Tootfinder

I hope people look at this and realize that licenses will not protect them; they will only ever protect capital in the long run https://aus.social/@KathyReid/112413898118066645

A Minority of C Objects Account for the Majority of Allocation CPU Time
Eugene Darashkevich, Roman Rusyaev, Roman Korostinskiy, Yegor Bugayenko
https://arxiv.org/abs/2403.06695 …

A Minority of C++ Objects Account for the Majority of Allocation CPU Time
In C++, an object can be allocated in static memory, on the stack, or on the heap, where the latter is by the order of magnitude more expensive operation, performance wise, than the first two. However, it is not clear how much overall performance loss may be attributed to the use of on-heap objects in C++ applications. This study aims to fill this gap by analyzing object allocation practices in open-source C++ code, investigating the frequency of stack and heap allocations using real-time dynam…

One of the reasons I haven't published a blog post yet on the nodes, even though they are pretty much done. Is because I didn't finish the design yet. Well, earlier today I finished the design. Reinforced it in some locations, and included options to stack them.
The stacking will have to be designed. But finalizing the design is already a big milestone. Designs will be available (for sale) on Bricklink and/or ReBrickable at some point.

On the stack of 0-dimensional coherent sheaves: motivic aspects
Barbara Fantechi, Andrea T. Ricolfi
https://arxiv.org/abs/2403.07859 https://

On the stack of 0-dimensional coherent sheaves: motivic aspects
Let $X$ be a variety. We study (decompositions of) the motivic class, in the Grothendieck ring of stacks, of the stack $\mathscr{C}oh^n(X)$ of $0$-dimensional coherent sheaves of length $n$ on $X$. To do so, we review the construction of the support map $\mathscr{C}oh^n(X) \to \mathrm{Sym}^n(X)$ to the symmetric product and we prove that, for any closed point $p \in X$, the punctual stack $\mathscr{C}oh^n(X)_p$ parametrising sheaves supported at $p$ only depends on a formal neighbourhood of $p$…

what is the typical design process for multiple token buckets?
e.g. if you have a bunch of go routines that:
listen to new domain registrations ->
check for IP token bucket (or rough /30 bucket?) -> if rate limited, stack in list of things to do in that prefix?? send to disk?
check for ASN token bucket - if cidr range is unknown, send to ASN querying and sleep(?)
ASN querying go routine -> rate limited to a request every 8 hours (100/month), or every 2-ish hours (500/month) - cached once known
when ASN becomes unblocked -> /now/ you can query the domain
(this also applies to queue design in general, when the thing you're queuing for might take a long while to dequeue in breadth first search, or if you have multiple rate limits to respect)
e.g., if I have it run an insert into "asn_lookups_resume_domains" for the ASN job to lookup, then resume/retry the domain jobs
or if it's completely blocking
or if it's just n-workers such that probably some prefixes are unblocked

All became clear once I Derived the answer from the bottom up.
#CellTower 739
➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️ https://www.andrewt.net/puzzles/cell-tower/?p=739

Cell Tower
Find the hidden words in the stack of random letters

IBM QRadar - When The Attacker Controls Your Security Stack (CVE-2022-26377) - watchTowr Labs https://labs.watchtowr.com/ibm-qradar-when-the-attacker-controls-your-security-stack/

Post-draft NFL Power Rankings: 1-32 poll, plus the most improved areas on every team https://www.espn.com/nfl/story/_/id/40108593/nfl-power-rankings-post-draft-poll-2024-most-improved-every-team

NFL Power Rankings 2024: What's most improved on every team? - ESPN
The NFL draft has come and gone, so let's stack the best teams in the league. Which rosters got better with their rookie classes?

I hope people look at this and realize that licenses will not protect them; they will only ever protect capital in the long run https://aus.social/@KathyReid/112413898118066645

stackoverflow: Stack Overflow favorites (2011)
A bipartite network of users and the posts they have favorited, from the online Q&A site Stack Overflow. An edge (i,j) connects a user i to a post j if that user "favorited" that post (a kind of a rating). Edges are timestamped.
This network has 641876 nodes and 1301942 edges.
Tags: Economic, Preferences, Unweighted, Timestamps

Cohomology rings of the moduli of one-dimensional sheaves on the projective plane
Yakov Kononov, Woonam Lim, Miguel Moreira, Weite Pi
https://arxiv.org/abs/2403.06277

Cohomology rings of the moduli of one-dimensional sheaves on the projective plane
We initiate a systematic study on the cohomology rings of the moduli stack $\mathfrak{M}_{d,χ}$ of semistable one-dimensional sheaves on the projective plane. We introduce a set of tautological relations of geometric origin, including Mumford-type relations, and prove that their ideal is generated by certain primitive relations via the Virasoro operators. Using BPS integrality and the computational efficiency of Virasoro operators, we show that our geometric relations completely determine the …

Tearing into a Sparky Sandwich
https://poliverso.org/display/0477a01e-3180d59f-a7af9cabd1821f2a
Tearing into a Sparky Sandwich We’re still in the early days of modern EV infrastructure, so minor issues can lead to a full high voltage pack replacemen…

I haven't used stackoverflow much, just had two answers I'd posted there. I deleted them both, and got the same email others have got.. Probably the most passive-aggressive email I've ever received.
By the way if you delete your account, they anonymise your posts. AFAICT, that's against the creative commons attribution share-alike license of the posts.

The New Stack is now just AI shit drivel. I mean its never been exactly quality writing but now its just AI AI AI and pretty terrible at that.

