What Is Idempotency? Designing an Idempotency-Key to Prevent Double Charges on API Retries, Explained With a Real Experiment July 20, 2026 18 min readDesign API Distributed Systems Microservices
What Is HyperLogLog? Counting Unique Items in 12KB, with the 1.04/√m Error Bound Verified by Implementation and Experiment July 20, 2026 16 min readAlgorithms Data Structures Databases Python
What Is the Circuit Breaker Pattern? A Deep Dive into Closed/Open/Half-Open via Simulation July 20, 2026 17 min readDesign Distributed Systems Microservices SRE Python
What Is RRF (Reciprocal Rank Fusion)? A Deep Dive into Hybrid Search Score Fusion with Math and Experiments July 20, 2026 16 min readSearch Engines Vector Search Algorithms Machine Learning Python
What Are Percentiles (p50/p95/p99)? Why Average Latency Lies, Proven with Experiments July 20, 2026 15 min readSRE Statistics Monitoring Python
What Is Consistent Hashing? A Deep Dive into the Ring, Virtual Nodes, and Minimal Remapping, Backed by Implementation and Experiments July 20, 2026 14 min readAlgorithms Distributed Systems Databases Python
What Is a Bloom Filter? A Deep Dive into the Mechanism, the False-Positive Math, and Optimal Design, Backed by Implementation and Experiments July 20, 2026 14 min readAlgorithms Data Structures Databases Python
A Deep Comparison of 4 Rate Limiting Algorithms: Token Bucket, Leaky Bucket, and Fixed/Sliding Windows [Implementation and Experiments] July 20, 2026 19 min readDesign Distributed Systems Algorithms API Python
Exponential Backoff and Jitter Explained: The Retry Design Playbook, Verified by Simulation July 20, 2026 16 min readDesign Distributed Systems Algorithms SRE Python
Bayes' Theorem Explained: Prior, Posterior, and Bayesian Updating with Worked Examples and Formulas July 20, 2026 6 min readStatistics Bayesian Statistics Machine Learning Mathematics
How to Use Git Hooks: Preventing Direct Pushes to main with pre-push, and Sharing Them Across a Team (lefthook/husky) July 20, 2026 5 min readGit Development
What Is TypeScript's never Type? Implementation Patterns for Exhaustive Checking in switch Statements July 20, 2026 10 min readTypeScript
What Is RAG? A Thorough Guide to How Retrieval-Augmented Generation Works and How to Build It, from Vector Search Fundamentals [2026 Edition] July 20, 2026 20 min readRAG LLM Vector Search Machine Learning Generative AI
SQL Basic Syntax Cheat Sheet: SELECT, JOIN, GROUP BY, Subqueries, and Window Functions July 20, 2026 17 min readSQL Database DB Cheat Sheet
Getting Started with boto3 [Python × AWS]: From Authentication to S3, Pagination, and Error Handling July 20, 2026 13 min readAWS Python boto3 Cloud
[2026] 10 Recommended Technical Books for Engineers: Field-by-Field Classics from a Working Engineer's Perspective July 20, 2026 6 min readBook Review Technical Books Engineer Programming
The Art of Readable Code, Summarized: Principles for Readable Code You Can Apply Tomorrow, with Examples July 20, 2026 6 min readBook Review Programming Software Design Readable Code
The Complete Guide to Linux Permissions: From What chmod's Numbers Mean to SUID and ACLs July 20, 2026 17 min readLinux Commands Infrastructure Security
The Definitive Guide to Python Environment Setup in 2026: uv vs pyenv vs venv vs conda July 20, 2026 12 min readPython Environment Setup uv Developer Tools
What Is 'use client'? A Deep Dive into the Server/Client Component Boundary in Next.js App Router July 20, 2026 15 min readNext.js React TypeScript Frontend
What Is a DDD Aggregate? A Complete Guide to Aggregate Roots, Invariants, and Transaction Boundaries July 20, 2026 7 min readDDD Domain-Driven Design Software Design TypeScript Programming
Modeling Database Connection Pool Sizing with Queueing Theory (M/M/c) July 16, 2026 11 min readDatabase DB Queueing Theory Statistics Python Simulation
