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VivanVatsa authored Dec 21, 2020
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# Data-Science-Salary-Estimator

`FORK & STAR THIS PROJECT. USE IT AS YOUR BEGINNERS DATA SCIENCE PROJECT`

## Project Synopsis

* Created a tool that estimates Data Science salaries *{Mean Absolute Error(MAE) ~ $ 11K}* to help rookie Data Scientists negotiate their income with correct stats when they get a job.
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-------------------------------
## Project Walk-through

### Data Scraping {Web Scraping}
### Data Collection {Web Scraping}


Desgined an automated Web scraper with selenium to scrape 1000+ job postings from [GlassDoor](https://www.glassdoor.co.in/).
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*For other resources scroll at last*

#### Click **.py** file-icon Below to redirect to Web Scraper Code
#### Click **.py** file-icon Below to redirect to Web Scraper Code & Branch Workspace
<a href="https://github.com/VivanVatsa/Data-Science-Salary-Estimator/blob/master/glassdoor_scraper.py">
<img src="https://img.icons8.com/ios-glyphs/2x/python.png" width="5%" height="5%">
</a>
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</a>

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## EDA {Exploratory Data Analysis
## EDA {Exploratory Data Analysis}

* All the imported distributions from data cleaning data-set, I looked at the distributions of the data and the value counts for the various categorical variables.
* Using **Matplotlib & Seaborn**, categorised and crafted a beautiful data visualisation charts & plots
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* **Lasso Regression** –> Because of the sparse data from the many categorical variables, I thought a normalized regression like lasso would be effective.
* **Random Forest** –> Again, with the sparsity associated with the data, I thought that this would be a good fit.

#### Click Model-Building Icon Below to redirect to EDA Branch Workspace
#### Click Model-Building Icon Below to redirect to Model_Building Branch Workspace
<a href="https://github.com/VivanVatsa/Data-Science-Salary-Estimator/tree/model_building">
<img src="https://img.icons8.com/windows/2x/settings--v2.gif" width="5%" height="5%">
</a>
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## Model performance

The Random Forest model far outperformed the other approaches on the test and validation sets.
The **Random Forest model** far outperformed the other approaches on the test and validation sets.

* **Random Forest : *MAE* = 11.06711409395973**
* **Linear Regression: *MAE* = 18.855189990211073**
* **Ridge Regression: *MAE* = 19.665303712749914**

#### Click Performance-Meter Icon Below to redirect to EDA Branch Workspace
#### Click Performance-Meter Icon Below to redirect to Model_Building Branch Workspace
<a href="https://github.com/VivanVatsa/Data-Science-Salary-Estimator/tree/model_building">
<img src="https://img.icons8.com/ios/2x/speed.png" width="5%" height="5%">
</a>
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## Model Productionization

* The last step in this Project was to build a flask API endpoint that was hosted on a local webserver.
* The last step in this Project was to build a **Flask API** endpoint that was hosted on a *local webserver.*
* Several Articles helped in Deployment of the Model on a local server (*all resources linked at last*)
* The API endpoint takes in a request with a list of values from a job listing and returns an estimated salary.

#### Click Flask API Icon Below to redirect to EDA Branch Workspace
#### Click Flask API Icon Below to redirect to flask_API Branch Workspace
<a href="https://github.com/VivanVatsa/Data-Science-Salary-Estimator/tree/flask_API">
<img src="https://img.icons8.com/ios/2x/api-settings.png" width="5%" height="5%">
</a>
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* Seaborn Documentation: [Click here](http://seaborn.pydata.org/examples/many_pairwise_correlations.html)
* Scraper Github: [Click Here](https://github.com/arapfaik/scraping-glassdoor-selenium)
* Flask Model-Productionization: [Click Here](https://towardsdatascience.com/productionize-a-machine-learning-model-with-flask-and-heroku-8201260503d2)

* Ken Jee Data Science Tutorials: [Ken Jee YouTube Channel](https://www.youtube.com/c/KenJee1)

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