All became clear once I Derived the answer from the bottom up.
#CellTower 739
➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️ https://www.andrewt.net/puzzles/cell-tower/?p=739

Cell Tower
Find the hidden words in the stack of random letters

Hyper-V is a strategic technology at Microsoft used in Azure, Azure Stack, Windows Server, Windows & even Xbox. Plan for Hyper-V scalability in Windows Server**.**
Windows Server 2025 Hyper-V:
- Max Memory per VM: 240 Terabytes*
- Max Virtual Processors per VM: 2048*
Max Memory per Host:
- 4 Petabytes for hosts that support 5 level paging
- 256 Terabytes for hosts that support 4 level paging

On the set partitions that require maximum sorts through the $aba-$avoiding stack
Yunseo Choi, Katelyn Gan, Andrew Li, Tiffany Zhu
https://arxiv.org/abs/2403.05113

On the set partitions that require maximum sorts through the $aba-$avoiding stack
Recently, Xia introduced a deterministic variation $ϕ_σ$ of Defant and Kravitz's stack-sorting maps for set partitions and showed that any set partition $p$ is sorted by $ϕ^{N(p)}_{aba}$, where $N(p)$ is the number of distinct alphabets in $p$. Xia then asked which set partitions $p$ are not sorted by $ϕ_{aba}^{N(p)-1}$. In this note, we prove that the minimal length of a set partition $p$ that is not sorted by $ϕ_{aba}^{N(p)-1}$ is $2N(p)$. Then we show that there is only one set partitio…

If you post to #StackExchange, you license that content to them under CC-BY-SA. You can't revoke that license, so you can't remove that content.
It shouldn't surprise you that they stop you from trying. Imagine a Wikipedia editor trying to remove their edits.
However, what it does give you is the right to host _all_ of SE elsewhere. To fork it, if SE violates its co…

This https://arxiv.org/abs/2311.08937 has been replaced.
initial toot: https://mastoxiv.page/@a…

Ba6RE2Ti4O17 (RE= Nd, Sm,Gd, Dy-Yb): A family of Rare-earth based layered triangular lattice magnets
Rare-earth-based triangular-lattice magnets provide the fertile ground to explore the exotic quantum magnetic state. Herein, we report a new family of RE-based triangular-lattice magnets Ba6RE2Ti4O17(RE= rare earth ions) crystallized into the hexagonal structure with space group of P63 mmc, where magnetic rare earth ions form an ideal triangular lattice within the ab-plane and stack in an AA -type fashion along the c-axis. The low-temperature magnetic susceptibility results reveal all the seria…

The Stack Overflow / OpenAI news does not alarm me too much. There is *lots* of bad #accessibility information there. I did a talk on it.
Twice:
• https://adrianroselli.com/2017/09/slid

Slides from A11yTOConf
Before you wade into the slides, please note that all the code / accessibility advice in these slides is wrong. They are just examples. Do not copy them. If the embed does not work, view it at SlideShare. The t-shirt I was wearing may have been more popular than my…

The Stack Overflow rugpull is another data point in my head which discourages me from contributing *any* content to a hoard owned by a corporation.
I’m hoping that ActivityPub will one day enable SO-style knowledge bases in which the individual nuggets of content are owned by independent servers and cannot be purchased by anyone.
#stackOverflow

Stack Overflow bans users en masse for rebelling against OpenAI partnership — users banned for deleting answers to prevent them being used to train ChatGPT
Stack Overflow is overflowing with salt.

Allow me to re-stack two of the AP’s graphs. #Uvalde
“… an investigator hired by Uvalde officials found that the city’s officers did not deserve punishment, and in some cases, praised their actions …”
“… prompting shouts of “cowards” from the audience and causing several family members of the victims to angrily walk out of the meeting.”

Uvalde parents lash out after new report clears city police of missteps during Texas school attack
An investigation Uvalde city leaders ordered into the Robb Elementary School shooting has put no blame on local police officers and defended their actions, but still acknowledged a series of failures during the response. The 2022 classroom attack left 19 children and two teachers dead. The probe by Austin-based investigator and former detective Jesse Prado for the Uvalde City Council is just one of several into the massacre. State lawmakers found in 2022 that nearly 400 local, state and federal…

Stack Overflow signs a deal with OpenAI to supply data to its models; new integrations between Stack Overflow and OpenAI will be available by the end of June (Kyle Wiggers/TechCrunch)
https://techcrunch.com/2024/05/06/stack-ove…

Stack Overflow signs deal with OpenAI to supply data to its models | TechCrunch
Stack Overflow, the developer Q&A site, has inked a licensing agreement with OpenAI to supply data to its models.

"Stack Overflow, a legendary internet forum for programmers and developers, is coming under heavy fire from its users after it announced it was partnering with OpenAI to scrub the site's forum posts to train ChatGPT...
"AI may consume a quarter of the U.S.'s power grid by just 2030, according to reports from industry professionals and agencies."

Stack Overflow bans users en masse for rebelling against OpenAI partnership — users banned for deleting answers to prevent them being used to train ChatGPT
Stack Overflow is overflowing with salt.

AFC Roster Reset: Conference hierarchy heading into 2024 NFL Draft https://www.nfl.com/news/afc-roster-reset-conference-hierarchy-heading-into-2024-nfl-draft

AFC Roster Reset: Conference hierarchy heading into 2024 NFL Draft
The AFC is the dominant conference right now, in results, star power and storylines. So, how do all these loaded rosters stack up against each other? As we head toward the 2024 NFL Draft, Judy Battista assesses the 16-team hierarchy.

