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IA-RAG: Interval-Algebra-Driven Temporal Reasoning for Dynamic Knowledge Retrieval
Announce Type: new Abstract: Retrieval-Augmented Generation (RAG) has shown strong effectiveness in grounding Large Language Models (LLMs) with external knowledge. However, existing RAG and Graph RAG frameworks largely treat knowledge as static or associate time with coarse-grained timestamps or metadata, failing to capture rich temporal structures such as duration, overlap, and containment. We propose IA-RAG, a hierarchical temporal RAG framework that models knowledge as time intervals and...
Deep learning four decades of human migration
Abstract Human migration is a fundamental driver of global demographic change, shaping population structure, labour markets and social policy across countries1,2,3. Although long-term migration patterns are often linked to economic development4, they can shift rapidly in response to shocks such as conflict, environmental crises and political change5. Despite its importance, migration remains difficult to measure consistently: existing data are sparse, concentrated in high-income settings and...
Egypt fossils show modern ocean fish rose rapidly after dinosaur extinction
Egypt fossils show modern ocean fish rose rapidly after dinosaur extinction Sadie Harley Scientific Editor Robert Egan Associate Editor The extinction that ended the Age of Dinosaurs is best known for clearing the way for the Age of Mammals on land. Scientists have long suspected that the same catastrophe also transformed life in the seas, opening ecological space for the rise of modern marine fish faunas. Yet the timing and geography of that transition have remained uncertain because of the...
Student astronomer discovers 'Rosetta Stone' for mysterious cosmic signals
Student astronomer discovers 'Rosetta Stone' for mysterious cosmic signals Sadie Harley Scientific Editor Robert Egan Associate Editor An international team led by astronomers at the University of Sydney has uncovered the clearest evidence yet for the origin of an unusual class of cosmic signals. In doing so, they have identified a rare stellar system that is providing scientists with a natural laboratory to study extreme physics. Using CSIRO's ASKAP radio telescope, the team discovered a...
2026 World Cup: five key facts about FIFA's biggest ever tournament
The 2026 World Cup will be the first with 48 teams, 104 matches and three host nations. With record figures, extreme heat risks and Super Bowl-style spectacle, the North American tournament promises to break the mould. The 2026 football World Cup will not only be the biggest in history; it also looks set to become one of the most unusual and ambitious tournaments FIFA has ever organised.
The Great American Road Trip: 8 places to travel (and stay) to celebrate America 250 this summer
America turns 250 on the Fourth of July, and communities across the country are marking the milestone with a yearlong lineup of concerts, fireworks, festivals and historical events. From California to Boston, destinations are building special travel experiences around the Semiquincentennial, making this a memorable time to hit the road. We rounded up eight destinations worth adding to your itinerary for America's 250th anniversary, including iconic historical landmarks and a few lesser-known...
Zeroserve: A zero-config web server you can script with eBPF
zeroserve is a small, fast, zero-config HTTPS server. You hand it a tarball of a website and it serves it - over HTTP/2 and TLS 1.3, with hot reload and a tiny resident footprint. The twist is that you can drop eBPF programs into the tarball and they run on every request, in userspace, as sandboxed middleware - rewriting, authenticating, and rate-limiting requests, or reverse-proxying them to a backend when you want it to act as a gateway in front of your app.
Systematic estimates of global causes of neonatal and under 5 mortality in 2000-24: secondary data analysis using bayesian multinomial logistic regression
AbstractObjectiveTo estimate cause specific mortality among neonates and children under 5 for 195 countries from 2000 to 2024.DesignSecondary data analysis using a Bayesian multinomial logistic regression model to estimate cause specific mortality fractions. Data sourcesPubMed, Embase, Web of Science, SCOPUS, Cochrane, Global Health Index Medicus, PAHO, Global Health OVID, Africa-Wide Information, IndMed, WHO Mortality Database, Demographic and Health Surveys (DHS), Multiple Indicator...
How FIFA is turning World Cup into an NBA, NFL-style made-for-TV event
The ever-present description of football as a “game of two halves” is set for a new narrative as FIFA, the governing body of the game, has included a three-minute hydration break midway through each half of every match in the 2026 FIFA World Cup, make it a move which essentially splits the match into four quarters similar to NBA and NFL of the host United States. Previous World Cups also had cooling breaks but only when the temperature rose above a certain level. But this time, regardless of...
Show HN: Nucleus – A security-hardened, Nix-native container runtime
Extremely lightweight, security-hardened, declarative container runtime for agents and production services Nucleus is a minimalist container runtime for Linux. It provides isolated execution environments using Linux kernel primitives without the overhead of traditional container runtimes. For production services, it is designed around a fully declarative model: Nix builds the root filesystem, the NixOS module declares the service, and Nucleus mounts a pinned, reproducible closure at runtime.