Categories

好记性不如烂笔头，这些笔记只为在我暂时忘记时，帮自己度过难关。我很高兴如果它们也能帮助到你。

• Mathematics
  
  • Montgomery Modular Multiplication
    
  • Hermite and Birkhoff Interpolation
    
  • Elementary Number Theory
    
  • Binary Quadratic Forms
    
  • Markov Decision Process (MDP)
    
  • Polynomial Multiplication (Vector Convolution) and FFT
    
  • Prime Number
    
  • Automatic Differentiation
    
  • Wavelet Transform
    
  • Fourier Series, Fourier Transform, DFT, FFT
    
  • Abstract Algebra
    
  • Linear Transformation
    
  • Statistics Simulation (Monte Carlo Sampling)
    
  • RANSAC (RANdom SAmple Consensus)
    
  • Kalman Filter
    
  • Lagrangian Dual Problem
    
  • KKT conditions
    
  • Unconstrained Optimization (Derivative-based methods)
    
  • Linear Least Squares
    
  • Linear Algebra and Matrix
    
  • Probability Theory
    
  • Calculus
    
• Zero-Knowledge Proof
  
  • Introduction to zk-SNARKs with Examples
    
  • Simulation-Based Security
    
  • Schnorr's Protocol, A ZK Proof for Dlog (Prove You Know Your Private Key)
    
  • Quadratic Arithmetic Program
    
  • zk-SNARK, Pinocchio
    
• Cryptography
  
  • Open Source Threshold Signature Libraries
    
  • Technical Details of Passkey Authentication
    
  • One-Time Password Algorithm (TOTP, HOTP)
    
  • Dilithium Signature
    
  • How does Kyber Encryption Work
    
  • BLS Threshold Signature
    
  • Multiparty Threshold ECDSA (CMP, CGGMP)
    
  • Multiparty Threshold ECDSA (DKLS19)
    
  • Schnorr Multi-Signatures
    
  • GMW (A Generic MPC Protocol)
    
  • Tassa’s Hierarchical Threshold Secret Sharing
    
  • Ring Signature
    
  • Schnorr Threshold Signature (FROST)
    
  • Birthday Attack and Wagner Attack
    
  • KZG Polynomial Commitment
    
  • Cryptographic Accumulator
    
  • Time-Lock Puzzles (Send a Message to the Future)
    
  • Pairing (Weil/Tate/Eta/Ate Pairing)
    
  • Faster Point Multiplication with Endomorphisms Optimization
    
  • Multiparty Threshold ECDSA (GG18)
    
  • Schnorr Threshold Signature (Stinson and Strobl's 2001 paper)
    
  • Oblivious Transfer (OT)
    
  • Garbled Circuit
    
  • Commitment Scheme
    
  • Static Proactive Secret Sharing
    
  • Two-party ECDSA Signing
    
  • Shoup's RSA Threshold Signature
    
  • Shamir's Secret Sharing and Verifiable Secret Sharing (VSS)
    
  • Secure Multi-Party Computation (MPC)
    
  • BLS Curves (BLS12-381) and BLS Signatures
    
  • Paillier Cryptosystem (Additive Homomorphic Cryptosystem)
    
  • EdDSA and Ed25519
    
  • Verifiable Random Function
    
  • OpenSSL Crypto Library
    
  • Elliptic Curve Cryptography (ECC)
    
  • RSA Encryption and Signature Example
    
  • Store and Validate Hashed Password
    
  • Cryptography
    
• Blockchain
  
  • NEAR Raw Tx Breakdown
    
  • NEAR (Blockchain Platform)
    
  • Solana Raw Tx Breakdown
    
  • Solana (Blockchain Platform)
    