This https://arxiv.org/abs/2403.14770 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csAR_…

Beehive: A Flexible Network Stack for Direct-Attached Accelerators
Accelerators have become increasingly popular in datacenters due to their cost, performance, and energy benefits. Direct-attached accelerators, where the network stack is implemented in hardware and network traffic bypasses the main CPU, can further enhance these benefits. However, modern datacenter software network stacks are complex, with interleaved protocol layers, network management functions, as well as virtualization support. They also need to flexibly interpose new layers to support new…

Breakfast stack, Sea Vista cafe, Gerringong.
#food

As an EU citizen, I'm using my right to deletion to get #StackOverflow to remove my data for me.
Here is the link to the form: https://policies.stackoverflow.co/data-request…

“Stack Overflow bans users en masse for rebelling against OpenAI partnership — users banned for deleting answers to prevent them being used to train ChatGPT”
Yet another amazing the-not-exploitative-alternative business opportunity.

Stack Overflow bans users en masse for rebelling against OpenAI partnership — users banned for deleting answers to prevent them being used to train ChatGPT
Stack Overflow is overflowing with salt.

The guide to #Git I never had
https://medium.com/@jake.page91/the-guide-to-git-i-never-had-a89048d4703a

Monitoring AGNs with H$\beta$ Asymmetry. IV. First Reverberation Mapping Results of 14 AGNs
T. E. Zastrocky, Michael S. Brotherton, Pu Du, Jacob N. McLane, Kianna A. Olson, D. A. Dale, H. A. Kobulnicky, Jaya Maithil, My L. Nguyen, William T. Chick, David H. Kasper, Derek Hand, C. Adelman, Z. Carter, G. Murphree, M. Oeur, T. Roth, S. Schonsberg, M. J. Caradonna, J. Favro, A. J. Ferguson, I. M. Gonzalez, L. M. Hadding, H. D. Hagler, C. J. Rogers, T. R. Stack, Franklin Chapman, Dong-Wei B…

Monitoring AGNs with H$β$ Asymmetry. IV. First Reverberation Mapping Results of 14 AGNs
We report first-time reverberation mapping results for 14 AGNs from the ongoing Monitoring AGNs with H$β$ Asymmetry campaign (MAHA). These results utilize optical spectra obtained with the Long Slit Spectrograph on the Wyoming Infrared 2.3m Telescope between 2017 November-2023 May. MAHA combines long-duration monitoring with high cadence. We report results from multiple observing seasons for 9 of the 14 objects. These results include H$β$ time lags, supermassive black hole masses, and velocit…

The main effect of Stack Overflow selling data to ChatGPT is that from now on, the chatbot will reply to any and every programming question with a passive-aggressive RTFM.

@… please: what was the tipping point, for you?
I do still use the Stack Exchange network, occasionally, as a point of reference.
I don't refrain from asking questions, or offering answers, but (for no particular reason) my presence has naturally dwindled to near zero over the past two decades or whatever.

Just improved the display of error messages in Kitten¹.
They should be far more robust now.
Run `kitten update` to get the latest.
:kitten:💕
¹ #Kitten

app
A web development kit that’s small, purrs, and loves you.

Ever wanted to do something with the #stackoverflow data dumps but found their multi gigabyte XML files too hard to deal with?
SEqlite's for you! It's the info from the dumps you probably care about, preprocessed into SQLite databases with indexes.
The 2024-04-01 version is now up at

SEqlite

Go die in a fire, Stack Overflow

This https://arxiv.org/abs/2311.08937 has been replaced.
initial toot: https://mastoxiv.page/@a…

Ba6RE2Ti4O17 (RE= Nd, Sm,Gd, Dy-Yb): A family of Rare-earth based layered triangular lattice magnets
Rare-earth-based triangular-lattice magnets provide the fertile ground to explore the exotic quantum magnetic state. Herein, we report a new family of RE-based triangular-lattice magnets Ba6RE2Ti4O17(RE= rare earth ions) crystallized into the hexagonal structure with space group of P63 mmc, where magnetic rare earth ions form an ideal triangular lattice within the ab-plane and stack in an AA -type fashion along the c-axis. The low-temperature magnetic susceptibility results reveal all the seria…

This https://arxiv.org/abs/2403.18374 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csDC_…

Optimizing Communication for Latency Sensitive HPC Applications on up to 48 FPGAs Using ACCL
Most FPGA boards in the HPC domain are well-suited for parallel scaling because of the direct integration of versatile and high-throughput network ports. However, the utilization of their network capabilities is often challenging and error-prone because the whole network stack and communication patterns have to be implemented and managed on the FPGAs. Also, this approach conceptually involves a trade-off between the performance potential of improved communication and the impact of resource cons…

The Intro to CS exam my daughter is preparing has questions about the space complexity of recursive functions in C. I have no idea if they are supposed to include the stack and whether tail recursion was ever mentioned.

