Tootfinder

Sparrow, which uses AI to consolidate fragmented leave management processes, raised a $35M Series B led by Silver Lake Waterman, for $64M in total funding (Michael Nuñez/VentureBeat)
https://venturebeat.com/ai/sparrow-raises-35m-ser…

Sparrow raises $35M Series B to automate the employee leave management nightmare
Sparrow raises $35M Series B to scale AI-powered employee leave management platform that has grown 14x since 2021, serving 1,000+ companies and saving $200M in payroll costs.

On Thursday 03.07. I'll have the honor of giving a talk with @… on "Fascist AI" in the "Loops" series of events (https://www.newpractice.net/loops

Loops Series
The Loops Event Series brings together perspectives on Art and Technology in relation to current challenges facing society. The event series is supported by the Berlin University Alliance.

I have published a silly Death Stranding 2 (free) subscriber-only post: https://marginally.ghost.io/a-series-of-cringe-alternate-titles-for-ds2/

A Series of Cringe Alternate Titles for DS2
Grasping increments by the root.

Resurgent Lambert series with characters
David Broadhurst, Daniele Dorigoni
https://arxiv.org/abs/2507.21352 https://arxiv.org/pdf/2507.21352

Resurgent Lambert series with characters
We consider certain Lambert series as generating functions of divisor sums twisted by Dirichlet characters and compute their exact resurgent transseries expansion near $q=1^-$. For special values of the parameters, these Lambert series are expressible in terms of iterated integrals of holomorphic Eisenstein series twisted by the same characters and the transseries representation is a direct consequence of the action of Fricke involution on such twisted Eisenstein series. When the parameters of …

Compositionality in Time Series: A Proof of Concept using Symbolic Dynamics and Compositional Data Augmentation
Michael Hagmann, Michael Staniek, Stefan Riezler
https://arxiv.org/abs/2508.20656

Compositionality in Time Series: A Proof of Concept using Symbolic Dynamics and Compositional Data Augmentation
This work investigates whether time series of natural phenomena can be understood as being generated by sequences of latent states which are ordered in systematic and regular ways. We focus on clinical time series and ask whether clinical measurements can be interpreted as being generated by meaningful physiological states whose succession follows systematic principles. Uncovering the underlying compositional structure will allow us to create synthetic data to alleviate the notorious problem of…

Winnipeg-based Conquest Planning, which uses AI to help financial advisors and other clients make decisions, raised an $80M Series B led by Goldman Sachs (Jon Fingas/BetaKit)
https://betakit.com/conquest-planning-

Conquest Planning raises $110-million Series B to fuel US expansion of its financial management platform | BetaKit
Growth Equity at Goldman Sachs Alternatives led the Winnipeg startup’s latest funding round.

Watermarking Large Language Model-based Time Series Forecasting
Wei Yuan, Chaoqun Yang, Yu Xing, Tong Chen, Nguyen Quoc Viet Hung, Hongzhi Yin
https://arxiv.org/abs/2507.20762 h…

Watermarking Large Language Model-based Time Series Forecasting
Large Language Model-based Time Series Forecasting (LLMTS) has shown remarkable promise in handling complex and diverse temporal data, representing a significant step toward foundation models for time series analysis. However, this emerging paradigm introduces two critical challenges. First, the substantial commercial potential and resource-intensive development raise urgent concerns about intellectual property (IP) protection. Second, their powerful time series forecasting capabilities may be …

Failure Risk Prediction in a MOOC: A Multivariate Time Series Analysis Approach
Anass El Ayady (Crem, IRIMAS), Maxime Devanne (IRIMAS), Germain Forestier (IRIMAS), Nour El Mawas (Crem)
https://arxiv.org/abs/2507.21118

Failure Risk Prediction in a MOOC: A Multivariate Time Series Analysis Approach
MOOCs offer free and open access to a wide audience, but completion rates remain low, often due to a lack of personalized content. To address this issue, it is essential to predict learner performance in order to provide tailored feedback. Behavioral traces-such as clicks and events-can be analyzed as time series to anticipate learners' outcomes. This work compares multivariate time series classification methods to identify at-risk learners at different stages of the course (after 5, 10 weeks, …

👕 AFC East, NFC West reveal 'Rivalries' uniforms https://www.espn.com/nfl/story/_/id/46091459/nfl-nike-2025-rivalries-uniform-gear-series-unveiling-nfc-west-afc-east

Quantum generative modeling for financial time series with temporal correlations
David Dechant, Eliot Schwander, Lucas van Drooge, Charles Moussa, Diego Garlaschelli, Vedran Dunjko, Jordi Tura
https://arxiv.org/abs/2507.22035

Quantum generative modeling for financial time series with temporal correlations
Quantum generative adversarial networks (QGANs) have been investigated as a method for generating synthetic data with the goal of augmenting training data sets for neural networks. This is especially relevant for financial time series, since we only ever observe one realization of the process, namely the historical evolution of the market, which is further limited by data availability and the age of the market. However, for classical generative adversarial networks it has been shown that genera…

Single-exponential bounds for diagonals of D-finite power series
Shaoshi Chen, Fr\'ed\'eric Chyzak, Pingchuan Ma, Chaochao Zhu
https://arxiv.org/abs/2506.22011