Understanding SSH Key Exchange Through Diffie-Hellman and Elliptic Curve Cryptography: Verifying curve25519-sha256 and Session Key Derivation in Python July 16, 2026 12 min readSSH Cryptography Networking Python
Anomaly Detection on Prometheus Metrics: EWMA Adaptive Thresholds vs. Kalman Filter in Python July 16, 2026 9 min readPrometheus Monitoring Signal Processing Python Machine Learning
Ensemble Kalman Filter (EnKF): Theory and Python Implementation for High-Dimensional Data Assimilation July 16, 2026 6 min readMachine Learning Filtering Monte Carlo Method Python
Measuring Kubernetes' Horizontal Pod Autoscaler (HPA) as a PID Control Loop: Comparing Overshoot and Settling Time Against Ratio Control July 16, 2026 9 min readKubernetes Control Theory PID Python
Hamiltonian Monte Carlo (HMC) in Python: Overcoming the Metropolis Algorithm's Weaknesses with Leapfrog Integration July 15, 2026 14 min readMachine Learning Python Algorithms
GARCH(1,1) in Python: Modeling Volatility Clustering and Confirming the ARCH Effect with the Ljung-Box Test July 15, 2026 14 min readStatistics Python Data Visualization
Post-Quantum Cryptography in Python: Learning With Errors (LWE), Regev Encryption, and Why It Resists Quantum Computers July 15, 2026 19 min readAlgorithms Cryptography Python
SHA-256 and HMAC in Python: The Merkle-Damgård Construction, Length-Extension Attacks, and RFC 4231 Verification July 15, 2026 10 min readAlgorithms Cryptography Python
Dissecting the TLS 1.3 Handshake in Python: ECDHE, the HKDF Key Schedule, and AEAD July 15, 2026 14 min readAlgorithms Cryptography Python
SVM Kernel Design in Python: Mercer's Theorem, Gram Matrix Positive-Definiteness, and Random Fourier Features July 15, 2026 12 min readMachine Learning Python Algorithms
ARMA/ARIMA in State-Space Form: Kalman-Filter Maximum Likelihood Estimation, Reproducing statsmodels from Scratch July 15, 2026 11 min readStatistics Python Data Visualization
The RLS Algorithm in Python: Recursive Least Squares, Its Equivalence to the Kalman Filter, and the Forgetting Factor July 15, 2026 14 min readSignal Processing Python Adaptive Filtering
Nonlinear Kalman Smoothers in Python: Extended RTS Smoother and Unscented RTS Smoother July 14, 2026 14 min readMachine Learning Filtering Signal Processing Python
Teager-Kaiser Energy Operator (TKEO) in Python: A Faster Alternative to the Hilbert Transform for Bearing Diagnostics July 14, 2026 14 min readSignal Processing Filtering Python
CEEMDAN and the Marginal Hilbert Spectrum: Solving EEMD's Reconstruction Error and Mode Splitting, with Bearing Fault Diagnosis July 14, 2026 11 min readSignal Processing Mode Decomposition EMD CEEMDAN Python Anomaly Detection
12 Recommended Books for Learning Signal Processing, Machine Learning, and Control in Python (2026, by Level) July 11, 2026 2 min read信号処理 機械学習 読書 Python
Nyquist Plot, Root Locus, and Stability Margins in Python: Evaluating Closed-Loop Stability with Gain and Phase Margins July 11, 2026 10 min read制御 信号処理 周波数解析 Python
Partial Autocorrelation (PACF) and AR Model Order Identification: Yule-Walker and Levinson-Durbin in Python July 10, 2026 22 min readStatistics Python
MDCT (Modified Discrete Cosine Transform) and Filter Banks: TDAC, Perfect Reconstruction Theory, and Python Implementation July 5, 2026 19 min readSignal Processing Fourier Transform Python
Digital Signatures in Python: ECDSA vs EdDSA vs RSA-PSS, Nonce Reuse Attacks, and RFC 6979 July 4, 2026 22 min readAlgorithm Cryptography Python
Gaussian Process Regression in Practice: Kernel Design and Hyperparameter Optimization with scikit-learn July 4, 2026 21 min readMachine Learning Gaussian Process Bayesian Optimization Python
Kalman Smoother Comparison: RTS vs Fixed-Lag vs Fixed-Point Smoothing in Python (Theory, Latency, and RMSE Benchmarks) July 4, 2026 24 min readMachine Learning Filtering Signal Processing Python
AES and ChaCha20 in Python: Block Cipher Rounds, GF(2^8), AES-GCM vs ChaCha20-Poly1305, and Nonce Pitfalls July 3, 2026 25 min readAlgorithm Cryptography Python