Representability of Elliptic Moduli Problems in Derived $C^{\infty}$-Geometry
Pelle Steffens
https://arxiv.org/abs/2404.07931 https://

Representability of Elliptic Moduli Problems in Derived $C^{\infty}$-Geometry
We study moduli spaces of solutions of nonlinear Partial Differential Equations on manifolds in the framework of derived $C^{\infty}$-geometry. For an arbitrary smooth stack $S$, we define $S$-families of nonlinear PDEs acting between $S$-families of submersions over an $S$-family of manifolds and show that in case the family of PDEs is elliptic and the base family of manifolds is proper over $S$, then the moduli stack of solutions is relatively representable by quasi-smooth derived $C^{\infty}…

#CellTower 705
➡️➡️⬇️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️
⬆️⬛️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️ https://www.andrewt.net/puzzles/cell-tower/?p=705

Cell Tower
Find the hidden words in the stack of random letters

Automatic Bi-modal Question Title Generation for Stack Overflow with Prompt Learning
Shaoyu Yang, Xiang Chen, Ke Liu, Guang Yang, Chi Yu
https://arxiv.org/abs/2403.03677

Automatic Bi-modal Question Title Generation for Stack Overflow with Prompt Learning
When drafting question posts for Stack Overflow, developers may not accurately summarize the core problems in the question titles, which can cause these questions to not get timely help. Therefore, improving the quality of question titles has attracted the wide attention of researchers. An initial study aimed to automatically generate the titles by only analyzing the code snippets in the question body. However, this study ignored the helpful information in their corresponding problem descriptio…

An elaborate new proof of Cayley's formula
Esther Banaian, Anh Trong Nam Hoang, Elizabeth Kelley, Weston Miller, Jason Stack, Carolyn Stephen, Nathan Williams
https://arxiv.org/abs/2402.07798

An elaborate new proof of Cayley's formula
We construct a bijection between certain Deodhar components of a braid variety constructed from an affine Kac-Moody group of type $A_{n-1}$ and vertex-labeled trees on $n$ vertices. By an argument of Galashin, Lam, and Williams using Opdam's trace formula in the affine Hecke algebra and an identity due to Haglund, we obtain an elaborate new proof for the enumeration of the number of vertex-labeled trees on $n$ vertices.

Check out the monster amp stack at my band's gig over the weekend... Pumpin' out the jams.

Temperature Prediction for Stored Grain: A Multi-model Fusion Strategy Based on Machine Learning
Donghao Chen, Binkun Liu
https://arxiv.org/abs/2404.07175 …

Temperature Prediction for Stored Grain: A Multi-model Fusion Strategy Based on Machine Learning
Temperature fluctuations significantly affect microorganism growth and pest activity in grain stacks. Thus, precise monitoring and forecasting of grain stack temperature are essential for maintaining the quality and safety of grain storage. This paper proposes a multi-model fusion approach to predict grain temperature using historical temperature data of stored grains and meteorological data from the region. Based on the proposed approaches, four distinct machine learning models, namely Adaboos…

The CDC recommends developers to write all new code in C and C in a strong rebuke to field experts.
It also dropped the requirement to use -fno-stack-protector on code exposed to the network for government and defense contractors to maximize America’s computational power.

Representability of Elliptic Moduli Problems in Derived $C^{\infty}$-Geometry
Pelle Steffens
https://arxiv.org/abs/2404.07931 https://

Representability of Elliptic Moduli Problems in Derived $C^{\infty}$-Geometry
We study moduli spaces of solutions of nonlinear Partial Differential Equations on manifolds in the framework of derived $C^{\infty}$-geometry. For an arbitrary smooth stack $S$, we define $S$-families of nonlinear PDEs acting between $S$-families of submersions over an $S$-family of manifolds and show that in case the family of PDEs is elliptic and the base family of manifolds is proper over $S$, then the moduli stack of solutions is relatively representable by quasi-smooth derived $C^{\infty}…

Tricky one
#CellTower 704
➡️⬇️⬛️⬛️⬛️➡️➡️➡️⬇️⬛️⬛️⬛️⬛️⬛️
⬆️➡️➡️➡️➡️⬆️⬛️⬛️➡️➡️➡️➡️➡️➡️ https://www.andrewt.net/puzzles/cell-tower/?p=704

Cell Tower
Find the hidden words in the stack of random letters

Cathedral of the Sea #ArchitectureyCrap cc @…

The automation of smart EV charging enables precise response to a variety of signals. Dynamic electricity prices, hourly prices reflecting the day-ahead wholesale market, are an important input for EV drivers in more and more European countries. But hourly prices need not be the only input:
#EV #SmartCharging

i feel like i am never going to get through this stack of books by my bed #alas

PUNK = DEAD, PRINT = DEAD, YOU = NEXT Via https://www.stackmagazines.com/update/the-real-death-of-print/

The real death of print - STACK magazines

A post from the archive 📫:
View the origin of a repeating call stack
#diagnostics

Securing the Open RAN Infrastructure: Exploring Vulnerabilities in Kubernetes Deployments
Felix Klement, Alessandro Brighente, Michele Polese, Mauro Conti, Stefan Katzenbeisser
https://arxiv.org/abs/2405.01888

Securing the Open RAN Infrastructure: Exploring Vulnerabilities in Kubernetes Deployments
In this paper, we investigate the security implications of virtualized and software-based Open Radio Access Network (RAN) systems, specifically focusing on the architecture proposed by the O-RAN ALLIANCE and O-Cloud deployments based on the O-RAN Software Community (OSC) stack and infrastructure. Our key findings are based on a thorough security assessment and static scanning of the OSC Near Real-Time RAN Intelligent Controller (RIC) cluster. We highlight the presence of potential vulnerabiliti…

"build exciting things with boring technology"
Yes!
https://phpc.social/@sarah/112231688445848023

No more user-generated content, I think. Right? No more? POSSE all you can? Help others do the same?
https://www.tomshardware.com/tech-indu…

Stack Overflow bans users en masse for rebelling against OpenAI partnership — users banned for deleting answers to prevent them being used to train ChatGPT
Stack Overflow is overflowing with salt.

