_detail_writer.write(
        "Scored "
        + str(len(hyp_dict))
        + " sentences, "
        + str(len(hyp_dict) - rst["Snt"])
        + " not present in hyp."
        + "\n"
    )

     
def compute_wer_by_line(hyp,
                        ref):

def compute_wer_by_line(hyp, ref):
    hyp = list(map(lambda x: x.lower(), hyp))
    ref = list(map(lambda x: x.lower(), ref))

@@ -96,14 +124,7 @@
    match_idx = []
    i = len_hyp
    j = len_ref
    rst = {
        'nwords': len_ref,
        'cor': 0,
        'wrong': 0,
        'ins': 0,
        'del': 0,
        'sub': 0
    }
    rst = {"nwords": len_ref, "cor": 0, "wrong": 0, "ins": 0, "del": 0, "sub": 0}
    while i >= 0 or j >= 0:
        i_idx = max(0, i)
        j_idx = max(0, j)
@@ -111,42 +132,57 @@
        if ops_matrix[i_idx][j_idx] == 0:  # correct
            if i - 1 >= 0 and j - 1 >= 0:
                match_idx.append((j - 1, i - 1))
                rst['cor'] += 1
                rst["cor"] += 1

            i -= 1
            j -= 1

        elif ops_matrix[i_idx][j_idx] == 2:  # insert
            i -= 1
            rst['ins'] += 1
            rst["ins"] += 1

        elif ops_matrix[i_idx][j_idx] == 3:  # delete
            j -= 1
            rst['del'] += 1
            rst["del"] += 1

        elif ops_matrix[i_idx][j_idx] == 1:  # substitute
            i -= 1
            j -= 1
            rst['sub'] += 1
            rst["sub"] += 1

        if i < 0 and j >= 0:
            rst['del'] += 1
            rst["del"] += 1
        elif j < 0 and i >= 0:
            rst['ins'] += 1
            rst["ins"] += 1

    match_idx.reverse()
    wrong_cnt = cost_matrix[len_hyp][len_ref]
    rst['wrong'] = wrong_cnt
    rst["wrong"] = wrong_cnt

    return rst

def print_cer_detail(rst):
    return ("(" + "nwords=" + str(rst['nwords']) + ",cor=" + str(rst['cor'])
            + ",ins=" + str(rst['ins']) + ",del=" + str(rst['del']) + ",sub="
            + str(rst['sub']) + ") corr:" + '{:.2%}'.format(rst['cor']/rst['nwords'])
            + ",cer:" + '{:.2%}'.format(rst['wrong']/rst['nwords']))

if __name__ == '__main__':
def print_cer_detail(rst):
    return (
        "("
        + "nwords="
        + str(rst["nwords"])
        + ",cor="
        + str(rst["cor"])
        + ",ins="
        + str(rst["ins"])
        + ",del="
        + str(rst["del"])
        + ",sub="
        + str(rst["sub"])
        + ") corr:"
        + "{:.2%}".format(rst["cor"] / rst["nwords"])
        + ",cer:"
        + "{:.2%}".format(rst["wrong"] / rst["nwords"])
    )


if __name__ == "__main__":
    if len(sys.argv) != 4:
        print("usage : python compute-wer.py test.ref test.hyp test.wer")
        sys.exit(0)