Practical Spectrograms: STFT Window Size, Overlap Choice, and ShortTimeFFT Migration in SciPy July 3, 2026 19 min readSignal Processing Python
Elliptic Curve Cryptography (ECC) in Python: Point Addition over Finite Fields, ECDLP, ECDH, ECDSA, and X25519 July 2, 2026 18 min readAlgorithm Cryptography Python
Multirate Signal Processing in Python: Decimation, Interpolation, and Polyphase Filters July 2, 2026 20 min readSignal Processing Python
Diffie-Hellman Key Exchange in Depth: Discrete Log, Safe Primes, MITM, and X25519 in Python June 14, 2026 16 min readAlgorithm Cryptography Python
Time Series Forecasting with Transformers in PyTorch: Attention and Positional Encoding Explained June 14, 2026 19 min readTransformer Time Series Attention Deep Learning Machine Learning PyTorch Python
Cryptography Roadmap: Classical, Symmetric, RSA, Diffie-Hellman, Elliptic Curves, Hashing, Signatures, and TLS in Python June 14, 2026 25 min readCryptography Python Learning Roadmap RSA Public Key Cryptography Elliptic Curve Cryptography Diffie-Hellman Hash Digital Signature
Discrete Signal Processing Fundamentals Roadmap: Sampling, Interpolation, DFT, Z-Transform, and Autocorrelation June 13, 2026 19 min readSignal Processing DSP Python Learning Roadmap Sampling Theorem DFT Z-Transform
Mode Decomposition with EMD, VMD, and SSA: Python Implementation and Comparison for Non-Stationary Signals May 28, 2026 22 min readSignal Processing Mode Decomposition EMD VMD SSA Python Time-Frequency Analysis
Digital Signal Processing and Machine Learning Roadmap: 5-Hub Learning Path with scipy.signal/numpy.fft/pywt/sklearn May 28, 2026 14 min readSignal Processing Machine Learning Learning Roadmap Python Filter Design Time-Frequency
Machine Learning Hub for Time-Series Forecasting, Classification, and Anomaly Detection in Python: When to Use k-means/GMM, Ensembles, LSTM, and Kalman Filters May 25, 2026 16 min readMachine Learning Time Series Clustering Ensemble Learning LSTM Anomaly Detection Python
Time-Frequency Analysis Guide: Choosing FFT, STFT, Wavelet, and Hilbert Transform with Python May 24, 2026 17 min readFFT STFT Wavelet Hilbert Python spectrogram
Digital Filter Design Guide: Selection, Comparison, and Python Implementation Hub May 22, 2026 16 min readFiltering Signal Processing Python Filter Design
Monte Carlo Optimization (CEM/SA/GA/MPPI/PSO): Fundamentals, Comparison, and Python Implementation May 22, 2026 14 min readOptimization Monte Carlo Python Signal Processing Machine Learning
Wavelet Packet Transform and Best Basis Selection: High-Resolution Time-Frequency Analysis with Python Implementation May 22, 2026 17 min readWavelet Signal Processing Time-Frequency Analysis Python
Bode Plot: Reading and Creating Frequency Response Diagrams with Python Implementation May 21, 2026 20 min readFilter Design Signal Processing Frequency Analysis Python
Linear Predictive Coding (LPC): Theory and Python Implementation May 6, 2026 18 min readSignal Processing Python Speech Processing
DTFT vs DFT vs FFT: Definitions, Relationships, and Python Implementation May 5, 2026 13 min readSignal Processing DSP Python
Convolution and Correlation Fundamentals: Theory, Convolution Theorem, and Python Implementation May 2, 2026 21 min readSignal Processing Python Convolution Correlation
Gaussian Process Regression: Fundamentals and Python Implementation May 2, 2026 21 min readMachine Learning Bayesian Optimization Python Gaussian Process
Particle Swarm Optimization (PSO): Math and Python Implementation with Inertia Weight, Cognitive and Social Coefficients May 1, 2026 20 min readOptimization Python Metaheuristics
Adaptive Filters: LMS and NLMS Algorithms — Theory and Python Implementation May 1, 2026 19 min readSignal Processing Python Adaptive Filter
Signal Reconstruction and Interpolation: Sinc, Linear, and Spline in Python April 30, 2026 19 min readSignal Processing Python
