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The article explains how pretraining on massive generic data creates a reusable base model, while fine‑tuning uses smaller, high‑quality task‑specific data to adapt the model, covering objectives, data scale, cost, methods, and why most projects prefer fine‑tuning.
The article outlines a five‑step process for creating robust Agent Skills, covering when to encapsulate a task, extracting decision logic and anti‑patterns, writing concise instructions, provisioning workflows and verification loops, and iterating with real‑world testing to ensure reliability.
The article explains how to split an AI agent's memory into short‑term and long‑term layers, compares fixed‑window truncation with rolling summarisation for session memory, and details building a vector‑based long‑term store, its benefits, drawbacks, and governance practices.
MoA (Mixture-of-Agents) is a quality-first multi-agent collaboration mode where multiple large models act as Proposers and an Aggregator merges their diverse outputs, delivering more robust and higher-quality results at the cost of increased latency, making it ideal for high-value, open-ended tasks and extensible via multi-layer aggregation.
The article defines tokens (now officially called “词元”), explains why large language models require numeric input, and details three main tokenization strategies—word‑based, character‑based, and subword—along with the sub‑methods BPE, WordPiece, and Unigram, highlighting their advantages and drawbacks.
The article explains how LLM‑based agents implement reflection by first generating output, then evaluating it either through self‑feedback or by invoking external tools, and finally correcting the result, detailing two self‑feedback methods and typical external‑feedback scenarios.
The article explains how to improve Retrieval‑Augmented Generation (RAG) systems by interpreting three key metrics—context recall, context precision, and answer correctness—and provides concrete step‑by‑step actions such as checking the knowledge base, upgrading embedding models, rewriting queries, adding a rerank model, and refining prompts and generation parameters.
The article explains how to assess Retrieval-Augmented Generation (RAG) projects using the Ragas automated evaluation framework, detailing four key dimensions—recall quality, answer faithfulness, answer relevance, and context utilization—and describes the underlying metrics for both retrieval and generation stages.
The article explains ReAct—a Reason‑Act framework for large language model agents that observes, reasons, takes actions via tools, receives feedback, and iterates—highlighting its distinction from plain QA, its step‑by‑step workflow, practical importance, and a weather‑query example.
The article explains that multi-agent systems typically operate in three patterns—sequential execution, parallel execution, and an evaluator-optimizer loop—covers when each pattern is appropriate, and offers interview tips on how to discuss these designs effectively.
