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herrherr

1,125 karma · joined June 21, 2009

email -> c _at_ herrbuerger.com
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herrherr··on The Anatomy of SaaS Pricing Strategy (2017) [pdf]
As your products and services are targeted towards bigger clients, do you have any advice for smaller companies on who to talk to regarding pricing?
herrherr··on Voxel art
Any hints on where to start?
herrherr··on Parallel Locality Sensitive Hashing
First of all, thanks for open sourcing lmdb :)

The biggest problem currently is actually degrading performance, although I'm almost 100% sure that this isn't caused by lmdb itself, but rather by the bindings I've tried.

In the end, doing it directly in C is probably the only thing that will actually work.

herrherr··on Parallel Locality Sensitive Hashing
Actually I'm also using lmdb (together with Python/numpy) :) Added an email address to my profile, would be happy to exchange some experiences.
herrherr··on Parallel Locality Sensitive Hashing
I've been trying for weeks now to get a system running that can handle larger than RAM datasets and returns queries in an acceptable time. It's running ok now but far from optimal (size of DB is ~100 GB and it contains a few hundred million entries).

Does anyone here have experience with any implementations (such as likelike, lshkit, etc.) and can recommend something that can handle larger sets? All the implementations I have found were either not maintained, old, not running or not suitable for production use.

Will definitely take a look at the paper but unfortunately it's always a very long way from here to an actual implementation (there is no code published as far as I could see).

herrherr··on Ask HN: Your favorite YouTube channels?
Currently without a doubt: https://www.youtube.com/user/mathematicalmonk

An extensive series about machine learning (100+ videos).

herrherr··on Detecting duplicate images with Python
I think you are on the right track there.

The thing is though, you won't have difficulties finding papers on those topics. However, you will probably not have any luck finding many concrete and practical implementations that you could look at.

So it's a far way from reading the papers to having something working.

If you find something, please let me know.

herrherr··on Detecting duplicate images with Python
We are currently using perceptual hashes (e.g. phash.org) to do hundreds of thousands of image comparisons per day.

As mentioned in another comment, you really have to test different hashing algorithms to find one that suits your needs best. In general though, I think it is in most cases not necessary to develop an algorithm from scratch :)

For us, the much more challenging part was/is to develop a system that can find similar images quickly. If you are interested in things like that have a look at VP/MVP data structures (e.g. http://pnylab.com/pny/papers/vptree/vptree/, http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.7...).

herrherr··on Show HN: Introducting Qbox.io - Hosted ElasticSearch with Free Dev Tier
Per se the product looks interesting, but having all these new accounts praise it, looks a bit odd.
herrherr··on Tell HN: Steal my ideas
Shameless self-plug:

www.getmetricmail.com :D

herrherr··on Ask HN: Webapps you can't live without?
The really interesting part is actually to recognise how hard it is for a new app to enter my daily-use list. It's almost impossible. Some make it in there for a few days or weeks but will vanish quite soon.

Either I need the app for my daily work or it is a fire-and-forget service that I once signed up for and that doesn't require any active input from my site.

Anyway, here is my list:

- pivotaltracker.com

- github.com

- dropbox.com

- olark.com

- gmail.com

- google.com/analytics

- hipchat.com

herrherr··on Chrome 15 Is Now World’s Most Popular Browser (Version)
For comparison have a look at the getclicky stats: http://getclicky.com/marketshare/global/web-browsers/

They seem to be pretty close.

herrherr··on Ask HN: What has been your most profitable side/weekend project to date?
Indeed. Google Analytics allows you to create those reports. But apparently it's far too difficult for people who are not that tech-savvy.

As I said we currently have over 3000 users, so there seems to be some interest in such a solution :)

herrherr··on Ask HN: What has been your most profitable side/weekend project to date?
You can receive pdf attachments directly, so you don't have to click on the link. Nevertheless that's not what you're looking for, I guess ;)

We thought about putting the data directly into an email, but the crappy HTML/CSS support in the gazillion email clients, make this a pretty tough job.

herrherr··on Ask HN: What has been your most profitable side/weekend project to date?
That is actually possible.

The case here shows what happens when you offer too much features/resouces in the free plan.

The toughest part now is deciding if it makes sense to invest more time into it. But I guess that is a general problem for startups that haven't yet found product/market fit. You can't really know if you are miles or just an inch away from that fit.

herrherr··on Ask HN: What has been your most profitable side/weekend project to date?
getmetricmail.com creates simple Google Analytics reports and sends them to you as a PDF. Currently 3000 free users. A handfull pays, so it makes about $100 per month. A good example of Freemium gone wrong.
herrherr··on Museum of me - A museum made from your own facebook data
I'm wondering if they store all gathered information permanently. They don't give exact information on that matter.
herrherr··on Clojure on Heroku Cedar stack
It looks like Python is also working:

https://gist.github.com/866c79035a2d066a5850 (not mine)

herrherr··on Questions you should ask your interviewer
The question that made at least two recruiters sweat in my last interviews:

  "Why do you like to work for this company?"
I was quite surprised. One would assume, that they have a perfectly prepared answer for a question like that.
herrherr··on AppEngine 1.4.3 released: new file API, concurrent requests & more
I really hoped that they would release a full-text search for the datastore.

Guess I'll have to wait for that and use the improvised solution (http://billkatz.com/2009/6/Simple-Full-Text-Search-for-App-E...).

herrherr··on Free UK Google Magazine - Think Quarterly
http://goo.gl/w2USQ

File > Download Original

herrherr··on Google Launches a Quarterly Online Magazine
I searched the site for a 'Buy a print version' link until I realised that this is 'just' an online version.

The magazine would look wonderful on some heavy, high-gloss paper.

herrherr··on How to Track Highlighted Text on Your Site with Google Analytics
Perhaps you can give us an example on how to implement this. I would be really interested in it.
herrherr··on Show HN: Investy.com - Portfolio Analyzation Tool
My 0.02: Screenshots, Screenshots, Screenshots :)
herrherr··on Twitter Can Predict The Stock Market
Old discussion:

http://news.ycombinator.com/item?id=1803505

herrherr··on Waking up at 5am, my nearly 1 year review
Did you build that system yourself or is this a off-the-shelf solution?
herrherr··on The best Web Framework - what makes Lift different
Hm. Lift even works on Google App Engine. Pretty nice:

http://www.scala-lang.org/node/1826

That would take the pain out of deploying an app.

herrherr··on Wordpress frameworks that don't suck
Please don't forget that you can also flag comments. Simply click on the link of the parent and click flag.

Downvoting alone doesn't do the job.

herrherr··on Game Preview: Voxatron - voxel-based, destructible environment, 8bit soundtrack
If the author is reading this:

Add a signup form. It's not often the case that I want to be notified when a product becomes available, but this time I would love too.

herrherr··on How to build an 8x8x8 LED cube
Price for this one is $400. A lot more expensive than I thought.

http://www.seekway.com.cn/e/3d/a08/detail.htm

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