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Chronos User Guide
1. Overview
BigDL-Chronos (Chronos for short) is an application framework for building a fast, accurate and scalable time series analysis application.
You can use Chronos to:
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        **Forecasting**
        ^^^
        .. image:: ../Image/forecasting.svg
            :width: 200
            :alt: Alternative text
        +++
        Predict future using history data.
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        **Anomaly Detection**
        ^^^
        .. image:: ../Image/anomaly_detection.svg
            :width: 200
            :alt: Alternative text
        +++
        Discover unexpected items in data.
    
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        **Simulation**
        ^^^
        .. image:: ../Image/simulation.svg
            :width: 200
            :alt: Alternative text
        +++
        Generate similar data as history data.
2. Install
.. raw:: html
    <link rel="stylesheet" type="text/css" href="../../../_static/css/chronos_installation_guide.css" />
    <div class="displayed">
    
        <table id="table-1">
            <tbody>
                <tr>
                    <td colspan="1">Functionality</td>
                    <td colspan="1"><button id="Forecasting">Forecasting</button></td>
                    <td colspan="2"><button id="Anomaly" style="font-size: 15px">Anomaly Detection</button></td>
                    <td colspan="1"><button id="Simulation">Simulation</button></td>
                </tr>
                <tr id="model">
                    <td colspan="1">Model</td>
                    <td colspan="1"><button id="Deep_learning_models" style="font-size: 13px;">Deep learning models</button></td>
                    <td colspan="2"><button id="Prophet">Prophet</button></td>
                    <td colspan="1"><button id="ARIMA">ARIMA</button></td>
                </tr>
                <tr>
                    <td colspan="1">DL<br>framework</td>
                    <td colspan="2"><button id="pytorch"
                            title="Use PyTorch as deep learning models' backend. Most of the model support and works better under PyTorch.">PyTorch (Recommended)</button>
                    </td>
                    <td colspan="2"><button id="tensorflow"
                            title="Use Tensorflow as deep learning models' backend.">Tensorflow</button></td>
                </tr>
                <tr>
                    <td colspan="1">OS</td>
                    <td colspan="2"><button id="linux" title="Ubuntu/CentOS is recommended">Linux</button></td>
                    <td colspan="2"><button id="win" title="WSL is needed for Windows users">Windows</button></td>
                </tr>
                <tr>
                    <td colspan="1">Auto Tuning</td>
                    <td colspan="2" title="I don't need any hyperparameter auto tuning feature."><button
                            id="automlno">No</button></td>
                    <td colspan="2" title="I need chronos to help me tune the hyperparameters."><button
                            id="automlyes">Yes</button></td>
                </tr>
                <tr>
                    <td colspan="1">Hardware</td>
                    <td colspan="2"><button id="singlenode" title="For users use laptop/single node server.">Single
                            node</button></td>
                    <td colspan="2"><button id="cluster" title="For users use K8S/Yarn Cluster.">Cluster</button></td>
                </tr>
                <tr>
                    <td colspan="1">Package</td>
                    <td colspan="2"><button id="pypi" title="For users use pip to install chronos.">Pip</button></td>
                    <td colspan="2"><button id="docker" title="For users use docker image.">Docker</button></td>
                </tr>
                <tr>
                    <td colspan="1">Version</td>
                    <td colspan="2"><button id="nightly"
                            title="For users would like to try chronos's latest feature">Nightly (2.2.0b)</button>
                    </td>
                    <td colspan="2"><button id="stable"
                            title="For users would like to deploy chronos in their production">Stable (2.1.0)</button></td>
                </tr>
                <tr>
                    <td colspan="1">Install CMD</td>
                    <td colspan="4">
                        <div id="cmd" style="text-align: left;">NA</div>
                    </td>
                </tr>
            </tbody>
        </table>
    </div>
    <script src="../../../_static/js/chronos_installation_guide.js"></script> 
2.1 Pypi
When you install bigdl-chronos from PyPI. We recommend to install with a conda virtual environment. To install Conda, please refer to here.
conda create -n my_env python=3.7 setuptools=58.0.4
conda activate my_env
# click the installation panel above to find which installation option to use
pip install --pre --upgrade bigdl-chronos[pytorch]  # or other options you may want to use
source bigdl-nano-init  # accelerate the conda env
2.2 OS and Python version requirement
.. note:: 
    **Supported OS**:
     Chronos is thoroughly tested on Ubuntu (16.04/18.04/20.04), and should works fine on CentOS. If you are a Windows user, the most convenient way to use Chronos on a windows laptop might be using WSL2, you may refer to https://docs.microsoft.com/en-us/windows/wsl/setup/environment or just install a ubuntu virtual machine.
.. note:: 
    **Supported Python Version**:
     Chronos only supports Python 3.7.2 ~ latest 3.7.x. We are validating more Python versions.
3. Which document to see?
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        **Quick Tour**
        ^^^
        You may understand the basic usage of Chronos' components and learn to write the first runnable application in this quick tour page.
        +++
        `Quick Tour <./quick-tour.html>`_
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        **User Guides**
        ^^^
        Our user guides provide you with in-depth information, concepts and knowledges about Chronos.
        +++
        `Data <./data_processing_feature_engineering.html>`_ / 
        `Forecast <./forecasting.html>`_ / 
        `Detect <./anomaly_detection.html>`_ / 
        `Simulate <./simulation.html>`_
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        **How-to-Guide** / **Example**
        ^^^
        If you are meeting with some specific problems during the usage, how-to guides are good place to be checked.
        Examples provides short, high quality use case that users can emulated in their own works.
        +++
        `How-to-Guide <../Howto/index.html>`_ / `Example <../QuickStart/index.html>`_
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        **API Document**
        ^^^
        API Document provides you with a detailed description of the Chronos APIs. 
        +++
        `API Document <../../PythonAPI/Chronos/index.html>`_