Single-exponential bounds for diagonals of D-finite power series
D-finite power series appear ubiquitously in combinatorics, number theory, and mathematical physics. They satisfy systems of linear partial differential equations whose solution spaces are finite-dimensional, which makes them enjoy a lot of nice properties. After attempts by others in the 1980s, Lipshitz was the first to prove that the class they form in the multivariate case is closed under the operation of diagonal. In particular, an earlier work by Gessel had addressed the D-finiteness of th…

Series B, Episode 02 - Shadow
GAN: The manual controls won't respond.
VILA: Do something, Gan.
GAN: Something is draining off the power. [Lights dim]
VILA: Orac, it has to be Orac.
https://blake.torpidity.net/m/202/565 B7B3

This https://arxiv.org/abs/2407.06390 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

JANET: Joint Adaptive predictioN-region Estimation for Time-series
Conformal prediction provides machine learning models with prediction sets that offer theoretical guarantees, but the underlying assumption of exchangeability limits its applicability to time series data. Furthermore, existing approaches struggle to handle multi-step ahead prediction tasks, where uncertainty estimates across multiple future time points are crucial. We propose JANET (Joint Adaptive predictioN-region Estimation for Time-series), a novel framework for constructing conformal predic…

Tropical linear series and matroids
Chih-Wei Chang, Matthew Dupraz, Hernan Iriarte, David Jensen, Dagan Karp, Sam Payne, Jidong Wang
https://arxiv.org/abs/2508.20062 https://

Tropical linear series and matroids
We study a notion of tropical linear series on metric graphs that combines two essential properties of tropicalizations of linear series on algebraic curves: the Baker-Norine rank and the independence rank. Our main results relate the local and global geometry of these tropical linear series to the combinatorial geometry of matroids and valuated matroids, respectively. As an application, we characterize exactly when the tropicalization of the canonical linear series on a single curve is equal t…

Multiplier varieties and multiplier algebras of CNP Dirichlet series kernels
Hamidul Ahmed, B. Krishna Das, Chaman Kumar Sahu
https://arxiv.org/abs/2507.21537 https://

Multiplier varieties and multiplier algebras of CNP Dirichlet series kernels
We investigate isometric and algebraic isomorphism problems for multiplier algebras associated with Hilbert spaces of Dirichlet series whose kernels possess the complete Nevanlinna-Pick (CNP) property. We begin by providing a complete characterization of all normalized CNP Dirichlet series kernels in terms of weight and frequency data. A central aspect of our work is the explicit determination of the multiplier varieties associated with CNP Dirichlet series kernels. We show that these varieties…

Detection of a Sparse Change in High-Dimensional Time Series
Jingyan Huang
https://arxiv.org/abs/2507.21442 https://arxiv.org/pdf/2507.21442

Detection of a Sparse Change in High-Dimensional Time Series
Consider the detection of a sparse change in high-dimensional time-series. We introduce Sparsity Likelihood-based (SL-based) score and the change-points detection procedure in multivariate normal model with general covariance structure. SL-based algorithm is proved to achieve that supremum of error probabilities converges to 0. We run the simulation studies for SL-based algorithm and also illustrate its applications to a S&P500 dataset.

dq Modeling for Series-Parallel Compensated Wireless Power Transfer Systems
Zixuan Jiang
https://arxiv.org/abs/2507.20921 https://arxiv.org/pdf/2507.20921

dq Modeling for Series-Parallel Compensated Wireless Power Transfer Systems
Series-parallel (SP) compensated wireless power transfer (WPT) systems are widely used in some specific scenarios, such as bioelectronics and portable electronics. However, most studies are based on the phasor method and focused on the steady-state analysis, which may overlook the transient process of systems. Accordingly, inspired by the notion of coordinate transformation in the field of motor drive, this work develops a dq modeling method for SP compensated WPT systems. The proposed model ef…

On Identifying Why and When Foundation Models Perform Well on Time-Series Forecasting Using Automated Explanations and Rating
Michael Widener, Kausik Lakkaraju, John Aydin, Biplav Srivastava
https://arxiv.org/abs/2508.20437

On Identifying Why and When Foundation Models Perform Well on Time-Series Forecasting Using Automated Explanations and Rating
Time-series forecasting models (TSFM) have evolved from classical statistical methods to sophisticated foundation models, yet understanding why and when these models succeed or fail remains challenging. Despite this known limitation, time series forecasting models are increasingly used to generate information that informs real-world actions with equally real consequences. Understanding the complexity, performance variability, and opaque nature of these models then becomes a valuable endeavor to…

A Chebyshev--Jackson series based block SS--RR algorithm for computing partial eigenpairs of real symmetric matrices
Zhongxiao Jia, Tianhang Liu
https://arxiv.org/abs/2508.20456

A Chebyshev--Jackson series based block SS--RR algorithm for computing partial eigenpairs of real symmetric matrices
This paper considers eigenpair computations of large symmetric matrices with the desired eigenvalues lying in a given interval using the contour integral-based block SS--RR method, a Rayleigh--Ritz projection onto a certain subspace generated by moment matrices. Instead of using a numerical quadrature to approximately compute the moments by solving a number of large shifted complex linear systems at each iteration, we make use of the Chebyshev--Jackson (CJ) series expansion to approximate the m…

2-dimensional TFTs via modular $\infty$-operads
Jan Steinebrunner
https://arxiv.org/abs/2506.22104 https://arxiv.org/pdf/2506.22104…