Discrete Cosine Transform (DCT): Theory, Fast Computation, and JPEG/Audio Compression April 30, 2026 22 min readSignal Processing Python Data Compression
Independent Component Analysis (ICA): Blind Source Separation with Python April 30, 2026 21 min readSignal Processing Machine Learning Python
Z-Transform and Digital Filter Design: Poles, Zeros, and Stability with Python — Transfer Function H(z) Worked Examples in scipy April 30, 2026 21 min readSignal Processing Filtering Python
Nyquist-Shannon Sampling Theorem and Aliasing: A Complete Python Guide April 30, 2026 24 min readSignal Processing Python
Phase Spectrum and Group Delay: Theory and Python Implementation April 30, 2026 23 min readSignal Processing Filtering Python
Autocorrelation and Cross-Correlation: Theory and Python Implementation April 29, 2026 23 min readSignal Processing Python Time Series
Cepstrum Analysis: Theory and Python Implementation April 29, 2026 19 min readSignal Processing Python Speech Processing
Short-Time Fourier Transform (STFT): Theory and Python Implementation April 29, 2026 15 min readSignal Processing Python
scipy.signal.hilbert in Python: Envelope Detection, AM/FM Demodulation, Bearing Fault Diagnostics March 18, 2026 19 min readSignal Processing Filtering Python
LSTM for Time Series Forecasting: Theory and Python Implementation March 17, 2026 21 min readPython Machine Learning Statistics
Bessel Filter Design Principles and Python Implementation — Flat Group Delay and Pulse Preservation with scipy.signal.bessel March 16, 2026 13 min readFiltering Signal Processing Python
Elliptic Filter (Cauer Filter): Design Principles and Python Implementation March 15, 2026 16 min readFilter Design Signal Processing Python
Chebyshev Filter Design: Theory and Python Implementation March 14, 2026 18 min readSignal Processing Python Algorithm
Introduction to Probabilistic Data Structures: Bloom Filter and HyperLogLog in Python March 13, 2026 21 min readAlgorithm Python Data Structure
Complementary Filter Theory and Python Implementation: Gyroscope and Accelerometer Sensor Fusion March 13, 2026 19 min readFiltering Signal Processing Python
Highpass Filter Design: Theory and Python Implementation March 13, 2026 16 min readSignal Processing Python Algorithm
Bandpass Filter Design: Theory and Python Implementation March 12, 2026 17 min readSignal Processing Python Algorithm
Next.js App Router + Prisma Practical Patterns: Type-Safe Database Operations March 11, 2026 11 min readNext.js Prisma TypeScript Web Development
Efficient CSV File Processing in Python: csv, pandas, and polars Compared March 11, 2026 20 min readPython Data Processing
Median Filter Theory and Python Implementation: Non-Linear Filter for Impulse Noise Removal March 11, 2026 29 min readFiltering Signal Processing
Savitzky-Golay Filter: Theory and Python Implementation March 10, 2026 23 min readFiltering Signal Processing
Adaptive Filters (LMS/RLS): Theory and Python Implementation March 10, 2026 18 min readFiltering Signal Processing
CalcBox - 61+ Free Online Calculators for Everyday Life March 6, 2026 15 min readWeb App Calculator Tools Python
DevToolBox - 85+ Free Online Developer Tools March 6, 2026 11 min readProgramming Developer Tools Security
Understanding Self-Attention from Scratch: Math and Python Implementation February 28, 2026 14 min readDeep Learning Machine Learning Python
Notch Filter Design and Python Implementation: Removing Power Line Noise February 28, 2026 17 min readSignal Processing Filtering Python
Time-Series Anomaly Detection: From Statistical Methods to Kalman Filter in Python February 28, 2026 16 min readMachine Learning Filtering Python Signal Processing
Window Functions and Power Spectral Density (PSD): Theory and Python Implementation February 28, 2026 18 min readSignal Processing Python
