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  • Oct 07 09:15
  • Sep 22 05:39
    stefanv commented #300
  • Sep 22 05:38
    stefanv closed #300
  • Sep 21 11:45
    arnabbiswas1 commented #300
  • Sep 08 05:30
    stefanv commented #300
  • Aug 27 07:36
    arnabbiswas1 commented #300
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  • Aug 27 04:58
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  • Aug 26 18:08
    stefanv commented #300
  • Aug 26 18:08
    stefanv commented #300
  • Aug 26 18:02
    stefanv commented #300
  • Aug 26 18:02
    stefanv commented #300
  • Aug 26 18:01
    stefanv commented #300
  • Aug 26 14:48
    arnabbiswas1 opened #300
  • Jul 22 18:43
    stefanv commented #299
  • Jul 22 18:43
    stefanv commented #299
  • Jul 22 17:50
    stefanv commented #299
  • Jul 22 17:22
    NeuroForLunch closed #299
  • Jul 22 17:22
    NeuroForLunch commented #299
  • Jul 21 18:35

    stefanv on master

    Inline license link (compare)

Brett Naul
@bnaul
I fixed that ~10 minutes ago
Ari Crellin-Quick
@acrellin
hahaha, really?
ok, I'll try again
Brett Naul
@bnaul
#agiledevelopment
Ari Crellin-Quick
@acrellin
no joke
you're pushing to master?
Brett Naul
@bnaul
yeah. cesium_web is chaos right now
it just became too annoying to keep working on a branch of stefan's repo
so cesium-ml/cesium is stable but cesium-ml/cesium_web is wild west until I get a green check
and then I'll go back to "pull requests" or whatever they're called
it's been so long I can't quite remember
Ari Crellin-Quick
@acrellin
But cesium --db-init is just using the library...
lol
Brett Naul
@bnaul
no
library doesn't know about the db
Ari Crellin-Quick
@acrellin
got it working
Brett Naul
@bnaul
cool...question, what version of rethinkdb (the python package) do you have?
I just upgraded to 2.3.0 and it's not working anymore
downgrading to 2.2.0.post5 is fine
ah I guess python rethinkdb and rethinkdb have to be the same version...
Brett Naul
@bnaul
Brett Naul
@bnaul
@acrellin https://travis-ci.org/cesium-ml/cesium_web Travis is happy now, officially ending wild west mode for cesium_web.
Maximilian Christ
@MaxBenChrist

Hi there.

Interesting project!

I am the maintainer of tsfresh (https://github.com/blue-yonder/tsfresh). We extract features from time series. I saw your list of features, most of them are already covered by tsfresh. Maybe it makes sense to substitute your feature extraction module by tsfresh so you could focus on the platform?

We already spent a lot of time on getting the feature extraction fast and well tested. Maybe you can profit from our efforts.
Stefan van der Walt
@stefanv
@MaxBenChrist Do you operate on irregularly sampled time series?
Maximilian Christ
@MaxBenChrist
Hi @stefanv, Our feature calculators just take any list as input. We do not use the index so far. So it is possible to pass irregularly sampled time series into tsfresh. For some features this is fine (e.g. max or mean value), for others, such as fft coefficients this does not make sense. So we implicitely assume that the time series are uniformly sampled
Stefan van der Walt
@stefanv
@MaxBenChrist That is the whole purpose of Cesium---to handle irregularly sampled time series.
@MaxBenChrist That is why we use Lomb Scargle, calculate histogram features, etc.
Maximilian Christ
@MaxBenChrist
Ah okay!
Maybe you can add that to your description.
Stefan van der Walt
@stefanv
We mainly implemented: Joseph W Richards, Dan L Starr, Adam A Miller, Joshua S Bloom, Nathaniel R Butler, Henrik Brink, and Arien Crellin-
Quick. Construction of a calibrated probabilistic classification catalog: Application to 50k variable sources in the all-sky automated survey. The Astrophysical Journal
Supplement Series, 203(2):32, 20
@MaxBenChrist Good point, I'll update the website and the readme!
Maximilian Christ
@MaxBenChrist
ok. If you are interested in also using some of the feature calculators from tsfresh, we can help you set it up. maybe some of our features are also of interest for you
tsfresh is more of a general purpose library. it can be used for financial or industrial time series
and if I get you right, cesium-ml targets astrophysicists=?
Stefan van der Walt
@stefanv
@MaxBenChrist Do you happen to have a list of features somewhere?
@MaxBenChrist Yes, the library originated from astronomy, but of course the features are generally applicable for any type of classification.
@MaxBenChrist Here's our list, for comparison: http://cesium-ml.org/docs/feature_table.html
Maximilian Christ
@MaxBenChrist
good point. we need something like this as well
It is a little verbose
basically all features are in the tsfresh.feature_extraction.feature_calculators submodule
Stefan van der Walt
@stefanv
Thanks, that's helpful.
Maximilian Christ
@MaxBenChrist
now we have a list
Stefan van der Walt
@stefanv
@MaxBenChrist That looks great (sorry, you can see when last I checked in with Gitter!). There's a small parsing error on that page, but otherwise perfect!
Brigitta Sipőcz
@bsipocz
hi
I wonder whether you have any benchmarking done compared to other packages?
E.g. how does cesium LS compare to other package's?
xyz
@ashish-yadav1
how to add cesiumjs in winforms ? without webbrowser control