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IMvision12
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Parent(s):
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Browse files- .gitignore +160 -0
- app.py +134 -0
- data.py +61 -0
- model.py +73 -0
- requirements.txt +10 -0
.gitignore
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# Byte-compiled / optimized / DLL files
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__pycache__/
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*.py[cod]
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*$py.class
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# C extensions
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*.so
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# Distribution / packaging
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dist/
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eggs/
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lib/
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parts/
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sdist/
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var/
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wheels/
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share/python-wheels/
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*.egg-info/
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.installed.cfg
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*.egg
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MANIFEST
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nosetests.xml
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coverage.xml
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*.cover
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*.py,cover
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.pytest_cache/
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cover/
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# Translations
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*.pot
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# Django stuff:
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*.log
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local_settings.py
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# PyBuilder
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.pybuilder/
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target/
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# Jupyter Notebook
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.ipynb_checkpoints
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# IPython
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profile_default/
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ipython_config.py
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# pyenv
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# For a library or package, you might want to ignore these files since the code is
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# intended to run in multiple environments; otherwise, check them in:
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# pipenv
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# having no cross-platform support, pipenv may install dependencies that don't work, or not
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# install all needed dependencies.
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#Pipfile.lock
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# poetry
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# Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
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# This is especially recommended for binary packages to ensure reproducibility, and is more
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# commonly ignored for libraries.
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# https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
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#poetry.lock
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# pdm
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# Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
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#pdm.lock
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# pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
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# in version control.
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# https://pdm.fming.dev/#use-with-ide
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.pdm.toml
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# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
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__pypackages__/
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# Celery stuff
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celerybeat-schedule
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celerybeat.pid
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# SageMath parsed files
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*.sage.py
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.env
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.venv
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env/
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venv/
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ENV/
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env.bak/
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venv.bak/
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# Spyder project settings
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.spyderproject
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.spyproject
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.ropeproject
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# mkdocs documentation
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/site
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# mypy
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.mypy_cache/
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.dmypy.json
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dmypy.json
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# Pyre type checker
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.pyre/
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# pytype static type analyzer
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.pytype/
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# Cython debug symbols
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cython_debug/
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# PyCharm
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# JetBrains specific template is maintained in a separate JetBrains.gitignore that can
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# be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
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# and can be added to the global gitignore or merged into this file. For a more nuclear
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# option (not recommended) you can uncomment the following to ignore the entire idea folder.
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#.idea/
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app.py
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from data import create_retriever
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from model import initialize_llmchain
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import streamlit as st
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import os
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from langchain.chains import RetrievalQA
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from streamlit_chat import message
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import sys
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__import__('pysqlite3')
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sys.modules['sqlite3'] = sys.modules.pop('pysqlite3')
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st.set_page_config(page_title="🤗Chat💬")
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embed_model_dict = {
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"MiniLM-L6": "nreimers/MiniLM-L6-H384-uncased",
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"Mpnet-Base": "sentence-transformers/all-mpnet-base-v2",
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}
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llm_model_dict = {
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"Llama-2 7B (Free)" : "daryl149/llama-2-7b-chat-hf",
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"Gemma 7B": "google/gemma-7b",
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"Gemma 2B": "google/gemma-2b",
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"Gemma 7B-it": "google/gemma-7b-it",
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"Gemma 2B-it": "google/gemma-2b-it",
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"Llama-2 7B Chat HF": "meta-llama/Llama-2-7b-chat-hf",
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"Llama-2 70B Chat HF": "meta-llama/Llama-2-70b-chat-hf",
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"Llama-2 13B Chat HF": "meta-llama/Llama-2-13b-chat-hf",
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"Llama-2 70B": "meta-llama/Llama-2-70b",
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"Llama-2 13B": "meta-llama/Llama-2-13b",
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"Llama-2 7B": "meta-llama/Llama-2-7b",
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}
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def save_uploadedfile(uploadedfile):
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if not os.path.exists("./tempfolder"):
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os.makedirs("./tempfolder")
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full_path = os.path.join("tempfolder", uploadedfile.name)
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with open(full_path, "wb") as f:
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f.write(uploadedfile.getbuffer())
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return st.success("Saved File")
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with st.sidebar:
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st.markdown(
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f"""
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<style>
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section[data-testid="stSidebar"] .css-ng1t4o {{width: 100rem;}}
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</style>
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""",
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unsafe_allow_html=True,
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)
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st.header("Choose and Configure your Embedding Model", divider="rainbow")
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uploaded_files = st.file_uploader(
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"Choose a file", type=["pdf"], accept_multiple_files=True
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)
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embed_model = embed_model_dict[
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st.selectbox("Select Embedding Model", ("MiniLM-L6", "Mpnet-Base"))
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]
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for file in uploaded_files:
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save_uploadedfile(file)
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chunksize = st.slider("Chunk Size", 256, 1024, 400, 10)
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chunkoverlap = st.slider("Chunk Overlap", 100, 500, 300, 10)
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63 |
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st.header("Choose and Configure your LLM Model", divider="rainbow")
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llm_model = llm_model_dict[
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st.selectbox("Select LLM Model", (llm_model_dict.keys()))
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]
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access_token = st.text_input("Enter HuggingFace Access Token")
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temperature = st.slider("Temperature", 256, 1024, 400, 10)
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max_tokens = st.slider("Max Tokens", 256, 1024, 400, 10)
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top_k = st.slider("top_k", 256, 1024, 400, 10)
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quantization_option = st.radio("Quantization Option", ("8Bit Quant", "4Bit Quant"))
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load_in_4bit = True if quantization_option == "4Bit Quant" else False
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load_in_8bit = True if quantization_option != "4Bit Quant" else False
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if st.button("Submit"):
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with st.spinner("Loading.... Processing PDFs..."):
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retriever = create_retriever(
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pdf_directory="./tempfolder",
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chunk_size=chunksize,
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chunk_overlap=chunkoverlap,
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embedding_model_name=embed_model,
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)
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with st.spinner("Loading LLM Model...."):
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llm = initialize_llmchain(
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llm_model=llm_model,
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temperature=temperature,
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max_tokens=max_tokens,
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top_k=top_k,
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load_in_4bit=load_in_4bit,
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load_in_8bit=load_in_8bit,
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access_token=access_token,
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)
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st.title("💬 Chat With PDFs")
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st.markdown("- Choose 🚀 and Configure your Embedding Model")
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st.markdown("- Choose 🚀 and COnfigure your LLM Model.")
