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ngram_gen.py
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#In command line/ terminal
# python3 ngram_gen.py "sample_corpus1.csv"
import sys, csv
import pandas as pd
#sys.argv will contain["python", "ngram_gen.py", "sample_corpus1.csv"]
if len(sys.argv) >1:
infile = sys.argv[1]
with open(infile, encoding='ISO-8859-1') as csvfile:
readCSV = csv.reader(csvfile, delimiter=',')
writer = csv.writer(open('output_corpus1.csv', 'w'))
writer.writerow(["User", "NGram", "Utterance_1",
"Utterance_2"])
# Use the following to generate tri-grams
# writer.writerow(["User", "NGram", "Utterance_1",
# "Utterance_2", "Utterance_3"])
next(readCSV)
tupleList = []
# Populates tuple list of 0: Sesssion Utterance ID, 1:User Name, 2:Tag, 3:Utterance
for row in readCSV:
tupleList.append((row[0], row[2], row[5], row[4]))
entered_partner_loop = False
unigram_counter = 0
#print(len(tupleList))
# assign subscripts _stu and _par to unigrams
set_student = ""
second_student_counter = 0
for i in range(len(tupleList)):
if(tupleList[i][0] == "1"):
set_student = tupleList[i][1]
entered_partner_loop = False
second_student_counter = i
if(set_student != tupleList[i][1] and entered_partner_loop == False):
entered_partner_loop = True
set_student_2 = tupleList[i][1]
for x in range(len(tupleList))[second_student_counter:]:
if(tupleList[x][0] == "1" and tupleList[x][1] != set_student):
break
else:
if(set_student_2 == tupleList[x][1]):
writer.writerow(
[set_student_2, tupleList[x][2] + "_stu", tupleList[x][3]])
unigram_counter += 1
if(set_student_2 != tupleList[x][1]):
writer.writerow(
[set_student_2, tupleList[x][2] + "_par", tupleList[x][3]])
unigram_counter += 1
else:
if(set_student == tupleList[i][1]):
writer.writerow(
[set_student, tupleList[i][2] + "_stu", tupleList[i][3]])
if(set_student != tupleList[i][1]):
writer.writerow(
[set_student, tupleList[i][2] + "_par", tupleList[i][3]])
entered_partner_loop = False
bigram_counter = 0
# assign subscripts _stu and _par to bigrams
for i in range(len(tupleList) - 1):
if(tupleList[i][0] == "1"):
set_student = tupleList[i][1]
entered_partner_loop = False
second_student_counter = i
if(set_student != tupleList[i][1] and entered_partner_loop == False):
entered_partner_loop = True
set_student_2 = tupleList[i][1]
for x in range(len(tupleList) - 1)[second_student_counter:]:
if(tupleList[x + 1][0] == "1"):
break
else:
if(set_student_2 == tupleList[x][1]):
if(set_student_2 == tupleList[x + 1][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_stu" + ", " +
tupleList[x + 1][2] + "_stu", tupleList[x][3], tupleList[x + 1][3]])
bigram_counter += 1
if(set_student_2 != tupleList[x + 1][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_stu" + ", " +
tupleList[x + 1][2] + "_par", tupleList[x][3], tupleList[x + 1][3]])
bigram_counter += 1
if(set_student_2 != tupleList[x][1]):
if(set_student_2 == tupleList[x + 1][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_par" + ", " +
tupleList[x + 1][2] + "_stu", tupleList[x][3], tupleList[x + 1][3]])
bigram_counter += 1
if(set_student_2 != tupleList[x + 1][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_par" + ", " +
tupleList[x + 1][2] + "_par", tupleList[x][3], tupleList[x + 1][3]])
bigram_counter += 1
# Checks if one ahead is start of new session, ignores
if(tupleList[i + 1][0] == "1"):
continue
else:
if(set_student == tupleList[i][1]):
if(set_student == tupleList[i + 1][1]):
