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max_likelihood

Re:Notes on Lagrange Interpolating Polynomials on Tuesday March 03, 2026 @01:21PM (#47236499)
Thank you for sharing. One thing I found confusing was the introduction of l_{i}'(x). I kept thinking this was short for \frac{d}{dx} l_{i}(x), but it's not the derivative!
Re:Bitcoin is over $100k on Wednesday December 04, 2024 @10:20PM (#42324542)
I wonder how much of the price action is due to debt funded purchases through MSTR and other leveraged ETFs (e.g. BITU, BITX)?
Re:Square Roots and Maxima on Saturday November 30, 2024 @12:51PM (#42282937)
Perhaps you are thinking of Order Statistics? https://en.wikipedia.org/wiki/Order_statistic
I've always thought the use of "Tensor" in the "TensorFlow" library is a misnomer. I'm not too familiar with ML/theory, is there a deeper geometric meaning to the multi-dimensional array of numbers we are multiplying or is "MatrixFlow" a more appropriate name?
Re:The Hearts of the Super Nintendo on Monday April 01, 2024 @05:32AM (#39892256)
I think the link to "nocash" is broken. It should go to: https://problemkaputt.de/fullsnes.htm#snestimingoscillators
Re:Show HN: I made a tool to compare Timezones on Friday January 05, 2024 @08:47PM (#38887513)
I was thinking it would be cool to add another slider for day of the year. That way you can see how the differences change as local timezones roll through their own daylight savings time or other adjustments. For example, right now Asuncion Paraguay is +3 hours ahead of Chicago U.S. but in April it will be only one hour ahead.
I believe they want to signal to the rest of the world that they are still a stable alternative for western nuclear fuel buyers. Uranium is the spice, and the spice must flow. Of course they also export coal, gas and oil too.
I think the chips were built with zero-spin silicon (ZS-Si) from Silex (SLX/SILXY): https://www.silex.com.au/silex-technology/silex-zs-si-produc...
Re:The animated elliptic curve on Sunday June 19, 2022 @01:09PM (#31801199)
Thanks for explaining and creating the gist! Makes sense now that everything (* / + -) needs to be done modulo 61.
Re:The animated elliptic curve on Sunday June 19, 2022 @01:06PM (#31801174)
That was definitely a typo. Thanks for your response!
Re:The animated elliptic curve on Thursday June 16, 2022 @10:28PM (#31773497)
Thank you so much for creating this! Under the Curve61 point addition example, I was trying to follow the formula for adding two points: P:(x1, y1) + Q(x2, y2) = R(x3=l^2-x1-x2, y3=l(x1-x3)-y1) where l=(y2-y1)/(x2-x1). I tried to use the example P:(5, 7) + 23P:(2, 24) = (226/9, 2888/7) != 24P:(59, 55) and was wondering where I've gone wrong? Appreciate your response!
Re:ScummVM 2.5 “Twenty years ago today” on Saturday October 09, 2021 @03:55PM (#28812700)
Much respect to the ScummVM team as they allowed me to play the original "Secret of Monkey Island" after it left my local library! Ironically, I no longer needed the "Dial a Pirate" code-wheel.
Re:Open Source Farming Robot on Friday June 25, 2021 @06:47AM (#27629102)
From what I can see, this just waters the plants? Is there any weed control (e.g. spraying with super-heated Clove oil)?
Re:Jack Ma's Bund Finance Summit Speech on Tuesday November 10, 2020 @09:42PM (#25054981)
I actually read the same thing just a short while ago: https://valueinvesting.substack.com/p/why-ant-financials-ipo.... The author states Ant would have operated by repackaging highly leveraged micro-loans in such a way that none of the risk would appear on anyone's balance sheet.
Re:Understanding Convolutional Neural Networks on Friday July 03, 2020 @04:23AM (#23722114)
I know very little about CNNs. But, I noticed the ReLu Activation step is Max(0,x) where x is the sum of the pixel intensities from each channel. In this example, it appears x > 0 (for all x) and so the activation step isn't really doing much?

EDIT: I'm wrong. x < 0 for some of the pixels. Specifically for the more red-ish channels.

