2022
88 posts from 2022

Designing A Consistent Hashing With Load Bounds: Google’S Maglev Hasher And Its Use In Load Balancing
2022-12-31A comprehensive technical exploration of designing a consistent hashing with load bounds: google’s maglev hasher and its use in load balancing, covering key concepts, practical implementations, and real-world applications.

The Theory Of Capacity Aware Load Balancing: Power Of Two Random Choices Vs. Join Shortest Queue
2022-12-30A comprehensive technical exploration of the theory of capacity aware load balancing: power of two random choices vs. join shortest queue, covering key concepts, practical implementations, and real-world applications.

Building A Distributed Monitor For System Health: Heartbeat, Failure Detection, And Log Collection With Kafka
2022-12-26A comprehensive technical exploration of building a distributed monitor for system health: heartbeat, failure detection, and log collection with kafka, covering key concepts, practical implementations, and real-world applications.

Multi-Party Computation: From Yao's Garbled Circuits to the SPDZ Line
2022-12-26A deep exploration of secure multi-party computation, tracing the intellectual arc from Yao's millionaires' problem through the SPDZ practical framework, with full protocol detail and modern applications.

Implementing A Lock Free Memory Pool With Epoch Based Reclamation For Hazard Pointer Mitigation
2022-12-14A comprehensive technical exploration of implementing a lock free memory pool with epoch based reclamation for hazard pointer mitigation, covering key concepts, practical implementations, and real-world applications.

The Performance Of Gpu Stream Assisted Asynchronous Multiplications For Deep Neural Networks
2022-12-09A comprehensive technical exploration of the performance of gpu stream assisted asynchronous multiplications for deep neural networks, covering key concepts, practical implementations, and real-world applications.

Garbage Collection Algorithms: From Mark-and-Sweep to ZGC
2022-11-22A comprehensive exploration of garbage collection algorithms, from classic mark-and-sweep to modern concurrent collectors like G1, Shenandoah, and ZGC. Learn how automatic memory management works and the trade-offs that shape collector design.

A Deep Dive Into The Cuda Thread Hierarchy And Memory Model: Global, Shared, Local, And Uniform
2022-11-21A comprehensive technical exploration of a deep dive into the cuda thread hierarchy and memory model: global, shared, local, and uniform, covering key concepts, practical implementations, and real-world applications.

Designing A Task Based Parallelism Runtime: Openmp Tasks, Dependencies, And Scheduling Algorithm
2022-11-12A comprehensive technical exploration of designing a task based parallelism runtime: openmp tasks, dependencies, and scheduling algorithm, covering key concepts, practical implementations, and real-world applications.

The Complexity Of Markov Decision Processes: Value Iteration Vs. Policy Iteration With Optimistic Initialization
2022-11-10A comprehensive technical exploration of the complexity of markov decision processes: value iteration vs. policy iteration with optimistic initialization, covering key concepts, practical implementations, and real-world applications.

Analytic Combinatorics: The Symbolic Method, Generating Functions, and Average-Case Algorithm Analysis
2022-11-09A rigorous exploration of analytic combinatorics—the symbolic method for deriving generating functions, singularity analysis, saddle-point asymptotics, and applications to average-case analysis of algorithms and random structures.

From Lru To Arc: A Technical Survey Of Cache Eviction Policies And Their Performance In Web Scale Distributed Caches
2022-10-30A comprehensive technical exploration of cache eviction policies, from LRU to ARC, covering their performance in web-scale distributed caches, key concepts, practical implementations, and real-world applications.

A Rigorous Analysis Of The Texas Hold’Em Poker Endgame: Nash Equilibrium And Cfr+ (Counterfactual Regret Minimization)
2022-10-28A comprehensive technical exploration of a rigorous analysis of the texas hold’em poker endgame: nash equilibrium and cfr+ (counterfactual regret minimization), covering key concepts, practical implementations, and real-world applications.

Implementing A Persistent Memory Log With Concurrency And Fault Recovery Across System Crashes
2022-10-26A comprehensive technical exploration of implementing a persistent memory log with concurrency and fault recovery across system crashes, covering key concepts, practical implementations, and real-world applications.

