<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Dear Andreas , <br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>to calculate perplexity i do this : <br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>lenovo@ubuntu:~/Documents/srilm$ ngram -lm class_based_model '/home/lenovo/Documents/srilm/ML_N_Class/IN_SRILM' -ppl '/home/lenovo/Documents/srilm/ML_N_Class/titi.txt' <br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>titi.txt is my training data <br></span></div><div style="color: rgb(0, 0,
0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>1- i should calculate perplexity elso in my test data ? <br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>2- how can i interpretate this result : </span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>file /home/lenovo/Documents/srilm/ML_N_Class/titi.txt: 18657 sentences, 66817 words, 5285 OOVs<br>0 zeroprobs, logprob= -259950 ppl= 1744.69 ppl1= 16773.8</span></div><div> what is the difference between ppl and ppl1 ??<br></div><div style="font-family:'times new roman', 'new york', times, serif;"><font class="Apple-style-span" size="4">----</font></div><div
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