2-dimensional TFTs via modular $\infty$-operads
This lecture series is based on joint work in progress with Shaul Barkan, as well as work in progress of the author. The five sections of these notes correspond to the five lectures, but more details have been added. $2$-dimensional topological field theories ($2$D TFTs) valued in vector spaces are commutative Frobenius algebras. The goal of this lecture series is to generalize from the $1$-category of vector spaces to any symmetric monoidal $\infty$-category $\mathcal{C}$, i.e. to study symm…

dutch_school: Dutch school friendships (2003)
A series of snapshots of the friendships among freshmen at secondary school in The Netherlands, in 2003-2004. Friendship ties were surveyed four times, at three month intervals. The direction of an edge indicates that student i is friends with student j. Missing data is coded as 0 or 10. Metadata includes sex, age, ethnicity, and religion.
This network has 26 nodes and 91 edges.
Tags: Social, Offline, Unweighted, Metadata, Tempo…

VisiTrail: A Cognitive Visualization Tool for Time-Series Analysis of Eye Tracking Data from Attention Game
Abdul Rehman, Ilona Heldal, Jerry Chun-Wei Lin
https://arxiv.org/abs/2508.20522

VisiTrail: A Cognitive Visualization Tool for Time-Series Analysis of Eye Tracking Data from Attention Game
Eye Tracking (ET) can help to understand visual attention and cognitive processes in interactive environments. In attention tasks, distinguishing between relevant target objects and distractors is crucial for effective performance, yet the underlying gaze patterns that drive successful task completion remain incompletely understood. Traditional gaze analyses lack comprehensive insights into the temporal dynamics of attention allocation and the relationship between gaze behavior and task perform…

Woof. 5 years since I kicked off my “[overlay] Will Get You Sued” series, which helped lead to a million dollar fine earlier this year by the FTC against accessiBe for its constant lies.
https://bsky.app/profile/overlaytimeline.com/post/3lss6jbuwec27

A series involving a product of four consecutive harmonic numbers
Wilson J. Chen, Vincent Nguyen
https://arxiv.org/abs/2507.19502 https://arxiv.org/pdf/250…

A series involving a product of four consecutive harmonic numbers
In correspondence with Goldbach, Euler began investigating series of the form $\sum_{k \geq 1} k^{-m}\left(1 + 2^{-n} + \cdots + k^{-n}\right)$, which are known today as Euler sums. For the case where $n=1$ and $m \geq 2$, Euler was able to obtain a closed form in terms of zeta values. We use elementary techniques in the spirit of Euler to evaluate the series $\sum_{k \geq 1} \frac{H_k H_{k+1} H_{k+2} H_{k+3}}{k(k+1)(k+2)(k+3)},$ where $H_k := 1 + \frac{1}{2} + \cdots + \frac{1}{k}$ is the $k…

Police in southern California arrested a man suspected of posing as a federal immigration officer this week, the latest in a series of such arrests, as masked, plainclothes immigration agents are deployed nationwide to meet the Trump administration’s mass deportation targets.
The man, Fernando Diaz, was arrested by Huntington Park police after officers said they found a loaded gun and official-looking documents with Department of Homeland Security headings in his SUV, according to NBC …

Documentary series American Experience begins an abbreviated schedule after WGBH suspended its production and laid off 13 staffers amid US federal funding cuts (Mike Hale/New York Times)
https://www.nytimes.com/2025/08/27/arts/television/american-experience.html…

As PBS Stations Confront Cuts, American History Takes a Hit
The documentary series “American Experience” begins an abbreviated schedule this week. A victim of the federal funding take-back, it has suspended production and laid off its staff.

Initial curve25519 accelerator refactoring update: added new MULT_AREA_OPT parameter.
0 = existing implementation (best for 7 series)
1 = resource sharing between constant and variable multipliers, but still does 32 16x32 multiplies per clock. Much slower on 7 series due to DSP cascade, but hits the same 71 MHz Fmax on Trion.
Fabric usage on Trion is slightly higher (9528 -> 10613 LE) but multiplier block usage is down from 96 to 66.
Next step will be trying to fig…

#Lenovo product line is really a mess.
2-in-1 vs. Yoga: c'mon, settle for one term.
Yoga devices that actually do not provide the Yoga-flip thing. 🤷
X13 series that typically got multi-touch pen/stylus where some very rare products do have multi-touch, an empty(!) pen slot and no pen support within the display. 🤦‍♂️
Poor or no information on notebook models when you use…

The film Blade Runner: poetic, beautiful and full of philosophy, with a fabulous cast and effects, has been a touchstone since it came out in 1982.
With misgivings I watched the profit-seeking 2017 attempt to milk the reverence in which the first film is held. It had its moments, but IMO it is largely a mediocre film.
Can we not leave perfection alone? Now, there's going to be a friggin TV series 😑

Blade Runner makes its live-action return next year
New series will star Michelle Yeoh and take place 50 years after the 2017 film.