Additive Combinatorics: Szemerédi's Theorem, Sumset Inequalities, and Applications in Property Testing
2022-10-25A rigorous exploration of additive combinatorics—Szemerédi's theorem on arithmetic progressions, Plünnecke-Ruzsa inequalities, the Balog-Szemerédi-Gowers theorem, and their applications in property testing and pseudorandomness.

The Algorithm Of The Buddy Memory Allocation System: Binary Trees And O(1) Free Block Coalescing
2022-10-20A comprehensive technical exploration of the algorithm of the buddy memory allocation system: binary trees and o(1) free block coalescing, covering key concepts, practical implementations, and real-world applications.

Building A Custom Memory Allocator With Size Classes, Thread Caching, And Segregated Lists (Tcmalloc)
2022-10-17A comprehensive technical exploration of building a custom memory allocator with size classes, thread caching, and segregated lists (tcmalloc), covering key concepts, practical implementations, and real-world applications.

Designing A Buffer Pool With Prefetching And Replacement Policies: Statistical Lru, Fbr, And Lirs
2022-10-17A comprehensive technical exploration of designing a buffer pool with prefetching and replacement policies: statistical lru, fbr, and lirs, covering key concepts, practical implementations, and real-world applications.

Combinatorial Designs and Coding Theory: Block Designs, Steiner Systems, and Finite Geometry
2022-10-10An exploration of combinatorial design theory—block designs, Steiner systems, finite projective planes—and their deep connections to error-correcting codes and experimental design.

The Performance Of Memory Mapping Vs. Traditional Read/Write For Database Files On Modern Nvme Drives
2022-10-10A comprehensive technical exploration of the performance of memory mapping vs. traditional read/write for database files on modern nvme drives, covering key concepts, practical implementations, and real-world applications.

A Deep Dive Into The Sha 3 Sponge Construction: Keccak F Permutation, Padding, And Security Margins
2022-09-26A comprehensive technical exploration of a deep dive into the sha 3 sponge construction: keccak f permutation, padding, and security margins, covering key concepts, practical implementations, and real-world applications.

Tropical Geometry: Algorithmic Applications in Optimization, Phylogenetics, and Deep Learning
2022-09-15A rigorous exploration of tropical geometry—the min-plus semiring, tropical varieties, and the unexpected connections between algebraic geometry and combinatorial algorithms.

Implementing A Fully Homomorphic Encryption Scheme With Boosted Bootstrapping (Fhew/Tfhe)
2022-09-11A comprehensive technical exploration of implementing a fully homomorphic encryption scheme with boosted bootstrapping (fhew/tfhe), covering key concepts, practical implementations, and real-world applications.

Timeouts, Retries, and Idempotency Keys: A Practical Guide
2022-09-08Make your distributed calls safe under partial failure. How to budget timeouts, avoid retry storms, and use idempotency keys without shooting yourself in the foot.

Teaching GraphQL to Cache at the Edge
2022-09-03A deep dive into making GraphQL play nicely with edge caches without breaking declarative APIs.

The Complexity Of Lattice Reduction For Lwe: Basis Reduction Algorithms Bkz And G6K
2022-08-31A comprehensive technical exploration of the complexity of lattice reduction for lwe: basis reduction algorithms bkz and g6k, covering key concepts, practical implementations, and real-world applications.

Building A Side Channel Secure Elliptic Curve Scalar Multiplication Using Montgomery Ladder
2022-08-26A comprehensive technical exploration of building a side channel secure elliptic curve scalar multiplication using montgomery ladder, covering key concepts, practical implementations, and real-world applications.

Algebraic Geometry in Computer Science: Gröbner Bases, the Nullstellensatz, and Applications in Cryptography and Coding Theory
2022-08-21A rigorous exploration of how algebraic geometry—Gröbner bases, Hilbert's Nullstellensatz, and elliptic curves—powers modern cryptography, error-correcting codes, and complexity theory.

A Detailed Look At The Openssl Implementation Of Aes: Key Schedule, S Box, And Counter Mode
2022-08-20A comprehensive technical exploration of a detailed look at the openssl implementation of aes: key schedule, s box, and counter mode, covering key concepts, practical implementations, and real-world applications.

