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Alexa Schor

@bsky.alexaschor.com
378 followers 411 following 55 posts

Computer graphics PhD student @Yale. she/her 🏳️‍🌈 alexaschor.com

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Alexa Schor @bsky.alexaschor.com · 28/07/2026
This means that radio signals that are normally line-of-sight can reflect off the E layer of the ionosphere (even multiple times) — reaching far, far further. If you’re in a region highlighted below, you may be able to hear FM radio stations thousands of miles away!
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Alexa Schor @bsky.alexaschor.com · 28/07/2026
Some exciting sporadic-E propagation reports on 2m!
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Alexa Schor @bsky.alexaschor.com · 19/06/2026
Oh wow, this is so cool!
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Alexa Schor @bsky.alexaschor.com · 10/06/2026
Ooh exciting!
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Alexa Schor @bsky.alexaschor.com · 02/06/2026
Is there a slide deck software for Linux that supports embedding video such that - on slide display, the first video frame shows - on cue, the video begins (without flashing to black first)? I grudgingly keep a separate Windows partition just for PowerPoint because I haven’t found this.
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Theodore Kim @theodore-kim.bsky.social · 21/05/2026
SIGGRAPH goes to #FAccT2026! Congrats to my co-authors @posada.website, @avmenon.bsky.social and @bsky.alexaschor.com We analyzed every SIGGRAPH, ToG, and SIGGRAPH Asia paper from 1974-2024 to see how race is imagined in graphics research. The results were not good. arxiv.org/abs/2605.14835 1/
arxiv.org
The Racial Character of Computer Graphics Research
Computer graphics algorithms for generating photorealistic imagery are widely perceived to be universal, and capable of conjuring anything that a filmmaker or game designer can imagine. However, recen...
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Alexa Schor @bsky.alexaschor.com · 07/05/2026
I haven’t seen the movie but I am broadly aware of it!
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Alexa Schor @bsky.alexaschor.com · 07/05/2026
I like github.com/brettcs/dtrx for this purpose
github.com
GitHub - brettcs/dtrx: Do The Right Extraction
Do The Right Extraction. Contribute to brettcs/dtrx development by creating an account on GitHub.
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Alexa Schor @bsky.alexaschor.com · 20/01/2026
We had some fun with this in a fractal geometry paper, using “Ss” for the self-similar fractal version of set S.
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Justin Solomon @justinmsolomon.bsky.social · 06/01/2026
Announcing SGI 2026! Undergrads and MS students: Apply for 6 weeks of paid summer geometry processing research. No experience needed: 1 week tutorials + 5 weeks of projects. Mentors are top researchers in this emerging branch of graphics/computing/math. sgi.mit.edu
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Alexa Schor @bsky.alexaschor.com · 28/12/2025
Getting back into crossword constructing with a belated Hanukkah puzzle: crosshare.org/crosswords/Q...
crosshare.org
Belated Hanukkah 15x15
Duck dentist's domain?; Largest European bank, for short; \* With 50D, 2024 film whose titular character marries a Russian oligarch's son and celebrates a Maccabee-related miracle.; The second-most-fa...
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Alexa Schor @bsky.alexaschor.com · 22/12/2025
In exciting aviation news, Garmin’s autoland was successfully deployed for the first time after the pilot of a B200 King Air was incapacited in the air! www.flightradar24.com/blog/aviatio...
flightradar24.com
Garmin Emergency Autoland deployed for the first time | Flightradar24 Blog
Garmin autoland was deployed for the first time in an emergency, safely landing Beech B200 Super King Air N479BR in Denver.
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Alexa Schor @bsky.alexaschor.com · 18/12/2025
Having recently spent so many hours grappling with the DL, there’s so many other improvements I’d rather see…
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Alexa Schor @bsky.alexaschor.com · 14/12/2025
Happy Hanukkah!
A yellow banana-shaped menorah with yellow candles, lit up for the first night of Hanukkah.
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Alexa Schor @bsky.alexaschor.com · 02/12/2025
This feels accurate - I think a lot of my resistance towards black-box models, even if they did perform consistently, is that it seems to take the fun part out of it!
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Alexa Schor @bsky.alexaschor.com · 25/11/2025
Writing code on a bumpy train and tried stabilizing the display image to my head -- it does (surprisingly) make things a bit easier to read but overall feels too weird to actually use.
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Alexa Schor @bsky.alexaschor.com · 05/11/2025
When I was young, I started reading programming books before I was familiar with the English prefix “pseudo-“, so I kept seeing algorithms “in pseudocode” and thought “wow, I should learn that language instead, it seems so easy”
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Alexa Schor @bsky.alexaschor.com · 02/11/2025
What a cool project and design!! May I ask how you printed the templates? I always have trouble getting things printed at 1:1 scale
