c_moscardi

Joined 15 years ago

Karma
72
Submissions
34
Member since
Jan 20
http://www.christianmoscardi.com/home.html

Currently working on making the US government work better and document digitization.

You can email me at [email protected] - always happy to talk!

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Recent submissions

Comment · 2 months ago
LADW saved me in undergrad, but I was pretty much exactly the target audience in an honors-level freshman math course:

"[per Treil, LADW is for] a student who, while not yet very familiar with abstract reasoning, is willing to study more rigorous mathematics than what is presented in a “cookbook style” calculus type course."

But yeah it's really attempting to introduce you to higher mathematics rather than get you comfortable doing linear algebra per se.

Comment · 2 months ago
Comment · 1 year ago
Riding in the family rail car like it’s 1895 (and you’re a robber baron)
Comment · 1 year ago
We chatted a few months back -- congrats on launch! Looks like a great UX.
Comment · 1 year ago
Amazing! GitHub actions to compute a giant skim matrix is an incredible hack.

I pretty regularly work with social science researchers who have a need for something like this... will keep it in mind. For a bit we thought of setting something like this up within the Census Bureau, in fact. I have some stories about routing engines from my time there...

Comment · 1 year ago
Worth noting that there already exists an ecosystem of these sorts of contracting firms (nava, skylight, truss I believe, forgetting even more) that, basically, pitch themselves as the antidote to beltway banditry

People from the federal civic tech nexus started them up over the past decade as they termed out of 18F, USDS, and PIF

Comment · 2 years ago
Came to post this — it’s the same underlying technology, just a lot more compute now.
Comment · 2 years ago
Hi HN! I've spent a couple of months fiddling with OCR and wanted to share some of my findings.

The approach I share here (fine-tuning recent deep learning models) is the first one that's gotten me anything resembling high-quality OCR on these particular noisy historical documents. OCRing these has been something of a white whale for me for several years (except, a white whale that I have spent comparatively little time on).

At this point I think I am reasonably competent in OCR, but no expert... Curious for your thoughts.

Comment · 2 years ago
Comment · 2 years ago
Comment · 2 years ago
Figures, too! Yeah you could write some logic essentially on top of a library like this, and tune based on optimizing for some notion of recall (grab more surrounding context) and precision (direct context around the word, e.g. only the paragraph or 5 surrounding table rows) for your specific application needs.

Using the models underlying a library like this, there's maybe room for fine-tuning as well if you have a set of documents with specific semantic boundaries that current approaches don't capture. (And you spend an hour drawing bounding boxes to make that happen).

Comment · 7 years ago
Funnily enough, this is another great tactic for getting emails returned (looping in someone with more leverage than you or asking them to follow up for you)!
Comment · 8 years ago
Comment · 8 years ago
Yep, my read too. The code he provides is definitely the Clopper-Pearson formula. [1]

This confused me as well, since I've always used the normal central-limit-based confidence interval for binary outcomes.

[1] https://en.wikipedia.org/wiki/Binomial_proportion_confidence...

(I am no expert in the analytic underpinnings of the beta distribution or precisely how it is the conjugate prior to the binomial -- or, rigorously speaking, what conjugate prior means -- but the formula here lines up with his formula :P )

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