Custom ADAMS applications

For a long time, I have been mulling over on how to make it easier on building ADAMS applications. Most importantly, without having to write Maven configuration files and/or requiring compilation. The initial approach (on the ADAMS homepage) was to let the user select a number of modules and then generate a download with a complete Maven environment. However, this required that the user not only had Java installed, but also Maven. Not something your average data scientist would have readily available.

Enter bootstrapp, my just released Java library for bootstrapping Maven applications. With this library, you only have to supply the Maven artifacts that should make up the application. It will also generate simple start-up scripts for launching the application (Linux/Mac/Windows).

Using this generic approach under the hood, I put together a similar library for ADAMS, instant-adams. This makes it easy to put together your own, custom applications now, with only those modules and libraries that you really need.

The following command-line generates an application using the ADAMS modules adams-weka, adams-groovy and adams-excel, plus the kfGroovy Weka package:

java -jar instant-adams-0.0.1-spring-boot.jar \
  -M adams-weka,adams-groovy,adams-excel \
  -V 20.2.0-SNAPSHOT \
  -d \
  -o ./out \
  -v -Xmx1g

In terms of ADAMS version, you can either use the ones from the daily builds (Y.M.x-SNAPSHOT, Y=2-digit year, M=month, x=patch level, usually 0) or ones from releases (e.g., 20.1.1). Be aware, only the releases are kept indefinitely, daily builds are only available for a short number of days (or number of builds).

The above command-line generates scripts which start up ADAMS with 1GB of heap size (-v -Xmx1g).

Please note, since all ADAMS artifacts are managed by one of our inhouse servers and are not available from Maven Central, the library downloads a custom Maven configuration file behind the scenes to download these artifacts through our server instead. If necessary, This can be changed by pointing to a custom Maven user settings file using the -u/--maven_user_settings option.

Feedback welcome!

Debug view in side panel

The Flow editor now displays the debug view as a side panel rather than in a separate frame, which makes it less confusing when debugging several flows at the same time. ;-)


Updates 2020/01/28

Minor update post before the 20.1.1 bugfix release (which includes these changes)...


  • The enum editor in the GenericObjectEditor now allows entering multiple values as text.

  • adams-addons-all: The static class discovery now works properly.

  • adams-weka and adams-weka-lts: Re-enabled the residual plot plugins in the Weka Investigator.

  • adams-imaging: The SelectObjects image plugin (used for annotating images) now rejects selected objects that have either width or height equal to zero (which can occur easily when using a stylus).


  • Object editor: added a button with drop-down menu to the PropertySheet panel for quick access to variable actions, rather than right-clicking on label; also functions as indicator whether variable is attached by changing color.

  • adams-tensorflow: switched from wai.tfrecords to wai.annotations library for generating TFRecords.

  • adams-weka: upgraded Weka to 3.9.4-fork-0.0.1

  • adams-weka and adams-weka-lts: The split action in the Weka Investigator has been generalized and now allows the use of any split generator available.


  • adams-spectral-2dim-core: The ArrayToSpectrum conversion converts a float array of amplitudes back into a Spectrum object.

  • adams-weka and adams-weka-lts: Added the Discard predictions menu item to the result history of the Classify tab in the Weka Investigator.