Tootfinder

Quantum walks on finite and bounded infinite graphs
Chris Godsil, Steve Kirkland, Sarojini Mohapatra, Hermie Monterde, Hiranmoy Pal
https://arxiv.org/abs/2510.05306 https://

Quantum walks on finite and bounded infinite graphs
A weighted graph $G$ with countable vertex set is bounded if there is an upper bound on the maximum of the sum of absolute values of all edge weights incident to a vertex in $G$. In this paper, we prove a fundamental result on equitable partitions of bounded weighted graphs with twin subgraphs and use this fact to construct finite and bounded infinite graphs with pair and plus state transfer with the adjacency matrix as a Hamiltonian. We show that for each $k \ge 3$, (i) there are infinitely ma…

Exchange for Growth: Currency Dynamics in Emerging Markets
Shaunak Kulkarni, Rohan Ajay Dubey
https://arxiv.org/abs/2510.07039 https://arxiv.org/pdf/2510.0…

Exchange for Growth: Currency Dynamics in Emerging Markets
Currency crises are frequently discussed retrospectively as a necessary and deterministic outcome of a finite sequence of fiscal decisions, monetary manoeuvres, and limited exogenous inputs. Parallelly, the Twin Deficits Hypothesis (TDH) posits that an increase in the budget deficit leads to a direct rise in the current account deficit; although analogous to the idea of currency crises being the outcome of finite inputs (through a balance of payments crisis here), this notion runs contrary to t…

This is the third full build iteration of my miniature #QRP unun supporting both EFHW and "random wire" antennas. At this point, it is still fiddly to build, but I'd expect an experienced #HamRadio DIY / homebrew enthusiast to find the build not terribly difficult.
There's nothing…

Reward Models are Metrics in a Trench Coat
Sebastian Gehrmann
https://arxiv.org/abs/2510.03231 https://arxiv.org/pdf/2510.03231

Reward Models are Metrics in a Trench Coat
The emergence of reinforcement learning in post-training of large language models has sparked significant interest in reward models. Reward models assess the quality of sampled model outputs to generate training signals. This task is also performed by evaluation metrics that monitor the performance of an AI model. We find that the two research areas are mostly separate, leading to redundant terminology and repeated pitfalls. Common challenges include susceptibility to spurious correlations, imp…

Olivier Blanchard, former chief economist of the International Monetary Fund, published a poem on the social media that describes Mr. Trump’s negotiating technique, and the EU’s response:
“I am going to cut your arm.
Please do not, please, please
Ok, I shall be generous, and just cut your thumb.
Thank you, thank you. You are so generous."
#trump

Google DeepMind unveils AlphaEarth Foundations, an AI model that unifies petabytes of Earth observation data and helps scientists create detailed maps on demand (Google DeepMind)
https://deepmind.google/discover/blog/alphaearth-found…

AlphaEarth Foundations helps map our planet in unprecedented detail
New AI model integrates petabytes of Earth observation data to generate a unified data representation that revolutionizes global mapping and monitoring

Crosslisted article(s) found for q-fin.ST. https://arxiv.org/list/q-fin.ST/new
[1/1]:
- Gini-based Model Monitoring: A General Framework with an Application to Non-life Insurance Pricing
Alexej Brauer, Paul Menzel

GRB 250704B: An Off-axis Short GRB with a Long-Lived Afterglow Plateau
Vishwajeet Swain, Tom\'as Ahumada, Sameer K. Patil, Yogesh Wagh, Varun Bhalerao, Mansi Kasliwal, Ehud Nakar, Shreya Anand, Igor Andreoni, G. C. Anupama, Anuraag Arya, Arvind Balasubramanian, Sudhanshu Barway, Malte Busmann, Jonathan Carney, Michael Coughlin, Deepak Eappachen, Daniel Gruen, Xander J. Hall, Viraj Karambelkar, Tanishk Mohan, Brendan O'Connor, Antonella Palmese, Utkarsh Pathak, D. K. Sahu, Adity…

GRB 250704B: An Off-axis Short GRB with a Long-Lived Afterglow Plateau
We present a detailed multi-wavelength afterglow study of the short GRB 250704B, extensively monitored in optical and near-infrared bands. Its afterglow displays an unusually long-duration plateau followed by an achromatic break and a steep decline, deviating from canonical GRB afterglows. While long plateaus are often explained by central engine activity, we find that for GRB 250704B, an energy injection model requires unreasonable parameters. The afterglow is better explained by an off-axis p…

Finally found a really good solution for placing a display directly below my camera (with the Elgato Prompter attached to it) so that I can still move my desk up and down without covering the cam: I mounted a cheap monitor arm to a light stand. 🤓

Replaced article(s) found for cs.AI. https://arxiv.org/list/cs.AI/new
[1/8]:
- Algebras of actions in an agent's representations of the world
Alexander Dean, Eduardo Alonso, Esther Mondragon