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Steven P. Sanderson II, MPH<p>💻🔧 Want to handle errors in R like a pro? Check out my latest blog post on using the tryCatch() function! Learn how to make your code more robust and avoid crashes.</p><p>👉 Read more here: <a href="https://www.spsanderson.com/steveondata/posts/2025-04-28/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">spsanderson.com/steveondata/po</span><span class="invisible">sts/2025-04-28/</span></a></p><p><a href="https://mstdn.social/tags/RStats" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RStats</span></a> <a href="https://mstdn.social/tags/Coding" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Coding</span></a> <a href="https://mstdn.social/tags/Data" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Data</span></a> <a href="https://mstdn.social/tags/Errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Errors</span></a> <a href="https://mstdn.social/tags/Learn" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Learn</span></a> <a href="https://mstdn.social/tags/TryCatch" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TryCatch</span></a> <a href="https://mstdn.social/tags/Blog" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Blog</span></a></p>
seanpm2001 🇺🇦️<p>If there are any OpenStreetMap contributors reading, I have an important correction that needs to be made regarding Spokane, Washington:</p><p>I used to live on the South Hill, and could walk to Moran Prairie Elementary School within 10 minutes. It was located at the base of the hill (the street I used to live on is highlighted in orange) However, on OpenStreetMap, it is showing Chase Middle School, which is much further away. I don't know how to edit OpenStreetMap, but there is an important correction that needs to be made here.</p><p>I have noted this error to be visible for over 2 months without any attempts to fix it.</p><p><a href="https://techhub.social/tags/openstreetmap" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>openstreetmap</span></a> <a href="https://techhub.social/tags/osm" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>osm</span></a> <a href="https://techhub.social/tags/spokane" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>spokane</span></a> <a href="https://techhub.social/tags/washington" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>washington</span></a> <a href="https://techhub.social/tags/cartography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cartography</span></a> <a href="https://techhub.social/tags/maps" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>maps</span></a> <a href="https://techhub.social/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> <a href="https://techhub.social/tags/maperrors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>maperrors</span></a></p>
Aral Balkan<p>Sometimes I’m playing with Kitten and something makes me smile. This time, it’s an error message. Always nice when you get a little hat-tip from past you to current you. Thanks for putting in the work, past me ;)</p><p><a href="https://mastodon.ar.al/tags/Kitten" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Kitten</span></a> <a href="https://mastodon.ar.al/tags/SmallWeb" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SmallWeb</span></a> <a href="https://mastodon.ar.al/tags/web" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>web</span></a> <a href="https://mastodon.ar.al/tags/dev" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dev</span></a> <a href="https://mastodon.ar.al/tags/design" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>design</span></a> <a href="https://mastodon.ar.al/tags/usability" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>usability</span></a> <a href="https://mastodon.ar.al/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a></p>
Zhi Zhu 🕸️<p>DOGE’s credibility is shot.<br><a href="https://robertreich.substack.com/p/this-weeks-ten-reasons-for-modest" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">robertreich.substack.com/p/thi</span><span class="invisible">s-weeks-ten-reasons-for-modest</span></a></p><p>"DOGE has saved the govt just $2 billion. That comes to 1/35 of 1% of the federal budget.</p><p>Repeated <a href="https://newsie.social/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> have raised questions about the quality &amp; veracity of the <a href="https://newsie.social/tags/information" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>information</span></a> Musk’s <a href="https://newsie.social/tags/DOGE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DOGE</span></a> is putting out. The mistakes also call into question the team members’ competence — whether they understand the <a href="https://newsie.social/tags/government" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>government</span></a> well enough to cut it while avoiding catastrophe."