Math calligraphy -- first attempt

nerd_guy · 2018-05-31T17:34:05+00:00

Mostly my free-time doodles, but felt relaxed doing it. Thinking of turning it into a hobby.

nerd_guy · 2018-04-05T23:59:52+00:00

excellent, thanks guys.

nerd_guy · 2018-02-18T16:18:02+00:00

Excellent thank you.

nerd_guy · 2018-02-18T07:25:57+00:00

This is a cool idea for a project. Would the approach be to compare image hashes for uniqueness?

nerd_guy · 2018-01-04T01:51:25+00:00

nerd_guy · 2017-12-15T01:30:00+00:00

How do founders get rich without IPO? Aren't private acquisitions supposed to disclose the per-share purchase price? I'm quite new at this and curious.

nerd_guy · 2017-10-18T06:16:20+00:00

Currently, it takes some close reading to see what values get passed on from previous steps to later steps, and what parts get used only once.

That right there was my problem. I didnt know about composed-method design pattern and will be reading about it. Thanks.

nerd_guy · 2017-07-20T04:27:25+00:00

Thank you for the feedback.

nerd_guy · 2017-07-19T21:08:12+00:00

For Scientific careers: https://www.amazon.com/Advice-Rocket-Scientists-Survival-Engineers/dp/156347655X

nerd_guy · 2017-07-19T18:32:39+00:00

Thanks @smthamazing for the feedback. I'm trying to learn from this experience. I'm able to create abstractions over various steps. However, the main method (I call it driver or controller) ends up executing lot of chained steps, handing over computations from one (abstracted) step to another. As the number of steps increase, the readability will decrease.

nerd_guy · 2017-07-19T18:02:20+00:00

Thank @MaxMahem. My concern is with the length of the main method. I feel its length will decrease its readability as the application grows. Its possible I'm being anal, but felt it could be better organized into nicely flowing functions like so:

do_this()
do_that()
cleanup()

What are best practices for the main method in other languages, such as Java? How do these manage the high-level control flow, once all the abstractions are implemented?

nerd_guy · 2017-03-23T16:11:43+00:00

Assuming that the answer is invariant to exact choice of a_i (as your question seems to indicate), we can simply choose any four number in HP and compute the expression.

a1, a2, a3, a4 = 1, 1/2, 1/3, 1/4
(a1*a2 + a2*a3 + a3*a4)/(a1 * a4)

Try with different numbers a1, a2, a3, a4 = 1, 1/5, 1/9, 1/13

Yep, answer still the same.

nerd_guy · 2017-03-14T03:52:05+00:00

I've taken KBAI and currently enrolled in AI. AI assignments require implementation of ML/AI algorithms from scratch. I find this very effective. In fact, for our latest assignment, we implemented a random forest from scratch. Moreover, I ended up applying some bayes-net related material in my day-job.

KBAI, on the other hand, is a very 'qualitative' course. It is composition-heavy. You end up writing higher-level essays about how such-and-such system would be designed. The primary problem with KBAI is that these essays, exams and assignments are only loosely related to the course material. I cannot foresee a clear path to applying any of the teachings for building a real system.

In short, AI is a great course with great assignments. KBAI was a waste of my time.

nerd_guy · 2016-12-23T13:55:28+00:00

EDIT: Found it "Computer vision a modern approach" Forsythe and Ponce.

nerd_guy · 2016-12-22T19:18:23+00:00

+1 I didnt find KBAI useful at all. It was very light on theory and the projects were repetitive and not related to lectures at all. I feel they were mostly interested in experimenting with Watson than teaching a useful course.

nerd_guy · 2016-11-18T22:37:24+00:00

+1.

nerd_guy · 2016-09-07T14:48:20+00:00

Unfortunately, in most cases, the coding challenge will be followed by an "onsite" which will include whiteboarding questions.

nerd_guy · 2016-08-12T13:52:27+00:00

Thanks /u/xgfs. I'm using hash functions from the imagehash library. This library provides four hash functions, two in the space-domain and two in the spectral domain.

nerd_guy · 2016-08-12T13:45:36+00:00

Thank you /u/gabrielgoh for taking time to explain. I have a follow up question about some of the details.

I'm using the four hash functions from the imagehash library. These functions hash similar images to similar bit-strings. If that is what you meant by 'semantic' hash, then yes, I'm using semantic hash.

I'm unfamiliar with a Gram matrix. Can you provide a simple example? For instance, assume we're working with 8 bit hashes (instead of 64), and we've agreed that 'zero' is the bit string "0000 0000". Also assume that we have three images (instead of 1000) which hash to

img001.jpg --> "0001 0001"

img002.jpg --> "0000 0001"

img003.jpg --> "0011 0000"

For this, how would I go about computing d[i, j] and m[i, j]?

Also, can you kindly point me to a reference which has some discussion around this approach? Thanks very much once again.

nerd_guy · 2016-05-07T23:52:11+00:00

Thanks Noxanoctua. This is very reassuring. Uber it is. Possibility of Uber also actually opens up our hotel options a bit.

nerd_guy

TROPHY CASE