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import gradio as gr
import random
import torch
from transformers import AutoConfig
from transformers import GPT2Tokenizer, GPT2LMHeadModel
from itertools import chain
config = AutoConfig.from_pretrained('gorkemgoknar/gpt2chatbotenglish')
model = GPT2LMHeadModel.from_pretrained('gorkemgoknar/gpt2chatbotenglish', config=config)
tokenizer = GPT2Tokenizer.from_pretrained('gorkemgoknar/gpt2chatbotenglish')
tokenizer.model_max_length = 1024
#Dynamic Temperature
#See experiment https://www.linkedin.com/pulse/ai-goes-job-interview-g%25C3%25B6rkem-g%25C3%25B6knar
base_temperature = 1.3
dynamic_temperature_range = 0.15
rand_range = random.uniform(-1 * dynamic_temperature_range , dynamic_temperature_range )
temperature = base_temperature + rand_range
SPECIAL_TOKENS = ["<bos>", "<eos>", "<speaker1>", "<speaker2>", "<pad>"]
#See document for experiment https://www.linkedin.com/pulse/ai-goes-job-interview-g%C3%B6rkem-g%C3%B6knar/
def get_chat_response(name,history=[], input_txt = "Hello , what is your name?"):
ai_history = history.copy()
#ai_history.append(input_txt)
ai_history_e = [tokenizer.encode(e) for e in ai_history]
personality = "My name is " + name
bos, eos, speaker1, speaker2 = tokenizer.convert_tokens_to_ids(SPECIAL_TOKENS[:-1])
#persona first, history next, input text must be at the end
#[[bos, persona] , [history] , [input]]
sequence = [[bos] + tokenizer.encode(personality)] + ai_history_e + [tokenizer.encode(input_txt)]
##[[bos, persona] , [speaker1 .., speakser2 .., speaker1 ... speaker2 ... , [input]]
sequence = [sequence[0]] + [[speaker2 if (len(sequence)-i) % 2 else speaker1] + s for i, s in enumerate(sequence[1:])]
sequence = list(chain(*sequence))
#bot_input_ids = tokenizer.encode(personality + tokenizer.eos_token + input_txt + tokenizer.eos_token , return_tensors='pt')
sequence_len = len(sequence)
#optimum response and speed
chat_history_ids = model.generate(
torch.tensor(sequence).unsqueeze(0), max_length=50,
pad_token_id=tokenizer.eos_token_id,
no_repeat_ngram_size=3,
do_sample=True,
top_k=60,
top_p=0.8,
temperature = 1.3
)
out_str = tokenizer.decode(chat_history_ids[0][sequence_len:], skip_special_tokens=True)
#out_str = tokenizer.decode(chat_history_ids[:, sequence.shape[-1]:][0], skip_special_tokens=False)
return out_str
##you can use anyone from below
'''
| Macleod | Moran | Brenda | Ramirez | Peter Parker | Quentin Beck | Andy
| Red | Norton | Willard | Chief | Chef | Kilgore | Kurtz | Westley | Buttercup
| Vizzini | Fezzik | Inigo | Man In Black | Taylor | Zira | Zaius | Cornelius
| Bud | Lindsey | Hippy | Erin | Ed | George | Donna | Trinity | Agent Smith
| Morpheus | Neo | Tank | Meryl | Truman | Marlon | Christof | Stromboli | Bumstead
| Schreber | Walker | Korben | Cornelius | Loc Rhod | Anakin | Obi-Wan | Palpatine
| Padme | Superman | Luthor | Dude | Walter | Donny | Maude | General | Starkiller
| Indiana | Willie | Short Round | John | Sarah | Terminator | Miller | Sarge | Reiben
| Jackson | Upham | Chuckie | Will | Lambeau | Sean | Skylar | Saavik | Spock
| Kirk | Bones | Khan | Kirk | Spock | Sybok | Scotty | Bourne | Pamela | Abbott
| Nicky | Marshall | Korshunov | Troy | Vig | Archie Gates | Doc | Interrogator
| Ellie | Ted | Peter | Drumlin | Joss | Macready | Childs | Nicholas | Conrad
| Feingold | Christine | Adam | Barbara | Delia | Lydia | Cathy | Charles | Otho
| Schaefer | Han | Luke | Leia | Threepio | Vader | Yoda | Lando | Elaine | Striker
| Dr. Rumack | Kramer | David | Saavik | Kirk | Kruge | Holden | Deckard | Rachael