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st.markdown("- Enter your HuggingFace Token ❗️(Only Llama-2 7B (Free) will work without HF Token)")
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st.markdown(
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"""
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<p align="center">It will take some time <b>⏳</b> to download and load the models.</p>
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<p align="center">Once download is complete you can start Chatting!.</p>
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""",
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unsafe_allow_html=True,
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)
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107 |
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st.markdown('''
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<style>
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110 |
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[data-testid="stMarkdownContainer"] ul{
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padding-left:40px;
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112 |
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}
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113 |
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</style>
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''', unsafe_allow_html=True)
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if "messages" not in st.session_state:
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118 |
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st.session_state.messages = []
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119 |
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120 |
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for message in st.session_state.messages:
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with st.chat_message(message["role"]):
|
122 |
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st.markdown(message["content"])
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|
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+
|
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if prompt := st.chat_input("What is up?", key="user_input"):
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st.session_state.messages.append({"role": "user", "content": prompt})
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127 |
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|
128 |
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with st.chat_message("user"):
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st.markdown(prompt)
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130 |
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with st.chat_message("assistant"):
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response = "Hi"
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133 |
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st.session_state.messages.append({"role": "assistant", "content": response})
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134 |
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st.markdown(response)
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data.py
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1 |
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from langchain_community.document_loaders import PyPDFDirectoryLoader
|
2 |
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from typing import Optional, Dict
|
3 |
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from langchain.text_splitter import RecursiveCharacterTextSplitter
|
4 |
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from langchain_community.vectorstores import Chroma
|
5 |
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from langchain_community.embeddings import HuggingFaceEmbeddings
|
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import warnings
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warnings.simplefilter("ignore")
|
9 |
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def create_retriever(
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11 |
+
pdf_directory: str,
|
12 |
+
chunk_size: int = 1000,
|
13 |
+
chunk_overlap: int = 100,
|
14 |
+
embedding_model_name: str = "sentence-transformers/all-mpnet-base-v2",
|
15 |
+
model_kwargs: Optional[Dict[str, str]] = {"device": "cpu"},
|
16 |
+
):
|
17 |
+
"""
|
18 |
+
Creates and returns a retriever object based on the provided PDF directory and configurations.
|
19 |
+
|
20 |
+
Args:
|
21 |
+
- pdf_directory (str): Path to the directory containing PDF files.
|
22 |
+
- chunk_size (int): Size of each chunk for splitting documents.
|
23 |
+
- chunk_overlap (int): Overlap size between adjacent chunks.
|
24 |
+
- embedding_model_name (str): Name of the HuggingFace embedding model to be used.
|
25 |
+
- model_kwargs (dict, optional): Additional keyword arguments for the embedding model.
|
26 |
+
|
27 |
+
Returns:
|
28 |
+
- retriever (Retriever): Retriever object for retrieving documents.
|
29 |
+
|
30 |
+
Raises:
|
31 |
+
- ValueError: If input values are invalid.
|
32 |
+
"""
|
33 |
+
if chunk_size <= 0:
|
34 |
+
raise ValueError("Chunk size must be a positive integer.")
|
35 |
+
if chunk_overlap < 0 or chunk_overlap >= chunk_size:
|
36 |
+
raise ValueError(
|
37 |
+
"Chunk overlap must be a non-negative integer less than the chunk size."