Evaluating Isoreticular Series of CALF-20 for Biogas Upgrading using a Pressure/Vacuum Swing Adsorption (PVSA) Process
Changdon Shin, Sunghyun Yoon, Yongchul G. Chung
https://arxiv.org/abs/2507.21126

Evaluating Isoreticular Series of CALF-20 for Biogas Upgrading using a Pressure/Vacuum Swing Adsorption (PVSA) Process
Cyclic swing adsorption processes, such as pressure vacuum swing adsorption (PVSA), have emerged as a promising technology for upgrading biogas by separating carbon dioxide (CO2) from methane (CH4). The rational design of adsorbent materials with tailored properties is important for deployment of high-performance PVSA technology. Metal-organic frameworks (MOFs), particularly the CALF-20 isoreticular series, have attracted interest due to their high CO2 selectivity, thermal and water stability. …

I love Mortal Engines and i love reading stories in that universe. If you like those perfect books you will also enjoy this. Not on the same level as the OG series.
#books #reading

No Top of the Pops tonight and I'm far too uninterested to watch the Glastonbury stuff. So I'm sitting on iPlayer watching series 1 of Race Across the World.
I've already watched series 4 and 5 as they were being broadcast, so now I'm going back to the beginning to catch up on what I missed.
#TOTP #RaceAcrossTheWorld

I love this show - will definitely rewatch because I've just found out that season 4 is available.
#TV

Resident Alien (TV Series 2021– ) ⭐ 8.0 | Comedy, Drama, Mystery
45m | TV-14

Virasoro constraints for topological recursion
Shuai Guo, Qingsheng Zhang
https://arxiv.org/abs/2507.20151 https://arxiv.org/pdf/2507.20151

Virasoro constraints for topological recursion
This is the second paper in a series on {\it Virasoro constraints for Cohomological Field Theory}. We derive the ancestor Virasoro constraints for the topological recursion (TR) for an arbitrary spectral curve and establish the descendent Virasoro constraints for spectral curves satisfying certain conditions. For higher-genus curves, we further establish the corresponding ancestor and descendent Virasoro constraints for the associated non-perturbative generating series. We present several examp…

I'M BEGGING YOU, PARAMOUNT... PLEASE PLEASE PLEASE DON'T SCREW THIS UP.
(I can't take another Section 31 or Halo the Series)
▶️ First Look Teaser | Star Trek: Starfleet Academy
https://youtube.com/watch?v=JrGvZoJNoOs&si=klEHyHGLz0swjXND

TiVy: Time Series Visual Summary for Scalable Visualization
Gromit Yeuk-Yin Chan, Luis Gustavo Nonato, Themis Palpanas, Cl\'audio T. Silva, Juliana Freire
https://arxiv.org/abs/2507.18972

TiVy: Time Series Visual Summary for Scalable Visualization
Visualizing multiple time series presents fundamental tradeoffs between scalability and visual clarity. Time series capture the behavior of many large-scale real-world processes, from stock market trends to urban activities. Users often gain insights by visualizing them as line charts, juxtaposing or superposing multiple time series to compare them and identify trends and patterns. However, existing representations struggle with scalability: when covering long time spans, leading to visual clut…

New paper alert:
Finkel & Lamm, Cultural evolution beyond the individual: what human collective knowledge adds to high fidelity copying.
This is the third in the Distributed Adaptation series.
Many thanks to the diligent reviewers! #philbio #cultevo
https://link.springer.com/article/10.1007/s10539-025-09982-4

We (@…) are preparing to again publish Weekend Reads and The Internet Last Week series of posts.
We may be making some changes to our Mastodon account and blog, but otherwise it should largely resemble what we were doing before.
I know many appreciated seeing them and we missed doing them. They take us a fair bit of time and effort to compile, whic…

Yeah, here are my favorite movies and shows below, separated into series and movies.
Movies
Lady Oscar: https://www.imdb.com/title/tt0077827
Joker (2019):

ReLATE : Unified Framework for Adversarial Attack Detection, Classification, and Resilient Model Selection in Time-Series Classification
Cagla Ipek Kocal, Onat Gungor, Tajana Rosing, Baris Aksanli
https://arxiv.org/abs/2508.19456

ReLATE+: Unified Framework for Adversarial Attack Detection, Classification, and Resilient Model Selection in Time-Series Classification
Minimizing computational overhead in time-series classification, particularly in deep learning models, presents a significant challenge due to the high complexity of model architectures and the large volume of sequential data that must be processed in real time. This challenge is further compounded by adversarial attacks, emphasizing the need for resilient methods that ensure robust performance and efficient model selection. To address this challenge, we propose ReLATE+, a comprehensive framewo…

Integrating Time Series into LLMs via Multi-layer Steerable Embedding Fusion for Enhanced Forecasting
Zhuomin Chen, Dan Li, Jiahui Zhou, Shunyu Wu, Haozheng Ye, Jian Lou, See-Kiong Ng
https://arxiv.org/abs/2508.16059

Integrating Time Series into LLMs via Multi-layer Steerable Embedding Fusion for Enhanced Forecasting
Time series (TS) data are ubiquitous across various application areas, rendering time series forecasting (TSF) a fundamental task. With the astounding advances in large language models (LLMs), a variety of methods have been developed to adapt LLMs for time series forecasting. Despite unlocking the potential of LLMs in comprehending TS data, existing methods are inherently constrained by their shallow integration of TS information, wherein LLMs typically access TS representations at shallow laye…

This morning's #NLC show over Bochum, Germany: extended but not that bright, with only a few interesting details, selected here: See https://www.facebook.com/dan.fischer.393/posts/pfbid025vdCUuoc32qTjXDjTB6zXs9p3EXHSW6HkV4dAxsLirBMLTg2vNKQTykrU5Y5Hbzdl for the full series and https://www.facebook.com/groups/leuchtendenachtwolken/posts/3971122466444367/ and https://www.facebook.com/groups/nlcaroundtheworld/posts/1703406993628232/ for other selections.

