Tootfinder

Sources: Atticus, a stealthy stablecoin banking startup, is in advanced talks to raise new funding led by Palmer Luckey at a valuation of between $1.5B and $2B (Axios)
https://www.axios.com/pro/all-deals/2025/05/30/andurils-palmer-…

Scoop: Anduril's Palmer Luckey to invest in stealthy stablecoin startup
The new funding would value Atticus at between $1.5 billion and $2 billion.

Today's solar activity - #Sun

This https://arxiv.org/abs/2502.12498 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

USPilot: An Embodied Robotic Assistant Ultrasound System with Large Language Model Enhanced Graph Planner
In the era of Large Language Models (LLMs), embodied artificial intelligence presents transformative opportunities for robotic manipulation tasks. Ultrasound imaging, a widely used and cost-effective medical diagnostic procedure, faces challenges due to the global shortage of professional sonographers. To address this issue, we propose USPilot, an embodied robotic assistant ultrasound system powered by an LLM-based framework to enable autonomous ultrasound acquisition. USPilot is designed to fu…

This https://arxiv.org/abs/2408.03431 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Compactifications of phylogenetic systems and species of electrical networks
We describe new spaces and maps. Our graphical map is a visual and numerical correspondence between spaces of circular electrical networks and circular planar split systems. When restricted to the planar circular electrical case, this graphical map finds the split system uniquely associated with the Kalmanson resistance distance of the dual network, matching the induced split system familiar from phylogenetics. This correspondence is extended to compactifications of the respective spaces, takin…

1/ Watched more #openhouse with C again last night (series 3 episodes 1 and 2). It’s common that only one of the partners in the relationship really wants to be there - and the other is going along with it to people please, and out of fear of losing the other one.
I think the reasons and motivations for going into

Securing AI Agents with Information-Flow Control
Manuel Costa, Boris K\"opf, Aashish Kolluri, Andrew Paverd, Mark Russinovich, Ahmed Salem, Shruti Tople, Lukas Wutschitz, Santiago Zanella-B\'eguelin
https://arxiv.org/abs/2505.23643

Securing AI Agents with Information-Flow Control
As AI agents become increasingly autonomous and capable, ensuring their security against vulnerabilities such as prompt injection becomes critical. This paper explores the use of information-flow control (IFC) to provide security guarantees for AI agents. We present a formal model to reason about the security and expressiveness of agent planners. Using this model, we characterize the class of properties enforceable by dynamic taint-tracking and construct a taxonomy of tasks to evaluate security…

This https://arxiv.org/abs/2505.21801 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csDB_…

Query, Don't Train: Privacy-Preserving Tabular Prediction from EHR Data via SQL Queries
Electronic health records (EHRs) contain richly structured, longitudinal data essential for predictive modeling, yet stringent privacy regulations (e.g., HIPAA, GDPR) often restrict access to individual-level records. We introduce Query, Don't Train (QDT): a structured-data foundation-model interface enabling tabular inference via LLM-generated SQL over EHRs. Instead of training on or accessing individual-level examples, QDT uses a large language model (LLM) as a schema-aware query planner to g…

This https://arxiv.org/abs/2505.20713 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

A new class of aesthetic curves based on the self-affinity in equiaffine geometry
In this paper, we consider planar curves in equiaffine geometry and present a family of planar curves characterized by a symmetry called the extendable self-affinity (ESA). The ESA has been recognized through the investigation of the symmetry of the log-aesthetic curve (LAC), which has been studied as a reference for designing aesthetic shapes in CAGD and regarded as an analog of Euler's elastica in similarity geometry. Our new class, characterized by the ESA, includes the quadratic curve and t…

Large induced subgraph with a given pathwidth in outerplanar graphs
Naoki Matsumoto, Takamasa Yashima
https://arxiv.org/abs/2505.23162 https://

Large induced subgraph with a given pathwidth in outerplanar graphs
A long-standing conjecture by Albertson and Berman states that every planar graph of order $n$ has an induced forest with at least $\lceil \frac{n}{2} \rceil$ vertices. As a variant of this conjecture, Chappell conjectured that every planar graph of order $n$ has an induced linear forest with at least $\lceil \frac{4n}{9} \rceil$ vertices. Pelsmajer proved that every outerplanar graph of order $n$ has an induced linear forest with at least $\lceil \frac{4n+2}{7}\rceil$ vertices and this bound i…

This https://arxiv.org/abs/2412.05971 has been replaced.
initial toot: https://mastoxiv.page/@a…

Thermodynamic Favorability of the 1T Phase over the 1H Phase in Group III Metal Monochalcogenide Zigzag Nanoribbons
Owing to the promising optoelectronic and thermoelectric properties of two-dimensional (2D) group III-VI materials (MXs), their nanoribbons (NRs) have attracted notable attention as an emerging class of quasi-one-dimensional (quasi-1D) nanostructures. Due to the fact that the most stable 2D monolayer polymorph of MXs is the 1H phase, to date, existing studies in the literature have predominantly focused on the NRs formed from 1H phase MXs. Nevertheless, NRs of the 1T phase have received little …