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1000 results for “sparse_array”

  1. Sanderford et al. introduce MyESL, an open-source software to perform evolutionary sparse learning analyses and features for phylogenomic alignments, and molecular evolutionary metrics.

    🔗 doi.org/10.1093/molbev/msaf224

    #evobio #molbio #compbio

  2. @ekis @[email protected] I often work with monorepos like the for . That's when git worktrees and sparse checkouts can help reduce checkout time and drive space exhaustion. Check out heaths.dev/tips/2022/06/18/red for some tips. I should probably update that to mention worktrees too, though that really just helps reduce cloning time and minimizes disk space.

    One advantage is having different copies of dependencies in different states, though I wonder how often that's a problem.

  3. It's interesting how two different points of view can create a lot of confusion. For a very long time, I thought a sparse set is a replacement for a dictionary <int, T> while in reality is more like an efficient data structure for set operations. Faster than hashmaps or BitArray. btw I am super curious about testing roaring bitmaps, any experience?

    #coding #gamecode

  4. It's interesting how two different points of view can create a lot of confusion. For a very long time, I thought a sparse set is a replacement for a dictionary <int, T> while in reality is more like an efficient data structure for set operations. Faster than hashmaps or BitArray. btw I am super curious about testing roaring bitmaps, any experience?

    #coding #gamecode

  5. It's interesting how two different points of view can create a lot of confusion. For a very long time, I thought a sparse set is a replacement for a dictionary <int, T> while in reality is more like an efficient data structure for set operations. Faster than hashmaps or BitArray. btw I am super curious about testing roaring bitmaps, any experience?

    #coding #gamecode

  6. 🧵 Post 1 / 3 — The Observation
    🌀 A spirograph and quantum mechanics
    While playing with a spirograph, we noticed something unexpectedly useful.
    Simple mechanical constraints — rotation, phase relationships, and boundaries — generate nodal structures and dense/sparse regions that look strikingly like quantum probability distributions.
    This doesn’t replace quantum mechanics, and it doesn’t claim electrons trace literal paths.
    But it does raise an important question: if probability distributions emerge from constraints and interference, shouldn’t we be explicit about what those constraints are?
    🌀
    #Physics #QuantumMechanics #Spirograph #PatternsInNature #ScienceEducation

  7. arxiv.org/abs/2603.12358

    Here is the *third* manuscript coming out of the "Topics in Ramsey theory" online-only problem-solving session (sparse-graphs.mimuw.edu.pl/dok) of the Sparse (Graphs) Coalition, which took place less than a year ago.

    It is still surprising to realise what one can make of such events, if they are set up well.

    #combinatorics #remoteconferences #graphtheory #extremalcombinatorics #openscience

  8. #Croatia, Day 3. We visited #DugiOtok, #Sali and #Telascica park. We had to take a ferry, which sparse cruising hours put a strain on our far from punctual family. We spent some time on the beach at #JezeroMir, looking at some crabs and sitting in the shadows, like vampires…🥰😂 The 2,5km walk was a nightmare with children…🤡

  9. Found this many years ago via a CD accompanying the German progressive rock magazine #eclipsed:

    #RayCooper - The Puritan

    youtube.com/watch?v=6wVQTAfoVhA

    Love the sparse but very atmospheric arrangement. And the melodies are hauntingly beautiful despite the dire subject mater.

    #SignOfTheCross #TuneTuesday #Folk

  10. “Gulllies and Strata, Morning Light” — Highly eroded gullies and strata, Death Valley National Park.

    Some geological formations in Death Valley National Park are simply otherworldly. The sparse vegetation lays these features bare — they are more visible than in places covered by forests and other vegetation. The landscape has been uplifted, split, warped, and eroded in remarkable ways. Here tilted strata emerge in deeply eroded land, and morning shadows add more contrast…continues: gdanmitchell.com/2025/03/13/gu

    #deathvalley #desert #geology #nationalpark #strata #landscapephotography #photography

  11. 𝗔𝗱𝗱𝗿𝗲𝘀𝘀𝗶𝗻𝗴 𝗦𝗲𝗮𝘀𝗼𝗻𝗮𝗹 𝗔𝗳𝗳𝗲𝗰𝘁𝗶𝘃𝗲 𝗗𝗶𝘀𝗼𝗿𝗱𝗲𝗿 (𝗦𝗔𝗗)
    Seasonal Affective Disorder is a form of depression that occurs at specific times of the year, often during the winter months when daylight is sparse. The symptoms can include fatigue, hopelessness, and social withdrawal, affecting the overall quality of life.

    Learn more at sentrycasa.com/smart-lighting-

    #𝘈𝘶𝘵𝘰𝘮𝘢𝘵𝘪𝘰𝘯 #𝘚𝘮𝘢𝘳𝘵𝘏𝘰𝘮𝘦𝘚𝘰𝘭𝘶𝘵𝘪𝘰𝘯𝘴 #𝘏𝘦𝘢𝘭𝘵𝘩𝘈𝘯𝘥𝘞𝘦𝘭𝘭𝘯𝘦𝘴𝘴 #𝘛𝘦𝘤𝘩𝘍𝘰𝘳𝘏𝘰𝘮𝘦 #𝘋𝘪𝘨𝘪𝘵𝘢𝘭𝘓𝘪𝘷𝘪𝘯𝘨

  12. Fun little gig tonight performing a set at Ric Neale's Monochrome night in Wakefield!

    Setlist was: Labels / Acceptance / Colours With Pride / Down With The Kids / Can’t Dance Don't Care / One Girl Girl / Use Your Imagination