Salient, which uses AI to automate the post-loan origination process for lenders, raised a $60M Series A led by a16z, a source says at a $350M valuation (Lucinda Shen/Axios)
https://www.axios.com/pro/fintech-deals/2025/07/28/loan-servicing-ai-salient-6…

Exclusive: Loan servicing startup Salient raises $60M Series A
The process is still mostly manual but banks are investing tech in the area.

Series C, Episode 04 - Dawn of the Gods
CALLY: On Auron, the name of the Thaarn is a symbol of darkness and evil. [Caliph enters cell with Dayna]
CALIPH: So. You're Cally.
CALLY: What of it?
https://blake.torpidity.net/m/304/269 B7B5

A BBP-type formula for the remainder of the Madhava-Gregory-Leibniz series
Benoit Cloitre
https://arxiv.org/abs/2507.20428 https://arxiv.org/pdf/2507.20428…

A BBP-type formula for the remainder of the Madhava-Gregory-Leibniz series
We derive a BBP-type formula for the remainder of the Madhava-Gregory-Leibniz series for $π$. The result is a closed form in base-$16$ with Pochhammer denominators. The analogous formula for the alternating series for $\log 2$ is also presented.

Over the Stability Space of a Multivariate Time Series
Roberto V\'asquez-Mart\'inez, Graciela Gonz\'alez-Far\'ias, Jos\'e Ulises M\'arquez Urbina, Francisco Corona
https://arxiv.org/abs/2506.22407

Over the Stability Space of a Multivariate Time Series
This paper jointly addresses the challenges of non-stationarity and high dimensionality in analysing multivariate time series. Building on the classical concept of cointegration, we introduce a more flexible notion, called stability space, aimed at capturing stationary components in settings where traditional assumptions may not hold. We examine the parametric Johansen procedure alongside two non-parametric alternatives based on dimensionality reduction techniques: Partial Least Squares and Pri…

I am so envious of @…'s short video series. Every video a banger, videos building one each other creating such an interesting and enlightening ongoing argument about design and tech that is timely but also timeless. Follow him and his videos.

Classical fractional time series from quantum XXZ spin chains
Zolt\'an Udvarnoki, G\'abor F\'ath, Mikl\'os Werner, \"Ors Legeza
https://arxiv.org/abs/2508.20974

Classical fractional time series from quantum XXZ spin chains
Entangled quantum mechanical states in one dimension can be used to represent and simulate classical stochastic processes with nontrivial statistical properties. Long-range quantum correlations translate into fractional processes with their asymptotic Hurst exponents characterizing roughness and persistence. We explore this analogy in the case of the spin-1/2 XXZ chain and investigate properties of four different classical two-state processes that this quantum system can generate. These process…

M0, which develops stablecoin infrastructure to boost interoperability and liquidity, raised a $40M Series B led by Polychain and Ribbit Capital (Ben Weiss/Fortune)
https://fortune.com/crypto/2025/08/28/m0-series-b-40-million-polychain-ribbi…

Exclusive: Crypto startup M0 raises $40 million to build out stablecoin network
Polychain and Ribbit Capital led the round, with participation from existing investors like Pantera and Bain Capital Crypto.

celegans_2019: Complete C. elegans neurons (2019)
Networks among neurons of both the adult male and adult hermaphrodite worms C. elegans, constructed from electron microscopy series, to include directed edges (chemical) and undirected (gap junction), and spanning including nodes for muscle and non-muscle end organs.
This network has 469 nodes and 1450 edges.
Tags: Biological, Connectome, Weighted

Series A, Episode 05 - The Web
AVON: Yes.
BLAKE: [V.O.] I need you on the flight deck.
AVON: I'm busy
BLAKE: [V.O.] Now, Avon.
[Flight deck of the Liberator.]
BLAKE: Zen, how are the repairs going?
https://blake.torpidity.net/m/105/20 B7B3

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Marked multi-colorings and marked chromatic polynomials of hypergraphs and subspace arrangements
Chaithra P, Shushma Rani, R. Venkatesh
https://arxiv.org/abs/2507.20847 https://…

Marked multi-colorings and marked chromatic polynomials of hypergraphs and subspace arrangements
We introduce the concepts of marked multi-colorings, marked chromatic polynomials, and marked (multivariate) independence series for hypergraphs. We show that the coefficients of the q-th power of the marked independence series of a hypergraph coincide with its marked chromatic polynomials in q, thereby generalizing a corresponding result for graphs established in Chaithra et al. 2025 (arXiv:2503.11230). These notions are then naturally extended to subspace arrangements. In particular, we prove…

I just found out that #Lenovo changed their #ThinkPad line this year: most probably, there won't be an X13 Gen 6 2-in-1 with multi-touch.
Instead, there's a very light #X13 (w/o 2-in-1 or touch) and a new…

Predicting Thermodynamics of Liquid Water from Time Series Analysis
Ma{\l}gorzata J. Zimo\'n, Fausto Martelli
https://arxiv.org/abs/2506.21821 https://…

Predicting Thermodynamics of Liquid Water from Time Series Analysis
Thermodynamics, introduced over two centuries ago, remains foundational to our understanding of physical, chemical, biological, and engineering systems. Its principles are traditionally grounded in the statistical mechanics framework, which explains macroscopic behavior from microscopic states. In this work, we propose an alternative approach that interprets thermodynamic behavior through the lenses of time series analysis, an approach commonly used in other fields, including finance, climate, …

Blue Water Autonomy, which is building autonomous, unmanned ships for the US Navy, raised a $50M Series A led by GV, bringing its total funding to $64M (Allie Garfinkle/Fortune)
https://fortune.com/2025/08/26/exclusive-b…

Exclusive: Blue Water Autonomy raises GV-led $50 million Series A to build unmanned ships
Blue Water Autonomy has raised a $50 million Series A, led by GV, Fortune has exclusively learned.

