Ilmu Pengetahuan & Teknologi

An interesting free ebook

When we developed the course Statistical Machine Learning for engineering students at Uppsala University, we found no appropriate textbook, so we ended up writing our own. It will be published by Cambridge University Press in 2021.

Andreas Lindholm, Niklas Wahlström, Fredrik Lindsten, and Thomas B. Schön

A draft of the book is available below. We will keep a PDF of the book freely available also after its publication.

Latest draft of the book (older versions >>)

Table of Contents

1. Introduction
   • The machine learning problem
   • Machine learning concepts via examples
   • About this book
2. Supervised machine learning: a first approach
   • Supervised machine learning
   • A distance-based method: k-NN
   • A rule-based method: Decision trees
3. Basic parametric models for regression and classification
   • Linear regression
   • Classification and logistic regression
   • Polynomial regression and regularization
   • Generalized linear models
4. Understanding, evaluating and improving the performance
   • Expected new data error: performance in production
   • Estimating the expected new data error
   • The training error–generalization gap decomposition
   • The bias-variance decomposition
   • Additional tools for evaluating binary classifiers
5. Learning parametric models
   • Principles pf parametric modelling
   • Loss functions and likelihood-based models
   • Regularization
   • Parameter optimization
   • Optimization with large datasets
   • Hyperparameter optimization
6. Neural networks and deep learning
   • The neural network model
   • Training a neural network
   • Convolutional neural networks
   • Dropout
7. Ensemble methods: Bagging and boosting
   • Bagging
   • Random forests
   • Boosting and AdaBoost
   • Gradient boosting
8. Nonlinear input transformations and kernels
   • Creating features by nonlinear input transformations
   • Kernel ridge regdression
   • Support vector regression
   • Kernel theory
   • Support vector classification
9. The Bayesian approach and Gaussian processes
   • The Bayesian idea
   • Bayesian linear regression
   • The Gaussian process Online material: Gaussian process visualization
   • Practial aspects of the Gaussian process
   • Other Bayesian methods in machine learning
10. Generative models and learning from unlabeled data
    • The Gaussian mixture model and discriminant analysis
    • Cluster analysis
    • Deep generative models
    • Representation learning and dimensionality reduction
11. User aspects of machine learning
    • Defining the machine learning problem
    • Improving a machine learning model
    • What if we cannot collect more data?
    • Practical data issues
    • Can I trust my machine learning model?
12. Ethics in machine learning (by David Sumpter)
    • Fairness and error functions
    • Misleading claims about performance
    • Limitations of training data

Source: https://ai.googleblog.com/2021/07/speeding-up-reinforcement-learning-with.html

Reinforcement learning (RL) is a popular method for teaching robots to navigate and manipulate the physical world, which itself can be simplified and expressed as interactions between rigid bodies¹ (i.e., solid physical objects that do not deform when a force is applied to them). In order to facilitate the collection of training data in a practical amount of time, RL usually leverages simulation, where approximations of any number of complex objects are composed of many rigid bodies connected by joints and powered by actuators. But this poses a challenge: it frequently takes millions to billions of simulation frames for an RL agent to become proficient at even simple tasks, such as walking, using tools, or assembling toy blocks.

Belgia sudah mewajibkan pengukuran CO2 di tempat umum. [https://www.info-coronavirus.be/en/ventilation/]

Penelitian menganjurkan CO2 sebagai sarana mengukur resiko penularan COVID-19

Referensi

• Coronavirus COVID-19 Ventilation
• How to lower risk of coronavirus spreading indoors
• Exhaled CO2 as COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities

Popular Augmentation library:

Augly

Augly (https://github.com/facebookresearch/AugLy) and Albumentations (https://github.com/albumentations-team/albumentations)

Albumentations

Albumentations example:

References

• Augly: A new data augmentation library to help build more robust AI models
• Augly at github
• Albumentations , do more with less data
• Albumentation at github
• Comparison of Different Image Data Augmentation Approaches