<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: quadrature</title><link>https://news.ycombinator.com/user?id=quadrature</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Thu, 09 Apr 2026 06:45:18 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=quadrature" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by quadrature in "LoGeR – 3D reconstruction from extremely long videos (DeepMind, UC Berkeley)"]]></title><description><![CDATA[
<p>In a traditional SLAM pipeline you do periodically fix drift by detecting when you've visited an area that you've mapped before this lets you align your sub maps so they are globally consistent.<p>In the areas you have visited previously you have two estimates of your position one from your frame-to-frame estimates and another from the map you built of the area the first time. You can then solve an optimization problem to bring those two estimates closer together.<p>In order to find out if you've already visited an area you store a description of the locations in a DB and search through them. The paper says they use a compressed representation of the "maps" and use test time training to optimize the global consistency between their sub maps.</p>
]]></description><pubDate>Tue, 10 Mar 2026 17:10:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=47326059</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=47326059</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47326059</guid></item><item><title><![CDATA[New comment by quadrature in "Billing can be bypassed using a combo of subagents with an agent definition"]]></title><description><![CDATA[
<p>Sure but the exploit here isn’t prompt injection, it is an edge case in their billing that isn’t attributing agent calls correctly.</p>
]]></description><pubDate>Sun, 08 Feb 2026 17:46:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=46936666</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46936666</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46936666</guid></item><item><title><![CDATA[New comment by quadrature in "Tesla’s autonomous vehicles are crashing at a rate much higher tha human drivers"]]></title><description><![CDATA[
<p>Thats a completely different scenario than fully autonomous driving.</p>
]]></description><pubDate>Fri, 30 Jan 2026 16:01:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=46825996</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46825996</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46825996</guid></item><item><title><![CDATA[New comment by quadrature in "Claude Code daily benchmarks for degradation tracking"]]></title><description><![CDATA[
<p>LLMs sample the next token from a conditional probability distribution, the hope is that dumb sequences are less probable but they will just happen naturally.</p>
]]></description><pubDate>Thu, 29 Jan 2026 17:40:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=46813537</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46813537</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46813537</guid></item><item><title><![CDATA[New comment by quadrature in ""Anyone else out there vibe circuit-building?""]]></title><description><![CDATA[
<p>Had this same experience back when I first learned to program a PIC microcontroller. You really shouldn't be driving LEDs directly off IO pins anyways. I think the digitalness of IO pins also lends itself to not thinking about the underlying circuitry and coming at it from a software lens.</p>
]]></description><pubDate>Mon, 19 Jan 2026 19:55:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=46683667</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46683667</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46683667</guid></item><item><title><![CDATA[New comment by quadrature in "How much of my observability data is waste?"]]></title><description><![CDATA[
<p>theres more information here <a href="https://docs.usetero.com/introduction/how-tero-works" rel="nofollow">https://docs.usetero.com/introduction/how-tero-works</a>
the link in the article is broken.<p>They determine what events/fields are not used and then add filters to your observability provider so you dont pay to ingest them.</p>
]]></description><pubDate>Wed, 14 Jan 2026 18:08:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=46619770</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46619770</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46619770</guid></item><item><title><![CDATA[New comment by quadrature in "Show HN: Mantic.sh – A structural code search engine for AI agents"]]></title><description><![CDATA[
<p>> So "stripe webhook" matches /services/stripe/webhook.handler.ts highly because the path literally contains both terms in logical positions<p>This sounds a lot like document search ontop of your specific attributes and you have a custom ranking algorithm.</p>
]]></description><pubDate>Tue, 06 Jan 2026 23:59:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=46520695</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46520695</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46520695</guid></item><item><title><![CDATA[New comment by quadrature in "I/O is no longer the bottleneck? (2022)"]]></title><description><![CDATA[
<p>For what it’s worth simdjson now has an on demand api that lets you skip over keys that you don’t need.</p>
]]></description><pubDate>Tue, 06 Jan 2026 15:14:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=46513295</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46513295</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46513295</guid></item><item><title><![CDATA[New comment by quadrature in "Revisiting the original Roomba and its simple architecture"]]></title><description><![CDATA[
<p>> but I'd suggest doing some Deep Researches on the topic to get you a good lay of the land<p>thanks for the resources !. I've been trying to get a wide view by looking at different algorithms, but I was curious what was actually used in production systems especially for consumer products.<p>RTABMAP and Cartographer came up in my searches, will definitely give these a closer look to understand how they work.<p>Right now im starting off with filter based approaches like Particle filter and Kalman filter, but i'd also like to understand how the graph based approaches work.</p>
