Technical Fridays | Blog
Personal notes on machine learning, deep learning, and software engineering — what's Technical Fridays?
- Personal
- Data Science
- Machine Learning
- Algorithms
- Cryptography
- Mathematics
- Visualization
- Deep Learning
- Computer Vision
- Natural Language Processing
- Generative AI
- Speech Recognition
- CUDA
- LLM
- Agentic AI
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Data ScienceOverfitting and Underfitting
Explaining overfitting and underfitting in machine learning, and how the bias-variance tradeoff helps build better-generalizing models.
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Data ScienceData leakage: A big problem
Understanding data leakage when training data inadvertently contains information about the target, causing unrealistically good but unreliable model performance.
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MathematicsThe Rule of 72: Mathematics in everyday life
Deriving the Rule of 72, a quick mental math trick to estimate how long it takes an investment or debt to double at a given interest rate.
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MathematicsMathematics and Beauty
A reflection on the aesthetic beauty found in mathematics from elegant proofs to surprising results like the parity of zero.
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CryptographyHow secure are we?
An overview of online security, explaining how HTTPS, SSL/TLS, and encryption protect communications on the web.
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AlgorithmsStructure of the web
Exploring the bowtie structure of the web, how directed graph analysis reveals the web's giant strongly connected component and its IN/OUT regions.
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Data ScienceSimpson's paradox
Simpson's paradox explained through UC Berkeley's 1973 admissions data, a trend that reverses when data is aggregated across groups.
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Data ScienceEmail spam filtering: Text analysis in R
Building and evaluating an email spam filter using text analytics and machine learning in R.
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Data ScienceFriendship paradox: facebook
Exploring the friendship paradox, phenomenon where most people have fewer friends than their friends have on average, using Facebook data and Python.
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Turtle in Python: A Traffic light
A step-by-step guide to simulating a traffic light using Python's turtle graphics module with timed state transitions.