Publications (8)
Observational Tests of Open Strings in Braneworld Scenarios
Katherine Freese, Matthew Lewis, Jan Pieter van der Schaar
We consider some consequences of describing the gauge and matter degrees of freedom in our universe by open strings, as suggested by the braneworld scenario. We focus on the geomet…
Three methods, one problem: Classical and AI approaches to no-three-in-line
Pranav Ramanathan, Thomas Prellberg, Matthew Lewis +4
The No-Three-In-Line problem asks for the maximum number of points that can be placed on an n by n grid with no three collinear, representing a famous problem in combinatorial geom…
Grounding Large Language Models in Clinical Evidence: A Retrieval-Augmented Generation System for Querying UK NICE Clinical Guidelines
Matthew Lewis, Samuel Thio, Amy Roberts +8
This paper presents the development and evaluation of a Retrieval-Augmented Generation (RAG) system for querying the United Kingdom's National Institute for Health and Care Excelle…
Future Type Ia Supernova Data as Tests of Dark Energy from Modified Friedmann Equations
Yun Wang, Katherine Freese, Paolo Gondolo +1
In the Cardassian model, dark energy density arises from modifications to the Friedmann equation, which becomes $H^2 = g(\rhom)$, where $g(\rhom)$ is a new function of the energy d…
Unlocking Electronic Health Records: A Hybrid Graph RAG Approach to Safe Clinical AI for Patient QA
Samuel Thio, Matthew Lewis, Spiros Denaxas +1
Electronic health record (EHR) systems present clinicians with vast repositories of clinical information, creating a significant cognitive burden where critical details are easily…
McKay quivers and Lusztig algebras of some finite groups
Ragnar-Olaf Buchweitz, Eleonore Faber, Colin Ingalls +1
We are interested in the McKay quiver and skew group rings , where is a finite subgroup of , where is a finite dimensional vector space over a…
Cardassian Expansion: a Model in which the Universe is Flat, Matter Dominated, and Accelerating
Katherine Freese, Matthew Lewis
A modification to the Friedmann Robertson Walker equation is proposed in which the universe is flat, matter dominated, and accelerating. An additional term, which contains only mat…
The Effects of the Sagittarius Dwarf Tidal Stream on Dark Matter Detectors
Katherine Freese, Paolo Gondolo, Heidi Jo Newberg +1
The Sagittarius dwarf tidal stream may be showering dark matter onto the solar neighborhood, which can change the results and interpretation of WIMP direct detection experiments. S…