Tootfinder

"Einsatzgebiete von Künstlicher Intelligenz in wissenschaftlichen Bibliotheken – Praxis und Perspektiven": Bachelor-Arbeit von Carina Pizzini an der TH Köln: https://publiscologne.th-koeln.de/frontdoor/index/index/docId/2678

Interactive resizing of picture and table content in Rmd and Quarto: #rstats

– #blogwochen2025

#FotoDerWoche vom Betriebsausflug in meine Geburtsstadt Tübingen. Oder: wie Wimmelbücher Erinnerungen prägen.
https://blog.till-westermayer.de/index.php/2…

Photo of the week: Tübingen
Der Betriebsausflug der Landtagsfraktion ging dieses Jahr nach Tübingen. Gleich am Bahnhof augenfällig: Radinfrastruktur, das gut ausgebaute Bus-System (eine Straßenbahn wurde abgelehnt ...), kurz dahinter dann: Abkühlbrunnen und Vernebelungsanlagen. Im Rathaus eine Ausstellung zur Energieeffizienz.

wow this sucks. happy everyone is safe.
#nwsl

O.k. four more slides by Eduard Masana at the Leuven SEC about the 2026 Total #SolarEclipse in Spain, namely what the Comisión Nacional del Eclipse is preparing: see https://www.iaa.csic.es/page/comision-nacional-eclipse and https://eclipses.ign.es and https://eclipse-spain.es/index.php/en/ for relevant websites. And some Final Thoughts and Recommendations about the expected eclipse experience in Spain. 13/n

I've got a new article on loans made by an Indigenous (Wendat) family to their settler neighbors in the 19th c. Among other things, it looks at credit in the countryside, Indigenous interactions with banking and capitalism, Catholicism and usury, and notarial archives (they're the best).
Paywalled, but I know a guy.
"The Vincent-Picard Family’s Investments: Wendat Wealth and Notarized Contracts in the Mid-Nineteenth Century"

Air quality index in #Toronto just turned very bad very quickly tonight.
#aqi

Irgendwann in einem Blog gesehen, weiß leider nicht mehr welcher es war.
Your Name in Landsat
Type your name to see ist spelled out in Landsat imagery of Earth
https://landsat.gsfc.nasa.gov/apps/YourNameInLandsat-main/index.html

#TIL: der #podcast "open science talk" ist umgezogen: https://septentrio.uit.no/index.php/OS

Unobtrusive Reflectance Photoplethysmography for Detecting and Severity Grading of Sleep Apnea via Oxygen Desaturation Index
Karen Adam, Cl\'ementine Aguet, Patrick Theurillat, Florent Baty, Maximilian Boesch, Damien Ferrario, Mathieu Lemay, Martin Brutsche, Fabian Braun
https://arxiv.org/abs/2507.08399

Unobtrusive Reflectance Photoplethysmography for Detecting and Severity Grading of Sleep Apnea via Oxygen Desaturation Index
Sleep apnea is a common chronic sleep-related disorder which is known to be a comorbidity for cerebro- and cardio-vascular disease. Diagnosis of sleep apnea usually requires an overnight polysomnography at the sleep laboratory. In this paper, we used a wearable device which measures reflectance photoplethysmography (PPG) at the wrist and upper arm to estimate continuous SpO2 levels during sleep and subsequently derive an oxygen desaturation index (ODI) for each patient. On a cohort of 170 patie…

Expected and minimal values of a universal tree balance index
Veselin Manojlovi\'c, Armaan Ahmed, Yannick Viossat, Robert Noble
https://arxiv.org/abs/2507.08615

Expected and minimal values of a universal tree balance index
Although the analysis of rooted tree shape has wide-ranging applications, notions of tree balance have developed independently in different domains. In computer science, a balanced tree is one that enables efficient updating and retrieval of data, whereas in biology tree balance quantifies bias in evolutionary processes. The lack of a precise connection between these concepts has stymied the development of universal indices and general results. We recently introduced a new tree balance index, $…

Total/dual correlation/coherence, redundancy/synergy, complexity, and O-information for real and complex valued multivariate data
Roberto D. Pascual-Marqui, Kieko Kochi, Toshihiko Kinoshita
https://arxiv.org/abs/2507.08773

Total/dual correlation/coherence, redundancy/synergy, complexity, and O-information for real and complex valued multivariate data
Firstly, assuming Gaussianity, equations for the following information theory measures are presented: total correlation/coherence (TC), dual total correlation/coherence (DTC), O-information, TSE complexity, and the redundancy-synergy index (RSI). Since these measures are functions of the covariance matrix "S" and its inverse "S^-1", the associated Wishart and inverse-Wishart distributions are of note. The DTC is shown here to be the Kullback-Leibler (KL) divergence for the inverse-Wishart pair …

The IceCube-Gen2 Collaboration -- Contributions to the 39th International Cosmic Ray Conference (ICRC2025)
R. Abbasi, et al.
https://arxiv.org/abs/2507.08667