Series B, Episode 01 - Redemption
AVON: Don't worry. At the right time, I will remind you of it.
[Flight deck]
VILA: [Accepts cup from Jenna and swallows pill] Thanks.
JENNA: [To Blake who has just entered flight deck with Avon] You all right?
https://blake.torpidity.net/m/201/242

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Truncated Hypergeometric Functions and Discretized Integrals
Shuji Yamamoto
https://arxiv.org/abs/2507.19793 https://arxiv.org/pdf/2507.19793

Truncated Hypergeometric Functions and Discretized Integrals
We introduce a kind of finite truncation of the hypergeometric series and provide its discretized integral representation. This is motivated by recent results of Maesaka-Seki-Watanabe and Hirose-Matsusaka-Seki on the identity between truncated series and discretized integrals which comes from the mutliple zeta values and multiple polylogarithms. We also prove the formula of Ohno-Zagier type which relates the truncated multiple polylogarithms and the truncated hypergeometric series.

Series B, Episode 10 - Voice from the Past
JENNA: Complaining of some sort of noise.
AVON: A sort of tone, he said.
CALLY: Oscillating. It was there again just now.
AVON: As a part of his nightmare?
CALLY: Yes, I think so.
https://blake.torpidity.net/m/210/85

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Rain, a stablecoin-backed Visa card issuer, raised a $58M Series B led by Sapphire Ventures, after raising a $24.5M Series A led by Norwest in March (Yueqi Yang/The Information)
https://www.theinformation.com/briefings/stablecoin-…

Stablecoin Card Startup Rain Raises $58 Million Led By Sapphire Ventures
Rain, a stablecoin-backed card issuer that works with Visa, said it raised $58 million in Series B round led by Sapphire Ventures, just months after its last fundraising round, demonstrating once again investor enthusiasm for crypto startups flowing from congressional passage of stablecoin legislation in July. With the deal, Rain’s valuation increased nearly six times from its $24.5 million

PAX-TS: Model-agnostic multi-granular explanations for time series forecasting via localized perturbations
Tim Kreuzer, Jelena Zdravkovic, Panagiotis Papapetrou
https://arxiv.org/abs/2508.18982

PAX-TS: Model-agnostic multi-granular explanations for time series forecasting via localized perturbations
Time series forecasting has seen considerable improvement during the last years, with transformer models and large language models driving advancements of the state of the art. Modern forecasting models are generally opaque and do not provide explanations for their forecasts, while well-known post-hoc explainability methods like LIME are not suitable for the forecasting context. We propose PAX-TS, a model-agnostic post-hoc algorithm to explain time series forecasting models and their forecasts.…

Series B, Episode 10 - Voice from the Past
JENNA: Complaining of some sort of noise.
AVON: A sort of tone, he said.
CALLY: Oscillating. It was there again just now.
AVON: As a part of his nightmare?
CALLY: Yes, I think so.
https://blake.torpidity.net/m/210/85

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London-based Attio, which offers a CRM service where AI agents and humans work together, raised a $52M Series B led by GV, bringing its total funding to $116M (Lucy Adams/Tech.eu)
https://tech.eu/2025/08/26/attio-raises-52m-series-b-to-scale-crm-platform/…

Attio raises $52M Series B to scale CRM platform
London-based CRM startup Attio has raised $52 million in Series B funding to expand its CRM platform. The round was led by GV (Google Ventures), with participation from existing investors Redpoint Ventures, 01A, Point Nine, and Balderton Capital, bringing Attio’s total funding to $116 million.With the new funding, Attio plans to scale its engineering team, accelerate product development, and double down on go-to-market outreach. Investment will focus particularly on features that enhance agen…

Series D, Episode 01 - Rescue
AVON: [Steps in front of the others] Who was the first, Dorian?
DORIAN: [Troubled] My partner. We entered this place together. Like you, he could never leave it.
https://blake.torpidity.net/m/401/511 B7B2

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Identical Vanishing of Coefficients in the Series Expansion of Eta Quotients, modulo 4, 9 and 25
Tim Huber, James McLaughlin, Dongxi Ye
https://arxiv.org/abs/2507.20298 https://…

Identical Vanishing of Coefficients in the Series Expansion of Eta Quotients, modulo 4, 9 and 25
Let $A(q)=\sum_{n=0}^{\infty}a_n q^n$ and $B(q)=\sum_{n=0}^{\infty}b_n q^n$ be two eta quotients. Previously, we considered the problem of when \[ a_n=0 <=> b_n=0. \] Here we consider the ``mod $m$'' version of this problem, i.e. eta quotients $A(q)$ and $B(q)$ and integers $m>1$ such that \[ a_n \equiv 0 \pmod m <=> b_n \equiv 0 \pmod m? \] We found results for $m=p^2$, $p=2, 3$ and $5$. For $m=4,9$, we found results which apply to infinite families of eta quotients. For example: Let $A(q)$ ha…

Series C, Episode 02 - Powerplay
TARRANT: It was an even bet.
AVON: Quite.
TARRANT: I still don't know who the girl is, though.
AVON: Her name is Dayna, she's not one of us. Where is she, by the way?
TARRANT: Do you care?
https://blake.torpidity.net/m/302/352 …

