Discover and read the best of Twitter Threads about #turing

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Vamos falar de Alan Turing e uma de suas principais contribuições científicas?

Mais um #fatosdacomputação imagem de um jovem alan tur...
Nesse post vamos falar de Alan Turing, famoso cientista da computação e que ficou bastante popular em 2014, com o filme "Jogo da Imitação", inspirado em uma fase de sua vida.
Além da contribuição na quebra da criptografia nazista, Turing foi fundamental no surgimento da Ciência da Computação.
Read 9 tweets
UK students have been benefitting from #Erasmus pan-EU education exchange for 35 years. 200,000 people are now taking part. They'll suddenly lose access in 6 days.

@BorisJohnson insisted that UK students wouldn't lose this education after #Brexit. Now he says it's too expensive.
Two important points on #Erasmus:

👩‍🎓It largely benefitted students from middle-class families who otherwise wouldn't have been able to afford to study abroad.

Without it, study abroad will again be only available to the rich, like where I come from in the US.
🇺🇸 Johnson intends to replace #Erasmus with a "#Turing Programme" that will send students all over the world. I expect that will be mostly to the US.

Due to the difference in tuition fees, money that could send 100 students to Europe can probably only send 5 students to America.
Read 4 tweets
Mimicking Simple Life Without Biochemistry

Follow this thread for insights from today's SFI Seminar by Juan PĂ©rez-Mercader (SFI + @Harvard), which you can watch live on our FB page. Recording will be saved for later viewing at this link, as well as YT:

facebook.com/santafeinstitu…
More info about today's seminar by SFI External Professor Juan PĂ©rez-Mercader (@Harvard) on Mimicking Simple Life Without Biochemistry:

santafe.edu/events/mimicki…

#astrobiology #biochemistry #complexity
What properties characterize life? The search for a fundamental theory of #biology continues to face some serious challenges:
• n = 1
• no unified math
• can't modify carbon experimentally
• biology is still process-description
BUT: ✨ info-metabolism-replication-evolution ✨
Read 10 tweets
To help me get back into some sort of routine, I’m going to restart my #paperperday challenge and finish when normal life resumes. Yes, your timeline with be spammed with papers focusing on psychology, cognitive neuroscience, reproducible, and transparent research, again!
#1 Seven Steps Toward Transparency and Replicability in Psychological Science psyarxiv.com/32uz6/ by @dstephenlindsay

“these are...disciplines, practices, even aspirations...I’m still working on them myself...most of us would do better science if we worked on these“ Image
#2 Why Are Self-Report and Behavioral Measures Weakly Correlated? By @dangjunhua @KMKing_Psych @minzlicht

“These tasks tend to have low reliability, making them unsuitable for psychiatric diagnoses of individuals”

#measurementschmeasurement

doi.org/10.1016/j.tics… ImageImageImage
Read 51 tweets
No me han matado fĂ­sicamente, no. Es aĂşn peor: me han robado el alma.

Tras haber respondido tantas preguntas, ahora me asalta la más importante: ¿por qué yo?

Me llamo…
ALAN M. #TURING
… y esta es mi historia.

#EnHebrasMatemáticas #Orgullo2019 #Pride2019

Dentro HILO ⬇️⬇️
Hace unos dĂ­as, Robin [Gandy] y yo estuvimos en Hollymeade.

A pesar de todo no me he encontrado mal y me alegró ver cómo ha crecido la vieja enredadera. Aquella casa, que compré con tanta alegría, me ha transportado, sin embargo, a los hogares que dejé olvidados en la memoria.
Nada me aturde más como viajar a mi más tierna infancia. La oscuridad en el recuerdo es suplida por el frío más gélido, y por la soledad de la casa de los Ward, que nos acogieron a John y a mí, mientras nuestros padres seguían en Madrás.
Read 62 tweets
Il genio della matematica, #Turing, fu costretto ad accettare la #castrazionechimica in quanto gay, allora in GB era un reato. Si suicido'. Essa è una pratica di menomazione fisica, spesso con effetti irreversivibili. E' legale in Germania: infatti, è grave. Non bisogna copiarla.
La Germania (dal 69) permette la #castrazionechimica e quella fisica (!!), la Germania è stata ammonita dall'"European Committee for the Prevention of Torture and Inhuman or Degrading Treatment or Punishment (CPT)" di non applicarla, perché tortura, pratica inumana.
L'effetto "deterrente" è basso, in questo sono d'accordo i criminologi, in più si trattterebbe sempre di una pratica "volontaria" di assunzione di farmaci che dovrebbero esser interrotti nel caso di problemi seri per la vita della persona, come avviene nella maggior parte.
Read 11 tweets
La madrugada del 9 de mayo de 1945 llegĂł a Bletchley Park la noticia de la rendiciĂłn de Hitler.

Unos 10000 descifradores de códigos vibraron entonces de júbilo. Más de 6600 eran MUJERES.

#EnHebrasMatemáticas
#DíaMujerYNiñaEnCiencia #11F2019 #QueCorraSuVoz

Dentro HILO ⬇️
En la Primera Guerra Mundial, mientras los compañeros malvivían, en el mejor de los casos, rodeados de cadáveres putrefactos y diezmados por las bombas y el gas mostaza, el soldado #Hitler, un artista fracasado que pintaba postales, fue destinado a un cómodo trabajo de correo.
El desenlace de la primera gran contienda en 1918 fue el caldo de cultivo perfecto para que aquel anodino personaje, introvertido y solitario, comenzara a batir sus alas hasta desencadenar el más vergonzante episodio de la historia de la Humanidad.
Read 31 tweets
Back of the envelope calculation:
RTX 2080Ti: 10GRay/s @ 616GB/s mem bandwidth = 61 bytes/Ray
1 triangle, 3x 32 bit float3 vertices: 48 bytes
61 - 48 = 13 bytes left for BVH traversal

That would be under an ideal BVH that requires only 1 ray triangle intersection/ray
Compressed wide BVH (research.nvidia.com/sites/default/…) requires 80 Bytes per BVH node. A balanced BVH8 over 1 million triangles is 7 level deep, so we're looking at 80 bytes * 7 = 560 bytes of processed data per ray. Times ten gigarays/s = 5.6 TB/s of bandwidth just for BVH traversal.
#Volta #V100 has 12-14TB/s shared memory bandwidth (arxiv.org/pdf/1804.06826…), so 10GRays/s are plausible if most of the data fits in L1 cache/shard mem.
V100 has 80 SMs with 128KB L1/shared mem each, a total of 10MB. 10MB aren't enough to fit a 7 levels deep BVH8.
Read 10 tweets

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