The IceCube-Gen2 Collaboration -- Contributions to the 39th International Cosmic Ray Conference (ICRC2025)
IceCube-Gen2 is a planned next-generation neutrino observatory at the South Pole that builds upon the successful design of IceCube. Integrating two complementary detection technologies for neutrinos, optical and radio Cherenkov emission, in combination with a surface array for cosmic-ray air shower detection, IceCube-Gen2 will cover a broad neutrino energy range from MeV to EeV. This index of contributions to the 39th International Cosmic Ray Conference in Geneva, Switzerland (July 15-24, 2025)…

Now @… is announced by @… and he'll talk about @….
Personally I think that we can be grateful…

"Podcasts als digitales Medium in der #Wissenschaftskommunikation zur Vermittlung von #Informationskompetenz in Wissenschaftlichen #Bibliotheken": B…

Linkdump 24/2025 – #fundstücke

The Gittins Index: A Design Principle for Decision-Making Under Uncertainty
Ziv Scully, Alexander Terenin
https://arxiv.org/abs/2506.10872 https://

The Gittins Index: A Design Principle for Decision-Making Under Uncertainty
The Gittins index is a tool that optimally solves a variety of decision-making problems involving uncertainty, including multi-armed bandit problems, minimizing mean latency in queues, and search problems like the Pandora's box model. However, despite the above examples and later extensions thereof, the space of problems that the Gittins index can solve perfectly optimally is limited, and its definition is rather subtle compared to those of other multi-armed bandit algorithms. As a result, the …

*hits blunt* "what if we put the HSM... on a rotor spinning fast enough that if you rotated in a chair that fast it would Kill you" https://tches.iacr.org/index.php/TCHES/article/view/9290/8856
(via @…

Vertically Coupled Double Quantum Dots Connected In Parallel
Shinichi Amaha, Tsuyoshi Hatano, Takashi Nakajima, Seigo Tarucha
https://arxiv.org/abs/2507.09598

Vertically Coupled Double Quantum Dots Connected In Parallel
We report charge transport measurements in a ring-shaped quadruple quantum dot system, composed of two vertically coupled double quantum dots connected in parallel. The vertical coupling introduces an isospin degree of freedom tied to the layer index, and the parallel configuration enables independent access to each quantum dot pair. This design allows us to observe Coulomb diamonds and evaluate the interlayer energy offset. By extending this platform to triangular and hexagonal artificial latt…

Encoding call-by-push-value in the pi-calculus
Benjamin Bennetzen, Nikolaj Rossander Kristensen, Peter Buus Steffensen
https://arxiv.org/abs/2506.10584 htt…

Encoding call-by-push-value in the pi-calculus
In this report we define an encoding of Levys call-by-push-value lambda-calculus (CBPV) in the pi-calculus, and prove that our encoding is both sound and complete. We present informal (by-hand) proofs of soundness, completeness, and all required lemmas. The encoding is specialized to the internal pi-calculus (pi-i-calculus) to circumvent certain challenges associated with using de Bruijn index in a formalization, and it also helps with bisimulation as early-, late- and open-bisimulation coincid…

Mit etwas Abstand mal aufgeschrieben, warum mich das Handeln der CDU/CSU-Fraktion unter Spahn am Freitag aufgeschreckt hat.
https://blog.till-westermayer.de/index.php/2025/07/13/das-spahn-disaster/

Das Spahn-Disaster
Jens Spahn ist Fraktionsvorsitzender der CDU/CSU im Bundestag. So unschön das auch aus demokratietheoretischer Perspektive (freies Mandat usw.) ist: eine der zentralen Aufgaben eines Fraktionsvorsitzenden besteht darin, Mehrheiten zu organisieren. Nach den Ereignissen vom Freitag bin ich mir nicht s

Moment, which offers fixed income portfolio management software to financial institutions, raised a $36M Series B led by Index, taking its total funding to $56M (PYMNTS.com)
https://www.pymnts.com/news/investment-tracker/2025…

Moment Raises $36 Million to Automate Fixed Income Investments
Moment has raised $36 million in new funding for its fixed income automation offering. The company’s Series B round, announced Wednesday (July 9), was led

Equitable Mechanism Design for Facility Location
Toby Walsh
https://arxiv.org/abs/2506.10460 https://arxiv.org/pdf/2506.10460

Equitable Mechanism Design for Facility Location
We consider strategy proof mechanisms for facility location which maximize equitability between agents. As is common in the literature, we measure equitability with the Gini index. We first prove a simple but fundamental impossibility result that no strategy proof mechanism can bound the approximation ratio of the optimal Gini index of utilities for one or more facilities. We propose instead computing approximation ratios of the complemented Gini index of utilities, and consider how well both d…

Stanford HAI 's 2025 AI Index Report https://hai.stanford.edu/ai-index/2025-ai-index-report
'Model scale continues to grow rapidly—training compute doubles every five months, datasets every eight, and power use annually' but AI models still 'often…

Stability of the Morse Index for the $p$-harmonic Approximation of Harmonic Maps into Homogeneous Spaces
Dominik Schlagenhauf
https://arxiv.org/abs/2506.10761

