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play_student_model.py
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play_student_model.py
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"""
Author: @meghabyte
Script to interact with an LMKT student model. Returns likelihood of a student answering the
last question in the prompt sequence correctly.
Modify the prompts variable to test specific student state sequences.
Pass in a trained student model with the --lmkt_model argument.
Example Usage:
python play_student_model.py -m models/lmkt_student/french_student_model
"""
import torch
import transformers
from transformers import GPT2LMHeadModel, GPT2Tokenizer
import os
import mmap
from tqdm import tqdm
import numpy as np
import argparse
prompts = [
"<BOS> <QU> a cat <AN> <N> <QU> the man <AN> <N> <QU> the boy <AN> <Y> <QU> i eat. <AN> <Y> <QU> i am calm. <AN> <Y> <QU> we eat. <AN> <Y> <QU> we drink. <AN> <Y> <QU> he loves you. <AN>",
"<BOS> <QU> a cat <AN> <N> <QU> the man <AN> <N> <QU> the boy <AN> <Y> <QU> i eat. <AN> <Y> <QU> i am calm. <AN> <Y> <QU> we eat. <AN> <Y> <QU> we drink. <AN> <Y> <QU> i love you. <AN> <Y> <QU> he loves you. <AN>",
"<BOS> <QU> a cat <AN> <N> <QU> the man <AN> <N> <QU> the boy <AN> <Y> <QU> i eat. <AN> <Y> <QU> i am calm. <AN> <Y> <QU> we eat. <AN> <Y> <QU> i love you. <AN> <N> <QU> we drink. <AN> <Y> <QU> i love you. <AN> <Y> <QU> he loves you. <AN>",
"<BOS> <QU> a cat <AN> <N> <QU> the man <AN> <N> <QU> the boy <AN> <Y> <QU> i eat. <AN> <Y> <QU> i am calm. <AN> <Y> <QU> we eat. <AN> <Y> <QU> i love you. <AN> <N> <QU> she loves you. <AN> <N> <QU> we drink. <AN> <Y> <QU> i love you. <AN> <Y> <QU> he loves you. <AN>",
"<BOS> <QU> a cat <AN> <N> <QU> the man <AN> <N> <QU> the boy <AN> <Y> <QU> i eat. <AN> <Y> <QU> i am calm. <AN> <Y> <QU> we eat. <AN> <Y> <QU> i love you. <AN> <N> <QU> she loves you. <AN> <Y> <QU> we drink. <AN> <Y> <QU> i love you. <AN> <Y> <QU> he loves you. <AN>",
"<BOS> <QU> a cat <AN> <N> <QU> the man <AN> <N> <QU> the boy <AN> <Y> <QU> i eat. <AN> <Y> <QU> i am calm. <AN> <Y> <QU> we eat. <AN> <Y> <QU> i love you. <AN> <N> <QU> he loves you. <AN> <Y> <QU> we drink. <AN> <Y> <QU> i love you. <AN> <Y> <QU> he loves you. <AN>"]
def run_prompt(model_directory):
device = torch.device("cuda")
#Put Model Name
tokenizer = GPT2Tokenizer.from_pretrained(model_directory)
yes_token = tokenizer.encode("<Y>")[0]
no_token = tokenizer.encode("<N>")[0]
model = GPT2LMHeadModel.from_pretrained(model_directory)
model = model.cuda()
print("Running Prompts")
for prompt in prompts:
print(prompt)
inputs = tokenizer(prompt, return_tensors="pt")
inputs.to(device)
outputs = model(**inputs, return_dict=True)
logits = outputs.logits.detach().cpu()
last_token = logits[:, -1].cpu()
last_token_softmax = torch.softmax(last_token, dim=-1).squeeze()
print("Likelihood: "+str(last_token_softmax[yes_token]))
print("\n")
parser = argparse.ArgumentParser(description='Process Test Args.')
parser.add_argument('-m', '--lmkt_model')
args = parser.parse_args()
run_prompt(model_directory=args.lmkt_model)