]]></description><pubDate>Mon, 05 Jan 2026 18:11:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=46502423</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46502423</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46502423</guid></item><item><title><![CDATA[New comment by quadrature in "Revisiting the original Roomba and its simple architecture"]]></title><description><![CDATA[
<p>Slightly offtopic but i feel like someone around here might be able to help. I've been learning how to do SLAM with LIDAR data and I was curious what algorithms robot vacuums use. I'm currently implementing a particle filter and will also try out EKF.</p>
]]></description><pubDate>Mon, 05 Jan 2026 17:30:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=46501847</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46501847</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46501847</guid></item><item><title><![CDATA[New comment by quadrature in "Ask HN: What Are You Working On? (December 2025)"]]></title><description><![CDATA[
<p>I’m building a planner that automatically plans employee shift schedules based on their availabilities and roles.<p>There’s many different solutions out there but I’m carving out a niche where we deal with complex shift assignment problems.<p>For example one of our customers has specific union rules that need to be followed when assigning work and we ensure that they are compliant.<p>Our backend relies on an MIP solver as well as heuristic search to refine plans.</p>
]]></description><pubDate>Mon, 15 Dec 2025 15:38:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=46275868</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=46275868</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46275868</guid></item><item><title><![CDATA[New comment by quadrature in "PlanetScale Offering $5 Databases"]]></title><description><![CDATA[
<p>What does the durability story look like for this single node offering ?.</p>
]]></description><pubDate>Thu, 30 Oct 2025 21:46:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=45765769</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=45765769</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45765769</guid></item><item><title><![CDATA[New comment by quadrature in "Optimizing writes to OLAP using buffers (ClickHouse, Redpanda, MooseStack)"]]></title><description><![CDATA[
<p>There are a few realtime analytic DBs that let you query the in memory streaming buffer. That lets you have the best of both worlds but comes at the risk of inconsistency because you’re querying data that isn’t durable.</p>
]]></description><pubDate>Mon, 20 Oct 2025 17:57:16 +0000</pubDate><link>https://news.ycombinator.com/item?id=45646980</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=45646980</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45646980</guid></item><item><title><![CDATA[New comment by quadrature in "Microsoft CTO says he wants to swap most AMD and Nvidia GPUs for homemade chips"]]></title><description><![CDATA[
<p>I'm not very well versed, but i believe that training requires more memory to store intermediate computations so that you can calculate gradients for each layer.</p>
]]></description><pubDate>Fri, 03 Oct 2025 16:08:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=45464534</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=45464534</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45464534</guid></item><item><title><![CDATA[New comment by quadrature in "Microsoft CTO says he wants to swap most AMD and Nvidia GPUs for homemade chips"]]></title><description><![CDATA[
<p>Not suprising that the hyperscalers will make this decision for inference and maybe even a large chunk of training. I wonder if it will spur nvidia to work on an inference only accelerator.</p>
]]></description><pubDate>Fri, 03 Oct 2025 15:01:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=45463764</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=45463764</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45463764</guid></item><item><title><![CDATA[New comment by quadrature in "Llama Fund: Crowdfund AI Models"]]></title><description><![CDATA[
<p>I really like the idea of crowd funding research or the opposite public funding of citizen science.<p>It would be interesting to also have a space where the community could propose research directions.</p>
]]></description><pubDate>Mon, 25 Aug 2025 21:17:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=45019144</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=45019144</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45019144</guid></item><item><title><![CDATA[New comment by quadrature in "Gemini 2.5 Deep Think"]]></title><description><![CDATA[
<p>Is the problem mainly with tool use ? and are you using it through AI studio or through the API ?.<p>I've found that it hallucinates tool use for tools that aren't available and then gets very confident about the results.</p>
]]></description><pubDate>Fri, 01 Aug 2025 18:56:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=44760911</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=44760911</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44760911</guid></item><item><title><![CDATA[New comment by quadrature in "Launch HN: Vassar Robotics (YC X25) – $219 robot arm that learns new skills"]]></title><description><![CDATA[
<p>I'm curious about how the perception works, how do you find correspondences between the arm camera and the stationary camera ?</p>
]]></description><pubDate>Tue, 10 Jun 2025 21:43:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=44241799</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=44241799</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44241799</guid></item><item><title><![CDATA[New comment by quadrature in "Ask HN: What are you working on? (May 2025)"]]></title><description><![CDATA[
<p>Is mill ready to be used in production ?</p>
]]></description><pubDate>Sun, 25 May 2025 22:07:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=44091650</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=44091650</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44091650</guid></item><item><title><![CDATA[New comment by quadrature in "John Carmack talk at Upper Bound 2025"]]></title><description><![CDATA[
<p>Do you have an X account, if you're not logged in you'll only see the first post in the thread.</p>
]]></description><pubDate>Fri, 23 May 2025 14:49:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=44073417</link><dc:creator>quadrature</dc:creator><comments>https://news.ycombinator.com/item?id=44073417</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44073417</guid></item></channel></rss>