Stability of the Morse Index for the $p$-harmonic Approximation of Harmonic Maps into Homogeneous Spaces
In the joint work of the author with Da Lio and Rivière (Morse Index Stability for Sequences of Sacks-Uhlenbeck Maps into a Sphere) we studied the stability of the Morse index for Sacks-Uhlenbeck sequences into spheres as $p\searrow2$. These are critical points of the energy $E_p(u) := \int_Σ\left( 1+|\nabla u|^2\right)^{p/2} \ dvol_Σ,$ where $u:Σ\rightarrow S^n$ is a map from a closed Riemannian surface $Σ$ into a sphere $ S^n$. In this paper we extend the results found in our p…

Nestled in the foothills of the Sierra Nevada Mountains near Bakersfield is Sharktooth Hill.
First documented by William P. Blake in 1853, Sharktooth Hill is one of the most significant Miocene fossil sites in the world.
Sharktooth Hill is a middle Miocene marine exposure of the Round Mountain Silt unit of the Temblor Formation.
Using magnetic stratigraphy data, the age of this unit is estimated to be around 15.2 and 16 million years old.
At this time sea levels w…

Fossil Hunting at Sharktooth Hill, California
Fossil Hunting for Shark Teeth at Shark Tooth Hill near Bakersfield, California

Heute vor 27 Jahren: Am 13. Juli 1998 fiel im armenischen #Kernkraftwerk #Mezamor während eines Tests das komplette Notkühlwasserpumpensystem (EFP) aus. Die Funktionsfähigkeit wurde nach über 6 Stunden wiederhergestellt. Keine Strahlung freigesetzt.

"Trump says EU and Mexico face 30% tariff from August"
via @…
Tariff Man on the loose again.
Tariff You

[Blog] Juste de la bash entre des Mongols et des Maures - un rapport de bataille de saga
https://debellum.hirlimann.net/index.php?post/2025/07/12/Juste-de-la-bash-entre-des-Mongols-et-des-Maures

Following Supreme Court Order on Federal Employee Layoffs, Ranking Member Markey Introduces Legislation to Prevent Workforce Cuts at the Small Business Administration (Bill Text/U.S. Committee on Small Business ...)
https://www.sbc.senate.gov/public/index.cfm/pressreleases?ID=005D76A0-BF59-4406-B83F-1F85BA0AC2CD
http://www.memeorandum.com/250711/p89#a250711p89

A novel visual data-based diagnostic approach for estimation of regime transition in pool boiling
Pranay Nirapure, Ayushman Singh, Srikanth Rangarajan, Bahgat Sammakia
https://arxiv.org/abs/2506.10832

A novel visual data-based diagnostic approach for estimation of regime transition in pool boiling
This study introduces a novel metric, the Index of Visual Similarity (IVS), to qualitatively characterize boiling heat transfer regimes using only visual data. The IVS is constructed by combining morphological similarity, through SIFT-based feature matching, with physical similarity, via vapor area estimation using Mask R-CNN. High-speed images of pool boiling on two distinct surfaces, polished copper and porous copper foam, are employed to demonstrate the generalizability of the approach. IVS …

Large-charge R\'enyi entropy
Masataka Watanabe
https://arxiv.org/abs/2506.10072 https://arxiv.org/pdf/2506.10072

Large-charge Rényi entropy
The charged (symmetry-resolved) vacuum Rényi entanglement entropy on a disk is computed in the limit of large U(1) global charge for any Rényi index. We show that it behaves universally for a broad class of conformal field theories including the O(2) Wilson-Fisher fixed-point, by using the effective field theory at large global charge. The result establishes one of the first concrete computations of entanglement quantities in strongly-coupled field theories.

Yes! Never had one, but those clones (together with Motorola, PowerComputing, and Daystar moved System 8 to Mac OS…
I just looked at the list of Mac Clones in EveryMac and there are many I never heard of!
https://everymac.com/systems/mac-clones/index-mac-clones…

Dziś dowiedziałem się, że nazywanie chrześcijańskiego Boga "wszechmogącym" to błąd w tłumaczeniu.
https://thomasjayoord.com/index.php/blog/archives/the-mistranslation-of-pantokrater-as-omnipotent

It's so weird that the Brexit UK government in buying OneWeb, after blocking UK companies from Galileo, has ended up in a tech partnership with France that became more valuable as counties started looking at non-US communications services.
https://www.…

UK Gov Boosts Eutelsat's OneWeb LEO Broadband Satellites by £140m
The UK Government has agreed to commit a further £140m (€163.3) of public investment to help Eutelsat grow and expand its constellation of OneWeb ultrafast b

Replaced article(s) found for math.DG. https://arxiv.org/list/math.DG/new/
[1/1]:
CMC hypersurface with finite index in hyperbolic space $\mathbb{H}^4$

TIL that calling the Christian God "almighty" or "omnipotent" was a mistranslation.
https://thomasjayoord.com/index.php/blog/archives/the-mistranslation-of-pantokrater-as-omnipotent

Network evolution analysis: a usage-centric approach applied on cycling infrastructure
https://josis.org/index.php/josis/article/view/379