</p><p><a href="https://newsie.social/tags/ElonMusk" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ElonMusk</span></a> <a href="https://newsie.social/tags/Musk" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Musk</span></a> <a href="https://newsie.social/tags/Coup" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Coup</span></a> <a href="https://newsie.social/tags/Corruption" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Corruption</span></a> <a href="https://newsie.social/tags/Trump" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Trump</span></a> <a href="https://newsie.social/tags/GOP" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GOP</span></a> <a href="https://newsie.social/tags/USPol" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>USPol</span></a> <a href="https://newsie.social/tags/Politics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Politics</span></a> <a href="https://newsie.social/tags/News" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>News</span></a> <a href="https://newsie.social/tags/USA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>USA</span></a></p>
h o ʍ l e t t<p>→ When Your Last Name Is Null, Nothing Works<br><a href="https://www.wsj.com/lifestyle/null-last-name-computer-scientists-forms-f0a43b08" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">wsj.com/lifestyle/null-last-na</span><span class="invisible">me-computer-scientists-forms-f0a43b08</span></a></p><p>“His last name is Null, the same word used by computer scientists to mean "no value" or "invalid value." The Nulls of the world, it turns out, endure a lifetime of website bouncebacks, processing errors and declarations by customer-service representatives that their accounts don’t exist.”</p><p><a href="https://mamot.fr/tags/Null" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Null</span></a> <a href="https://mamot.fr/tags/name" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>name</span></a> <a href="https://mamot.fr/tags/computer" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>computer</span></a> <a href="https://mamot.fr/tags/bouncebacks" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>bouncebacks</span></a> <a href="https://mamot.fr/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> <a href="https://mamot.fr/tags/exist" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>exist</span></a></p>
Phracker<p>H4xx0r5p4c3</p><p>Just something I made in GIMP. An edit of a databending of an edit of a photo.</p><p><a href="https://mstdn.social/tags/Glitch" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Glitch</span></a> <a href="https://mstdn.social/tags/GlitchArt" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GlitchArt</span></a> <a href="https://mstdn.social/tags/Glitchcore" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Glitchcore</span></a> <a href="https://mstdn.social/tags/Psychedelic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Psychedelic</span></a> <a href="https://mstdn.social/tags/Psychedelia" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Psychedelia</span></a> <a href="https://mstdn.social/tags/PsychedelicArt" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PsychedelicArt</span></a> <a href="https://mstdn.social/tags/Trippy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Trippy</span></a> <a href="https://mstdn.social/tags/TrippyArt" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TrippyArt</span></a> <a href="https://mstdn.social/tags/Colorful" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Colorful</span></a> <a href="https://mstdn.social/tags/DotMatrix" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DotMatrix</span></a> <a href="https://mstdn.social/tags/Retro" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Retro</span></a> <a href="https://mstdn.social/tags/Retrocomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Retrocomputing</span></a> <a href="https://mstdn.social/tags/RetroAesthetic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RetroAesthetic</span></a> <a href="https://mstdn.social/tags/Landscape" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Landscape</span></a> <a href="https://mstdn.social/tags/Scape" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Scape</span></a> <a href="https://mstdn.social/tags/Scenery" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Scenery</span></a> <a href="https://mstdn.social/tags/GIMP" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GIMP</span></a> <a href="https://mstdn.social/tags/Photo" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Photo</span></a> <a href="https://mstdn.social/tags/Photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Photography</span></a> <a href="https://mstdn.social/tags/Photomanipulation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Photomanipulation</span></a> <a href="https://mstdn.social/tags/Manipulation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Manipulation</span></a> <a href="https://mstdn.social/tags/Pixel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixel</span></a> <a href="https://mstdn.social/tags/PixelArt" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PixelArt</span></a> <a href="https://mstdn.social/tags/Pixels" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixels</span></a> <a href="https://mstdn.social/tags/Digital" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Digital</span></a> <a