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Models From First Principles 07: PACS — Building an Optimizer From Gradient Statistics
PyTorch Model Not Learning? A Systematic Debugging Guide
PyTorch Autograd Debugging: requires_grad, detach, backward() and NaN Gradients

Recent Posts

Advanced Agents From First Principles 09: Can Your Agent Actually Learn From Previous Runs?
Advanced Agents From First Principles 06: Does One Agent Plan, Execute and Judge Its Own Work? Build a Planner-Executor-Critic Architecture
Advanced Agents From First Principles 05: Is One Model Doing Everything? Build a Mixture of Experts at the Agent Level
Advanced Agents From First Principles 04: Does Your Agent Prune Good Ideas Too Early? Use Monte Carlo Tree Search for Long-Horizon Reasoning
Advanced Agents From First Principles 03: Does Your Agent Commit to a Bad Reasoning Path Too Early? Build a Tree of Thoughts
Advanced Agents From First Principles 02: Why Does My Reasoning Agent Give a Different Answer Every Time? Use Self-Consistency Without Confusing Consensus With Truth
Advanced Agents From First Principles 01: Does Your AI Agent Fail on Complex Reasoning Tasks? Treat Chain of Thought as Computation, Not Proof
Advanced Agents From First Principles 00: When Should You Use an Advanced Agent Architecture?
Agents From First Principles 09: AI Agent Says It Worked When It Didn’t? Verify the Result Outside the LLM
Agents From First Principles 08: AI Agent Picks the First Solution? Add Search Instead of One-Shot Generation
Agents From First Principles 07: AI Agent Forgets Previous Work? Add Working, Semantic and Episodic Memory
Agents From First Principles 06: AI Agent Chooses the Wrong Tool? Design Better Tool Interfaces, Schemas and Routing
Agents From First Principles 05: AI Agent Gets Stuck in a Loop? Add State, Feedback and Stopping Conditions
Agents From First Principles 04: AI Agent Fails on Multi-Step Tasks? Separate Planning From Execution
Agents From First Principles 03: AI Agent Keeps Making the Same Mistake? Add a Critique-and-Revision Loop
Agents From First Principles 02: AI Agent Gives Inconsistent Answers? Generate Multiple Candidates and Rank Them
AI Agent Returning Invalid Tool Calls? How to Validate LLM Actions
Agents From First Principles 00: What Is an Agent, Really?
Models From First Principles 08: Which Model Should You Use? MR.Q, EBT, SICQL, HRM, Tiny and PACS Compared
Models From First Principles 07: PACS — Building an Optimizer From Gradient Statistics
Models From First Principles 06: Inside Tiny — Residual Blocks, Attention and Sparse Autoencoders
Models From First Principles 05: Tiny — Recursive Reasoning With a Small Neural Network
Models From First Principles 04: HRM — Hierarchical Reasoning With Fast and Slow Recurrent State
Models From First Principles 03: SICQL — Building a Model From Q, V and Policy Networks
Models From First Principles 02: EBT — From One Score to Q, V, Policy and Advantage

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Reasoning Executable Cognition Executable Cognitive Kernel Executable Search Execution Traces Experience Compiler Explainable AI Explainable Analysis External Constraint Extractive QA Extractive Transfer Extrinsic Hallucination Failure Taxonomy False Acceptance Rate Falsification Family Formation FastAPI Feature Extraction Feature Importance Federal Revenue Federal-Provincial Dynamics Feedback Loops Feedback Loops in AI FFmpeg Filmstrip Fin-R1 Finance Financial Repression Fine-Tuning Fiscal Constraint Fiscal Policy Forecasting Formal Verification Format Selection Fp16 Fuel Protests Function Calling Functional Intelligence Functions Future Citizen Balance Sheet Future of Work GAP Component GDP per Capita General Reasoner Geometric Machine Learning GILD Integration GILD Training GNI vs GDP Goal-Based Learning Goal-Conditioned Evaluation Goal-Conditioned Scoring Goal-Driven AI Goodhart’s Law Gpt Gpu Gradients Graph of Thoughts Graph-Based Memory Graph-Based Reasoning GrepSeek Grounded 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Fiscal Policy Irish Housing Iterative Analysis Jitter Json Validation Knowledge Distillation Knowledge Graph Knowledge Graphs Knowledge Ingestion Knowledge Management Knowledge Measurement Knowledge Scoring Language Models Large Language Models Latent Variables Lean Leanstral Learning-From-Learning Least-Privilege AI LeCun Architecture Legacy Debt Lightweight AI Litellm Llama Factory Llama-Factory Quantization Llm LLM Agents LLM Alignment LLM Arbitration LLM Evaluation LLM Governance LLM Judgement LLM Pipeline LLM Routing LLM Supervision LLM Validation LLMs Local Models Logistic Regression Logits Long-Term AI Memory LoRD Distillation Low-Resource LLMs Machine Learning Macro Economics Macroeconomic Analysis Macroeconomic Modeling Managed Continuity MARS Master–pupil Architecture MCTS Measurement Measurement Crisis Memento Paper Memory Attribution Memory Composition Memory Diffing Memory Drift Memory Governance Memory Graph Memory Health Evaluation Memory Provenance Meta-Agents Meta-Learning Meta-Prompting Meta-Reasoning Metacognition in AI Metacognitive Awareness Mirror Machine Mixture of Experts ML Evaluation Model Alignment Model Architecture Model Comparison Model Compression Model Development Model Distillation Model Head Specialization Model Interpretability Model Monitoring Model Optimization Model Selection Model Switching Model Tuning Engines Model Validation Modified Domestic Demand Modular Embeddings Modular Scoring Moment Replay Monetary Policy Monotone Calibration Monte Carlo Tree Search Movie Generation MR.Q MRQ MRQ Evaluation MRQ Feedback Loops MRQ Models MRQ Scoring Multi-Agent Multi-Agent Systems Multi-Axis Evaluation Multi-Dimensional Scoring Multi-Model Reasoning Multi-Stage Reasoning Multi-Step Agents Multidimensional Scoring Multihead Attention Multimedia Multimodal AI Multimodal Representation Multinational Concentration Multistrategy Reasoning National Champions NER Retriever Nested Reasoning Loops Neural Network From Scratch Neural 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Transfer Regularized Training Reinforcement Learning Reinforcement-Based Scoring Relevance Gap Reliable Revenue Rent Burden Repair Loops Replay vs Snapshot Equivalence Replayable Reasoning Reports Representation Learning Reproducibility Research Automation Research Filtering Research Reproducibility Reshape Retention Policy Retrieval Retrieval Is Not Proof Revenue Concentration Revenue Quality Reversible Systems Revision Reward Modeling Rhetoric RHLF RIVAL Framework Rmsnorm RMSNorm Stability Routing Rubric Classification Rubric-Based Evaluation Rule-Based Reasoning Runtime Epistemics Runtime Intelligence Runtime Search Sae Savings Resilience Scenario Analysis Scientific Research SCM Scoped Search Scorable Score Convergence Scoring Pipelines Scoring Stack Search Search as Cognition Search Biasing Search Self-Play Search Topology Self Consistency Self-Improvement Self-Improvement Loop Self-Improving Agents Self-Improving AI Self-Improving AI Systems Self-Improving Systems Self-Learning 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