Incredibly shocking imagery of the impact of war in Gaza, the destruction is appalling, the Groznyisation of an entire country
https://app.nos.nl/shorthand/weggevaagd-dit-blijft-over-van-gaza-in-de-ingenomen-gebieden/index.html

LLM-Powered CPI Prediction Inference with Online Text Time Series
Yingying Fan, Jinchi Lv, Ao Sun, Yurou Wang
https://arxiv.org/abs/2506.09516 https://

LLM-Powered CPI Prediction Inference with Online Text Time Series
Forecasting the Consumer Price Index (CPI) is an important yet challenging task in economics, where most existing approaches rely on low-frequency, survey-based data. With the recent advances of large language models (LLMs), there is growing potential to leverage high-frequency online text data for improved CPI prediction, an area still largely unexplored. This paper proposes LLM-CPI, an LLM-based approach for CPI prediction inference incorporating online text time series. We collect a large se…

New chart library for SQL notebook https://www.belle-nuit.com/sql-notebook/index.html?url=../site/files/chart-library.json

Zurück zu Logseq – #plattformübergreifend …

Hm das Claimen und Anmelden scheint bei der OWI-Beta (OpenWebIndex) #owi #OpenWebIndex

Het doel is duidelijk: heel Gaza moet onleefbaar gemaakt worden. Hoe beter dat lukt, hoe makkelijker de etnische zuivering.
#schurkenstaatIsrael
https://

Degree Sequence of Albertson and $\sigma$-Indices on Trees of Order $n\geqslant 3$
Jasem Hamoud, Artem Kornosov
https://arxiv.org/abs/2506.08213 https://…

Degree Sequence of Albertson and $σ$-Indices on Trees of Order $n\geqslant 3$
In this paper, we presented a study of topological indices on trees, where we show a relationship with irregularity of Albertson index and minimum, maximum degrees $δ,Δ$ of graph $G$, where contribute vital roles in determining connection, shading, component incorporation, and realisability where well-known Albertson index as: $\operatorname{irr}(G)=\sum_{uv\in E(G)}\lvert d_u(G)-d_v(G) \rvert$. The sigma index on trees that we introduced as $σ(T)=(d_1-1)^3+\sum_{i=1}^{3}(d_i-1)(d_i-2)+(d_3-…

Diffusion index forecasts under weaker loadings: PCA, ridge regression, and random projections
Tom Boot, Bart Keijsers
https://arxiv.org/abs/2506.09575 htt…

Diffusion index forecasts under weaker loadings: PCA, ridge regression, and random projections
We study the accuracy of forecasts in the diffusion index forecast model with possibly weak loadings. The default option to construct forecasts is to estimate the factors through principal component analysis (PCA) on the available predictor matrix, and use the estimated factors to forecast the outcome variable. Alternatively, we can directly relate the outcome variable to the predictors through either ridge regression or random projections. We establish that forecasts based on PCA, ridge regres…

I may be one of a very small handful of people that has noticed, and probably one of even a smaller number that cares (but I don't really)...
Let's say you want to fetch the historic 2011-12-31 Internet number assignment data/stats from APNIC. You go to: https://ftp.apnic.net/stats/apnic/2011/

“A Remarkable Man” Book Review
Dr. Suntaro Hida From Hiroshima to Fukushima by Marc Petitjean translated by Ariana Hunter published by Other Press New York Hardback 170 pages no index - also available as an ebook On August 6, 1945 the US Airforce dropped the first atomic bomb on Hiroshima. Dr Hida was seven kilometers away but he headed straight towards the huge pillar of fire.

“A Remarkable Man” Book Review
Dr. Suntaro Hida From Hiroshima to Fukushima by Marc Petitjean translated by Ariana Hunter published by Other Press New York Hardback 170 pages no index – also available as an ebook On August…

WS4 High Temp Alert:Temp 99.7°F Humidity:46 % Heat Index:113.6°F #WS4 #STATUS

Large-scale quantization of trace I: Finite propagation operators
Matthias Ludewig, Guo Chuan Thiang
https://arxiv.org/abs/2506.10957 https://

Large-scale quantization of trace I: Finite propagation operators
Inspired by parallel developments in coarse geometry in mathematics and exact macroscopic quantization in physics, we present a family of general trace formulae which are universally quantized and depend only on large-scale geometric features of the input data. They generalize, to arbitrary dimensions, formulae found by Roe in his partitioned manifold index theorem, as well as the Kubo and Kitaev formulae for 2D Hall conductance used in physics.

Electrodynamics in curved spacetime: Gravitationally-induced constitutive equations and the spacetime index of refraction
F. Masghatian, M. Esfandiar, M. Nouri-Zonoz
https://arxiv.org/abs/2507.06475

Electrodynamics in curved spacetime: Gravitationally-induced constitutive equations and the spacetime index of refraction
Previous studies on spacetime index of refraction are mostly restricted to the static spacetimes. In this study we fill this gap by introducing the refractive index for full stationary spacetimes, employing three different approaches. These include applying Fermat's principle, employing the classical definition of refractive index, and using gravitationally-induced constitutive equations. These calculations are carried out in both threading and slicing spacetime decomposition formalisms, and th…

#FotoDerWoche mit Vollmond.
https://blog.till-westermayer.de/index.php/2025/07/12/photo-of-the-week-summer-moon/

Photo of the week: Summer moon
Nur der Vollmond Anfang Juni, in diesem Sommer groß und gelblich leuchtend, und auch wenn das zu einem guten Teil optische Täuschung ist, doch immer einen Blick wert.

