Mechanistic Interpretability: Circuits, Induction Heads
Reverse-engineer transformer networks into human-understandable algorithms by identifying circuits, induction heads, and mechanistic discoveries.
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Reverse-engineer transformer networks into human-understandable algorithms by identifying circuits, induction heads, and mechanistic discoveries.
Examines the open problems, promising research areas, benchmark gaps, and community priorities shaping the future of language AI.
Explains how language AI reshapes labor markets, widens or narrows access gaps, drives regulatory frameworks.
Examines the core alignment challenges facing modern LLMs: scalable oversight, alignment tax, goal mis-specification, reward hacking.
Covers four methods for detecting LLM hallucinations: entailment-based scoring, knowledge base verification, self-consistency checks.
Explains how probing classifiers reveal what linguistic information is encoded in neural network representations.
Explains how language models hallucinate: intrinsic and extrinsic hallucination, factual errors, fabrication, and inconsistency with NLI-based detection.
Examines the structural causes of LLM hallucinations: training data noise, exposure bias, knowledge gaps, and generation pressure in language models.
Explains how language models cause harm through stereotyping, erasure, and demeaning associations, with measurement methods and concrete examples.
Examines emerging language model capabilities including in-context learning, chain-of-thought reasoning, world models, planning and agency.
Covers the key mathematical definitions of algorithmic fairness, from demographic parity to equalized odds.
Examines efficient transformer architectures, hardware co-design, inference optimizations like speculative decoding.
Examine the physical, statistical, and economic limits of LLM scaling, the data wall crisis, and architectural innovations like MoE and inference-time compute.
Practical techniques for reducing demographic bias in language models: data balancing, embedding debiasing, adversarial training.
Measure bias in language models using embedding association tests, generation metrics, classification fairness measures, and standard benchmarks.
Write model cards that communicate intended use, training data, evaluation results, and limitations for responsible AI deployment.
Explains how language models inherit demographic, cultural, and occupational bias from training data, and why they amplify these biases beyond the data.
Explains how token-level watermarking embeds hidden statistical signals into LLM outputs, enabling cryptographically verifiable attribution and AI provenance.
Design reliable LLM judge prompts using explicit criteria, few-shot examples, and chain-of-thought formatting to maximize evaluation accuracy.
How language models memorize training data, methods for measuring extractable memorization, PII risks in web-scale corpora, and practical privacy mitigations.
Explains how position bias, verbosity bias, and sycophancy distort LLM evaluation. Measure swap consistency, detect length effects.
How RETRO trains language models with retrieval from scratch, using chunked cross-attention to integrate a 2T-token database and cut parameter needs 25x.
Build LLM-as-Judge evaluation pipelines: prompt design, judge model selection, calibration against human annotations, and bias mitigation.
Process reward models score individual reasoning steps instead of final answers alone. Covers training data, credit assignment, math tasks, and limitations.
Explains how Constitutional AI trains safer LLMs using constitutional principles, AI-driven critique and revision, and RLAIF preference labeling.
Covers chance-corrected agreement metrics for NLP annotation reliability. Calculate Cohen's kappa, Fleiss' kappa, and Krippendorff's alpha with Python examples.
Examines o1-style reasoning models, test-time compute scaling, process reward models, and open research questions shaping the frontier of AI reasoning.
Covers benchmark saturation in AI evaluation. Explains why static metrics hit ceiling effects, lose statistical power, and how dynamic benchmarks solve this.
Examines systematic reasoning failures in LLMs including spurious correlations, reasoning shortcuts, negation failures.
Explains how LLMs solve math problems, from grade-school word problems to competition math. Topics include chain-of-thought, process reward models, GRPO.
Explains how process reward models score each reasoning step, how verification-guided search selects correct chains.
Explains how self-consistency, tree of thought, least-to-most prompting, and decomposition strategies improve language model reasoning accuracy and reliability.
Explains how chain-of-thought prompting enables language models to reason step by step. Topics include few-shot CoT, zero-shot CoT, self-consistency.
Examines LLM text generation for content creation, writing assistance, and code. Topics include quality dimensions, constraint verification, prompt design.
Examines deductive, inductive, abductive, and causal reasoning in LLMs, including how transformers support inference chains and where reasoning breaks down.
GSM8K tests grade-school mathematical reasoning with multi-step word problems. Covers dataset structure, answer scoring, and known benchmark limitations.
Build intelligent dialogue systems with LLMs, covering conversation management, slot filling, memory strategies, and chatbot evaluation techniques.
Apply model merging to combine task fine-tunes, blend styles, compose capabilities, and evaluate merged models using normalized scores and Pareto analysis.
Explains how structured pruning removes entire attention heads, transformer layers, and feed-forward neurons to create smaller, faster models.
Explains how weight pruning reduces neural network size by removing redundant parameters.
Explains how feature distillation, attention transfer, progressive distillation, and on-policy distillation extend knowledge distillation beyond soft labels.
Build multi-layer guardrail systems for LLM applications, covering input validation, output safety, PII detection, topic enforcement.
Explains how differential privacy protects training data in language models, from the mathematical guarantee to DP-SGD, privacy budgets.
BERTScore evaluates text generation using contextual embeddings to measure semantic similarity.
Explains how knowledge distillation transfers a large teacher model's learned knowledge to a smaller student through soft label supervision.
Measure and communicate LLM confidence through calibration, verbalized uncertainty, semantic entropy, and trust-calibrated user interfaces.
Covers continual learning evaluation with forward transfer, backward transfer, forgetting metrics.
Examines architecture-based continual learning: progressive networks, PackNet, HAT masks, PathNet.
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