The gentle gradients and transformations from black & white to color are charming. It made me think of the scene in Wizard of Oz where Dorothy steps into Technicolor.
Re:A Map of the Trees of London on Tuesday May 05, 2020 @10:19AM (#23080244)
Logistically speaking, I wonder what's the best way to create a tree map/database for my own town? Google maps will go a long way towards getting location. Is the rest just driving/walking around collecting data (species etc..) manually?
Just curious, what does it mean to say that they are reset everyday?
Re:All the current trees in Barcelona on Saturday February 29, 2020 @06:16PM (#22453908)
My father owned a tree service in the town I grew up in. We spent countless hours driving around town, looking at different trees and giving estimates for trimming and removal. I could imagine leveraging this data as almost a Zillow for trees.
It works on quite a few sites e.g. Financial Times, Bloomberg, Washington Post. But not on Wall Street Journal.
If you find it helpful, here's an Outline of the article: https://outline.com/uAUtV9
Currently I'm not using a tablet. But, I'm doing an M.S. in Actuarial Science. With > 90% of my notes being formulas, I would buy a tablet just for this feature :)
Just curious if there is any plan for the Mathpix OCR/engine to transcribe tablet notes in real-time to a LaTeX document? That would be the holy grail for me.
Re:A bad cup of tea and the birth of modern statistics on Friday September 06, 2019 @11:50PM (#20901683)
I was thinking the same thing! I think those would be her odds if she were permitted to go back and change her mind about which cups of tea had milk first. If she said the first 4 cups were milk first with some confidence, but on the fifth cup was absolutely certain it was milk first, she would have to go back and change a previous evaluation (because she knows there can be only 4). But because they were presented one at a time, and Bristol made her determination up front. It's basically a series of independent Bernoulli trials (i.e. Binomial distribution). So, assuming she had a 50% chance of guessing correctly, the probability would be (8 choose 4) * (1/2)^8.
I just wanted to say that I've used Hexopress in the past and really enjoyed it. Keep up the good work!
Re:Scientists capture MRI scans of single atoms on Monday July 01, 2019 @07:32PM (#20330762)
Just to clarify, the aluminum foil is for thermal insulation used for keeping the microscope warm?
Re:New Property of Light Discovered on Saturday June 29, 2019 @08:27AM (#20312184)
Unfortunately, I don’t know enough to intelligently comment on this. I was largely under the guidance of my professor. However, I can tell you that in my modeling I used the paraxial approximation and that the light was linearly polarized. It was my understanding that only circularly polarized light carried intrinsic angular momentum (https://en.wikipedia.org/wiki/Spin_angular_momentum_of_light...).

Also, I would agree with you that in a uniform electric field, a single E vector in isolation would appear to produce a torque on a point some distance away. But if the rest of the field is considered, the net torque at that point would be zero, right?

Re:New Property of Light Discovered on Saturday June 29, 2019 @07:53AM (#20312060)
Sorry, I misspoke about the angle of separation (it's actually 120 degrees) and did a poor job of describing the orientation. If you imagine a vector perpendicular to the sheet indicating the direction of travel, then these three vectors would intersect at a single point and lie along the surface of a cone. The angle between the axis of the cone and each vector, the azimuth, was 30 degrees.

https://i.ibb.co/VDgS8yr/3beam.png

Re:New Property of Light Discovered on Friday June 28, 2019 @09:55PM (#20310327)
I did a project during my undergraduate degree in physics which involved interfering three planar waves at 60 degrees from one another to create a hexagonal intensity pattern. The interesting thing was that at each of the 6 corners of the hexagon was a singularity (optical vortex) where the phase was undefined. At these points, the phase space was shaped like a spiral staircase (screw dislocation) and particles suspended there could actually be rotated. It was like an “optical wrench” if you will.

On a small scale, planar waves can be modeled like flat sheets of paper traveling through space without any angular momentum (no twisting motion). Yet when these sheets hit an object from multiple angles with the right timing, they can actually cause the object to twist.

If you want the quotes added, you're going to need to fill out a 27b-6 ;)

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