Designing A Distributed Sequential Consistency Model With Virtual Synchrony And Views
2022-08-20A comprehensive technical exploration of designing a distributed sequential consistency model with virtual synchrony and views, covering key concepts, practical implementations, and real-world applications.

Designing CRDT-Powered Collaboration Platforms that Stay Consistent
2022-08-17Deep dive into how conflict-free replicated data types underpin realtime editors, whiteboards, and multiplayer apps without sacrificing UX.

The Implementation Of A Multi Leader Replication System: Conflict Avoidance With Linked Lists And Last Writer Wins
2022-08-13A comprehensive technical exploration of the implementation of a multi leader replication system: conflict avoidance with linked lists and last writer wins, covering key concepts, practical implementations, and real-world applications.

A Rigorous Proof Of The Abortable Consensus In A Crash Recovery Model Using Non Blocking Atomic Commit
2022-08-10A comprehensive technical exploration of a rigorous proof of the abortable consensus in a crash recovery model using non blocking atomic commit, covering key concepts, practical implementations, and real-world applications.

Building A Conflict Free Replicated Data Type For Counters And Sets In Riak: Pn Counters, G Sets, And Lww Registers
2022-08-09A comprehensive technical exploration of building a conflict free replicated data type for counters and sets in riak: pn counters, g sets, and lww registers, covering key concepts, practical implementations, and real-world applications.

Designing A Scalable State Machine Replication Library: Multi Paxos With Reconfiguration And Joint Consensus
2022-07-31A comprehensive technical exploration of designing a scalable state machine replication library: multi paxos with reconfiguration and joint consensus, covering key concepts, practical implementations, and real-world applications.

The Performance Of Proof Of Stake Finality: Casper Ffg Vs. Tendermint With Validator Rotation
2022-07-30A comprehensive technical exploration of the performance of proof of stake finality: casper ffg vs. tendermint with validator rotation, covering key concepts, practical implementations, and real-world applications.

A Deep Dive Into The Snowman Consensus Protocol: Dag Based Block Ordering And Avalanche Finality
2022-07-29A comprehensive technical exploration of a deep dive into the snowman consensus protocol: dag based block ordering and avalanche finality, covering key concepts, practical implementations, and real-world applications.

Implementing A Distributed Random Beacon Via Verifiable Delay Functions (Vdf) And Unique Secrets
2022-07-26A comprehensive technical exploration of implementing a distributed random beacon via verifiable delay functions (vdf) and unique secrets, covering key concepts, practical implementations, and real-world applications.

The Complexity Of The Byzantine Agreement Problem With Rounds: Exponential Information Gathering And Recursive Algorithms
2022-07-16A comprehensive technical exploration of the complexity of the byzantine agreement problem with rounds: exponential information gathering and recursive algorithms, covering key concepts, practical implementations, and real-world applications.

CPU Caches and Cache Coherence: The Memory Hierarchy That Makes Modern Computing Fast
2022-07-12A comprehensive exploration of how CPU caches bridge the processor-memory speed gap. Learn about cache architecture, replacement policies, coherence protocols, and how to write cache-friendly code for maximum performance.

Information Geometry: Statistical Manifolds, the Fisher Information Metric, and Natural Gradient Descent
2022-07-12A rigorous journey through information geometry—the Riemannian geometry of statistical models, the Fisher metric as the unique invariant metric, natural gradient, and the dually flat structure of exponential families.

A Formal Verification Of The Ethereum Smart Contract Runtime: Evm Bytecode And Input/Output Properties
2022-07-10A comprehensive technical exploration of a formal verification of the ethereum smart contract runtime: evm bytecode and input/output properties, covering key concepts, practical implementations, and real-world applications.


Building A Blockchain Light Client Using Merklix Trees And Fraud Proofs For Validation
2022-07-04A comprehensive technical exploration of building a blockchain light client using merklix trees and fraud proofs for validation, covering key concepts, practical implementations, and real-world applications.

The Mathematics Of Quantum Key Distribution: Bb84 Protocol, Eavesdropping Detection, And Privacy Amplification
2022-06-19A comprehensive technical exploration of the mathematics of quantum key distribution: bb84 protocol, eavesdropping detection, and privacy amplification, covering key concepts, practical implementations, and real-world applications.