The Marine Museum of the Great Lakes is an amazing place to visit when in #Kingston, ON. The recent acquisition of the SS Keewatin just makes it better. The volunteers who maintain this facility's operations definitely deserve this award.
#GreatLakes

Volunteers of the Great Lakes Museum recognized with Historical Society Award
(Kingston, Ontario) Photo via Great Lakes Museum. The Volunteers of the Great Lakes Museum have been recognized by the Kingston Historical Society for their years of

A really detailed superconducting magnet paper; all about the physical build, of a huge one for fusion use; 270km of REBCO tape, and weighing 10 Tonnes; some bits are fascinating, like the flood filling of the tape with solder.
https://ieeexplore.ieee.org/document/10411128

Design, Fabrication, and Assembly of the SPARC Toroidal Field Model Coil
The SPARC Toroidal Field Model Coil (TFMC) is the first large-scale (∼3 m), high-field (∼20 T) superconducting fusion magnet based on Rare Earth Yttrium Barium Copper Oxide (REBCO). Weighing 10,058 kg and utilizing 270 km of REBCO, the TFMC is a non-insulated, stack-in-plate style superconducting magnet. It has three main components: (1) the winding pack; (2) the structural case; and (3) the case extensions, or plena. The winding pack is composed of sixteen single pancakes with two terminat…

Who's going to be sifting Stack Overflow for relevance and accuracy before OpenAI incorporates it?
Or is this for an entirely new offering "All The Wrong Answers, But Not Necessarily In The Right Order"?
#AI #Stupidity

This https://arxiv.org/abs/2310.15915 has been replaced.
link: https://scholar.google.com/scholar?q=a

A Pure Demand Operational Semantics with Applications to Program Analysis
This paper develops a novel minimal-state operational semantics for higher-order functional languages that uses only the call stack and a source program point or a lexical level as the complete state information: there is no environment, no substitution, no continuation, etc. We prove this form of operational semantics equivalent to standard presentations. We then show how this approach can open the door to potential new applications: we define a program analysis as a direct finitization of t…

Non-semisimple Crane-Yetter theory varying over the character stack
Patrick Kinnear
https://arxiv.org/abs/2404.19667 https://arxiv.org/pdf/2404.19667
arXiv:2404.19667v1 Announce Type: new
Abstract: We construct a relative version of the Crane-Yetter topological quantum field theory in four dimensions, from non-semisimple data. Our theory is defined relative to the classical $G$-gauge theory in five dimensions -- this latter theory assigns to each manifold $M$ the appropriate linearization of the moduli stack of $G$-local systems, called the character stack. Our main result is to establish a relative invertibility property for our construction. This invertibility echoes -- recovers and greatly generalizes -- the key invertibility property of the original Crane-Yetter theory which allowed it to capture the framing anomaly of the celebrated Witten-Reshetikhin-Turaev theory. In particular our invertibilty statement at the level of surfaces implies a categorical, stacky version of the unicity theorem for skein algebras; at the level of 3-manifolds it equips the character stack with a canonical line bundle. Regarded as a topological symmetry defect of classical gauge theory, our work establishes invertibility of this defect by a gauging procedure.

This https://arxiv.org/abs/2311.03480 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

RFSoC Gen3-Based Software-Defined Radio Characterization for the Readout System of Low-Temperature Bolometers
This work reports the performance evaluation of an SDR readout system based on the latest generation (Gen3) of the AMD's Radio Frequency System-on-Chip (RFSoC) processing platform, which integrates a full-stack processing system and a powerful FPGA with up to 32 high-speed and high-resolution 14-bit Digital-to-Analog Converters (DACs) and Analog-to-Digital Converters (ADCs). The proposed readout system uses a previously developed multi-band, double-conversion IQ RF-mixing board targeting a mult…

Someone recently complained that #StackOverflow is “misusing” their answers for commercial purposes and now wishes to have all their content deleted under GDPR.
Here's the thing: Everything published there is #CreativeCommons-licensed under CC BY-SA 4.0. If you don't li…

Public Network Terms of Service
Stack Overflow | The World’s Largest Online Community for Developers

One Stack to Rule them All: To Drive Automated Vehicles, and Reach for the 4th level
Sven Ochs, Jens Doll, Daniel Grimm, Tobias Fleck, Marc Heinrich, Stefan Orf, Albert Schotschneider, Helen Gremmelmaier, Rupert Polley, Svetlana Pavlitska, Maximilian Zipfl, Helen Schneider, Ferdinand M\"utsch, Daniel Bogdoll, Florian Kuhnt, Philip Sch\"orner, Marc Ren\'e Zofka, J. Marius Z\"ollner

One Stack to Rule them All: To Drive Automated Vehicles, and Reach for the 4th level
Most automated driving functions are designed for a specific task or vehicle. Most often, the underlying architecture is fixed to specific algorithms to increase performance. Therefore, it is not possible to deploy new modules and algorithms easily. In this paper, we present our automated driving stack which combines both scalability and adaptability. Due to the modular design, our stack allows for a fast integration and testing of novel and state-of-the-art research approaches. Furthermore, it…

Go die in a fire, Stack Overflow

I/O Transit Caching for PMem-based Block Device
Qing Xu, Qisheng Jiang, Chundong Wang
https://arxiv.org/abs/2403.06120 https://arxiv.…