  • Building a Bitcoin P2TR Tx by Hand
    
  • How Zcash Transactions Between Shielded Addresses Work
    
  • Taproot
    
  • Pay-to-Contract and Sign-to-Contract Commitment
    
  • Omni Layer
    
  • Lightning Network
    
  • Tendermint
    
  • Building a Bitcoin P2PKH Tx by Hand
    
  • Mnemonic and HD Wallet
    
  • Bitcoin Keys and Addresses
    
  • Bitcoin Transactions
    
  • Hyperledger Fabric
    
  • Bitcoin Mining and Verifying
    
  • Blockchain Basic Principle
    
• Blockchain → Ethereum
  
  • How to Deploy Different Contracts at the Same Address
    
  • EIP-4337 (Account Abstraction Using Alt Mempool)
    
  • Ethereum World State
    
  • Uniswap (Decentralized Exchange)
    
  • Solidity Storage Layout
    
  • Delegatecall and Upgradeable Contract
    
  • Ethereum Tx and Meta Tx
    
  • Solidity
    
  • Ethereum Token
    
  • EVM (Ethereum Virtual Machine)
    
  • Ethereum Smart Contract Development
    
  • Ethereum
    
• Blockchain → EOS
  
  • EOS Network Deployment
    
  • EOS Smart Contract
    
  • EOS (Blockchain)
    
• Parser/Compiler/Emulator
  
  • Writing an emulator (Chip-8)
    
  • Operator-precedence Parser, Pratt Parser
    
  • Regular Expression Implementation
    
  • Just-in-time compilation
    
  • JavaCC
    
  • Tail Recursion Optimization
    
  • ANTLR
    
  • Context-free Grammar, Part II Botton-Up Parsing
    
  • Context-free Grammar, Part I Top-down Parsing
    
• Distributed System
  
  • Bracha's Reliable Broadcast
    
  • Practical Byzantine Fault Tolerance (PBFT)
    
  • Viewstamped Replication
    
  • Kubernetes
    
  • Event-Driven Architecture
    
  • Distributed Tracing
    
  • Active MQ
    
  • ELK Stack (Log Management Platform)
    
  • Etcd
    
  • Kademlia (DHT)
    
  • Chord (Consistent Hashing, DHT)
    
  • IPFS (InterPlanetary File System)
    
  • gRPC
    
  • Gossip
    
  • Raft
    
  • ZooKeeper
    
  • Byzantine Generals Problem, BFT Algorithm
    
  • Paxos Consensus Algorithm
    
  • Replication in Databases and Distributed Systems
    
  • Distributed transaction, without XA
    
  • Tuxedo Middleware
    
• Database
  
  • Understanding Query Execution in RDBMS
    
  • LevelDB
    
  • RESP (Redis Serialization Protocol)
    
  • Redis Stream
    
  • MySQL InnoDB Locking and Transaction Model
    
  • MongoDB
    
  • MySQL
    
  • Redis
    
  • Derby Database
    
  • LDAP
    
  • IBM IMS Overview
    
  • SQLite
    
  • Transaction
    
  • Oracle Database
    
  • Database Memo
    
  • DB2 LUW
    
  • Normal Forms in RDBMS
    
• Algorithm and Data Structure
  
  • Probabilistic Data Structures
    
  • A* Search Algorithm
    
  • Graph Algorithms
    
  • Sorting Algorithms
    
  • Backtracking (Depth First Search)
    
  • Data Structure for Strings
    
  • Data Structure
    
  • Greedy Algorithm
    
  • Dynamic Programming
    
  • String Searching Algorithms
    
• Network
  
  • HTTP/2
    
  • SSL/TLS
    
  • libevent, an event notification library
    
  • Reactor and Proactor Pattern
    
  • Socket, Network programming
    
  • Network Memo
    
• Unix/Linux
  
  • eBPF and BCC
    
  • Linux Buddy and Slab Allocator
    
  • LVS, IPVS
    
  • Linux Virtual Networking Devices
    
  • RCU (Read-Copy Update)
    