href="https://mstdn.social/tags/DigitalArt" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DigitalArt</span></a> <a href="https://mstdn.social/tags/Art" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Art</span></a> <a href="https://mstdn.social/tags/Artwork" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Artwork</span></a> <a href="https://mstdn.social/tags/MastoArt" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MastoArt</span></a> <a href="https://mstdn.social/tags/ArtistOnMastodon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ArtistOnMastodon</span></a> <a href="https://mstdn.social/tags/AvantGarde" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AvantGarde</span></a> <a href="https://mstdn.social/tags/AvantGardeArtist" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AvantGardeArtist</span></a> <a href="https://mstdn.social/tags/Databending" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Databending</span></a> <a href="https://mstdn.social/tags/ArtHacking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ArtHacking</span></a> <a href="https://mstdn.social/tags/Corrupted" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Corrupted</span></a> <a href="https://mstdn.social/tags/Error" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Error</span></a> <a href="https://mstdn.social/tags/Errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Errors</span></a></p>
Paul Houle<p>👇 Falsehoods programmers believe about null pointers</p><p><a href="https://purplesyringa.moe/blog/falsehoods-programmers-believe-about-null-pointers/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">purplesyringa.moe/blog/falseho</span><span class="invisible">ods-programmers-believe-about-null-pointers/</span></a></p><p><a href="https://mastodon.social/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>programming</span></a> <a href="https://mastodon.social/tags/software" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>software</span></a> <a href="https://mastodon.social/tags/pointers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pointers</span></a> <a href="https://mastodon.social/tags/zero" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>zero</span></a> <a href="https://mastodon.social/tags/null" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>null</span></a> <a href="https://mastodon.social/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> <a href="https://mastodon.social/tags/billiondollarmistake" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>billiondollarmistake</span></a></p>
dusoft<p>It's so easy to depend on dd() function (Laravel) that I routinely forget about its non-existence in core PHP and have to change it to print_r() all the time now.<br><a href="https://fosstodon.org/tags/laravel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>laravel</span></a> <a href="https://fosstodon.org/tags/php" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>php</span></a> <a href="https://fosstodon.org/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a></p>
Melroy van den Berg<p><span class="h-card" translate="no"><a href="https://indieweb.social/@laurenshof" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>laurenshof</span></a></span> Hoi Laurens. We zagen een vervelend probleem met parsen van de JSON van jouw blog AP nodeinfo API: <a href="https://browser.pub/https://fediversereport.com/wp-json/activitypub/1.0/nodeinfo" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">browser.pub/https://fediverser</span><span class="invisible">eport.com/wp-json/activitypub/1.0/nodeinfo</span></a></p><p>Zoals je ziet in de JSON output returneert deze API activeMonth &amp; activeHalfyear als een string ("2") in plaats van een integer (2). Welke Wordpress plugin gebruik je? Dan meld ik dit probleem upstream.</p><p><a href="https://mastodon.melroy.org/tags/bugs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>bugs</span></a> <a href="https://mastodon.melroy.org/tags/activitypub" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>activitypub</span></a> <a href="https://mastodon.melroy.org/tags/parse" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>parse</span></a> <a href="https://mastodon.melroy.org/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> <a href="https://mastodon.melroy.org/tags/wordpress" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>wordpress</span></a></p>
Kent Pitman<p><span class="h-card" translate="no"><a href="https://mastodon.sdf.org/@screwtape" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>screwtape</span></a></span> </p><p>Well, the totality can be a function of other than args, so something that takes any kind of args can still err for other reasons. I don't know if that helps.</p><p>I don't know if you've read these papers but you might find them a bit more abstract:</p><p><a href="http://www.nhplace.com/kent/Papers/Exceptional-Situations-1990.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">http://www.</span><span class="ellipsis">nhplace.com/kent/Papers/Except</span><span class="invisible">ional-Situations-1990.html</span></a></p><p><a href="http://www.nhplace.com/kent/Papers/Condition-Handling-2001.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">http://www.