|
38 |
+
)
|
39 |
+
# Load documents
|
40 |
+
loader = PyPDFDirectoryLoader(pdf_directory)
|
41 |
+
documents = loader.load()
|
42 |
+
|
43 |
+
# Split documents into small chunks
|
44 |
+
text_splitter = RecursiveCharacterTextSplitter(
|
45 |
+
chunk_size=chunk_size, chunk_overlap=chunk_overlap
|
46 |
+
)
|
47 |
+
all_splits = text_splitter.split_documents(documents)
|
48 |
+
|
49 |
+
# Specify embedding model
|
50 |
+
embeddings = HuggingFaceEmbeddings(
|
51 |
+
model_name=embedding_model_name, model_kwargs=model_kwargs
|
52 |
+
)
|
53 |
+
|
54 |
+
# Embed document chunks
|
55 |
+
vectordb = Chroma.from_documents(
|
56 |
+
documents=all_splits, embedding=embeddings, persist_directory="chroma_db"
|
57 |
+
)
|
58 |
+
|
59 |
+
# Create and return retriever
|
60 |
+
retriever = vectordb.as_retriever()
|
61 |
+
return retriever
|
model.py
ADDED
@@ -0,0 +1,73 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
import torch
|
2 |
+
from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline
|
3 |
+
from langchain.llms import HuggingFacePipeline
|
4 |
+
from transformers import BitsAndBytesConfig
|
5 |
+
|
6 |
+
def initialize_llmchain(
|
7 |
+
llm_model: str,
|
8 |
+
temperature: float,
|
9 |
+
max_tokens: int,
|
10 |
+
top_k: int,
|
11 |
+
access_token: str = None,
|
12 |
+
torch_dtype: str = "auto",
|
13 |
+
load_in_8bit: bool = False,
|
14 |
+
load_in_4bit: bool = False,
|
15 |
+
) -> HuggingFacePipeline:
|
16 |
+
"""
|
17 |
+
Initializes a language model chain based on the provided parameters.
|
18 |
+
|
19 |
+
Args:
|
20 |
+
- llm_model (str): The name of the language model to initialize.
|
21 |
+
- temperature (float): The temperature parameter for text generation.
|
22 |
+
- max_tokens (int): The maximum number of tokens to generate.
|
23 |
+
- top_k (int): The top-k parameter for token selection during generation.
|
24 |
+
- torch_dtype (str): The torch dtype to be used for model inference (default is "auto").
|
25 |
+
- load_in_8bit (bool): Whether to load the model in 8-bit format (default is False).
|
26 |
+
- load_in_4bit (bool): Whether to load the model in 4-bit format (default is False).
|
27 |
+
|
28 |
+
Returns:
|
29 |
+
- HuggingFacePipeline: Initialized language model pipeline.
|
30 |
+
"""
|
31 |
+
|
32 |
+
if load_in_8bit:
|
33 |
+
bnb_config = BitsAndBytesConfig(
|
34 |
+
load_in_8bit=True
|
35 |
+
)
|
36 |
+
elif load_in_4bit:
|
37 |
+
bnb_config = BitsAndBytesConfig(
|
38 |
+
load_in_8bit=False,
|
39 |
+
load_in_4bit=True,
|
40 |
+
bnb_4bit_quant_type="nf4",
|
41 |
+
bnb_4bit_use_double_quant=True,
|
42 |
+
bnb_4bit_compute_dtype=torch.bfloat16
|
43 |
+
)
|
44 |
+
else:
|
45 |
+
bnb_config = None
|
46 |
+
|
47 |
+
model_kwargs = {
|
48 |
+
"temperature": temperature,
|
49 |
+
"max_new_tokens": max_tokens,
|
50 |
+
"top_k": top_k,
|
51 |
+
"torch_dtype": torch_dtype,
|
52 |
+
}
|
53 |
+
|
54 |
+
# Initialize model and tokenizer
|
55 |
+
model = AutoModelForCausalLM.from_pretrained(
|
56 |
+
llm_model,
|
57 |
+
low_cpu_mem_usage=True,
|
58 |
+
quantization_config=bnb_config
|
59 |
+
)
|
60 |
+
tokenizer = AutoTokenizer.from_pretrained(llm_model)
|
61 |
+
|
62 |
+
# Initialize pipeline
|
63 |
+
pipe = pipeline(
|
64 |
+
task="text-generation",
|
65 |
+
model=model,
|
66 |
+
tokenizer=tokenizer,
|
67 |
+
token=access_token,
|
68 |
+
model_kwargs=model_kwargs,
|
69 |
+
pad_token_id=tokenizer.eos_token_id,
|
70 |
+
)
|
71 |
+
|
72 |
+
llm = HuggingFacePipeline(pipeline=pipe)
|
73 |
+
return llm
|
requirements.txt
ADDED
@@ -0,0 +1,10 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
pypdf
|
2 |
+
langchain
|
3 |
+
sentence-transformers
|
4 |
+
peft
|
5 |
+
chromadb
|
6 |
+
accelerate==0.28.0
|
7 |
+
bitsandbytes==0.43.0
|
8 |
+
streamlit
|
9 |
+
streamlit-chat
|
10 |
+
pysqlite3-binary
|