Tootfinder

I'm #2 on the Mapilio leaderboard for this week thanks to a break in the weather and my new phone.
I hope the weather will cooperate for the following week.

YAY! Toronto lost!
BOO! Boston won!
OMG I’m *SO* conflicted! 🤣 https://press.coop/@CBCNews/112386380194808105

CBC News :press: (@CBCNews@press.coop)
Boston Bruins eliminate Toronto Maple Leafs in Game 7 OT win The Toronto Maple Leafs are out of the NHL playoffs, after losing to the Boston Bruins 2-1 in Game 7 of the first round on Saturday night. #press https://www.cbc.ca/news/canada/toronto/leafs-bruins-game-7-recap-playoffs-1.7194522?cmp=rss&utm_source=press.coop

So I got a whole bunch of 10-month old @… posts from Bluesky in my Mastodon feed today. Bridgy Fed must be working! But is that date mapping working as designed @… ?

Hodge-Chern classes and strata-effectivity in tautological rings
Simon Cooper, Wushi Goldring
https://arxiv.org/abs/2404.05727 https://

Hodge-Chern classes and strata-effectivity in tautological rings
Given a connected, reductive $\mathbf{F}_p$-group $G$, a cocharacter $μ\in X_*(G)$ and a smooth zip period map $ζ:X \to \mathop{\text{$G$-{\tt Zip}}}\nolimits^μ$, we study which classes in the Wedhorn-Ziegler tautological rings $T^*(X), T^*(Y)$ of $X$ and its flag space $Y \to G-ZipFlag^μ$ are \textit{strata-effective}, meaning that they are non-negative rational linear combinations of pullbacks of classes of zip (flag) strata closures. Two special cases are: (1) When $X=G\text{-Zip}^μ$ an…

YAY! Toronto lost!
BOO! Boston won!
OMG I’m *SO* conflicted! 🤣 https://press.coop/@CBCNews/112386380194808105

CBC News :press: (@CBCNews@press.coop)
Boston Bruins eliminate Toronto Maple Leafs in Game 7 OT win The Toronto Maple Leafs are out of the NHL playoffs, after losing to the Boston Bruins 2-1 in Game 7 of the first round on Saturday night. #press https://www.cbc.ca/news/canada/toronto/leafs-bruins-game-7-recap-playoffs-1.7194522?cmp=rss&utm_source=press.coop

Multi-Agent Coverage Control on Surfaces Using Conformal Mapping
Chao Zhai, Yuming Wu
https://arxiv.org/abs/2405.02034 https://arxiv.…

Multi-Agent Coverage Control on Surfaces Using Conformal Mapping
Real-time environmental monitoring using a multi-agent system (MAS) has long been a focal point of cooperative control. It is still a challenging task to provide cost-effective services for potential emergencies in surface environments. This paper explores the transformation of a general surface into a two-dimensional (2D) disk through the construction of a conformal mapping. Multiple agents are strategically deployed within the mapped convex disk, followed by mapping back to the original surfa…

Multipath-based SLAM with Cooperation and Map Fusion
Erik Leitinger, Lukas Wielandner, Alexander Venus, Klaus Witrisal
https://arxiv.org/abs/2405.02126 htt…

Multipath-based SLAM with Cooperation and Map Fusion
Multipath-based simultaneous localization and mapping (MP-SLAM) is a promising approach in wireless networks for obtaining position information of transmitters and receivers as well as information on the propagation environment. MP-SLAM models specular reflections of radio frequency (RF) signals at flat surfaces as virtual anchors (VAs), the mirror images of base stations (BSs). Conventional methods for MP-SLAM consider a single mobile terminal (MT) which has to be localized. The availability o…

This https://arxiv.org/abs/2307.14014 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Pink-noise dynamics in an evolutionary game on a regular graph
We consider an iterated multiplayer prisoner's dilemma game on a square lattice and regular graphs based on the pairwise-Fermi update rule, and obtain heat-maps of the fraction of cooperators and the correlation of neighboring pairs. In the heat-map, there is a mixed region where cooperators and defectors coexist, and in the mixed region the correlation between neighbors is enhanced. Moreover, we observe pink-noise behavior in the mixed region, where the power spectrum can be fitted by a power-…

Even though I very much am an Apple person and have never owned a Samsung phone, this circular tube map, used (in cooperation with TfL) in a current Samsung marketing campaign in London, is genius. Read more for instance at https://www.ianvisits.co.uk/articles/five-

Five tube stations now have new circular tube maps
Circular tube maps are appearing at some London Underground stations as part of an advertising campaign from a phone company promoting a circle feature on their new phones.

ATR-Mapping: Asymmetric Topological Representation based Mapping Framework for Multi-Robot Environment Exploration
Hao Zhang, Jiyu Cheng, Wei Zhang
https://arxiv.org/abs/2404.18089

ATR-Mapping: Asymmetric Topological Representation based Mapping Framework for Multi-Robot Environment Exploration
In recent years, the widespread application of multi-robot systems in areas such as power inspection, autonomous vehicle fleets has made multi-robot technology a research hotspot in the field of robotics. This paper investigates multi-robot cooperative exploration in unknown environments, proposing a training framework and decision strategy based on multi-agent reinforcement learning. Specifically we propose a Asymmetric Topological Representation based mapping framework (ATR-Mapping), combinin…