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Related Articles from SNS
MMR-GRPO: Accelerating GRPO-Style Training through Diversity-Aware Reward Reweighting
arXiv:2601.09085v2 Announce Type: replace Abstract: Group Relative Policy Optimization (GRPO) has become a standard approach for training mathematical reasoning models; however, its reliance on multiple completions per prompt makes training computationally expensive. Although recent work has reduced the number of training steps required to reach peak performance, the overall wall-clock training time often remains unchanged or even increases due to higher per-step cost. We propose MMR-GRPO,...
Fast Deterministically Safe Proof-of-Work Consensus
arXiv:2512.19968v3 Announce Type: replace Abstract: Permissionless blockchains achieve consensus while allowing unknown nodes to join and leave the system at any time. They typically come in two flavors: proof of work (PoW) and proof of stake (PoS), and both are vulnerable to attacks. PoS protocols suffer from long-range attacks, wherein attackers alter execution history at little cost, and PoW protocols are vulnerable to attackers with enough computational power to subvert execution history.
CourseTimeQA: A Lecture-Video Benchmark and a Latency-Constrained Cross-Modal Fusion Method for Timestamped QA
arXiv:2512.00360v2 Announce Type: replace Abstract: We study timestamped question answering over educational lecture videos under a single-GPU latency/memory budget. Given a natural-language query, the system retrieves relevant timestamped segments and synthesizes a grounded answer. We present CourseTimeQA (52.3 h, 902 queries across six courses) and a lightweight, latency-constrained cross-modal retriever (CrossFusion-RAG) that combines frozen encoders, a learned 512->768 vision projection,...
Anguished Parents, Crying Doctors: Life Amid Utah’s Measles Outbreak
Ben Dowse hadn’t expected to treat measles when he became a doctor, but there he was, examining a newborn exposed to the virus in the womb. The infected mother had given birth just hours earlier. The hospital had alerted Dowse to the case before delivery, and he’d braced himself for the worst.
CacheRAG: A Semantic Caching System for Retrieval-Augmented Generation in Knowledge Graph Question Answering
Announce Type: replace Abstract: The integration of Large Language Models (LLMs) with Retrieval-Augmented Generation (RAG) has significantly advanced Knowledge Graph Question Answering (KGQA). However, existing LLM-driven KGQA systems act as stateless planners, generating retrieval plans in isolation without exploiting historical query patterns: analogous to a database system that optimizes every query from scratch without a plan cache. This fundamental design flaw leads to schema...
CacheRAG: A Semantic Caching System for Retrieval-Augmented Generation in Knowledge Graph Question Answering
arXiv:2604.26176v3 Announce Type: replace Abstract: The integration of Large Language Models (LLMs) with Retrieval-Augmented Generation (RAG) has significantly advanced Knowledge Graph Question Answering (KGQA). However, existing LLM-driven KGQA systems act as stateless planners, generating retrieval plans in isolation without exploiting historical query patterns: analogous to a database system that optimizes every query from scratch without a plan cache. This fundamental design flaw leads...
FLOWREADER: Min-Cost Flow Optimization for Multi-Modal Long Document Q&A
arXiv:2606.07235v2 Announce Type: replace Abstract: Long, multimodal documents force retrieval-augmented systems to assemble answers from evidence fragmented across text, tables, and slides broken across cells in a long table, spread over multiple slides, or split between a figure and its discussion. Top-$k$ chunk retrieval treats each fragment independently and cannot represent how evidence connects. We introduce FLOWREADER, which reframes evidence assembly as a min-cost flow problem on a...
As vaccination rates fall in Australia, a British mother has a warning
As vaccination rates in Australia decrease, this grieving British mother has a warning Sun 7 Jun 2026 at 4:39am When Rebecca Archer's five-month-old daughter Renae got a temperature, turned pale and struggled to breathe, she called an ambulance. They were taken to hospital straight away, where Renae was diagnosed with measles. The next day they were discharged and Renae went home with a drip.
FLOWREADER: Min-Cost Flow Optimization for Multi-Modal Long Document Q&A
arXiv:2606.07235v1 Announce Type: new Abstract: Long, multimodal documents force retrieval-augmented systems to assemble answers from evidence fragmented across text, tables, and slides broken across cells in a long table, spread over multiple slides, or split between a figure and its discussion. Top-$k$ chunk retrieval treats each fragment independently and cannot represent how evidence connects.
Health Protection Report volume 20 (2026)
Health Protection Report volume 20 (2026) A national public health bulletin from the UK Health Security Agency (UKHSA). Documents Details The Health Protection Report (HPR) comprises: - routine reports on infections (microbiological and epidemiological data and associated commentary) - reports from UKHSA’s Environmental Health Protection Surveillance System - a digest of news on infections and other health protection topics For a full listing of the most recently published HPR surveillance...