Tootfinder

Comment on "A Note on Over-Smoothing for Graph Neural Networks"
Razi Hasson, Reuven Guetta
https://arxiv.org/abs/2509.04178 https://arxiv.org/pdf…

Comment on "A Note on Over-Smoothing for Graph Neural Networks"
We comment on Cai and Wang (2020, arXiv:2006.13318), who analyze over-smoothing in GNNs via Dirichlet energy. We show that under mild spectral conditions (including with Leaky-ReLU), the Dirichlet energy of node embeddings decreases exponentially with depth; we further extend the result to spectral polynomial filters and provide a short proof for the Leaky-ReLU case. Experiments on edge deletion and weight amplification illustrate when Dirichlet energy increases, hinting at practical ways to re…

Four old posts updated this week:
For Google’s AI Edge Gallery:
https://adrianroselli.com/2020/03/i-dont-care-what-google-or-apple-or-whomever-did.html#:~:text=Go…

I Don’t Care What Google or Apple or Whoever Did
Please do not use this post as an excuse to beat up the devs at Apple or Google. If you are doing that, you have missed the point of this post and you are being unnecessarily mean to individuals who may have no control over broader organizational decisions. Do not…

Wenn Parteien anfangen, Firmen zu planen, verschwimmt die Grenze zwischen Gemeinwohlauftrag und Geschäftsmodell. Julia Klöckner & Co. zeigten 2020 im Projekt mit Frank Gotthardt, wie Politik und Wirtschaft ineinanderfließen können – zulasten von Vertrauen und Transparenz.
Michael Bröcker, #Table.Media #CDUApp

Newsmax pays $67 million to settle defamation case linked to 2020 election coverage (Maddy Lauria/NPR)
https://www.npr.org/2025/08/18/nx-s1-5506062/newsmax-pays-67-million-to-settle-defamation-case-linked-to-2020-election-coverage
http://www.memeorandum.com/250818/p60#a250818p60

psi: Plant Photosystem I excitation energy transfer network (2020)
Weighted directed network of the light-harvesting Photosystem Ι (PSI) of the plant Pisum sativum. The nodes represent chromophores with different identities (i.e. chlorophyll a, chlorophyll b, β-carotene and derivates, lutein, violaxanthin), while edges represent FRET transfer between chromophores. The link directionality connecting nodes in the PSI network depends on the energy levels of the connected chromophores. The…

I find it kinda funny that the 2020 MacBook Air—my work machine (albeit with 16 GB of RAM)—is now described as being “still capable at handling basic tasks like a champ, including streaming video, browsing, and dealing with documents.”
I haven’t noticed #Emacs slowing down, so what do people do that needs so much more computing power!?

Modeling of AR 12760 with GX Simulator and Evidence for the Extended Transition Region in Peripheral Active Region Loops
Therese A. Kucera, Gelu M. Nita, James A. Klimchuk, Gregory D. Fleishman
https://arxiv.org/abs/2508.20979

Modeling of AR 12760 with GX Simulator and Evidence for the Extended Transition Region in Peripheral Active Region Loops
In order to understand solar atmospheric heating it is important to test heating models against spatially resolved data from solar active regions. Here we model a small active region, AR~12760 observed on 2020 April 28, with the GX Simulator package by fitting the EUV intensities in wavebands observed by Solar Dynamics Observatory's Atmospheric Imaging Assembly. We assume the temporally and spatially averaged heating rate along a loop has a power-law dependence on loop length, $L$ and average m…

Changes in varieties of capitalism within the OECD between 2010 and 2020
Zoltan Bartha
https://arxiv.org/abs/2509.19416 https://arxiv.org/pdf/2509.19416

Changes in varieties of capitalism within the OECD between 2010 and 2020
This study aims to reveal different varieties of capitalism and to uncover new patterns of development that emerged between 2010 and 2020. A hybrid model is applied that quantifies three pillars of development (Future - F, Outside - O, Inside - I) using supply-side and demand-side indicators that measure norms, institutions, and policies. Investigating 34 OECD members, this study describes five varieties of capitalism: traditional, dualistic, government-led, open market-based, and human capital…

Conservative network Newsmax agrees to pay $67M in defamation case over bogus 2020 election claims (Nicholas Riccardi/Associated Press)
https://apnews.com/article/dominion-voting-newsmax-defamation-trump-2020-3b2366dfdae3a8432afe822bf14fe1ef
http://www.memeorandum.com/250818/p70#a250818p70

Dependency Network-Based Portfolio Design with Forecasting and VaR Constraints
Zihan Lin, Haojie Liu, Randall R. Rojas
https://arxiv.org/abs/2507.20039 https://

Dependency Network-Based Portfolio Design with Forecasting and VaR Constraints
This study proposes a novel portfolio optimization framework that integrates statistical social network analysis with time series forecasting and risk management. Using daily stock data from the S&P 500 (2020-2024), we construct dependency networks via Vector Autoregression (VAR) and Forecast Error Variance Decomposition (FEVD), transforming influence relationships into a cost-based network. Specifically, FEVD breaks down the VAR's forecast error variance to quantify how much each stock's shock…

I went to the search bar and my iPad suggested I take a selfie. The last time I used the front camera on this device to record or capture anything was at the very latest 2020.

Building crypto portfolios with agentic AI
Antonino Castelli, Paolo Giudici, Alessandro Piergallini
https://arxiv.org/abs/2507.20468 https://arxiv.org/pdf/…

Building crypto portfolios with agentic AI
The rapid growth of crypto markets has opened new opportunities for investors, but at the same time exposed them to high volatility. To address the challenge of managing dynamic portfolios in such an environment, this paper presents a practical application of a multi-agent system designed to autonomously construct and evaluate crypto-asset allocations. Using data on daily frequencies of the ten most capitalized cryptocurrencies from 2020 to 2025, we compare two automated investment strategies. …

Longitudinal review of portfolios with minimum variance approach before during and after the pandemic
Genjis A. Ossa, Luis H. Restrepo
https://arxiv.org/abs/2507.15111 https://

Longitudinal review of portfolios with minimum variance approach before during and after the pandemic
This study investigates the impact of the pandemic on the most traded stocks in the Colombian stock market for the date of January 17, 2024. Based on the daily data of the most traded companies in Colombia for said date and covering a period general from 2015 to 2023, in a summarized way our analysis reveals that in the period 2015-2019, the return reached 5.70%, with a relatively low risk of 18.45%. However, in the following period 2016 -2020, although the yield decreased to 5.40%, the risk ex…