AI Explained

Plain explanations of trending AI concepts, with live visualizations.

LLM

Ring-Zero scales zero-RL reasoning to 1T parameters — Trillion-scale zero-RL — What does it mean?

Ring-Zero runs zero-RL — reward-only RL with no SFT warm-up — at 1T parameters and finds a two-phase discovery-then-sharpening learning pattern.

LLM

TIGER routes visual tokens for multimodal speculative decoding — Text-conditioned visual routing — What does it mean?

Speculative decoding helps less on images. TIGER lets the draft model peek only at the image patches its current sentence is about.

LLM

ROBIN repairs biased behavior at transformer head level — Head-level bias subspace removal — What does it mean?

ROBIN localizes bias to specific attention heads with fairness probes, then notches a small bias subspace out of their output at inference — no retraining.

LLM

Transformer rank study reframes Pre-Norm as gradient preservation — Rank preservation vs magnitude control — What does it mean?

Skips and Pre-Norm are taught as magnitude control. A theory paper recasts them as what keeps a deep network's gradient rank alive.

LLM

D-Cut prunes speculative decoding verification across batches — Cross-request draft pruning — What does it mean?

Speculative decoding gives every request the same draft depth. D-Cut pools the drafts from all of them and verifies only the ones likely to be accepted.

LLM

LLM-as-judge bias appears as activation geometry — Steerable bias directions — What does it mean?

LLM-as-judge bias is a steerable direction in the judge's hidden state — a study that reads it, predicts it, and steers it back to baseline.

LLM

AVQ-Attention refines codewords where attention mass concentrates — Adaptive vector-quantized attention — What does it mean?

AVQ-Attention represents keys as a few codewords, then adds detail only where attention concentrates — turning O(N²) attention into O(MN).

LLM

KronQ adds gradient covariance to LLM quantization — Kronecker-factored Hessian — What does it mean?

KronQ scores the rounding error by its output impact, not just its input size — so 2-bit LLaMA-3-70B holds instead of collapsing.

LLM

HCRMap places hot MoE experts across chiplet memory tiers — Hotness-aware MoE expert replica placement — What does it mean?

HCRMap ranks each MoE expert by how hot it runs, then promotes or evicts its copies across memory tiers, cutting latency up to 46.7%.

LLM

ARMT extends LLM context with recurrent associative memory — Associative recurrent memory — What does it mean?

ARMT extends an LLM's context with a fixed-size recurrent associative memory instead of a growing KV cache — flat memory as text grows, ~30% fewer FLOPs.

LLM

Self-guided TTT adapts long-context LLMs on selected spans — Evidence-span test-time training — What does it mean?

Before answering, the model highlights the evidence spans that matter and briefly trains on only those — a per-question tune-up that recovers long-context accuracy.

LLM

KV-PRM scores agent rollouts from the KV cache — Verify-token scoring against the KV cache — What does it mean?

KV-PRM grades a reasoning trajectory from the KV cache the model already built — one verify token, not a full re-encode of the whole trace.