Implementing A Private Information Retrieval (Pir) Scheme With Computational And Information Theoretic Guarantees
2022-06-07A comprehensive technical exploration of implementing a private information retrieval (pir) scheme with computational and information theoretic guarantees, covering key concepts, practical implementations, and real-world applications.

The Performance Of Multi Party Computation Protocols: Garbled Circuits Vs. Secret Sharing For Secure Ml Inference
2022-06-02A comprehensive technical exploration of the performance of multi party computation protocols: garbled circuits vs. secret sharing for secure ml inference, covering key concepts, practical implementations, and real-world applications.

A Deep Dive Into The Signal Protocol: Double Ratchet Algorithm, X3Dh, And Prekey Bundles
2022-05-31A comprehensive technical exploration of a deep dive into the signal protocol: double ratchet algorithm, x3dh, and prekey bundles, covering key concepts, practical implementations, and real-world applications.

Designing A Secure Broadcast Channel Using Public Key Cryptography And Merkle Trees For Key Transparency
2022-05-25A comprehensive technical exploration of designing a secure broadcast channel using public key cryptography and merkle trees for key transparency, covering key concepts, practical implementations, and real-world applications.

The Implementation Of A Digital Signature Algorithm: Ecdsa Vs. Eddsa (Ed25519) In Terms Of Speed And Security
2022-05-21A comprehensive technical exploration of the implementation of a digital signature algorithm: ecdsa vs. eddsa (ed25519) in terms of speed and security, covering key concepts, practical implementations, and real-world applications.

Virtual Memory and Page Tables: How Modern Systems Manage Memory
2022-05-19A comprehensive exploration of virtual memory, page tables, and address translation. Learn how operating systems provide memory isolation, enable overcommitment, and optimize performance with TLBs and huge pages.

Process Scheduling and Context Switching: How Operating Systems Share the CPU
2022-05-18A deep dive into how operating systems decide which process runs next and how they switch between processes. Understand scheduling algorithms, context switches, and the trade-offs that shape system responsiveness.

A Rigorous Analysis Of The Diffie Hellman Key Exchange In The Group Of Prime Field Elliptic Curves
2022-05-04A comprehensive technical exploration of a rigorous analysis of the diffie hellman key exchange in the group of prime field elliptic curves, covering key concepts, practical implementations, and real-world applications.

Building An Orthogonal Range Counting Data Structure With A Kd Tree: Query Complexity And Construction
2022-04-28A comprehensive technical exploration of building an orthogonal range counting data structure with a kd tree: query complexity and construction, covering key concepts, practical implementations, and real-world applications.

The Theory Of Lossy Compression With Jpeg: Dct, Quantization Table, And Huffman Coding For Chroma Subsampling
2022-04-23A comprehensive technical exploration of the theory of lossy compression with jpeg: dct, quantization table, and huffman coding for chroma subsampling, covering key concepts, practical implementations, and real-world applications.

Implementing A Universal Data Compressor Using Arithmetic Coding With Finite Precision And Range Coder
2022-04-22A comprehensive technical exploration of implementing a universal data compressor using arithmetic coding with finite precision and range coder, covering key concepts, practical implementations, and real-world applications.

Software Supply Chain Security: SBOMs, Sigstore, Reproducible Builds, and Attestation
2022-04-19An in-depth guide to securing the software supply chain: SBOMs, provenance, Sigstore, SLSA, reproducible builds, code signing, and operational best practices.

A Deep Dive Into The Boyer Moore String Search Algorithm: Bad Character And Good Suffix Heuristics
2022-04-17A comprehensive technical exploration of a deep dive into the boyer moore string search algorithm: bad character and good suffix heuristics, covering key concepts, practical implementations, and real-world applications.

Designing An Approximate String Matching Algorithm Using Bitap (Shift Or) With Nfa Simulation
2022-04-16A comprehensive technical exploration of designing an approximate string matching algorithm using bitap (shift or) with nfa simulation, covering key concepts, practical implementations, and real-world applications.

Online Learning: Regret Minimization, the Multiplicative Weights Algorithm, and Adversarial Bandits
2022-04-15A rigorous treatment of online learning—regret minimization, multiplicative weights, EXP3 for adversarial bandits, and the deep connections to game theory and boosting.