</span><span class="ellipsis">nhplace.com/kent/Papers/Condit</span><span class="invisible">ion-Handling-2001.html</span></a></p><p>The second of those is mostly more advanced topics, as I recall. But the first is a discussion of the same issues as you find in Revision-18.txt, but in a way that is hopefully more abstract. That 1990 paper won a Best Paper award at the First European Conference on the Practical Application of Lisp, so I assume it was decently readable. It was just a dusting off of the paper I'd written in 1985 that no one had really cared about for 5 years. Since the paper was already written, I used the prep time for the conference to polish, and to whittle away anything about the paper that might not look like a "best paper", which apparently worked. :)</p><p>The 1985 paper is here, though I recommend just reading the 1990 version. I just often speak in hypertext and feel compelled to link things I talk about: </p><p><a href="https://dspace.mit.edu/bitstream/handle/1721.1/41474/AI_WP_268.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">dspace.mit.edu/bitstream/handl</span><span class="invisible">e/1721.1/41474/AI_WP_268.pdf</span></a></p><p><a href="https://climatejustice.social/tags/lisp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>lisp</span></a> <a href="https://climatejustice.social/tags/CommonLisp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CommonLisp</span></a> <a href="https://climatejustice.social/tags/exceptions" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>exceptions</span></a> <a href="https://climatejustice.social/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> <a href="https://climatejustice.social/tags/ErrorSystem" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ErrorSystem</span></a> <a href="https://climatejustice.social/tags/ConditionSystem" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ConditionSystem</span></a> </p><p>cc <span class="h-card" translate="no"><a href="https://mastodon.sdf.org/@masso" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>masso</span></a></span></p>
Chuck Darwin<p>Election officials across the country have been inundated with 🔸dubious complaints about inaccurate voter rolls, 🔸which have wasted government resources and sapped taxpayer money spent reviewing lists of registered voters that officials say are already carefully maintained, a CNN investigation has found.</p><p>One of the main drivers of the fruitless challenges is a conservative Texas-based nonprofit group called ♦️True the Vote, ♦️an election-monitoring organization that 👉has long peddled debunked voter-fraud theories. <br>The group’s founder, <a href="https://c.im/tags/Catherine" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Catherine</span></a> <a href="https://c.im/tags/Engelbrecht" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Engelbrecht</span></a>, has called on followers to help "clean" voter rolls by using an app&nbsp;called <a href="https://c.im/tags/IV3" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>IV3</span></a> <br>that enables users to research voter data and submit voter-eligibility challenges to local election offices.</p><p>The&nbsp;activists say&nbsp;they are merely trying to help clean&nbsp;voter rolls to prevent fraud, <br>but&nbsp;their challenges have been riddled with <a href="https://c.im/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> and have at times included vulnerable groups, <br>such as people registered to&nbsp;vote&nbsp;at assisted-living facilities and homeless shelters, documents obtained by CNN show.<br><a href="https://www.cnn.com/2024/07/29/politics/voter-rolls-ballot-challenges-true-the-vote-elections/index.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cnn.com/2024/07/29/politics/vo</span><span class="invisible">ter-rolls-ballot-challenges-true-the-vote-elections/index.html</span></a></p>
NO NAME<p><a href="https://soapbox.hackdefendr.com/tags/SSH" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SSH</span></a> <a href="https://soapbox.hackdefendr.com/tags/Errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Errors</span></a> for <a href="https://soapbox.hackdefendr.com/tags/InfoSec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>InfoSec</span></a> <a href="https://soapbox.hackdefendr.com/tags/Stoners" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Stoners</span></a></p><p>client_loop: ssh_packet_write_poll: Connection to 127.0.0.1 port 420: Broken pipe</p>
MadeInDex 📰🌎<p><span class="h-card" translate="no"><a href="https://mastodon.au/@Fury" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>Fury</span></a></span> <br>The <a href="https://mastodon.social/tags/twitter" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>twitter</span></a> &gt; <a href="https://mastodon.social/tags/x" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>x</span></a> <a href="https://mastodon.social/tags/domain" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>domain</span></a> change created so many <a href="https://mastodon.social/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> 😂</p>