LEANN: A Low-Storage Vector Index
Yichuan Wang, Shu Liu, Zhifei Li, Yongji Wu, Ziming Mao, Yilong Zhao, Xiao Yan, Zhiying Xu, Yang Zhou, Ion Stoica, Sewon Min, Matei Zaharia, Joseph E. Gonzalez
https://arxiv.org/abs/2506.08276

LEANN: A Low-Storage Vector Index
Embedding-based search is widely used in applications such as recommendation and retrieval-augmented generation (RAG). Recently, there is a growing demand to support these capabilities over personal data stored locally on devices. However, maintaining the necessary data structure associated with the embedding-based search is often infeasible due to its high storage overhead. For example, indexing 100 GB of raw data requires 150 to 700 GB of storage, making local deployment impractical. Reducing…

Down But Not Out: The Case of Long-Period Comet C/2021 O3 (Panstarrs)
David Jewitt. Jing Li, Michael Jaeger, Yoonyoung Kim
https://arxiv.org/abs/2506.09263

Down But Not Out: The Case of Long-Period Comet C/2021 O3 (Panstarrs)
We combine ground- and space-based observations of long-period comet C/2021 O3 (Panstarrs) (perihelion distance 0.287 au) in order to investigate its reported near-perihelion destruction. Pre-perihelion photometric observations show a remarkably small heliocentric dependence of the scattered light, $\propto r_H^{-s}$ with $s = 2.59\pm0.21$, distinct from values reported in other long-period comets, for which $s$ = 4 is the canonical standard. The index is smaller than expected of coma productio…

»Bislang ist nicht erkennbar, dass aus den möglichen Bruchlinien ein herausfordernder Widerstand im eigenen Lager erwachsen würde.« - Erhellender Beitrag von Martin Kronauer zu den Entwicklungen in den USA als Online-First bei @…

Elite Polarization in European Parliamentary Speeches: a Novel Measurement Approach Using Large Language Models
Gennadii Iakovlev
https://arxiv.org/abs/2507.06658

Elite Polarization in European Parliamentary Speeches: a Novel Measurement Approach Using Large Language Models
This project introduces a new measure of elite polarization via actor and subject detection using artificial intelligence. I identify when politicians mention one another in parliamentary speeches, note who is speaking and who is being addressed, and assess the emotional temperature behind these evaluations. This maps how elites evaluate their various out-parties, allowing us to create an index of mutual out-party hostility, that is, elite polarization. While I analyzed polarization data over t…

Artificial Analysis' benchmarks show Grok 4 is the leading AI model, a first for xAI, and its per-token pricing is more expensive than Gemini 2.5 Pro and o3 (@artificialanlys)
https://x.com/artificialanlys/status/1943166841150644622

Artificial Analysis (@ArtificialAnlys) on X
xAI gave us early access to Grok 4 - and the results are in. Grok 4 is now the leading AI model. We have run our full suite of benchmarks and Grok 4 achieves an Artificial Analysis Intelligence Index of 73, ahead of OpenAI o3 at 70, Google Gemini 2.5 Pro at 70, Anthropic Claude

Multi-entropy and the Dihedral Measures at Quantum Critical Points
Jonathan Harper, Ali Mollabashi, Tadashi Takayanagi, Kenya Tasuki
https://arxiv.org/abs/2506.10396

Multi-entropy and the Dihedral Measures at Quantum Critical Points
The multi-entropy and dihedral measures are a class of tractable measures for multi-partite entanglement, which are labeled by the Rényi index (or replica number) $n$ as in the Rényi entanglement entropy. The purpose of this article is to demonstrate that these quantities are new useful probes of quantum critical points by examining concrete examples. In particular, we compute the multi-entropy and dihedral measures in the $1+1$ dimensional massless free scalar field theory on a lattice and i…

Results on Colored Tree Properties
Gabriel Day
https://arxiv.org/abs/2507.06977 https://arxiv.org/pdf/2507.06977

Results on Colored Tree Properties
In this paper, we introduce novel variations on several well-known model-theoretic tree properties, and prove several equivalences to known properties. Motivated by the study of generalized indiscernibles, we introduce the notion of the $\calI$-tree property ($\calI$-TP), for an arbitrary Ramsey index structure $\calI$. We focus attention on the colored linear order index structure \textbf{c}, showing that \textbf{c}-TP is equivalent to instability. After introducing \textbf{c}-$\TPi$ and \text…

Hierarchical Lexical Graph for Enhanced Multi-Hop Retrieval
Abdellah Ghassel, Ian Robinson, Gabriel Tanase, Hal Cooper, Bryan Thompson, Zhen Han, Vassilis N. Ioannidis, Soji Adeshina, Huzefa Rangwala
https://arxiv.org/abs/2506.08074