I/O Transit Caching for PMem-based Block Device
Byte-addressable non-volatile memory (NVM) sitting on the memory bus is employed to make persistent memory (PMem) in general-purpose computing systems and embedded systems for data storage. Researchers develop software drivers such as the block translation table (BTT) to build block devices on PMem, so programmers can keep using mature and reliable conventional storage stack while expecting high performance by exploiting fast PMem. However, our quantitative study shows that BTT underutilizes PM…

stackoverflow: Stack Overflow favorites (2011)
A bipartite network of users and the posts they have favorited, from the online Q&A site Stack Overflow. An edge (i,j) connects a user i to a post j if that user "favorited" that post (a kind of a rating). Edges are timestamped.
This network has 641876 nodes and 1301942 edges.
Tags: Economic, Preferences, Unweighted, Timestamps

This is incredibly tone-deaf of StackExchange. They're a community-driven project, and the community has been very clear that they are skeptical of AI and AI-driven business.
However, all SE data is also CC-BY, same as Wikipedia, which means OpenAI is pretty well-justified in just crawling the SE data. I'm not sure what this agreement buys either party.

Stack Overflow signs deal with OpenAI to supply data to its models | TechCrunch
Stack Overflow, the developer Q&A site, has inked a licensing agreement with OpenAI to supply data to its models.

Welp, it's official. All Stack Overflow contributions are simply grist for the AI mill. If you're still contributing there, it's probably time to stop. #stackoverflow
https://stac…

The Fact Selection Problem in LLM-Based Program Repair
Nikhil Parasaram, Huijie Yan, Boyu Yang, Zineb Flahy, Abriele Qudsi, Damian Ziaber, Earl Barr, Sergey Mechtaev
https://arxiv.org/abs/2404.05520

The Fact Selection Problem in LLM-Based Program Repair
Recent research has shown that incorporating bug-related facts, such as stack traces and GitHub issues, into prompts enhances the bug-fixing capabilities of large language models (LLMs). Considering the ever-increasing context window of these models, a critical question arises: what and how many facts should be included in prompts to maximise the chance of correctly fixing bugs? To answer this question, we conducted a large-scale study, employing over 19K prompts featuring various combinations …

What do you mean, ancient computers with no stack? My first BASIC interpreter didn't have a stack, and it felt really modern! Well, back then. So I passed arrays around and an index. Worked "fine" even for recursion.
But then I wanted to port my recursive generate-a-christmas-tree algorithm to my little cousin's BASIC interpreter, as a Christmas present, and it wouldn't let me pass the array to the subroutine either. That's when things got a bit difficult ...<…

The ancient world before computers had stacks or heaps - The Old New Thing
A lot of computing got done even before we had stacks and heaps.

Stack Overflow launches OverflowAPI to give AI companies access to its knowledge base, starting with Google, which will use the data for Gemini for Google Cloud (Frederic Lardinois/TechCrunch)
https://techcrunch.com/2024/02/29/google-bring…

Google brings Stack Overflow's knowledge base to Gemini for Google Cloud | TechCrunch
Developer Q&A site Stack Overflow is launching a new program today that will give AI companies access to its knowledge base through a new API, aptly

This https://arxiv.org/abs/2208.01517 has been replaced.
link: https://scholar.google.com/scholar?q=a

Derived $F$-zips
We define derived versions of $F$-zips and associate a derived $F$-zip to any proper, smooth morphism of schemes in positive characteristic. We analyze the stack of derived $F$-zips and certain substacks. We make a connection to the classical theory and look at problems that arise when trying to generalize the theory to derived $G$-zips and derived $F$-zips associated to lci morphisms. As an application, we look at Enriques-surfaces and analyze the geometry of the moduli stack of Enriques-surfa…

"build exciting things with boring technology"
Yes!
https://phpc.social/@sarah/112231688445848023

A really detailed superconducting magnet paper; all about the physical build, of a huge one for fusion use; 270km of REBCO tape, and weighing 10 Tonnes; some bits are fascinating, like the flood filling of the tape with solder.
https://ieeexplore.ieee.org/document/10411128

Design, Fabrication, and Assembly of the SPARC Toroidal Field Model Coil
The SPARC Toroidal Field Model Coil (TFMC) is the first large-scale (∼3 m), high-field (∼20 T) superconducting fusion magnet based on Rare Earth Yttrium Barium Copper Oxide (REBCO). Weighing 10,058 kg and utilizing 270 km of REBCO, the TFMC is a non-insulated, stack-in-plate style superconducting magnet. It has three main components: (1) the winding pack; (2) the structural case; and (3) the case extensions, or plena. The winding pack is composed of sixteen single pancakes with two terminat…

stackoverflow: Stack Overflow favorites (2011)
A bipartite network of users and the posts they have favorited, from the online Q&A site Stack Overflow. An edge (i,j) connects a user i to a post j if that user "favorited" that post (a kind of a rating). Edges are timestamped.
This network has 641876 nodes and 1301942 edges.
Tags: Economic, Preferences, Unweighted, Timestamps

This https://arxiv.org/abs/2211.04732 has been replaced.
link: https://scholar.google.com/scholar?q=a