Chuck Darwin<p>Arıkan's new solution was to create near-perfect channels from ordinary channels by a process he called “<a href="https://c.im/tags/channel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>channel</span></a> <a href="https://c.im/tags/polarization" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>polarization</span></a>.” </p><p>Noise would be transferred from one channel to a copy of the same channel to create a cleaner copy and a dirtier one. </p><p>After a recursive series of such steps, two sets of channels emerge, one set being extremely noisy, the other being almost noise-free. </p><p>The channels that are scrubbed of noise, in theory, can attain the Shannon limit. </p><p>He dubbed his solution <a href="https://c.im/tags/polar" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>polar</span></a> <a href="https://c.im/tags/codes" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>codes</span></a>. <br>It's as if the noise was banished to the North Pole, allowing for pristine communications at the South Pole.</p><p>After this discovery, Arıkan spent two more years refining the details. <br>He had read that before Shannon released his famous paper on information theory, his supervisor at Bell Labs would pop by and ask if the researcher had anything new. <br>“Shannon never mentioned information theory,” says Arıkan with a laugh. <br>“He kept his work undercover. He didn't disclose it.” </p><p>That was also Arıkan's MO. “I had the luxury of knowing that no other person in the world was working on this problem,” Arıkan says, “because it was not a fashionable subject.”</p><p>In 2008, three years after his eureka moment, Arıkan finally presented his work. </p><p>He had understood its importance all along. Over the years, whenever he traveled, he would leave his unpublished manuscript in two envelopes addressed to “top colleagues whom I trusted,” with the order to mail them “if I don't come back.” </p><p>In 2009 he published his definitive paper in the field's top journal, IEEE Transactions on Information Theory. </p><p>It didn't exactly make him a household name, but within the small community of information theorists, polar codes were a sensation. </p><p>Arıkan traveled to the US to give a series of lectures. (You can see them on YouTube; they are not for the mathematically fainthearted. The students look a bit bored.)</p><p>Arıkan was justifiably proud of his accomplishment, but he didn't think of polar codes as something with practical value. </p><p>It was a theoretical solution that, even if implemented, seemed unlikely to rival the error-correction codes already in place. </p><p>He didn't even bother to get a patent.</p><p> <a href="https://c.im/tags/channel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>channel</span></a> <a href="https://c.im/tags/capacity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>capacity</span></a> <a href="https://c.im/tags/Shannon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Shannon</span></a> <a href="https://c.im/tags/limit" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>limit</span></a> <a href="https://c.im/tags/correcting" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>correcting</span></a> <a href="https://c.im/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> <a href="https://c.im/tags/Bilkent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Bilkent</span></a> <a href="https://c.im/tags/University" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>University</span></a> <a href="https://c.im/tags/eureka" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>eureka</span></a> <a href="https://c.im/tags/accurately" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accurately</span></a> <a href="https://c.im/tags/redundancy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>redundancy</span></a> <a href="https://c.im/tags/channel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>channel</span></a> <a href="https://c.im/tags/coding" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>coding</span></a> <a href="https://c.im/tags/problem" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>problem</span></a></p>
Chuck Darwin<p>Arıkan devoted the next year to learning about networks, but he never gave up on his passion for information science. </p><p>What gripped him most was solving a challenge that Shannon himself had spelled out in his 1948 paper: <br>how to transport accurate information at high speed while defeating the inevitable “noise”<br>—undesirable alterations of the message<br>—introduced in the process of moving all those bits. </p><p>The problem was known as <a href="https://c.im/tags/channel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>channel</span></a> <a href="https://c.im/tags/capacity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>capacity</span></a>. </p><p>According to Shannon, every communications channel had a kind of speed limit for transmitting information reliably. </p><p>This as-yet-unattained theoretical boundary was referred to as the <a href="https://c.im/tags/Shannon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Shannon</span></a> <a href="https://c.im/tags/limit" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>limit</span></a>.