Hierarchical Lexical Graph for Enhanced Multi-Hop Retrieval
Retrieval-Augmented Generation (RAG) grounds large language models in external evidence, yet it still falters when answers must be pieced together across semantically distant documents. We close this gap with the Hierarchical Lexical Graph (HLG), a three-tier index that (i) traces every atomic proposition to its source, (ii) clusters propositions into latent topics, and (iii) links entities and relations to expose cross-document paths. On top of HLG we build two complementary, plug-and-play ret…

It's still raw and rough but one or two people asked about using some of the graphics I've been creating lately... so here they are.
Use them, no license, no credit needed. Just don't be a bad person, cool?
http://apps.2xlnetworks.net/files/
I will add a pretty index at some po…

Hindsight….

Validation of the Critical Reflection and Agency in Computing Index: Do Computing Ethics Courses Make a Difference?
Aadarsh Padiyath, Casey Fiesler, Mark Guzdial, Barbara Ericson
https://arxiv.org/abs/2506.06193

Validation of the Critical Reflection and Agency in Computing Index: Do Computing Ethics Courses Make a Difference?
Computing ethics education aims to develop students' critical reflection and agency. We need validated ways to measure whether our efforts succeed. Through two survey administrations (N=474, N=464) with computing students and professionals, we provide evidence for the validity of the Critical Reflection and Agency in Computing Index. Our psychometric analyses demonstrate distinct dimensions of ethical development and show strong reliability and construct validity. Participants who completed com…

Anomaly diagnosis via symmetry restriction in two-dimensional lattice systems
Kyle Kawagoe, Wilbur Shirley
https://arxiv.org/abs/2507.07430 https://…

Anomaly diagnosis via symmetry restriction in two-dimensional lattice systems
We describe a method for computing the anomaly of any finite unitary symmetry group $G$ acting by finite-depth quantum circuits on a two-dimensional lattice system. The anomaly is characterized by an index valued in the cohomology group $H^4(G,U(1))$, which generalizes the Else-Nayak index for locality preserving symmetries of quantum spin chains. We show that a nontrivial index precludes the existence of a trivially gapped symmetric Hamiltonian; it is also an obstruction to ``onsiteability" of…

Für die Samstagsnachmittagscrew nochmal der Link auf meine SF-/F-Lektüre aus dem Juni 2025 ... das eine oder andere wäre vielleicht auch als Urlaubslektüre geeignet.
https://blog.till-westermayer.de/index.php/2025/07/08/science-fic…

Science Fiction und Fantasy im Juni (und z.T. Juli) 2025
Eigentlich hatte ich mir vorgenommen, mir noch weitere Texte für den Hugo anzugucken und einen etwas differenzierteren Stimmzettel abzugeben. Heruntergeladen habe ich das Hugo-Voting-Paket schon mal, und bis zur finalen Abstimmung am 23. Juli ist eigentlich auch noch etwas Zeit. We will see. Bei der

Linkdump 28/2025 – #fundstücke

SQL Notebook: Random cluster in PostScript
https://www.belle-nuit.com/sql-notebook/index.html?url=../site/files/random-cluster.json

A pictures says more than 1000 words. How much more can an audio representation of your data tell you? #rstats

sonify: Data Sonification - Turning Data into Sound
Sonification (or audification) is the process of representing data by sounds in the audible range. This package provides the R function sonify() that transforms univariate data, sampled at regular or irregular intervals, into a continuous sound with time-varying frequency. The ups and downs in frequency represent the ups and downs in the data. Sonify provides a substitute for R's plot function to simplify data analysis for the visually impaired.

On the Estrada Index and Spectral Properties of $k$-Uniform Hypergraphs
Liya Jess Kurian, Chithra A. V
https://arxiv.org/abs/2507.06322 https://

On the Estrada Index and Spectral Properties of $k$-Uniform Hypergraphs
Various properties of a hypergraph can be explored through its spectrum. In this paper,we estimate the bound for the sum of $t,\,t\in[1,n]$, largest eigenvalues of a $k$-uniform hypergraph of order $n$. Also, we characterize the $k$-uniform hypergraph with two distinct eigenvalues. We establish bounds for the Estrada index of $k$-uniform hypergraphs based on their number of edges, order and energy. In addition, we obtain the second largest Estrada index among the unicyclic hypergraphs.

Morse Index Stability of Branched Willmore Immersions
Alexis Michelat
https://arxiv.org/abs/2506.09005 https://arxiv.org/pdf/2506.090…

Morse Index Stability of Branched Willmore Immersions
We show the Morse index stability for sequences of Willmore immersions of bounded energy without assuming that the limiting immersion and the bubbles are free of branch points.