Directed Acyclic Outerplanar Graphs Have Constant Stack Number
The stack number of a directed acyclic graph $G$ is the minimum $k$ for which there is a topological ordering of $G$ and a $k$-coloring of the edges such that no two edges of the same color cross, i.e., have alternating endpoints along the topological ordering. We prove that the stack number of directed acyclic outerplanar graphs is bounded by a constant, which gives a positive answer to a conjecture by Heath, Pemmaraju and Trenk [SIAM J. Computing, 1999]. As an immediate consequence, this show…

2024 NFL offseason: My ranking of the top nine quarterbacks available via free agency, draft or trade https://www.nfl.com/news/2024-nfl-offseason-my-ranking-of-the-top-nine-quarterbacks-available-via-free-agenc…

2024 NFL offseason: My ranking of the top nine quarterbacks available via free agency, draft or trade
As is the case every offseason, quarterback movement will have an enormous impact on league hierarchy. With that in mind, Adam Schein provides his ranking of the top nine signal-callers available via free agency, draft or trade. How do the college prospects stack up against the NFL vets?

This https://arxiv.org/abs/2208.01517 has been replaced.
link: https://scholar.google.com/scholar?q=a

Derived $F$-zips
We define derived versions of $F$-zips and associate a derived $F$-zip to any proper, smooth morphism of schemes in positive characteristic. We analyze the stack of derived $F$-zips and certain substacks. We make a connection to the classical theory and look at problems that arise when trying to generalize the theory to derived $G$-zips and derived $F$-zips associated to lci morphisms. As an application, we look at Enriques-surfaces and analyze the geometry of the moduli stack of Enriques-surfa…

This https://arxiv.org/abs/2311.18132 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

The Brauer Group of $\mathscr{Y}_0(2)$
We determine the Brauer group of the Deligne-Mumford stack $\mathscr{Y}_0(2)$, the moduli space of elliptic curves with a marked $2$-torsion subgroup over bases of arithmetic interest. Antieau and Meier determine the Brauer group for $\mathscr{M}_{1,1}$, the moduli stack of elliptic curves by exploiting the fact it is covered by the Legendre family and using the Hochschild-Serre spectral sequence. Over an algebraically closed field, Shin uses the coarse space map to determine the Brauer group o…

Stripe says some of its products will be available to companies that are using other payments providers, and unveils new embedded finance features and AI tools (Ingrid Lunden/TechCrunch)
https://techcrunch.com/2024/04/24/stri

Stripe, doubling down on embedded finance, de-couples payments from the rest of its stack | TechCrunch
Stripe continues to hold the title of being the biggest financial technology business still in private hands, with a current valuation of about $65

The Order of the (123, 132)-Avoiding Stack Sort
Owen Zhang
https://arxiv.org/abs/2405.01854 https://arxiv.org/pdf/2405.01854

The Order of the (123, 132)-Avoiding Stack Sort
Let $s$ be West's deterministic stack-sorting map. A well-known result (West) is that any length $n$ permutation can be sorted with $n-1$ iterations of $s.$ In 2020, Defant introduced the notion of highly-sorted permutations -- permutations in $s^t(S_n)$ for $t \lessapprox n-1.$ In 2023, Choi and Choi extended this notion to generalized stack-sorting maps $s_σ,$ where we relax the condition of becoming sorted to the analogous condition of becoming periodic with respect to $s_σ.$ In this work,…

stackoverflow: Stack Overflow favorites (2011)
A bipartite network of users and the posts they have favorited, from the online Q&A site Stack Overflow. An edge (i,j) connects a user i to a post j if that user "favorited" that post (a kind of a rating). Edges are timestamped.
This network has 641876 nodes and 1301942 edges.
Tags: Economic, Preferences, Unweighted, Timestamps

(_＼ヽ
　 ＼＼ .Λ＿Λ.
　　 ＼(　ˇωˇ)　
　　　 >　⌒ヽ
　　　/ 　 へ＼
　　 /　　/　＼＼
　　 ﾚ　ノ　　 ヽ_つ
　　/　/
　 /　/| NEW DATA DUMP
　(　(ヽ
　|　|、＼
　| 丿 ＼ ⌒)
　| |　　) /
`ノ ) 　 Lﾉ
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https://archive.org/details/stackexcha

Stack Exchange Data Dump : Stack Exchange, Inc. : Free Download, Borrow, and Streaming : Internet Archive
This is an anonymized dump of all user-contributed content on the Stack Exchange network. Each site is formatted as a separate archive consisting of XML files...

Saying that "community is the future of AI" is suspiciously close to the baronies of precarity calling themselves "the sharing economy"
https://stackoverflow.blog/2023/04/17/community-is-the-future-of-ai/
(Also OMG was this…

Community is the future of AI - Stack Overflow

FINALLY! No doubt got lucky, but I do think I’m improving.
#CellTower 709
➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️ https://www.andrewt.net/puzzles/cell-tower/?p=709

Cell Tower
Find the hidden words in the stack of random letters

stackoverflow: Stack Overflow favorites (2011)
A bipartite network of users and the posts they have favorited, from the online Q&A site Stack Overflow. An edge (i,j) connects a user i to a post j if that user "favorited" that post (a kind of a rating). Edges are timestamped.
This network has 641876 nodes and 1301942 edges.
Tags: Economic, Preferences, Unweighted, Timestamps

Nearly!
#CellTower 736
⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️➡️➡️➡️➡️⬇️
➡️➡️➡️➡️➡️➡️➡️➡️➡️⬆️⬛️⬛️⬛️➡️ https://www.andrewt.net/puzzles/cell-tower/?p=736