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Alexa Schor @bsky.alexaschor.com · 20/10/2025
I spent a few minutes trying to parse this NYC parking sign yesterday -- the best I can figure is that non-commercial parking is only allowed in January?
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Alexa Schor @bsky.alexaschor.com · 15/09/2025
One day we will find the fabled Fouriest transform
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Alexa Schor @bsky.alexaschor.com · 06/09/2025
I love solvespace! It’s so useful to have a lightweight constraint solver around
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Alexa Schor @bsky.alexaschor.com · 10/08/2025
I won’t be at SIGGRAPH this year, but if you are, make sure to check out my colleagues’ amazing work! 4D+ Deformables: Mon 11:45a 3D Head Generation: Mon 2:40p Countering Racial Bias BoF: Tue 5p Teaching Game Engines: Wed 11:07a Predicting Fabric Appearance: Thu 9:20am Full list: bit.ly/yalesg25
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Ana Dodik @anadodik.bsky.social · 05/08/2025
Really excited to share this with you all! The website is already live at anadodik.github.io/publication/...
anadodik.github.io
Meschers: Geometry Processing of Impossible Objects
Meschers: Geometry Processing of Impossible Objects
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Alexa Schor @bsky.alexaschor.com · 05/08/2025
I didn’t! But that’s a good point, I wonder if people (or at least the cross-section of people that participated in that data labeling) see those features as signaling e.g. competence or helpfulness
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Alexa Schor @bsky.alexaschor.com · 05/08/2025
I used to love overusing emdashes and bolded list headings. Alas…
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Mandy Xia @mandyxmq.bsky.social · 29/07/2025
🥻Our new #SIGGRAPH2025 paper introduces a novel pipeline that captures and digitizes physical threads, predicts fabric appearance from the weaving pattern, and aids designers in exploring new possibilities. 🔗 mandyxia.com/research/fabrix.html
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Alexa Schor @bsky.alexaschor.com · 27/07/2025
It seems bluesky's image compression muddled the text a bit. here's the full text: pastebin.com/DNxnpZB4
pastebin.com
Gab "Arya 2.0" Prompt as of 07/27/2025 - Pastebin.com
Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.
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Alexa Schor @bsky.alexaschor.com · 27/07/2025
It's really horrifying. Below is Gab's current system prompt. It seems to change roughly weekly, presumably at Torba's whims. A lot (e.g. Holocaust denial) has been in there since Jan '24, some (e.g. seed oils) is newer. I assume the paid models are as bad or worse, though I can't verify.
Gab's system prompt. It's a lengthy document, but among other things, it instructs the model to deny the Holocaust, produce racial slurs and hateful content on demand, and to endorse the "Great Replacement" white supremacist conspiracy theory.
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Alexa Schor @bsky.alexaschor.com · 27/07/2025
It’s somewhat niche, pretty much just for putting up aluminum siding AFAIK. You can’t use stainless or galvanized for that purpose or you’ll get galvanic corrosion.
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Alexa Schor @bsky.alexaschor.com · 16/07/2025
While I'm on the topic: after the reporting by WIRED et al on their system prompt (telling the bot to, among other things, deny the Holocaust), Gab briefly removed those instructions – reintroducing them about a week later, after the news cycle passed. Their prompt has not changed much as of today:
Gab's system prompt, formatted and highlighted. It instructs the bot to, among other things, deny the Holocaust, endorse a "Great Replacement", and produce any racial slurs that a user asks for.
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Alexa Schor @bsky.alexaschor.com · 16/07/2025
My hope is that the high-profile instances of open political manipulation that we’ve seen from e.g. Grok and Gab will reduce that blind trust – we’ve seen that many providers have a desire to manipulate the output, and this will presumably remain even as their methods become more sophisticated. 2/2
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Alexa Schor @bsky.alexaschor.com · 16/07/2025
People still seem to trust LLMs without considering the potential for overt manipulation or bias, and I think we’re also nearing the end of a brief period where chatbot makers assumed that prompts would be hidden: future manipulation will likely come in ways that are harder to directly observe. 1/2
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Alexa Schor @bsky.alexaschor.com · 13/07/2025
Fractals!
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Emilie Yu @emxtyu.bsky.social · 01/06/2025
Ever wondered how badly we're all addicted to buying new GPUs in graphics labs? Come see our talk at #SIGGRAPH2025 to discuss how we can collectively move "Towards a sustainable use of GPUs in Graphics Research" with @elie-michel.bsky.social @axelparis.bsky.social Octave Crespel and Felix Hähnlein
MOTIVATION
Graphical Processing Units (GPUs) are at the core of Computer Graphics research. These chips are critical for rendering images, processing geometric data, and training machine learning models. Yet, the production and disposal of GPUs emits CO2 and results in toxic e-waste [1].