The Complexity Of The Knuth Morris Pratt String Matching Algorithm: Prefix Function And Border Properties
2022-04-03A comprehensive technical exploration of the complexity of the knuth morris pratt string matching algorithm: prefix function and border properties, covering key concepts, practical implementations, and real-world applications.

Building A Huffman Coding Implementation With Canonical Huffman Trees And Bit Packing
2022-04-02A comprehensive technical exploration of building a huffman coding implementation with canonical huffman trees and bit packing, covering key concepts, practical implementations, and real-world applications.

Statistical Learning Theory: PAC Learning, VC Dimension, and the Bias-Complexity Tradeoff
2022-03-31A rigorous development of statistical learning theory—the PAC framework, VC dimension and Sauer's lemma, the fundamental theorem, Rademacher complexity, and the mathematical limits of learning from data.

A Detailed Analysis Of The Lempel Ziv Welch (Lzw) Compression Algorithm: Dictionary Design And Decoding
2022-03-30A comprehensive technical exploration of a detailed analysis of the lempel ziv welch (lzw) compression algorithm: dictionary design and decoding, covering key concepts, practical implementations, and real-world applications.

The Performance Of Run Length Encoding (Rle) Vs. Burrows Wheeler Transform (Bwt) In Text Compression
2022-03-30A comprehensive technical exploration of the performance of run length encoding (rle) vs. burrows wheeler transform (bwt) in text compression, covering key concepts, practical implementations, and real-world applications.

Implementing A Real Time Anomaly Detection System Using Exponential Weighted Moving Average (Ewma) And Holt Winters
2022-03-28A comprehensive technical exploration of implementing a real time anomaly detection system using exponential weighted moving average (ewma) and holt winters, covering key concepts, practical implementations, and real-world applications.

The Mathematics Of Pairwise Differencing For Time Series: Self Joins And Online Algorithms For Change Detection
2022-03-21A comprehensive technical exploration of the mathematics of pairwise differencing for time series: self joins and online algorithms for change detection, covering key concepts, practical implementations, and real-world applications.

Building A Secure Password Authenticated Key Exchange (Pake) From Oblivious Pseudorandom Functions (Oprf)
2022-03-11A comprehensive technical exploration of building a secure password authenticated key exchange (pake) from oblivious pseudorandom functions (oprf), covering key concepts, practical implementations, and real-world applications.

A Deep Dive Into The Yggdrasil Network: Crypto Based Routing With Dht And Spanning Trees
2022-03-06A comprehensive technical exploration of a deep dive into the yggdrasil network: crypto based routing with dht and spanning trees, covering key concepts, practical implementations, and real-world applications.

The Implementation Of A Distributed Hash Table Using Chord: Leaf Sets, Stabilization, And Finger Table Maintenance
2022-02-21A comprehensive technical exploration of the implementation of a distributed hash table using chord: leaf sets, stabilization, and finger table maintenance, covering key concepts, practical implementations, and real-world applications.

Large Deviations Theory: Cramér's Theorem, Importance Sampling, and Rare Event Simulation
2022-02-13A rigorous exploration of large deviations—the theory of exponentially rare events—from Cramér's theorem to Sanov's theorem, and their application to importance sampling for reliable networks.

Renewal Theory for Computer Science: The Renewal Equation, Key Renewal Theorem, and Applications in Cache Analysis and Failure Recovery
2022-02-12A rigorous journey through renewal theory—the mathematics of recurring events—from the renewal equation and key renewal theorem to applications in garbage collection, cache replacement, and fault-tolerant system analysis.

Stochastic Processes for Computer Science: Poisson, Brownian Motion, Queueing and Reliability
2022-02-12A rigorous treatment of continuous-time stochastic processes—Poisson processes, CTMCs, Brownian motion with the reflection principle—and their applications in queueing theory, reliability engineering, and network performance.

Designing A P2P Network For File Sharing: Bittorrent’S Choking Algorithm, Piece Selection, And Rarest First
2022-02-05A comprehensive technical exploration of designing a p2p network for file sharing: bittorrent’s choking algorithm, piece selection, and rarest first, covering key concepts, practical implementations, and real-world applications.