writer.writerow([set_student, tupleList[i][2] + "_stu" + ", " +
tupleList[i + 1][2] + "_stu", tupleList[i][3], tupleList[i + 1][3]])
if(set_student != tupleList[i + 1][1]):
writer.writerow([set_student, tupleList[i][2] + "_stu" + ", " +
tupleList[i + 1][2] + "_par", tupleList[i][3], tupleList[i + 1][3]])
if(set_student != tupleList[i][1]):
if(set_student == tupleList[i + 1][1]):
writer.writerow([set_student, tupleList[i][2] + "_par" + ", " +
tupleList[i + 1][2] + "_stu", tupleList[i][3], tupleList[i + 1][3]])
if(set_student != tupleList[i + 1][1]):
writer.writerow([set_student, tupleList[i][2] + "_par" + ", " +
tupleList[i + 1][2] + "_par", tupleList[i][3], tupleList[i + 1][3]])
entered_partner_loop = False
#Use the follwoing to generate trigrams, if needed
trigram_counter = 0
# TODO: Change x and i to better names
for i in range(len(tupleList) - 2):
if(tupleList[i][0] == "1"):
set_student = tupleList[i][1]
entered_partner_loop = False
second_student_counter = i
if(set_student != tupleList[i][1] and entered_partner_loop == False):
entered_partner_loop = True
set_student_2 = tupleList[i][1]
for x in range(len(tupleList) - 2)[second_student_counter:]:
if(tupleList[x + 1][0] == "1" or tupleList[x + 2][0] == "1"):
break
else:
if(set_student_2 == tupleList[x][1]):
if(set_student_2 == tupleList[x + 1][1]):
if(set_student_2 == tupleList[x + 2][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_student" + ", " + tupleList[x + 1][2] + "_student" + ", " +
tupleList[x + 2][2] + "_student", tupleList[x][3] + "\n " + tupleList[x + 1][3] + "\n " + tupleList[x + 2][3]])
trigram_counter += 1
if(set_student_2 != tupleList[x + 2][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_student" + ", " + tupleList[x + 1][2] + "_student" + ", " +
tupleList[x + 2][2] + "_partner", tupleList[x][3] + "\n " + tupleList[x + 1][3] + "\n " + tupleList[x + 2][3]])
trigram_counter += 1
if(set_student_2 != tupleList[x + 1][1]):
if(set_student_2 == tupleList[x + 2][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_student" + ", " + tupleList[x + 1][2] + "_partner" + ", " +
tupleList[x + 2][2] + "_student", tupleList[x][3] + "\n " + tupleList[x + 1][3] + "\n " + tupleList[x + 2][3]])
trigram_counter += 1
if(set_student_2 != tupleList[x + 2][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_student" + ", " + tupleList[x + 1][2] + "_partner" + ", " +
tupleList[x + 2][2] + "_partner", tupleList[x][3] + "\n " + tupleList[x + 1][3] + "\n " + tupleList[x + 2][3]])
trigram_counter += 1
if(set_student_2 != tupleList[x][1]):
if(set_student_2 == tupleList[x + 1][1]):
if(set_student_2 == tupleList[x + 2][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_partner" + ", " + tupleList[x + 1][2] + "_student" + ", " +
tupleList[x + 2][2] + "_student", tupleList[x][3] + "\n " + tupleList[x + 1][3] + "\n " + tupleList[x + 2][3]])
trigram_counter += 1
if(set_student_2 != tupleList[x + 2][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_partner" + ", " + tupleList[x + 1][2] + "_student" + ", " +
tupleList[x + 2][2] + "_partner", tupleList[x][3] + "\n " + tupleList[x + 1][3] + "\n " + tupleList[x + 2][3]])
trigram_counter += 1
if(set_student_2 != tupleList[x + 1][1]):
if(set_student_2 == tupleList[x + 2][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_partner" + ", " + tupleList[x + 1][2] + "_partner" + ", " +
tupleList[x + 2][2] + "_student", tupleList[x][3] + "\n " + tupleList[x + 1][3] + "\n " + tupleList[x + 2][3]])
