hi, what's the best interop lib in order to offer your kotlin lib to python users (jython/py4j)?

Is this the right place for discussing Kotlin Jupyter notebooks? I’m curious if there is a way to access a maven repo that requires authentication? I’m currently loading artifacts from

mavenLocal

with a notebook running on my desktop, although I was hoping to publish to a private GitHub Packages repo and pull this into a notebook running in the cloud.

@Ilya Muradyan did you come to any decision on publishing the Kotlin Kernel as a package? I am currently setting up automatic builds of my plugin that depends on the Kotlin kernel. I can just use the workaround I have been using before and grab the libraries from the Python package, but that is a bit inelegant.

@Maria Khalusova why not using transformers for that NLP task?

Is it possible to use kotlin-lets-plot without jcenter already or is the migration still in progress? The docs still seem to point to jcenter.

@Ilya Muradyan there is something weird going on with the maven package for the kernel that I managed to reduce to a simple PoC: I have one class that simply tries to embed the kernel:

import org.jetbrains.kotlinx.jupyter.IkotlinKt;
import java.io.*;


public class BugDemo {

    public static void main(String[] args) {
        IkotlinKt.embedKernel(
                new File(args[1]),
                null,
                null);
    }
}

a default gradle file as generated by IntelliJ for a new project that specifies the maven package as a dependency

plugins {
    id 'java'
}

group 'org.example'
version '1.0-SNAPSHOT'

repositories {
    jcenter()
    mavenCentral()
}

dependencies {
    implementation 'org.jetbrains.kotlinx:kotlin-jupyter-kernel:0.8.3.281'
}

Building then fails with:

gradle classes

> Task :compileJava FAILED
error: org.jetbrains.kotlinx.jupyter.libraries.ResolutionInfoProvider: class file for org.jetbrains.kotlinx.jupyter.libraries.ResolutionInfoProvider not found
/home/fmagin/gits/jupyter-gradle-test/src/main/java/BugDemo.java:5: error: cannot access ResolutionInfoProvider
public class BugDemo {
       ^
  class file for org.jetbrains.kotlinx.jupyter.libraries.ResolutionInfoProvider not found
1 error

FAILURE: Build failed with an exception.

I have no idea if this is a bug or if I am doing something wrong.

Just did a 1.0-SNAPSHOT release of some NLP tools I've thrown together 🎉 https://github.com/londogard/londogard-nlp-toolkit 🧵 for details

Hello! Is there a way to use kotlinx.coroutines with Kotlin Jupyter Kernel?

I want to read data from postgresql database into jupyter notebook. Is there any library for such a task in jupyter kotlin?

%use ???

anyone here using kotlin-numpy? I'm trying to port some python to kotlin, specifically

nr_expected_exponents = binom(m + n, n) // nr_expected_exponents: np.ndarray

but if I try

binomial(m + n, doubleArrayOf(n.toDouble())

then I get

Cannot run program "python" (in directory "/tmp/nativeKtNumPy2138897567746194273"): error=2, No such file or directory

java.io.IOException: Cannot run program "python" (in directory "/tmp/nativeKtNumPy2138897567746194273"): error=2, No such file or directory

Hi, I embedded the EChart library in Kotlin Jupyter and got it all working. Very nice overall experience, I can see Kotlin for interactive development really working out for many use-cases. But I noticed different behavior between a notebook and lab environment. If I use a notebook, I have to use the iframe solution, aka HTML(..., true) otherwise it won't work since the JavaScript library doesn't get initialized. And when using a Jupyter lab it is exactly the opposite, so I have to use the regular embedded HTML option HTML(..., false). 1. It there a way to auto detect in which environment my code is running (even in the Notebook API I couldn't find this function) so I can make these changes without bothering users 2. I didn't notice this difference in the past when using Python in notebooks and labs (but might have missed it). Is this a deliberate choice or enforced by the Jupyter platforms?

Getting "Error occurred during initialization of VM Could not reserve enough space for 2097152KB object heap"

A blogpost on Kotlin-Jupyter-Kernel 0.9 arived: https://blog.jetbrains.com/kotlin/2021/04/kotlin-kernel-for-jupyter-notebook-v0-9-0/

@Ilya Muradyan Is it possible to delegate rendering of an object to Jupyter? Use case: I have an

Any

object, and I want to render it inside my layout.

For those of view doing some computer vision on JVM - how would you go about using OpenCV - (I) get it from sources as in official documentation - (II) use bytedeco stuff - (III) something else (please specify)? Thanks

Anyone else would share his/her experience running CV applications on JVM? (this is not about android) thanks

Have been playing around with new notebook API, and nice improvement over the JSON file. What I'm now trying is to get DISPLAY functionality to work using the API. So for example how to translate the following code snippet using the new API (DISPLAY doesn't seem to be exposed by the new API):

for (asset in assets) {

val html = CandlestickChart(asset).render()

DISPLAY(HTML(html))

}

I noticed the passed Notebook instance should be able to help with this (like currentCell etc), but cannot figure out last part of puzzle? Any hints?

Hi, I would like to recieve opinions on Kotlin for data science and scientific research. I'm have been using Python but know I want to invest some time in learning another language with tools good performance. So, I started to learn Scala and have been enjoying, but I saw some articles showing the tools developed for Kotlin in respect to libraries for deep learning and differential programming. #datascience #science

@zaleslaw do you think it is possible to build DCGANs with KotlinDL? They have stuff like LeaklyReLU, BatchNorm2d for example?

Do you know any time series manipulation and modelling libraries for Kotlin?

Today I want to share with you my presentation about an upcoming 0.2 KotlinDL release (0.2-alpha-1 artifact is available now on Maven Central). Currently, the KotlinDL framework can boast that this is the only way to construct and train complex neural networks on JVM, such as VGG, ResNet, or MobileNet. There is also support for transfer learning for the popular models trained in Keras (or available in Keras. applications). For image preprocessing, several functions are available that allow you to avoid complex and routine work on the JVM. Code from the demo: https://github.com/zaleslaw/KotlinDL-Demo/tree/demo-1 Library: https://github.com/JetBrains/KotlinDL P.S. Support our project with a star on Github!

How would I go ahead and display an image in Kotlin Jupyter Notebook? Using BoofCV which can output BufferedImage, floatArray/intArray or a swing GUI (doesnt work because no X11 it says on datalore)

Julia reported release of their own DataFrame: https://dataframes.juliadata.org/stable/. Right now they are probably the main competition to emerging Kotlin for Data ecosystem, so we whould study it. 🧵

Is there a way to print information about a method/object/class in jupyter? Like documentation or inputs? This is possible in Python by using

??

which is really nice

Is there a way to have interactive components like a Slider in Jupyter for Kotlin? 😄

For some time I was thinking about doing a video-tutorial on how to do your own jupyter integration including front-end and back-end module. Please add some kind of reaction if you would like that.

I'm using my own own integration with Jupyter and in general things work great. But since I moved my artifacts to a local maven (instead of referring directly to a jar file), my plugin fails to pickup the latest versions. Is there perhaps anywhere some caching of artifacts at the Kotlin kernel level that could explain this behavior? BTW I don't update the artifact versionId since this is a SNAPSHOT.

Hey guys! As https://github.com/thomasnield/kotlin-statistics is no longer maintained, I forked it to https://github.com/LeoColman/Kaucasus, and I intend to keep it updated. Check it out and tell me what you think! How can we keep improving this wonderful project?

Does anyone know a way to use SciView in a Kotlin Intellij Idea, like a Jupyter/Datalore with Kotlin kernel but ran on Idea? I was hoping to use Let's Plot locally from the IDE (no notebook).