Tootfinder

Reverse Fa\`a di Bruno's Formula for Cartesian Reverse Differential Categories
Aaron Biggin (Macquarie University), Jean-Simon Pacaud Lemay (Macquarie University)
https://arxiv.org/abs/2509.20931

Reverse Faà di Bruno's Formula for Cartesian Reverse Differential Categories
Reverse differentiation is an essential operation for automatic differentiation. Cartesian reverse differential categories axiomatize reverse differentiation in a categorical framework, where one of the primary axioms is the reverse chain rule, which is the formula that expresses the reverse derivative of a composition. Here, we present the reverse differential analogue of Faa di Bruno's Formula, which gives a higher-order reverse chain rule in a Cartesian reverse differential category. To prop…

As Zelensky reverses course on anti-corruption crackdown, here’s what to expect next in Ukraine: https://benborges.xyz/2025/07/25/as-zelensky-reverses-course-on.html

Representative Marie Gluesenkamp Perez says age-related cognitive decline among elected officials is a major issue for voters.
Ms. Perez was hesitant to name any particular colleague, because she said the problem was bigger than any one person.
But she said she was “concerned” about what she had heard about Representative Eleanor Holmes Norton, 88,
the nonvoting delegate representing Washington, D.C., who is clinging to her seat despite clear signs of mental decline.

This Democrat Wants Cognitive Standards in Congress. Her Colleagues Disagree.
Representative Marie Gluesenkamp Perez says age-related cognitive decline among elected officials is a major issue for voters.

Favorite team name “Blood Bath and Beyond”
#biking #bikeTooter

paris_transportation: Paris Transportation (2016)
A multiplex transportation network of Ile-de-France, jointly representing the road network, train network, and subway network. Nodes are intersections, rail stations or metro stations. Different modes of transportation are given by different layers. Within-layer edges represent direct transference by a particular mode of transportation, and between-layer edges represent the conjunction of those layers at that node.
This network ha…

Causal Representation Learning with Observational Grouping for CXR Classification
Rajat Rasal, Avinash Kori, Ben Glocker
https://arxiv.org/abs/2506.20582 h…

Causal Representation Learning with Observational Grouping for CXR Classification
Identifiable causal representation learning seeks to uncover the true causal relationships underlying a data generation process. In medical imaging, this presents opportunities to improve the generalisability and robustness of task-specific latent features. This work introduces the concept of grouping observations to learn identifiable representations for disease classification in chest X-rays via an end-to-end framework. Our experiments demonstrate that these causal representations improve gen…

🏨 As inmate population declines, Norco prison will close. Will it be a luxury hotel again?
https://www.latimes.com/california/story/2025-08-05/norco-riverside-county-prison-to-close-fall-2026

Norco prison will close. Will it be restored to its former glory?
The 3,000-inmate California Rehabilitation Center in Riverside County is set to close in fall 2026, continuing a wave of recent correctional facility shutdowns.

Investigating the Representation of Backchannels and Fillers in Fine-tuned Language Models
Yu Wang, Leyi Lao, Langchu Huang, Gabriel Skantze, Yang Xu, Hendrik Buschmeier
https://arxiv.org/abs/2509.20237

Investigating the Representation of Backchannels and Fillers in Fine-tuned Language Models
Backchannels and fillers are important linguistic expressions in dialogue, but are under-represented in modern transformer-based language models (LMs). Our work studies the representation of them in language models using three fine-tuning strategies. The models are trained on three dialogue corpora in English and Japanese, where backchannels and fillers are preserved and annotated, to investigate how fine-tuning can help LMs learn their representations. We first apply clustering analysis to the…

wiki_rfa: Wikipedia RfA voting network (2013)
The set of all votes on Requests for Adminships (RfA), from 2003 to May 2013, represented as a directed, signed network in which nodes represent Wikipedia members and edges represent votes.
This network has 11381 nodes and 198275 edges.
Tags: Social, Relationships, Signed
https://

paris_transportation: Paris Transportation (2016)
A multiplex transportation network of Ile-de-France, jointly representing the road network, train network, and subway network. Nodes are intersections, rail stations or metro stations. Different modes of transportation are given by different layers. Within-layer edges represent direct transference by a particular mode of transportation, and between-layer edges represent the conjunction of those layers at that node.
This network ha…