</p><p>Gallager had wrestled with the Shannon limit early in his career, and he got close. His much celebrated theoretical approach was something he called low-density parity-check codes, or LDPC, which were, in simplest terms, a high-speed method of <a href="https://c.im/tags/correcting" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>correcting</span></a> <a href="https://c.im/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> on the fly. </p><p>While the mathematics of LDPC were innovative, Gallager understood at the time that it wasn't commercially viable. </p><p>“It was just too complicated for the cost of the logical operations that were needed,” Gallager says now. </p><p>Gallager and others at MIT figured that they had gotten as close to the Shannon limit as one could get, and he moved on. </p><p>At MIT in the 1980s, the excitement about information theory had waned.<br>But not for Arıkan. </p><p>He wanted to solve the problem that stood in the way of reaching the Shannon limit. </p><p>Even as he pursued his thesis on the networking problem that Gallager had pointed him to, he seized on a piece that included error correction. </p><p>“When you do error-correction coding, you are in Shannon theory,” he says.</p><p>Arıkan finished his doctoral thesis in 1986, and after a brief stint at the University of Illinois he returned to Turkey to join the country's first private, nonprofit research institution, <a href="https://c.im/tags/Bilkent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Bilkent</span></a> <a href="https://c.im/tags/University" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>University</span></a>, located on the outskirts of Ankara. </p><p>Arıkan helped establish its engineering school. He taught classes. He published papers. </p><p>But Bilkent also allowed him to pursue his potentially fruitless battle with the Shannon limit. </p><p>“The best people are in the US, but why aren't they working for 10 years, 20 years on the same problem?” he said. <br>“Because they wouldn't be able to get tenure; they wouldn't be able to get research funding.” </p><p>Rather than advancing his field in tiny increments, he went on a monumental quest. It would be his work for the next 20 years.</p><p>In December 2005 he had a kind of <a href="https://c.im/tags/eureka" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>eureka</span></a> moment. <br>Spurred by a question posed in a three-page dispatch written in 1965 by a Russian information scientist, Arıkan reframed the problem for himself. </p><p>“The key to discoveries is to look at those places where there is still a paradox,” Arıkan says. </p><p>“It's like the tip of an iceberg. If there is a point of dissatisfaction, take a closer look at it. You are likely to find a treasure trove underneath.”</p><p>Arıkan's goal was to transmit messages accurately over a noisy channel at the fastest possible speed. </p><p>The key word is <a href="https://c.im/tags/accurately" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accurately</span></a>. If you don't care about accuracy, you can send messages unfettered. </p><p>But if you want the recipient to get the same data that you sent, you have to insert some <a href="https://c.im/tags/redundancy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>redundancy</span></a> into the message. <br>That gives the recipient a way to cross-check the message to make sure it's what you sent. </p><p>Inevitably, that extra cross-checking slows things down. <br>This is known as the <a href="https://c.im/tags/channel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>channel</span></a> <a href="https://c.im/tags/coding" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>coding</span></a> <a href="https://c.im/tags/problem" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>problem</span></a>. </p><p>The greater the amount of noise, the more added redundancy is needed to protect the message. </p><p>And the more redundancy you add, the slower the rate of transmission becomes. </p><p>The coding problem tries to defeat that trade-off and find ways to achieve reliable transmission of information at the fastest possible rate. </p><p>The optimum rate would be the Shannon limit: channel coding nirvana.</p>
Chuck Darwin<p>The authors review challenges arising in <a href="https://c.im/tags/malpractice" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>malpractice</span></a> <a href="https://c.im/tags/litigation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>litigation</span></a> related to <a href="https://c.im/tags/software" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>software</span></a> <a href="https://c.im/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> to inform <a href="https://c.im/tags/health" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>health</span></a> <a href="https://c.im/tags/care" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>care</span></a> organizations and physicians about <a href="https://c.im/tags/liability" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>liability</span></a> <a href="https://c.im/tags/risk" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>risk</span></a> from <a href="https://c.im/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AI</span></a> adoption and about strategies to <a href="https://c.im/tags/mitigate" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mitigate</span></a> risk.</p><p><a href="https://www.nejm.org/doi/full/10.1056/NEJMhle2308901" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nejm.org/doi/full/10.1056/NEJM</span><span class="invisible">hle2308901</span></a></p>