Support Vector Machines (SVM): Margin Maximization, Deriving the KKT Conditions and Dual Problem, and Python Implementation February 26, 2026 13 min readMachine Learning Python Algorithm
ARIMA and SARIMA Theory and Python Implementation: statsmodels.tsa.arima.model with ACF/PACF for Time-Series Forecasting February 26, 2026 18 min readStatistics Python Data Visualization
Markov Chain Monte Carlo (MCMC): Metropolis-Hastings and Gibbs Sampling February 26, 2026 16 min readBayesian Statistics Monte Carlo Python
From SGD to Adam: Evolution of Gradient-Based Optimization February 26, 2026 16 min readMachine Learning Optimization Python
k-means and GMM (Gaussian Mixture Model) Theory, Comparison, and Python Implementation: sklearn.cluster.KMeans / sklearn.mixture.GaussianMixture / EM algorithm February 26, 2026 19 min readMachine Learning Python Algorithm
Ensemble Learning: From Decision Trees to Random Forest and Gradient Boosting February 26, 2026 14 min readMachine Learning Python Algorithm
Introduction to Wavelet Transform: Time-Frequency Analysis in Python (PyWavelets / pywt) February 26, 2026 15 min readSignal Processing Python Data Visualization
Wiener Filter: Optimal Linear Filtering Theory and Python Implementation — SNR-Based Noise Reduction Design Example February 26, 2026 17 min readFiltering Python Signal Processing
Zero Trust Architecture: Principles, Components, and Implementation February 26, 2026 13 min readSecurity Network
Introduction to Asynchronous Programming with Python asyncio February 26, 2026 14 min readPython Async Programming
Unscented Kalman Filter (UKF): Nonlinear State Estimation Theory and Python Implementation February 26, 2026 19 min readFiltering Python Algorithm
Python Regular Expressions: Practical Guide from Basics to Performance Optimization and ReDoS Internals February 26, 2026 11 min readPython
Simulated Annealing: Theory and Python Implementation February 26, 2026 22 min readOptimization Algorithm Python
Butterworth Filter Design: Theory and Python Implementation February 26, 2026 11 min readSignal Processing Python Algorithm
Local Development with Docker Compose: MySQL, Redis, and MinIO February 26, 2026 13 min readDocker Database DevOps
OAuth 2.0 and OpenID Connect: Fundamentals of Authorization and Authentication February 26, 2026 18 min readSecurity Authentication Web
Genetic Algorithms: Fundamentals and Python Implementation February 26, 2026 18 min readOptimization Algorithm Python
FIR vs IIR Filters: Characteristics, Design, and Python Implementation February 26, 2026 17 min readSignal Processing Python Algorithm
RSA Encryption Theory, Key Generation, Encryption, and Decryption in Python (pow, math.gcd, extended Euclidean, Miller-Rabin) February 25, 2026 29 min readAlgorithm Cryptography Python
Fast Fourier Transform (FFT): Theory and Python Implementation with scipy.fft and numpy.fft February 25, 2026 12 min readSignal Processing Python Algorithm
Moving Average Filters Compared: SMA, WMA, and EMA in Python February 25, 2026 18 min readFiltering Signal Processing Python
Extended Kalman Filter (EKF): Theory and Python Implementation February 24, 2026 24 min readMachine Learning Filtering Python
Kalman Filter: Theory and Python Implementation February 24, 2026 20 min readMachine Learning Filtering Python
Security Certification Comparison: CISSP vs Japan's Registered Information Security Specialist February 23, 2026 3 min readSecurity Certification
Kalman Smoother (Rauch-Tung-Striebel / RTS): Forward-Backward Recursion and Python Implementation (numpy.linalg.inv) February 23, 2026 22 min readMachine Learning Filtering Signal Processing Python
Python Progress Bars: tqdm.tqdm, tqdm.notebook, tqdm.auto, tqdm.pandas, and a From-Scratch Implementation February 23, 2026 19 min readPython Programming Tips
Matplotlib Practical Tips: Publication-Quality Figures in Python (plt.rcParams, savefig, colormap, subplots, tight_layout) February 23, 2026 17 min readPython Matplotlib Data Visualization