Cell Tower
Find the hidden words in the stack of random letters

stackoverflow: Stack Overflow favorites (2011)
A bipartite network of users and the posts they have favorited, from the online Q&A site Stack Overflow. An edge (i,j) connects a user i to a post j if that user "favorited" that post (a kind of a rating). Edges are timestamped.
This network has 641876 nodes and 1301942 edges.
Tags: Economic, Preferences, Unweighted, Timestamps

This https://arxiv.org/abs/2312.05960 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Moduli spaces of framed sheaves on compactified Kleinian singularities
Consider a Kleinian singularity $ \mathbb{C}^2/Γ$, where $ Γ$ is a finite subgroup of $ SL_2(\mathbb{C}) $. In this paper, we construct moduli spaces of framed sheaves on a projective Deligne-Mumford stack compactifying the singularity, and we show that these moduli spaces are quasiprojective schemes.

stackoverflow: Stack Overflow favorites (2011)
A bipartite network of users and the posts they have favorited, from the online Q&A site Stack Overflow. An edge (i,j) connects a user i to a post j if that user "favorited" that post (a kind of a rating). Edges are timestamped.
This network has 641876 nodes and 1301942 edges.
Tags: Economic, Preferences, Unweighted, Timestamps

#CellTower 735
⬛️⬛️⬛️➡️➡️➡️➡️➡️➡️➡️➡️⬇️⬛️⬛️
⬛️⬛️➡️⬆️⬛️⬛️⬛️⬛️⬛️⬛️⬛️➡️⬇️⬛️
⬛️⬛️⬆️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬇️⬛️
➡️➡️⬆️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️➡️➡️ https://www.andrewt.net/puzzles/cell-tower

Cell Tower
Find the hidden words in the stack of random letters

#CellTower 712
⬛️⬛️⬛️⬛️⬛️⬛️⬛️➡️⬇️⬛️⬛️⬛️⬛️⬛️
⬛️⬛️➡️➡️➡️⬇️🔮⬆️➡️➡️➡️➡️➡️⬇️
➡️➡️⬆️⬛️⬛️➡️⏹️⬆️⬛️⬛️⬛️⬛️⬛️➡️ https://www.andrewt.net/puzzles/cell-tower/?p=712

Cell Tower
Find the hidden words in the stack of random letters

On products of K-moduli spaces
Thedoros S. Papazachariou
https://arxiv.org/abs/2403.04544 https://arxiv.org/pdf/2403.04544

On products of K-moduli spaces
We study the K-moduli space of products of Fano varieties in relation to the product of K-moduli spaces of the product components. We show that there exists a well-defined morphism from the product of K-moduli stacks of Fano varieties to the K-moduli stack of their product. We further show that this morphism is an isomorphism if the two varieties are non-isomorphic, and a torsor if they are. Our results rely on the theory of stacks, and we extend them to general Artin stacks admitting good modu…

qa_user: User interactions on Q&A websites (2016)
Networks of interactions among users from four online Q&A sites: Stack Overflow, Math Overflow, Super User, and Ask Ubuntu. A directed edge (i,j) indicates a user i responded to user j's post. Edges are timestamped. For each Q&A site, four differently defined networks are provided, based on the definition of an edge: (i) a user answered a question, (ii) a user commented on a question, (iii) a user commented on an answer…

stackoverflow: Stack Overflow favorites (2011)
A bipartite network of users and the posts they have favorited, from the online Q&A site Stack Overflow. An edge (i,j) connects a user i to a post j if that user "favorited" that post (a kind of a rating). Edges are timestamped.
This network has 641876 nodes and 1301942 edges.
Tags: Economic, Preferences, Unweighted, Timestamps

This https://arxiv.org/abs/2112.10830 has been replaced.
link: https://scholar.google.com/scholar?q=a

Nonabelian Hodge theory for stacks and a stacky P=W conjecture
We introduce a version of the P=W conjecture relating the Borel-Moore homology of the stack of representations of the fundamental group of a genus g Riemann surface with the Borel-Moore homology of the stack of degree zero semistable Higgs bundles on a smooth projective complex curve of genus $g$. In order to state the conjecture we propose a construction of a canonical isomorphism between these Borel-Moore homology groups. We relate the stacky P=W conjecture with the original P=W conjecture co…

On the stack of 0-dimensional coherent sheaves: structural aspects
Barbara Fantechi, Andrea T. Ricolfi
https://arxiv.org/abs/2403.03878 https://

On the stack of 0-dimensional coherent sheaves: structural aspects
Let $X$ be a quasiprojective scheme. In this expository note we collect a series of useful structural results on the stack $\mathscr{C}oh^n(X)$ parametrising $0$-dimensional coherent sheaves of length $n$ over $X$. For instance, we discuss its functoriality (in particular its behaviour along étale maps), the support morphism to $\mathrm{Sym}^n(X)$, and its relationship with the Quot scheme of points $\mathrm{Quot}_X(\mathcal E,n)$ for fixed $\mathcal E\in \mathrm{Coh}(X)$.

This https://arxiv.org/abs/2312.01825 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Galois descent for motivic theories
We give necessary conditions for a category fibred in pseudo-abelian additive categories over the classifying topos of a profinite group to be a stack; these conditions are sufficient when the coefficients are $\mathbf{Q}$-linear. This applies to pure motives over a field in the sense of Grothendieck, Deligne-Milne and André, to mixed motives in the sense of Nori and to several motivic categories considered in arXiv:1506.08386 [math.AG]. We also give a simple proof of the exactness of a sequen…