Matt Willemsen<p>Analyzing Phantom Spectra<br>Katarzyna Tych wants to normalize failure as part of the scientific process.<br><a href="https://www.the-scientist.com/magazine-issue/analyzing-phantom-spectra-71538" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">the-scientist.com/magazine-iss</span><span class="invisible">ue/analyzing-phantom-spectra-71538</span></a> <a href="https://mastodon.social/tags/scientific" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>scientific</span></a> <a href="https://mastodon.social/tags/process" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>process</span></a> <a href="https://mastodon.social/tags/failure" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>failure</span></a> <a href="https://mastodon.social/tags/normalizing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>normalizing</span></a> <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mastodon.social/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> <a href="https://mastodon.social/tags/data" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>data</span></a></p>
Jason Mobarak<p>#️⃣🤬 💻 ⚠️ </p><p>Wonderful and comprehensive change log from my new automated door lock.</p><p><a href="https://hachyderm.io/tags/InternetOfShit" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>InternetOfShit</span></a> <a href="https://hachyderm.io/tags/Errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Errors</span></a> <a href="https://hachyderm.io/tags/WtfComputer" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WtfComputer</span></a> <a href="https://hachyderm.io/tags/EverythingIsTerrible" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EverythingIsTerrible</span></a> <a href="https://hachyderm.io/tags/BehindTheFacade" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BehindTheFacade</span></a> <a href="https://hachyderm.io/tags/ErrorsInTheWild" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ErrorsInTheWild</span></a> <a href="https://hachyderm.io/tags/LolWtfCompute" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LolWtfCompute</span></a> <a href="https://hachyderm.io/tags/BleepingComputer" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BleepingComputer</span></a> <a href="https://hachyderm.io/tags/ToErrIsComputer" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ToErrIsComputer</span></a></p>
Auscandoc<p>Mistakes in Canadian hospitals on the rise amid nursing shortage | CTV News <a href="https://www.ctvnews.ca/health/an-embarrassment-to-the-health-care-system-nurses-reveal-issues-they-see-on-the-job-1.6607334" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">ctvnews.ca/health/an-embarrass</span><span class="invisible">ment-to-the-health-care-system-nurses-reveal-issues-they-see-on-the-job-1.6607334</span></a> “<a href="https://med-mastodon.com/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>errors</span></a> are growing in <a href="https://med-mastodon.com/tags/CanadianHospitals" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CanadianHospitals</span></a>, as one in 17 hospitalizations from March 2022 to March 2023 involved a patient experiencing harm,</p><p>The report for the first time provided data showing that hospitals relied heavily on overtime and agency staff to provide patient care, with the measured harms linked closely to <a href="https://med-mastodon.com/tags/StaffingLevels" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>StaffingLevels</span></a>.” Via <span class="h-card" translate="no"><a href="https://mstdn.ca/@jvipondmd" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>jvipondmd</span></a></span></p>
Teri Radichel<p>Troubleshooting the MFA in Lambda— Local Testing and Lambda Do Not Match<br>~~<br>ACM.327 Resolved some issues, others could not due to misleading error messages and mismatched environments<br>~~<br><a href="https://infosec.exchange/tags/Lambda" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Lambda</span></a> <a href="https://infosec.exchange/tags/AssumeRole" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AssumeRole</span></a> <a href="https://infosec.exchange/tags/MFA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MFA</span></a> <a href="https://infosec.exchange/tags/Errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Errors</span></a> <a href="https://infosec.exchange/tags/Environments" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Environments</span></a></p><p><a href="https://medium.com/cloud-security/troubleshooting-the-mfa-in-lambda-local-testing-and-lambda-do-not-match-c48ed9bf643d" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">medium.com/cloud-security/trou</span><span class="invisible">bleshooting-the-mfa-in-lambda-local-testing-and-lambda-do-not-match-c48ed9bf643d</span></a></p>