    No idea when my next gig is (the diary's intentionally sparse but I think I need to do something about that) but best place to keep up is bleedingobvious.uk/gigs

    #wakefield #westyorkshire #liveShows #liveGigs #queerMusician #lgbtqia #queerMusic #piano #performingArts

  13. BeetBear and I went out this morning to see what could be done to get the season moving. First up he paid his respects to what he calls the "Bear Tulips" (crocus). They had a bad winter and are very sparse this year. We'll have to plant more this fall... He also checked on the rhubarb, which is just starting to emerge. Now we move on to business. More later
    #BeetBear
    #Gardening
    #Allotment
    #NewEngland
    #Spring
    #Zone6b

  14. RE: mastoxiv.page/@arXiv_mathCO_bo

    Here is the second manuscript coming out of the "Topics in Ramsey theory" online-only problem-solving session (sparse-graphs.mimuw.edu.pl/dok) of the Sparse (Graphs) Coalition, which took place less than a year ago.

    The first manuscript already came out a couple months earlier (arxiv.org/abs/2510.17981).

    Both have made serious progress in serious Erdős problems.

    #combinatorics #remoteconferences #graphtheory #extremalcombinatorics #erdős

  15. #CeasefireNOW #GazaGenocide #StopAlGenocidio #StopArmingIsrael

    "Sembra che il nostro tentativo di fare tutto il possibile per informare il mondo sulla nostra sofferenza non sia sufficiente.
    Da più di 200 giorni scopriamo fosse comuni sparse per tutta Gaza.
    Da più di 200 giorni sfuggiamo ad attacchi implacabili
    Da più di 200 giorni, i bambini nascono sotto il ronzio minaccioso degli aerei, e donne e bambini patiscono sofferenze indescrivibili per mano dell’esercito israeliano."

    #5maggio #Gaza #Palestine #Israel #ApartheidIsrael #IsraeliOccupation #PACE #Peace #NOwar #RestiamoUmani #HumanRights

    mekomit.co.il/%d7%90%d7%a0%d7%

  16. Population-based physical activity promotion with a focus on health equity: a review of reviews

    ▫️Several effective approaches to promote #physicalactivity in the #generalpopulation

    ▫️Evidence regarding #healthequity is sparse

    ▫️Lack of evidence regarding the type of tailoring & the long-term impact of population-based PA promotion

    ▫️Appropriate funding programs, complex study designs & evaluation methods are required

    #reviewofreviews #healthpromotion

    equityhealthj.biomedcentral.co

  17. 🇬🇧 Soft Cell "Say Hello, Wave Goodbye" – 2018

    A haunting deconstruction by Dave Ball himself, this Lateral Mix strips the classic down to its emotional skeleton. Sparse, atmospheric, and cinematic, it trades pop drama for moody introspection. A twilight rework that feels like walking through empty streets at closing time...

    #softcell #daveball #synthpop #minimalwave #electronicmusic #vinyl #music #vinylrecords #vinylcollection #vinylcollector #nowspinningonvinyl #nowspinning #nowlistening

  18. Maybe connected to my re-reading _Fellowship of the Ring_ (which involves a lot of wandering around weird forests) but the more I read the second edition of #Cairn #cairn2e the more I think it's amazing stuff. 1e could reasonably be criticised for being a bit sparse on direction and theme but 2e not only has terrific backgrounds but also some of the best GM and prep advice around - including examples of play, which many modern games lack, to their detriment.

    Plus, free.

    cairnrpg.com/second-edition/

  19. I wrote up a little blog post comparing the runtime and memory allocation of how we used to create dummy variables with the new sparse support I added in tidymodels

    emilhvitfeldt.com/post/sparse-

  20. My #introduction 👋 to the fediverse.

    My name is John Jolly and I'm currently a graduate student at the #UofU in #SLC. I research #compiler optimizations on sparse tensor data layouts.

    I'm also an adjunct professor at #UVU. I teach OS theory and compilers.

    I worked for 10 years at #SUSE as a #linux kernel developer on #s390 and #hpc maintainer.

    Before that I worked 15 years for #wordperfect - #novell - #microfocus.

    I'm an amateur #astronomer and love #retro #arcade systems.

  21. "Try to Remember" is a song about nostalgia from the #musicalComedy play #TheFantasticks (1960). It is the first song performed in the show, encouraging the audience to imagine what the sparse set suggests. The words were written by the American lyricist #TomJones while #HarveySchmidt composed the music.
    youtube.com/watch?v=xoRdgE9AiMk

  22. Pedalata Resistente - Chieri

    Piazza Don Bosco, Chieri, domenica 19 aprile alle ore 15:30 CEST

    Pedalata resistente

    Pedalara tra le lapidi sparse per chieri

    Ritrovo in Stazione, ore 15.30

    Andremo a riscoprire le storie dei partigiani che hanno liberato la nostrà città per capire e conoscere le nostre radici politiche.

    Giro in bici adatto a tutt3, se non hai una bici contattaci!

    gancio.cisti.org/event/pedalat

  23. Ivar Grydeland – Bøyning, Brytning freq.org.uk/reviews/ivar-gryde Utilising, electric, #pedalsteel and Portuguese guitars along with electronics, his sparse, diffuse sounds evoke the lull of the surface and the mystery of the depths. #musicreview