  • Differneces between Unix-like systems
    
  • Signals
    
  • Shared Libraries
    
  • Process
    
  • Threads
    
  • System call
    
  • Interprocess Communication
    
• Design and Implementation of the Linux kernel
  
  • Linux Kernel - The Page Cache and Page Writeback
    
  • Linux Kernel - Process Address Space
    
  • Linux Kernel - Virtual Filesystem
    
  • Linux Kernel - The Block I/O Layer
    
  • Linux Kernel - Physical Memory Management
    
  • Linux Kernel - Bottom Halves and Deferring Work
    
  • Linux Kernel - Interrupts, Top Halves
    
  • Linux Kernel - Process Scheduler
    
  • Linux Kernel - Process Management
    
• Operating System
  
  • Process Synchronization in Operating System
    
  • Memory Management in Operating System
    
• Golang
  
  • Golang Scheduler
    
  • Golang GC
    
  • Golang Debugging with GDB
    
  • Goroutine Stack
    
  • goworker (Go-based background worker)
    
  • Go Concurrency
    
  • Golang
    
• Rust
  
  • Some Rust Traits
    
  • Rust Macros
    
  • Rust Iterator
    
  • Rust Concurrency
    
  • Rust
    
• C/C++
  
  • How to Cross Compile C Program for ARM
    
  • Dangerous Unsigned Integer
    
  • C++20, Concept And Range
    
  • C++ Concurrency
    
  • C++11 Atomic Types and Memory Model
    
  • Boost Asio
    
  • Name Mangling
    
  • C++
    
  • C
    
• Python
  
  • Python Concurrency
    
  • Pandas (Python Data Analysis Library)
    
  • Matplotlib
    
  • NumPy
    
  • Python
    
• Java
  
  • Elasticsearch (ES)
    
  • Apache Lucene
    
  • MyBatis (Java Persistence Framework)
    
  • Netty
    
  • Java Class Loader
    
  • JVM Memory Analysis
    
  • FreeMarker (Template Engine)
    
  • JasperReport
    
  • Testng
    
  • PMD (Java Source Code Analyzer)
    
  • Apache Ant
    
  • Apache Commons IO
    
  • RESTful in Java
    
  • Gradle
    
  • File Lock in Java
    
  • Apache Maven
    
  • WebLogic Application Server
    
  • JPA (Java Persistence API)
    
  • Servlet
    
  • Spring framework
    
  • Java NIO
    
  • Java Memory Model
    
  • JVM (Java Virtual Machine)
    
  • Concurrency in Java
    
  • Java
    
• Program Language
  
  • Kotlin
    
  • WebAssembly
    
  • Scala
    
  • Dart
    
  • Lua
    
  • Tcl
    
  • TypeScript
    
  • PHP
    
  • Rust
    
  • Swift
    
  • Objective-C
    
  • Protocol Buffers
    
  • XPath (XML Path Language)
    
  • YAML
    
  • Haskell
    
  • R
    
  • OCaml
    
  • JavaScript
    
  • Golang
    
  • Python
    
  • Type Systems for Programming Languages
    
  • COBOL
    
  • Awk
    
  • Sed
    
  • Perl
    
  • Emacs Lisp
    
  • Common Lisp
    
  • Java
    
  • Regular Expressions
    
  • Shell
    
  • C++
    
  • Assembly (i386, x86_64)
    
  • C
    
• Machine Learning
  
  • RNN, LSTM
    
  • Reinforcement Learning
    
  • Stacking
    
  • Conditional Random Field
    
  • DBSCAN (Density-Based Spatial Clustering of Applications with Noise)
    
  • GMM (Gaussian Mixture Model)
    
  • K-means
    
  • Performance Measures for Machine Learning
    
  • TensorFlow
    
  • Convolutional Neural Network
    
  • Bagging and Random Forest
    
  • GBDT (Gradient Boosting Decision Tree)
    
  • AdaBoost (Adaptive Boosting)
    
  • Principal Component Analysis (PCA)
    
  • Back Propagation Neural Networks
    
  • Neural Network
    
  • k-NN (k-Nearest Neighbor)
    