Particle Filter Python Implementation: Comparing Resampling Methods February 23, 2026 22 min readMachine Learning Filtering Monte Carlo Method Python
Low-Pass Filter Design and Comparison: Moving Average, Butterworth, and Chebyshev February 23, 2026 19 min readFiltering Signal Processing Python
Bayesian Optimization: Fundamentals and Python Implementation February 23, 2026 14 min readMachine Learning Optimization Bayesian Statistics Python
MPPI (Model Predictive Path Integral): A Unified View with the Cross-Entropy Method February 15, 2026 24 min readMachine Learning Optimization Monte Carlo Method Control Python
Cubature Kalman Filter (CKF): Theory and Python Implementation February 15, 2026 25 min readMachine Learning Filtering Python
Resolving Timezone Mismatch Issues Between Prisma and MySQL January 25, 2026 14 min readPrisma MySQL Timezone JST Development
Shell Script to Detect Homebrew Packages with No Dependents October 28, 2024 1 min readShell Shell Script macOS Tips
Reading Notes: 'OSINT Practical Guide' - Fundamentals of Open Source Intelligence August 29, 2024 2 min readSecurity
Comparing Major Security Models: Biba, Clark-Wilson, Brewer-Nash, and Bell-LaPadula June 16, 2024 2 min readSecurity
CISSP Security Governance Prep: Untangling COBIT, ITIL, NIST, and Other Frequently Tested Frameworks June 6, 2024 11 min readSecurity Certification
Transaction Isolation Levels and the Data Inconsistencies They Prevent May 18, 2024 15 min readDB Database Transaction PostgreSQL
Handling Namespace Conflicts When Running Spark SQL Views in Parallel May 3, 2024 2 min readSpark SQL
How to Pass the Registered Information Security Specialist (RISS) Exam: Self-Study Materials, Techniques, and Registration May 3, 2024 4 min readSecurity Certification
Integrating TypeScript and React into a Hugo Theme December 18, 2023 5 min readHugo TypeScript React Web Development
Shell Script to Batch Convert Excel to CSV: Using the xlsx2csv Command, with an External-Command Startup Cost Benchmark December 12, 2023 7 min readShell Script Excel CSV
Generating Prometheus Metrics from Logs with mtail November 24, 2023 5 min readMonitoring Prometheus Logging
Technical Challenges of Sharing prom-client Metrics Between Next.js App Router and Pages Router November 24, 2023 12 min readJavaScript Next.js Prometheus
Diffie-Hellman Key Exchange Protocol: Theory and Python Implementation September 6, 2023 18 min readAlgorithm Cryptography Python
DS201 Study Notes: Using the Cassandra Python Driver May 20, 2023 2 min readCassandra Python DataStax
DS201 Study Notes: Basics of Cassandra Query Language (CQL) May 16, 2023 2 min readCassandra CQL DataStax
How to Use Vim: Mode Switching, Save/Quit, Movement & Editing Commands, and Recommended Plugins December 30, 2022 4 min readVim Editor
JavaScript Asynchronous Processing: From Callbacks to Promise and Async/Await December 29, 2022 16 min readJavaScript Asynchronous Processing
Building a React/TypeScript Development Environment with Webpack and Babel November 11, 2022 14 min readJavaScript React TypeScript Webpack Babel
Building a Simple JSON Mock Server with Python July 16, 2022 11 min readPython Web Development Testing
Multi-Hop SSH via a Bastion Host: The Complete Guide to ProxyJump, ProxyCommand, and ~/.ssh/config July 16, 2022 7 min readLinux SSH Networking
Frequency Characteristics of the Exponential Moving Average Filter February 6, 2022 10 min readFiltering Signal Processing
Where Are Linux Logs? Key /var/log Files and Viewing Them with last, tail, and grep December 30, 2021 2 min readLinux Logs
Closed-Form Derivation of Cross-Entropy Between Gaussian Distributions December 9, 2021 10 min readMachine Learning Information Theory Statistics
How SSH Public Key Authentication Works: From Key Pair Generation to authorized_keys December 3, 2021 4 min readLinux SSH Security
