
Explore data preparation and model building in real world auto machine learning, including standard scaling, train-test split, and comparing logistic regression, decision trees, random forest, and SVM.
Explore AutoML techniques using open-source Python libraries to automate model selection, preprocessing, and evaluation, building and comparing pipelines, and saving the best model for predictions.
Explore ID card fraud detection using principal component analysis for dimensionality reduction, preparing a numerical dataset with 28 components for automated machine learning model building and prediction.
Explore data analysis for fraud detection: inspect dataset shape, check for nulls, visualize normal versus fraud cases, address imbalance, and prepare independent features and the target for modeling.
Explore automated machine learning with PyCaret to compare and train classification, anomaly detection, and other models, set up data, evaluate, and deploy the best model.
Learn practical feature engineering by converting mixed data types into numeric and categorical features, extracting date and time, encoding travel attributes like stops and class, and cleaning irrelevant fields.
Split arrival and departure times into hours and minutes, encode routes and airlines, and prepare data with one-hot and label encoding for modeling.
Build a model with random forest regression, tune hyperparameters via randomized search, and evaluate performance using distribution plots, training versus test predictions, and the r-squared score.
Explore building and forecasting time series with auto keras and auto ml libraries. Learn data loading, preprocessing, model training, evaluation, and exporting for practical automation.
Build and predict with artificial neural networks using a sequential model, configure multiple layers and activation functions, and optimize loss, then assess accuracy with a confusion matrix.
Develop an air quality index predictor by importing libraries and datasets from 2013–2018, using Bangalore data with temperature, humidity, wind, and PM levels, and explore autoML and MLP deployment.
Analyze a large dataset to identify missing values, categorize features into numerical (continuous or discrete) and categorical, and distinguish discrete from continuous using a twenty-five unique values threshold; plan imputation.
Learn feature engineering for real-world auto machine learning, including one-hot and level encoding, handling location and date, imputation, scaling, and train-test splitting to prep data for models.
Explore automated machine learning with pycaret to prepare data, train models, and deploy predictions quickly. Compare models to identify best performing classifiers.
Learn to deploy a machine learning model with a Flask API, load the pickle model, create a web interface, and prepare deployment to Heroku for real-world predictions.
Analyze data by checking for null values, converting types, renaming and removing columns, then visualize distributions with pie charts, histograms, and distribution plots across price, diameter, toppings, and size.
Automated machine learning (AutoML) represents a fundamental shift in the way organizations of all sizes approach machine learning and data science. Applying traditional machine learning methods to real-world business problems is time-consuming, resource-intensive, and challenging. It requires experts in several disciplines, including data scientists – some of the most sought-after professionals in the job market right now.
Automated machine learning changes that, making it easier to build and use machine learning models in the real world by running systematic processes on raw data and selecting models that pull the most relevant information from the data – what is often referred to as “the signal in the noise.” Automated machine learning incorporates machine learning best practices from top-ranked data scientists to make data science more accessible across the organization.
“Data science is the transformation of data using mathematics and statistics into valuable insights, decisions, and products”
As data science evolves and gains new “instruments” over time, the core business goal remains focused on finding useful patterns and yielding valuable insights from data. Today, data science is employed across a broad range of industries and aids in various analytical problems. For example, in marketing, exploring customer age, gender, location, and behavior allows for making highly targeted campaigns, evaluating how much customers are prone to make a purchase or leave. In banking, finding outlying client actions aids in detecting fraud. In healthcare, analyzing patients’ medical records can show the probability of having diseases, etc.
The data science landscape encompasses multiple interconnected fields that leverage different techniques and tools.
There’s a difference between data mining and very popular machine learning. Still, machine learning is about creating algorithms to extract valuable insights, it’s heavily focused on continuous use in dynamically changing environments and emphasizes adjustments, retraining, and updating of algorithms based on previous experiences. The goal of machine learning is to constantly adapt to new data and discover new patterns or rules in it. Sometimes it can be realized without human guidance and explicit reprogramming.
Machine learning is the most dynamically developing field of data science today due to a number of recent theoretical and technological breakthroughs. They led to natural language processing, image recognition, or even the generation of new images, music, and texts by machines. Machine learning remains the main “instrument” of building artificial intelligence.
Machine Learning Workflow
Generally, the workflow follows these simple steps:
Collect data. Use your digital infrastructure and other sources to gather as many useful records as possible and unite them into a dataset.
Prepare data. Prepare your data to be processed in the best possible way. Data preprocessing and cleaning procedures can be quite sophisticated, but usually, they aim at filling the missing values and correcting other flaws in data, like different representations of the same values in a column (e.g. December 14, 2016 and 12.14.2016 won’t be treated the same by the algorithm).
Split data. Separate subsets of data to train a model and further evaluate how it performs against new data.
Train a model. Use a subset of historic data to let the algorithm recognize the patterns in it.
Test and validate a model. Evaluate the performance of a model using testing and validation subsets of historic data and understand how accurate the prediction is.
Deploy a model. Embed the tested model into your decision-making framework as a part of an analytics solution or let users leverage its capabilities (e.g. better target your product recommendations).
Iterate. Collect new data after using the model to incrementally improve it.