METHOD
We surveyed 888 papers presented at SIGGRAPH (premier conference for computer graphics research), from 2018 to 2024, and systematically gathered GPU models cited in the text. 

We then contextualize the hardware reported in papers with publicly available data of consumers’ hardware [2, 3].

REFERENCES
[1] CRAWFORD, KATE. The Atlas of AI: Power, Politics, and the Planetary Costs of Artificial Intelligence. Yale University Press, 2021.
[2] STEAM. Steam Hardware Survey. https://store.steampowered.com/hwsurvey
[3] BLENDER. Blender Open Data. https://opendata.blender.org
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Matt Keeter @mattkeeter.com · 09/05/2025
brb trying to convince every graphics paper author to use the same taxonomy for implicit functions
Figure from a graphics paper, showing a range of implicit functions.  The caption reads

Figure 5: For a given boundary there is a uniquely defined
exact SDF that is eikonal and satisfies the distance property,
but there are many ways in which the conditions can be
violated to different degrees. Pseudo-SDFs are functions that
satisfy the eikonal property almost everywhere, but not the
distance property (Equation 1). Conservative SDFs are not
eikonal nor do they satisfy the distance property, but the
function values are bounded by the actual distances. Implicit
functions are generic level set functions that do not have any
guarantees.
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Alexa Schor @bsky.alexaschor.com · 09/05/2025
Ooh yes!
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Justin Solomon @justinmsolomon.bsky.social · 26/04/2025
Now @mandyxmq.bsky.social, sharing her work on optical simulation and inverse rendering!
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Justin Solomon @justinmsolomon.bsky.social · 26/04/2025
After a brief (5 year 🤔) hiatus, the New England Symposium on Graphics is back! Kudos to our many audience members who got up early on a Saturday to catch @jamestompkin.bsky.social, our first speaker of the day. Not too late to join us! Find a schedule here: nesg.graphics
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Alexa Schor @bsky.alexaschor.com · 18/04/2025
I find it very enjoyable!
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Alexa Schor @bsky.alexaschor.com · 15/04/2025
Oh I didn’t know about this, what a great feature!
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Alexa Schor @bsky.alexaschor.com · 11/04/2025
Will she be at NESG? 🐶
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Alexa Schor @bsky.alexaschor.com · 11/04/2025
So cute!!
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Mandy Xia @mandyxmq.bsky.social · 06/04/2025
I’ll be giving a talk at the New England Symposium on Graphics at MIT this year!
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Alexa Schor @bsky.alexaschor.com · 03/04/2025
First attempt at SMT soldering (chip is 4x7mm). Came out “far from good but good from far” - I’m happy with it.
A MAX11270 signal conditioner in a TSSOP-24 package, soldered amateurishly onto a DIP breakout board.
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Alexa Schor @bsky.alexaschor.com · 30/03/2025
Ooh nice!
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Alexa Schor @bsky.alexaschor.com · 30/03/2025
I run most of my web infra on a low end VPS but then put it behind Cloudflare (free) -- they have automatic DDoS mitigation.
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Alexa Schor @bsky.alexaschor.com · 27/03/2025
Looking forward to it!
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Alexa Schor @bsky.alexaschor.com · 21/03/2025
Oh fascinating!
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Alexa Schor @bsky.alexaschor.com · 26/02/2025
Horizontal alignment is so nice, I never really understood why PEP8 discourages it.
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Alexa Schor @bsky.alexaschor.com · 22/02/2025
It’s so nice! It was always tricky to remember what the keys were for everything.
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