Update inference.py
Browse files- inference.py +80 -80
inference.py
CHANGED
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@@ -1,81 +1,81 @@
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import os
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import torch
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import pandas as pd
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import transformers
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from pynvml import *
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import torch
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from langchain import hub
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from langchain_core.output_parsers import StrOutputParser
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from langchain_core.runnables import RunnablePassthrough
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from model_ret import load_model_and_pipeline
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from create_retriever import retriever_chroma
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# Model chain class
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class model_chain:
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model_name = ""
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def __init__(self,
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model_name_local,
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model_name_online="Llama",
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use_online=True,
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embedding_name="
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splitter_type_dropdown="character",
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chunk_size_slider=512,
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chunk_overlap_slider=30,
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separator_textbox="\n",
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max_tokens_slider=2048) -> None:
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if os.path.exists(f"models//{model_name_local}") and len(os.listdir(f"models//{model_name_local}")):
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import gradio as gr
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gr.Info("Model *()* from online!!")
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self.model_name = model_name_local
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else:
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self.model_name = model_name_online
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self.tokenizer, self.model, self.llm = load_model_and_pipeline(self.model_name)
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# Creating the retriever
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# self.retriever = ensemble_retriever(embedding_name,
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# splitter_type=splitter_type_dropdown,
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# chunk_size=chunk_size_slider,
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# chunk_overlap=chunk_overlap_slider,
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# separator=separator_textbox,
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# max_tokens=max_tokens_slider)
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self.retriever = retriever_chroma(False, embedding_name, splitter_type_dropdown,
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chunk_size_slider, chunk_size_slider,
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separator_textbox, max_tokens_slider)
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# Defining the RAG chain
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prompt = hub.pull("rlm/rag-prompt")
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self.rag_chain = (
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{"context": self.retriever | self.format_docs, "question": RunnablePassthrough()}
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| prompt
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| self.llm
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| StrOutputParser()
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)
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# Helper function to format documents
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def format_docs(self, docs):
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return "\n\n".join(doc.page_content for doc in docs)
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# Retrieve RAG chain
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def rag_chain_ret(self):
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return self.rag_chain
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# Answer retrieval function
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def ans_ret(self, inp):
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if self.model_name == 'Flant5':
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my_question = "What is KUET?"
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data = self.retriever.invoke(inp)
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context = ""
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for x in data[:2]:
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context += (x.page_content) + "\n"
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inputs = f"""Please answer to this question using this context:\n{context}\n{my_question}"""
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inputs = self.tokenizer(inputs, return_tensors="pt")
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outputs = self.model.generate(**inputs)
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answer = self.tokenizer.decode(outputs[0])
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from textwrap import fill
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ans = fill(answer, width=100)
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return ans
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ans = self.rag_chain.invoke(inp)
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ans = ans.split("Answer:")[1]
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return ans
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import os
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import torch
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import pandas as pd
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import transformers
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from pynvml import *
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import torch
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from langchain import hub
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from langchain_core.output_parsers import StrOutputParser
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from langchain_core.runnables import RunnablePassthrough
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from model_ret import load_model_and_pipeline
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from create_retriever import retriever_chroma
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+
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# Model chain class
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class model_chain:
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model_name = ""
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+
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def __init__(self,
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model_name_local,
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model_name_online="Llama",
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use_online=True,
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embedding_name="sentence-transformers/all-mpnet-base-v2",
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splitter_type_dropdown="character",
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chunk_size_slider=512,
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chunk_overlap_slider=30,
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separator_textbox="\n",
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max_tokens_slider=2048) -> None:
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if os.path.exists(f"models//{model_name_local}") and len(os.listdir(f"models//{model_name_local}")):
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import gradio as gr
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gr.Info("Model *()* from online!!")
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self.model_name = model_name_local
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else:
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self.model_name = model_name_online
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self.tokenizer, self.model, self.llm = load_model_and_pipeline(self.model_name)
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# Creating the retriever
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# self.retriever = ensemble_retriever(embedding_name,
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# splitter_type=splitter_type_dropdown,
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# chunk_size=chunk_size_slider,
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# chunk_overlap=chunk_overlap_slider,
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# separator=separator_textbox,
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# max_tokens=max_tokens_slider)
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self.retriever = retriever_chroma(False, embedding_name, splitter_type_dropdown,
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chunk_size_slider, chunk_size_slider,
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separator_textbox, max_tokens_slider)
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+
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# Defining the RAG chain
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prompt = hub.pull("rlm/rag-prompt")
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self.rag_chain = (
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{"context": self.retriever | self.format_docs, "question": RunnablePassthrough()}
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| prompt
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| self.llm
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| StrOutputParser()
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)
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# Helper function to format documents
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def format_docs(self, docs):
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return "\n\n".join(doc.page_content for doc in docs)
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# Retrieve RAG chain
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def rag_chain_ret(self):
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return self.rag_chain
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# Answer retrieval function
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def ans_ret(self, inp):
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if self.model_name == 'Flant5':
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my_question = "What is KUET?"
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data = self.retriever.invoke(inp)
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context = ""
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for x in data[:2]:
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context += (x.page_content) + "\n"
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inputs = f"""Please answer to this question using this context:\n{context}\n{my_question}"""
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inputs = self.tokenizer(inputs, return_tensors="pt")
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outputs = self.model.generate(**inputs)
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answer = self.tokenizer.decode(outputs[0])
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from textwrap import fill
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ans = fill(answer, width=100)
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return ans
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ans = self.rag_chain.invoke(inp)
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ans = ans.split("Answer:")[1]
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return ans
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