WS4 High Temp Alert:Temp 99.7°F Humidity:46 % Heat Index:113.6°F #WS4 #STATUS

Datadog is joining the S&P 500, replacing Juniper Networks after HPE acquired Juniper, before trading on July 9; DDOG jumps 10% after hours (Jordan Novet/CNBC)
https://www.cnbc.com/2025/07/02/datadog-stock-jumps-sp-500-index-inclusion.html

Datadog stock jumps 10% on tech company’s inclusion in S&P 500 index
Hewlett Packard Enterprise's closing of its Juniper deal created an opening in the index, which has added several technology companies in recent months.

Great to learn about crowdsourcing Latin American digital archives collecting records about the COVID-19 pandemic https://revista.arquivonacional.gov.br/index.php/revistaacervo/article/download/2297/2361?inline=1 by Ian Kisil…

[Blog] Woodland Indian Tribes
#figurines #indiens #wargaming #guerreducanada

Evaluating Learned Indexes in LSM-tree Systems: Benchmarks,Insights and Design Choices
Junfeng Liu, Jiarui Ye, Mengshi Chen, Meng Li, Siqiang Luo
https://arxiv.org/abs/2506.08671 …

Evaluating Learned Indexes in LSM-tree Systems: Benchmarks,Insights and Design Choices
LSM-tree-based data stores are widely used in industry due to their exceptional performance. However, as data volumes grow, efficiently querying large-scale databases becomes increasingly challenging. To address this, recent studies attempted to integrate learned indexes into LSM-trees to enhance lookup performance, which has demonstrated promising improvements. Despite this, only a limited range of learned index types has been considered, and the strengths and weaknesses of different learned i…

"Linkding – Bookmark-Manager nach dem Ende von Pocket nutzen" https://digital-cleaning.de/index.php/linkding-bookmark-manager-nach-dem-ende-von-pocket-nutzen/

Linkdump 19/2025 – #fundstücke

I've been remiss in posting Toy Camera photos but I've added some new ones!
➡️ http://photos.rasterweb.net/index.php?/category/33
#ShittyCameraChallenge…

Samsung unveils $349 Galaxy Watch 8 in 40mm and 44mm sizes and $499 Watch 8 Classic in 46mm, with Gemini and an Antioxidant Index to measure carotenoid levels (Andrew Romero/9to5Google)
https://9to5google.com/2025/07/09/galaxy-watch-8…

Galaxy Watch 8 and Watch 8 Classic go official with new design & Gemini for $349
The Galaxy Watch 8 series is finally official. Amongst some serious design changes, Samsung has added a slew of features...

Getting started with Shiny to make interactive web-apps with R: #rstats

Overview | Building Web Apps with R Shiny
This class will teach you the basics of Shiny app programming, giving you skills that will form the basis of almost any app you want to build. By the end of the class, you will have created a custom app that collects and saves data, allows users to dynamically visualize the data, and produces downloadable reports.

Multicentered black hole saddles for supersymmetric indices
Jan Boruch, Luca V. Iliesiu, Sameer Murthy, Gustavo J. Turiaci
https://arxiv.org/abs/2507.07166

Multicentered black hole saddles for supersymmetric indices
The supersymmetric index in string theory can sometimes have a discontinuous integer-valued jump at co-dimension one surfaces in moduli space called walls of marginal stability. When the index counts black hole microstates, crossing such walls of marginal stability amounts to the appearance or disappearance of a large number of such states. While wall-crossing has been understood in string theory and through the disappearance of extremal Lorentzian supergravity solutions as the moduli are varie…

Extremal Zagreb indices of bicyclic hypergraphs
Hong Zhou, Changjiang Bu
https://arxiv.org/abs/2506.08875 https://arxiv.org/pdf/2506.…

Extremal Zagreb indices of bicyclic hypergraphs
The Zagreb index of a hypergraph is defined as the sum of the squares of the degrees of its vertices. A connected $k$-uniform hypergraph with $n$ vertices and $m$ edges is called bicyclic if $n=m(k-1)-1$. In this paper, we determine the hypergraphs with the maximum and minimum Zagreb indices among all linear bicyclic uniform hypergraphs.

Scattering theory on Riemann surfaces I: Schiffer operators, cohomology, and index theorems
Eric Schippers, Wolfgang Staubach
https://arxiv.org/abs/2506.08160

Scattering theory on Riemann surfaces I: Schiffer operators, cohomology, and index theorems
We consider a compact Riemann surface $\mathscr{R}$ with a complex of non-intersecting Jordan curves, whose complement is a pair of Riemann surfaces with boundary, each of which may be possibly disconnected. We investigate conformally invariant integral operators of Schiffer, which act on $L^{2}$ anti-holomorphic one-forms on one of these surfaces with boundary and produce holomorphic one-forms on the disjoint union. These operators arise in potential theory, boundary value problems, approximat…

Bloggende und ihre Motivation – Was uns antreibt – https://www.deimeke.net/dirk/blog/index.php?/archives/4395-Bloggende-und-ihre-Motivation-Was-uns-antreibt.html

Statistics on $\ell$-interval parking functions
Kyle Celano, Jennifer Elder, Kimberly P. Hadaway, Pamela E. Harris, Jeremy L. Martin, Amanda Priestley, Gabe Udell
https://arxiv.org/abs/2507.07243