| Batty | Sebastian | Sam | Frodo | Pippin | Gandalf | Kay | Edwards | Laurel
| Edgar | Zed | Jay | Malloy | Plissken | Steve Rogers | Tony Stark | Scott Lang
| Bruce Banner | Bruce | Edward | Two-Face | Batman | Chase | Alfred | Dick
| Riddler | Din Djarin | Greef Karga | Kuiil | Ig-11 | Cara Dune | Peli Motto
| Toro Calican | Ripley | Meredith | Dickie | Marge | Peter | Lambert | Kane
| Dallas | Ripley | Ash | Parker | Threepio | Luke | Leia | Ben | Han | Common Bob
| Common Alice | Jack | Tyler | Marla | Dana | Stantz | Venkman | Spengler | Louis
| Fry | Johns | Riddick | Kirk | Decker | Spock | "Ilia | Indy | Belloq | Marion
| Brother | Allnut | Rose | Qui-Gon | Jar Jar
'''
def greet(character,message,history):
history = history or {"character": character, "message_history" : [] }
if history["character"] != character:
history = {"character": character, "message_history" : [] }
response = get_chat_response(character,history=history["message_history"],input_txt=message)
history["message_history"].append((message, response))
html = "<div class='chatbot'>"
for user_msg, resp_msg in history["message_history"]:
html += f"<div class='user_msg'>You: {user_msg}</div>"
html += f"<div class='resp_msg'>{character}: {resp_msg}</div>"
html += "</div>"
return html,history
personality_choices = ["Gandalf", "Riddick", "Macleod", "Morpheus", "Neo","Spock","Vader","Indy"]
examples= ["Gandalf", "What is your name?"]
css="""
.chatbox {display:flex;flex-direction:column}
.user_msg, .resp_msg {padding:4px;margin-bottom:4px;border-radius:4px;width:80%}
.user_msg {background-color:cornflowerblue;color:white;align-self:start}
.resp_msg {background-color:lightgray;align-self:self-end}
"""
#some selected ones are in for demo use
#personality_choices = ["Gandalf", "Riddick", "Macleod", "Morpheus", "Neo","Spock","Vader","Indy", "Ig-11","Threepio","Tony Stark","Batman","Vizzini"]
# Macleod| Ramirez | Peter Parker | Vizzini | Fezzik | Cornelius | Agent Smith | Korben | Deckard | Plissken | Steve Rogers | Tony Stark | Riddler | Kirk | Spock | Sybok | Scotty | Threepio | Luke | Leia | Ben | Han | Qui-Gon
personality_choices = ["Macleod","Ramirez","Morpheus","Neo","Spock","Vader","Indy","Peter Parker","Vizzini","Fezzik","Cornelius","Agent Smith","Korben","Deckard","Plissken","Steve Rogers","Tony Stark","Riddler","Kirk","Spock", "Scotty", "Threepio","Leia","Ben","Han","Qui-Gon"]
title = "Chatbot Personalities"
description = "Characters include | Macleod| Ramirez | Peter Parker | Vizzini | Fezzik | Cornelius | Agent Smith | Korben | Deckard | Plissken | Steve Rogers | Tony Stark | Riddler | Kirk | Spock | Sybok | Scotty | Threepio | Luke | Leia | Ben | Han | Qui-Gon ."
article = "<p style='text-align: center'><a href='https://www.linkedin.com/pulse/ai-goes-job-interview-g%C3%B6rkem-g%C3%B6knar/' target='_blank'>AI Goes to Job Interview</a> | <a href='https://www.metayazar.com/' target='_blank'>Metayazar AI Writer</a> |<a href='https://www.linkedin.com/in/goknar/' target='_blank'>Görkem Göknar</a></p>"
#History not implemented in this demo, use metayazar.com/chatbot for a movie and character dropdown chat interface
##interface = gr.Interface(fn=greet, inputs=[gr.inputs.Dropdown(personality_choices) ,"text"], title=title, description=description, outputs="text")
history = {"character": "None", "message_history" : [] }
interface= gr.Interface(fn=greet, inputs=[gr.inputs.Dropdown(personality_choices) ,"text", "state"], outputs=["html","state"],css=css, title=title, description=description,article=article )
if __name__ == "__main__":
interface.launch()