Paraform, which operates a hiring marketplace with AI-powered candidate relationship management and other tools, raised a $20M Series A led by Felicis (FinSMEs)
https://www.finsmes.com/2025/06/paraform-raises-20m-in-series-a-funding.html

Paraform Raises $20M in Series A Funding
Paraform, a San Francisco, CA-based marketplace built for elite recruiters, raised $20M in Series A funding

A map between arborifications of multiple zeta values
Ku-Yu Fan
https://arxiv.org/abs/2508.20387 https://arxiv.org/pdf/2508.20387

A map between arborifications of multiple zeta values
Arborified multiple zeta values are a generalization of multiple zeta values associated with rooted trees. There are two types of decorated rooted trees, corresponding respectively to the series and the integral expressions. Manchon introduces the contracting arborification (resp. the simple arborification), which is maps from the BCK Hopf algebras of the decorated rooted trees corresponding to the series expression (resp. the integral expression) to the non-commutative polynomial algebras of t…

Ramp raised a $500M Series E-2 led by Iconiq Growth at a $22.5B valuation, says it has 40,000 businesses as clients, with $700M in annualized revenue in March (Belle Lin/Wall Street Journal)
https://www.wsj.com/articles/ai-finance-app-ram…

Snorkel AI, which pivoted from data labeling to building AI evaluation tools, raised a $100M Series D led by Addition at a $1.3B valuation, up from $1B in 2021 (Rashi Shrivastava/Forbes)
https://www.forbes.com/sites/rashishrivast…

Snorkel AI Raises $100 Million To Build Better Evaluators For AI Models
As it faces off against larger players, the data labelling startup is doubling down on using human experts to evaluate AI systems.

Lumana, which integrates vision-language models and agentic AI into its video surveillance system, raised a $40M Series A led by Wing Venture Capital (Mike Wheatley/SiliconANGLE)
https://siliconangle.com/2025/07/29/lumana-gets-40m-build-intel…

Lumana gets $40M to build more intelligent video surveillance systems - SiliconANGLE
Lumana gets $40M to build more intelligent video surveillance systems - SiliconANGLE

Seattle-based Dropzone AI, which offers AI agents that act as Security Operations Center analysts, raised a $37M Series B led by Theory Ventures (Taylor Soper/GeekWire)
https://www.geekwire.com/2025/seattle-startup-dropzo…

Series C, Episode 05 - The Harvest of Kairos
JARVIK: Woman, you're beautiful. [grabs and kisses her]
SERVALAN: Guards! Take this primitive to the punishment cells! Move!
https://blake.torpidity.net/m/305/93 B7B5

Israel-based Teramount, which develops fiber-to-chip interconnect tools for AI infrastructure chips, raised a $50M Series A led by Koch Disruptive Technologies (Meir Orbach/CTech)
https://www.calcalistech.com/ctechnews/article/h10z44udxg

Teramount raises $50M to supercharge AI chips with light
Israeli startup’s optical tech promises 100x data speeds and 70% power savings. 

Niural, whose AI agents help companies automate payroll, benefits, vendor payments, and compliance, raised a $31M Series A led by Marathon Management Partners (Ryan Lawler/Axios)
https://www.axios.com/pro/fintech-deals/2025/06/25/niural-31-milli…

Exclusive: Niural lands $31M to streamline global payroll
Its AI simplifies cross-border pay, benefits and compliance.

Series C, Episode 11 - Moloch
CHESIL: Done to who?
DORAN: My pal, that's who. What have they done to my pal?
CHESIL: Your pal? I don't know who you mean.
https://blake.torpidity.net/m/311/496 B7B2

San Diego-based Clearspeed, which offers AI-driven voice-based risk assessment tech for 60 languages, raised a $60M Series D, taking its total funding to $110M (Duncan Riley/SiliconANGLE)
https://siliconangle.com/2025/06/26/cl

Clearspeed raises $60M to expand voice-based risk assessment platform - SiliconANGLE
Clearspeed raises $60M to expand voice-based risk assessment platform - SiliconANGLE

Series C, Episode 07 - Children of Auron
AVON: You are forgetting that the Aurons rejected her. They sent her into exile.
TARRANT: You were exiled from Earth.
AVON: I go back as an executioner.
https://blake.torpidity.net/m/307/194 B7B3

BlinkOps, which provides AI agents for cybersecurity tasks like managing identity access and patching bugs, raised a $50M Series B led by OG Venture Partners (Meir Orbach/CTech)
https://www.calcalistech.com/ctechnews/article/hjwr1jhvge

BlinkOps secures $50M for its micro agent cyber platform
Led by veterans behind Secdo’s $100M Palo Alto exit, the company is taking a decentralized approach to cyber defense.