trigram_counter += 1
if(set_student_2 != tupleList[x + 2][1]):
writer.writerow([set_student_2, tupleList[x][2] + "_partner" + ", " + tupleList[x + 1][2] + "_partner" + ", " +
tupleList[x + 2][2] + "_partner", tupleList[x][3] + "\n " + tupleList[x + 1][3] + "\n " + tupleList[x + 2][3]])
trigram_counter += 1
# Checks if one ahead is start of new session, ignores
if(tupleList[i + 1][0] == "1" or tupleList[i + 2][0] == "1"):
continue
else:
if(set_student == tupleList[i][1]):
if(set_student == tupleList[i + 1][1]):
if(set_student == tupleList[i + 2][1]):
writer.writerow([set_student, tupleList[i][2] + "_student" + ", " + tupleList[i + 1][2] + "_student" + ", " +
tupleList[i + 2][2] + "_student", tupleList[i][3] + "\n " + tupleList[i + 1][3] + "\n " + tupleList[i + 2][3]])
if(set_student != tupleList[i + 2][1]):
writer.writerow([set_student, tupleList[i][2] + "_student" + ", " + tupleList[i + 1][2] + "_student" + ", " +
tupleList[i + 2][2] + "_partner", tupleList[i][3] + "\n " + tupleList[i + 1][3] + "\n " + tupleList[i + 2][3]])
if(set_student != tupleList[i + 1][1]):
if(set_student == tupleList[i + 2][1]):
writer.writerow([set_student, tupleList[i][2] + "_student" + ", " + tupleList[i + 1][2] + "_partner" + ", " +
tupleList[i + 2][2] + "_student", tupleList[i][3] + "\n " + tupleList[i + 1][3] + "\n " + tupleList[i + 2][3]])
if(set_student != tupleList[i + 2][1]):
writer.writerow([set_student, tupleList[i][2] + "_student" + ", " + tupleList[i + 1][2] + "_partner" + ", " +
tupleList[i + 2][2] + "_partner", tupleList[i][3] + "\n " + tupleList[i + 1][3] + "\n " + tupleList[i + 2][3]])
if(set_student != tupleList[i][1]):
if(set_student == tupleList[i + 1][1]):
if(set_student == tupleList[i + 2][1]):
writer.writerow([set_student, tupleList[i][2] + "_partner" + ", " + tupleList[i + 1][2] + "_student" + ", " +
tupleList[i + 2][2] + "_student", tupleList[i][3] + "\n " + tupleList[i + 1][3] + "\n " + tupleList[i + 2][3]])
if(set_student != tupleList[i + 2][1]):
writer.writerow([set_student, tupleList[i][2] + "_partner" + ", " + tupleList[i + 1][2] + "_student" + ", " +
tupleList[i + 2][2] + "_partner", tupleList[i][3] + "\n " + tupleList[i + 1][3] + "\n " + tupleList[i + 2][3]])
if(set_student != tupleList[i + 1][1]):
if(set_student == tupleList[i + 2][1]):
writer.writerow([set_student, tupleList[i][2] + "_partner" + ", " + tupleList[i + 1][2] + "_partner" + ", " +
tupleList[i + 2][2] + "_student", tupleList[i][3] + "\n " + tupleList[i + 1][3] + "\n " + tupleList[i + 2][3]])
if(set_student != tupleList[i + 2][1]):
writer.writerow([set_student, tupleList[i][2] + "_partner" + ", " + tupleList[i + 1][2] + "_partner" + ", " +
tupleList[i + 2][2] + "_partner", tupleList[i][3] + "\n " + tupleList[i + 1][3] + "\n " + tupleList[i + 2][3]])
#writer.writerow(["Unigrams: " + str(unigram_counter), "Bigrams: " + str(bigram_counter)])
#writer.writerow(["Unigrams: " + str(unigram_counter), "Bigrams: " + str(bigram_counter), "Trigrams: " + str(trigram_counter)])
print("Total Number of Unigrams: " + str(unigram_counter))
print("Total Number of Bigrams: " + str(bigram_counter))
#print("Total Number of Bigrams: " + str(trigram_counter)) //to get total number of trigrams
print("Total Number of Ngrams: " + str(unigram_counter + bigram_counter))
#print("Total Number of Ngrams: " + str(unigram_counter + bigram_counter + trigram_counter)) //total number of n-grams including trigrams