Linux Network Connectivity Commands: ping, traceroute, ss, and tcpdump Explained November 30, 2021 4 min readLinux Networking Troubleshooting
Networking Fundamentals: TCP/IP Model, IP Addresses, and Port Numbers Explained November 22, 2021 4 min readLinux Networking
Linux User and Group Management Commands: useradd, usermod, and groupadd Explained November 21, 2021 2 min readLinux Commands
Object-Oriented Programming: Core Concepts and Java Implementation November 12, 2021 2 min readJava Programming
Reinforcement Learning for ROBOTIS OP3 Walking: ROS Package Implementation November 2, 2021 11 min readReinforcement Learning ROS Robotics
How to Sync Google Calendar Sub-Calendars to Apple Devices September 12, 2021 2 min readGoogle Apple Calendar
How to Build an AirPlay Receiver on Raspberry Pi Using RPiPlay August 5, 2021 3 min readRaspberry Pi AirPlay Linux
Adaptive Filter Theory and Applications in Digital Signal Processing July 30, 2021 17 min readFiltering Signal Processing
Creating 3D Animations (GIFs) with Python Matplotlib June 30, 2021 14 min readPython Matplotlib Data Visualization
Moments in Statistics: Characterizing Probability Distributions May 27, 2021 14 min readStatistics Machine Learning Python
Python: Overwrite Print Output on the Same Line (\r and ANSI Escape Codes) April 16, 2021 13 min readPython
Binary Conversion and Bitwise Operations in Python: Two's Complement, Overflow, and Shifts March 29, 2021 13 min readPython Programming
Cross-Entropy Method: A Practical Monte Carlo Optimization Technique March 29, 2021 20 min readMachine Learning Optimization Monte Carlo Method Python
Key Algorithms in Deep Reinforcement Learning March 22, 2021 3 min readReinforcement Learning Deep Learning
Reinforcement Learning with Neural Networks March 22, 2021 3 min readReinforcement Learning Deep Learning
Reinforcement Learning Basics: Markov Decision Processes and the Bellman Equations March 18, 2021 14 min readReinforcement Learning Dynamic Programming Python
Variational Autoencoder (VAE) March 18, 2021 12 min readBayesian Statistics Machine Learning Deep Learning Python
The EM Algorithm (2): Evidence Lower Bound and KL Divergence March 17, 2021 1 min readBayesian Statistics Machine Learning
The Binomial Distribution and Related Distributions March 16, 2021 2 min readStatistics Machine Learning
Maximum Likelihood Estimation for the Normal Distribution March 16, 2021 3 min readStatistics Machine Learning
NumPy vs PyTorch dtype Pitfalls: Memory Sharing, Integer dtypes, and float16 Precision Loss February 15, 2021 10 min readPyTorch NumPy Python
Building a Free Blog with Markdown Using GitHub Pages and Hugo February 4, 2021 11 min readOther Hugo GitHub
Unscented Transformation: Theory and Python Implementation with Sigma Points (numpy.linalg.cholesky) January 25, 2021 18 min readMachine Learning Filtering Python
Training Neural Networks with Genetic Algorithms in Python January 9, 2021 19 min readSwarm Intelligence Machine Learning Python
Bayesian Linear Regression: From Least Squares to Bayesian Estimation January 8, 2021 14 min readBayesian Statistics Machine Learning Python
Fundamentals of Information Theory: From Entropy to Mutual Information (PRML 1.6) January 7, 2021 19 min readMachine Learning Information Theory
The Mathematics of Two-Swarm Cooperative PSO (TCPSO): Deriving Slave/Master Stability Conditions with Python January 7, 2021 17 min readSwarm Intelligence Optimization Python
Elliptic Curve ElGamal Encryption: Principles and Simplified Python Implementation December 23, 2020 21 min readAlgorithm Cryptography Python
How to Send Experiment Results (Text and Images) to Slack with Python December 23, 2020 11 min readPython Slack
Fast Modular Exponentiation Using Binary Exponentiation in Python December 20, 2020 17 min readAlgorithm Python Cryptography
Euclidean Algorithm and Extended Euclidean Algorithm in Python October 15, 2020 16 min readAlgorithm Mathematics Python