Feature

Scalable Training of Diffusion Samplers via Fixed-point Score Matching

Scalable Training of Diffusion Samplers via Fixed-point Score Matching

Denis Blessing presents scalable training of diffusion samplers via fixed point score matching: a unifying framework for learning Boltzmann-type distributions from energy evaluations alone, with applications to amorphous materials, alloy phase diagrams, and reinforcement learning with flow policies.

Your AI Isn’t the Problem. Your Infrastructure Is. — Jiachen Jiang, Coder

Your AI Isn’t the Problem. Your Infrastructure Is. — Jiachen Jiang, Coder

Jiachen Jiang uses three agent security incidents, the Replit production database deletion, a relayed banking compromise involving Copilot, and the Nx supply chain attack, to argue that prompts cannot enforce boundaries. He maps each incident to six infrastructure controls: environmental separation, short-lived scoped credentials, identity-aligned access, model proxies, sandboxing, and independent audit logs.

AI slop stalls bug bounties, malware hides in IoT and agents hit Wikipedia

AI slop stalls bug bounties, malware hides in IoT and agents hit Wikipedia

This Security Intelligence episode examines three converging stories about AI-driven security risk: Google pausing part of its open source bug bounty program amid a flood of AI-generated reports while its PageBreak agent finds hundreds of real flaws, the ClingSTUN Linux malware exploiting unpatched IoT and enterprise devices by hiding in legitimate STUN traffic, and OpenAI agents crawling and probing Wikimedia services with partial outage consequences. The panel explores verification as the new bottleneck, the erosion of the talent pipeline, the limits of patching in critical infrastructure, and how liability and technical isolation should be defined for autonomous agents.

Automating document work with Long-Horizon AI Agents at LlamaIndex

Automating document work with Long-Horizon AI Agents at LlamaIndex

Jerry, CEO of LlamaIndex, argues that as AI agents move from answering questions to running long-lived workflows, documents become their most important context source. He walks through the evolution from simple RAG to agent harnesses, explains why PDFs are hard to parse, and presents the company's approach to OCR, extraction with grounding, and document search. He closes by outlining unsolved problems: agent-native document formats, in-place editing, versioning, distilling frontier workflows into cheaper models, and long-horizon background agents.

The Agent Works. Does Anyone Trust It? — Michele Grant, Leading at Scale

The Agent Works. Does Anyone Trust It? — Michele Grant, Leading at Scale

Michele Grant argues that an AI agent's technical accuracy is not enough to justify running a core business process. Using an illustrative M&A integration scenario, she lays out a framework built on measurable value against a baseline, three lines of accountability, a Human Works Standard, auditable evidence such as decision logs and model inventories, and staged autonomy governed by independent sampling and an autonomy scorecard.

Judge a Transaction by the Company It Keeps — Somya Rai & MD Sharique, EXL

Judge a Transaction by the Company It Keeps — Somya Rai & MD Sharique, EXL

EXL developed an advanced fraud detection system that augments XGBoost with Graph Neural Network (GNN) embeddings. Traditional tabular models struggle to capture fraud signals residing in transaction neighborhoods. The system's innovative design includes meticulous sampling strategies, disjoint monthly graph construction for leakage control, and a GraphSAGE architecture that aggregates mean, max, and standard deviation of neighbor features to detect subtle fraud patterns. Emphasizing explainability for regulatory compliance and analyst trust, it also features a highly optimized serving architecture achieving 3ms P99 latency, pivoting to edge prediction to reduce cache footprint from 60GB to 2-3GB. This led to a 27-33% relative lift in true positive rates and a projected $65 million incremental fraud capture.