Statistics on $\ell$-interval parking functions
The displacement of a car with respect to a parking function is the number of spots it must drive past its preferred spot in order to park. An $\ell$-interval parking function is one in which each car has displacement at most $\ell$. Among our results, we enumerate $\ell$-interval parking functions with respect to statistics such as inversion, displacement, and major index. We show that $1$-interval parking functions with fixed displacement exhibit a cyclic sieving phenomenon. We give closed fo…

Ach ja. Science Fiction und Fantasy, die ich im Juni (und den ersten Juli-Tagen) gelesen habe, gibt es auch noch. Zeitreisen, Space Opera, Klimakatastrophen, die ganz ferne Zukunft der Menschheit und Kairo 1912 sind alle mit dabei.
https://blog.till-westermayer.…

Science Fiction und Fantasy im Juni (und z.T. Juli) 2025
Eigentlich hatte ich mir vorgenommen, mir noch weitere Texte für den Hugo anzugucken und einen etwas differenzierteren Stimmzettel abzugeben. Heruntergeladen habe ich das Hugo-Voting-Paket schon mal, und bis zur finalen Abstimmung am 23. Juli ist eigentlich auch noch etwas Zeit. We will see. Bei der

Argyres-Douglas Theories, Macdonald Indices and Arc Space of Zhu Algebra
George Andrews, Anindya Banerjee, Chinmaya Bhargava, Ranveer Kumar Singh, Runkai Tao
https://arxiv.org/abs/2507.06294

Argyres-Douglas Theories, Macdonald Indices and Arc Space of Zhu Algebra
In this paper, we relate the MacDonald index of a 4d $\mathcal{N}=2$ SCFT with the Hilbert series of the arc space of the Zhu algebra of the corresponding Schur VOA. Using this, we conjecture a simple formula for the MacDonald index of $(A_1,D_{2n+1})$ Argyres-Douglas theory. We perform checks of the formula against the known Schur limits and RG flows. To match the Schur limit, we prove new $q$-series identities.

Mein schönstes selbstgemachtes Bild – Ein Blick zurück – https://www.deimeke.net/dirk/blog/index.php?/archives/4411-Mein-schoenstes-selbstgemachtes-Bild-Ein-Blick-zurueck.html

#FotoDerWoche aus dem in den letzten Tagen etwas regnerischen Garten.
https://blog.till-westermayer.de/index.php/2025/06/07/photo-of-the-week-fo…

Photo of the week: Forest strawberries
Nach und nach beginnt im Garten jetzt die Zeit der Ernte. Die letzten Wochen: überall Walderdbeeren und ein bisschen Rhabarber. Inzwischen sind die Johannisbeeren reif, die Stachelbeeren und absehbar auch die Kirschen machen sich bereit, und bei den Himbeeren lässt sich zumindest schon ahnen, dass d

Edinburgh-based Wordsmith, whose AI tools help legal teams automate contract and policy reviews, raised a $25M Series A led by Index Ventures (Kyt Dotson/SiliconANGLE)
https://siliconangle.com/2025/06/04/wordsmith-ai-raises-25m-build-legal-a…

Wordsmith AI raises $25M to build legal AI for in-house teams - SiliconANGLE
Wordsmith AI raises $25M to build legal AI for in-house teams - SiliconANGLE

This https://arxiv.org/abs/2505.10090 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Sombor index of clean graphs
Let $G = (V, E)$ be a graph with the vertex set $V (G)$ and edge set $E(G)$. The Sombor index of $G$, $SO(G)$, is defined as $\sum_{uv\in E(G)} \sqrt{deg(u)^2 + deg(v)^2}$, where $deg(u)$ is the degree of vertex $u$ in $V (G)$. The clean graph of a ring R, denoted by $Cl(R)$, is a graph with vertex set $\{(e, u) : e \in Id(R), u \in U(R)\}$ and two distinct vertices $(e, u)$ and$(f, v)$ are adjacent if and only if $ef = 0$ or $uv = 1$ ($Id(R)$ and $U(R)$ are the sets of idempotents and unit ele…

Linkdump 23/2025 – #fundstücke

Signless Laplacian index conditions for doubly chorded cycles in graphs with given order
Jin Cai, Bo Zhou
https://arxiv.org/abs/2507.05570 https://

Signless Laplacian index conditions for doubly chorded cycles in graphs with given order
In this paper, we show that for a graph of order $n$, where $n\ge 5$, if the signless Laplacian index is larger than or equal to certain value depending on $n$, then the graph contains a doubly chorded cycle, where the chords incident to a common vertex, unless it is two specified graphs.

Tel Aviv-based Wonderful, which develops customer support AI agents for businesses in non-English speaking countries, raised a $34M seed led by Index Ventures (Yuliya Chernova/Wall Street Journal)
https://www.wsj.com/articles/wonderfu…

Linkdump 27/2025 – #fundstücke

Bloggen – Mehr als nur Texte im Netz – https://www.deimeke.net/dirk/blog/index.php?/archives/4401-Bloggen-Mehr-als-nur-Texte-im-Netz.html

Linkdump 18/2025 – #fundstücke