  • Decision Tree
    
  • Expectation–maximization algorithm
    
  • Hidden Markov Model
    
  • Support Vector Machine
    
  • Logistic Regression
    
  • Kernel Method
    
  • Perceptron
    
  • Naive Bayes Classifier
    
• Image Processing
  
  • Local Invariant Feature Detectors
    
  • OpenCV
    
  • Digital Image Processing Basics
    
• Natural Language Processing
  
  • Term Frequency–Inverse Document Frequency (TF-IDF)
    
  • Word Embedding
    
• Big Data
  
  • Introduction to Apache Flink
    
  • Spark
    
  • Hadoop
    
• Tool
  
  • Image Magick
    
  • perf (Performance Analysis Tool)
    
  • Getting started with Prometheus
    
  • fcgiwrap
    
  • systemd
    
  • Postfix (An alternative to Sendmail)
    
  • Shadowsocks
    
  • SSH Tunnel (Port Forwarding)
    
  • Tesseract (Open Source OCR)
    
  • OpenSSL Command Line Tool
    
  • PDF Tools
    
  • Apache JMeter (Performance Testing)
    
  • logrotate
    
  • vmstat (Virtual Memory Statistics)
    
  • sysstat (sar, iostat)
    
  • Vagrant
    
  • Ansible
    
  • Docker
    
  • free
    
  • Windows versus Linux commands
    
  • Electric Fence (Memory Debugger)
    
  • lsof
    
  • PGF/TikZ and Pgfplots
    
  • Valgrind
    
  • OpenGrok (Cross Reference Engine)
    
  • Cscope
    
  • CMake
    
  • Gnuplot
    
  • Git
    
  • Gcc
    
  • GNU Make
    
  • Org mode
    
  • Tool readelf and ELF format
    
  • CVS
    
  • Emacs
    
  • Package manager (APT, YUM, DNF)
    
  • GDB
    
  • GIMP
    
  • LaTeX
    
  • curl
    
  • tcpdump
    
  • netcat (nc)
    
  • Vim
    
  • Unix-like Tools
    
  • Graphviz
    
• HowTos
  
  • How to Create a Swap File
    
  • How to Add User to Sudoers
    
  • How to Compress and Decompress Files
    
  • How to Change File Encoding
    
  • How to View a File in Hex
    
• Web
  
  • Deploy Swagger UI in Nginx
    
  • Apache HTTP Server
    
  • Express
    
  • nginx
    
  • Selenium
    
  • jQuery
    
  • JSON and its Query
    
  • Session-based (Cookie-Based) Authentication
    
  • JavaScript Event Loop, Callback, Promise, Generator, async/await
    
  • JavaScript Dev Toolkit
    
  • HTML Basic
    
  • A Whirlwind Tour of CSS
    
• Probabilistic Robotics
  
  • Robot Path and Motion Planning
    
  • SLAM (Simultaneous Localization and Mapping)
    
  • Robot Mapping
    
  • Robot Localization
    
  • Sensor Model (Measurement Model)
    
  • Motion Model
    
  • Particle Filter
    
  • Kalman Filter (Bayesian Derivation)
    
  • Bayes Filter
    
• ROS
  
  • ROS Navigation Stack
    
  • ROS 3D Modeling and Simulation
    
  • ROS tf package
    
  • ROS actionlib
    
  • ROS (Robot Operating System) Tutorials
    
• Mac
  
  • Mac Tips
    
• Win
  
  • Windows Tips
    
  • Batch Script
    
• Uncategorized
  
  • Bluetooth Low Energy (BLE)
    
  • Parallel Computing (CUDA Programming)
    
  • TOML
    
  • Flutter
    
  • Floating-point Number
    
  • Android
    
  • Unicode, UTF-8
    
  • Base64
    
  • Point Cloud Library (PCL)
    
  • Gazebo (Robot Simulator)
    
  • Design Principles and Design Patterns
    
  • Hard Link in File System