A Rigorous Proof Of The A* Algorithm Admissibility And Consistency: Manhatten Vs. Euclidean Heuristics
2022-02-03A comprehensive technical exploration of a rigorous proof of the a* algorithm admissibility and consistency: manhatten vs. euclidean heuristics, covering key concepts, practical implementations, and real-world applications.

Markov Chains for Computer Science: MCMC, Mixing Times, and Randomized Algorithms
2022-01-31A rigorous treatment of Markov chains from a computer science perspective—Metropolis-Hastings, coupling bounds, spectral gaps, and the role of rapid mixing in modern randomized algorithms.

The Performance Of The Bidibfs Algorithm For Unweighted Shortest Paths In Social Networks
2022-01-30A comprehensive technical exploration of the performance of the bidibfs algorithm for unweighted shortest paths in social networks, covering key concepts, practical implementations, and real-world applications.

Implementing A Minimax Player For Go With Monte Carlo Tree Search (Mcts) And Ucb1 Selection
2022-01-29A comprehensive technical exploration of implementing a minimax player for go with monte carlo tree search (mcts) and ucb1 selection, covering key concepts, practical implementations, and real-world applications.

A Comprehensive Look At The Alpha Beta Pruning Algorithm For Game Trees: Expectiminimax And Heuristic Evaluation
2022-01-26A comprehensive technical exploration of a comprehensive look at the alpha beta pruning algorithm for game trees: expectiminimax and heuristic evaluation, covering key concepts, practical implementations, and real-world applications.

Abstract Interpretation: The Cousot Framework, Galois Connections, and Sound Static Analysis by Construction
2022-01-20A rigorous exploration of abstract interpretation—Patrick and Radhia Cousot's unifying framework for static program analysis, from Galois connections to widening operators and the soundness proofs that guarantee analysis correctness.

Building A Distributed Matrix Factorization Using Alternating Least Squares (Als) In Apache Spark
2022-01-20A comprehensive technical exploration of building a distributed matrix factorization using alternating least squares (als) in apache spark, covering key concepts, practical implementations, and real-world applications.

The Theory Of Online Convex Optimization With Regret Bounds: Follow The Leader Vs. Gradient Descent
2022-01-20A comprehensive technical exploration of the theory of online convex optimization with regret bounds: follow the leader vs. gradient descent, covering key concepts, practical implementations, and real-world applications.

The Implementation Of A Random Forest Training In Mpi: Feature Subsampling And Oob Error Estimation
2022-01-19A comprehensive technical exploration of the implementation of a random forest training in mpi: feature subsampling and oob error estimation, covering key concepts, practical implementations, and real-world applications.

Domain Theory: Scott's D∞ Construction, Denotational Semantics, and the Mathematics of Recursive Types
2022-01-15A rigorous exploration of domain theory—Scott's D∞ construction, continuous lattices, the fixpoint theorem, and how domains provide the mathematical foundation for denotational semantics of programming languages.

A Practical Guide To Gradient Boosting: Xgboost’S Weighted Quantile Sketch And Sparsity Aware Split Finding
2022-01-10A comprehensive technical exploration of a practical guide to gradient boosting: xgboost’s weighted quantile sketch and sparsity aware split finding, covering key concepts, practical implementations, and real-world applications.

Process Calculi: Milner's CCS, the π-Calculus, Bisimulation, and Session Types for Protocol Correctness
2022-01-10A rigorous exploration of process calculi—from CCS to the π-calculus, the theory of bisimulation, and the Curry-Howard line connecting session types to linear logic.

Designing A Lagrangian Relaxation Algorithm For The Traveling Salesman Problem With 1 Trees
2022-01-02A comprehensive technical exploration of designing a lagrangian relaxation algorithm for the traveling salesman problem with 1 trees, covering key concepts, practical implementations, and real-world applications.

Separation Logic: The Frame Rule, Separating Conjunction, and Concurrent Verification
2022-01-01An exploration of separation logic—O'Hearn and Reynolds's revolutionary extension of Hoare logic for local reasoning about mutable state, the frame rule, and concurrent separation logic.