All series

Groups, rings, fields, and Galois theory — the structural lens on mathematics.

Bailian model platform: prompt engineering, fine-tuning, agents, and evaluation.

The complete guide to building on Alibaba Cloud — compute, networking, storage, databases, AI, security, and infrastructure-as-code.

Production-grade ML on Alibaba Cloud — DSW, DLC, EAS, Designer, QuickStart, end-to-end.

Six-piece field guide to Claude Code — config, modes, slash commands, MCP, hooks, SDK + GitHub.

Infrastructure, networking, and the platforms ML actually runs on.

OS, networking, compilers — the substrate beneath everything.

SQL, NoSQL, and everything in between.

From curves and surfaces to manifolds, connections, and Gauss-Bonnet.

Containers from first principles to production.

Infinite-dimensional vector spaces, bounded operators, spectral theory, and the math behind PDE.

From the kernel trick and RKHS theory to GP, Nystrom approximation, deep kernel learning, and a production toolkit.

Algorithms by pattern, with worked solutions.

The geometry and computation that underlies all of ML.

Practical Linux — shell, processes, networking, and performance.

End-to-end modern LLM stack: architectures, post-training, inference, RAG, evaluation, safety, and production.

Deriving the algorithms — no hand-waving.

Modern NLP — language models, embeddings, transformers, and beyond.

From classical ODE methods to neural ODEs.

Self-hosted AI agent gateway from zero to a real working stack — install, channels, skills, MCP.

From convex analysis to non-convex landscapes — first-order, second-order, constrained, stochastic, and combinatorial optimization with complete proofs.

PINNs, neural operators, and the math behind learned PDE solvers.

Asset allocation, wealth management products, and the beginner's path to a sensible portfolio — learned in public, one concept at a time.

The mathematical foundation every ML practitioner needs.

The thinking, tradeoffs, and growth behind building real systems — architecture, security, UX, reliability, and abstraction.

From scripts to production-grade Python.

From classic CF to GNN, GCSAN, HCGR, and modern multi-objective ranking.

Foundations of RL: MDPs, policy gradients, actor-critic, and offline RL.

Building systems that survive production.

Building infrastructure-as-code agents: planning, validation, and apply loops.

Statistical and deep methods for forecasting at scale.

Domain adaptation, fine-tuning, and representation transfer.