Series C, Episode 12 - Death-Watch
VILA: They're smiling, Orac.
ORAC: I fail to see the relevance of that observation.
VILA: Shouldn't they be tired and getting on each other's nerves?
https://blake.torpidity.net/m/312/46 B7B3

Spinwheel, which helps fintech companies and banks authenticate users, automate data retrieval, and facilitate payments, raised a $30M Series A led by F-Prime (Ryan Lawler/Axios)
https://www.axios.com/pro/fintech-deals/2025/06/23/spinwheel-3…

Exclusive: Spinwheel raises $30M to streamline debt management
Debt management remains fragmented and difficult to connect

Athens-based defense tech startup Delian Alliance Industries, which makes its own hardware, software, and sensor fusion systems, raised a $14M Series A (Financial Times)
https://www.ft.com/content/9edc099b-509c-4640-8eb8-d28a80e7c882

Series A, Episode 02 - Space Fall
BLAKE: Spread out and find the armoury. Jenna?
JENNA: What?
BLAKE: Let's find the computer room.
[Switch to Raiker and Artix]
RAIKER: All the doors are open!
https://blake.torpidity.net/m/102/316 B7B2

Sony sues Tencent for copyright and trademark infringement in California federal court, accusing the Chinese tech giant of ripping off its Horizon game series (Blake Brittain/Reuters)
https://www.reuters.com/legal/litigation/so…

Series D, Episode 05 - Animals
JUSTIN: The only human working here, yes. I'm training the animals to work of course, but its slow. Very slow. I've got them right physically, you see, but its the psychology that's difficult. What they want to do is exist; however, I'm trying brain implants and so on but they hate it, it's...it's painful. That's why they rebelled and broke out.
DAYNA: The most developed ones?

Berlin-based Buena, which is building AI-powered software to automate property management tasks, raised $58M, including a Series A led by GV (Cate Lawrence/Tech.eu)
https://tech.eu/2025/07/23/gv-and-20vc

GV and 20VC back Buena’s vision to reinvent property management through AI-powered rollups
Berlin proptech Buena has raised a total of $58 million in funding, including a Series A funding round led by GV, with participation from 20VC, Stride, and Capnamic.  Property management is incredibly fragmented, with over 30,000 firms in Germany employing an average of just five people each… Meanwhile, the industry is notorious for talent shortage and record-low customer NPS scores, with 96.3 per cent of German property managers.  Buena is changing the industry in two ways: first, by bui…

Series D, Episode 02 - Power
TARRANT: Orac, is it possible for a living person to pass through a solid hatch without there being any material disturbance.
ORAC: The process is called teleportation.
DAYNA: Oh, well, nothing like stating the obvious.
https://blake.torpidity.net/m/402/256

Series C, Episode 06 - City at the Edge of the World
VILA: I'm not swallowing that.
AVON: It's perfectly harmless. It dissolves eventually.
VILA: Your hands clean?
https://blake.torpidity.net/m/306/41 B7B6

Series D, Episode 07 - Assassin
TARRANT: Ah yes, and the gentleman with the cough is Vila.
PIRI: Hello Vila.
VILA: Nice to meet you.
NEBROX: And I'm Nebrox.
PIRI: Hello.
SOOLIN: And this, presumably, is Cancer.
https://blake.torpidity.net/m/407/265 B7B4

Series C, Episode 13 - Terminal
AVON: Your security is not very efficient.
SERVALAN: You were supposed to be held in close custody.
AVON: It's not very important. Let's get down to terms. I want Blake's freedom. What do you want?
https://blake.torpidity.net/m/313/347 …

Series A, Episode 04 - Time Squad
CALLY: [Telepaths] How did you get here?
BLAKE: We came from.... [looks quickly to the side].
https://blake.torpidity.net/m/104/344 B7B4

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Series B, Episode 03 - Weapon
[Messroom. Travis enters]
SERVALAN: Are the guards in clear view?
TRAVIS: Three of them, as you ordered, Supreme Commander.
SERVALAN: And the fourth is concealed?
https://blake.torpidity.net/m/203/429 B7B3

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Series C, Episode 02 - Powerplay
AVON: What do we get?
KLEGG: You'll be teleported onto the surface of the nearest planet. You can build your security into the computer program. It won't respond to me until you are safely off the ship.
https://blake.torpidity.net/m/302/498

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Series A, Episode 07 - Mission To Destiny
AVON: The murderer had to cover up, and quickly. Dortmunn was killed. I think the plan was to put his body into the life rocket and launch it into space. That way, it would appear obvious that Dortmunn was guilty.
SONHEIM: So why didn't it happen?
https://blake.torpidity…

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Series B, Episode 06 - Trial
COMPUTER: Holding.
THANIA: Defence requests the names of the alleged victims and the cause of death in each case be specified.
SAMOR: All of them?
THANIA: If it pleases the arbiter.
https://blake.torpidity.net/m/206/58 B7B5

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Series C, Episode 07 - Children of Auron
C.A. TWO: Next, the young adults. Thank you, module six.
C.A. ONE: Any response to the distress calls?
C.A. TWO: Not a whisper. Appeals out on all channels, nothing.
VOICE: Medical section reporting.
https://blake.torpidity.net/m/307/119

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Series A, Episode 01 - The Way Back
VARON: He works in the Outer Worlds most of the time. He's in Security.
BLAKE: He's a murderer.
VARON: Then he'll come to trial like everyone else in this cover-up.
BLAKE: And what about me?
https://blake.torpidity.net/m/101/317

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Series C, Episode 07 - Children of Auron
C.A. TWO: Next, the young adults. Thank you, module six.
C.A. ONE: Any response to the distress calls?
C.A. TWO: Not a whisper. Appeals out on all channels, nothing.
VOICE: Medical section reporting.
https://blake.torpidity.net/m/307/119

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Series A, Episode 01 - The Way Back
VARON: He works in the Outer Worlds most of the time. He's in Security.
BLAKE: He's a murderer.
VARON: Then he'll come to trial like everyone else in this cover-up.
BLAKE: And what about me?
https://blake.torpidity.net/m/101/317

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