I'm a bit confused as to how to install the dependencies I actually need.
I'm new to both Java and Flink, and I think I'm missing something minor here. I'm doing a basic exercise where I need the DenseVector
class, that supports basic mathematical operations.
I searched for flink
docs and found this class. So it's artefact id is org.apache.flink.ml.common.linalg.DenseVector
. This class supports operations such as dot product.
Now I go to the flinkml
tutorial page and it says I need the following dependency
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-ml-uber</artifactId>
<version>2.1.0</version>
</dependency>
When I install that however, the only DenseVector
I get installed is this one, which seems to be representing the same entity, but the API is very limited - it basically supports no mathematical operations.
My question is: I can't seem to find a way to install a dependency that would give me access to org.apache.flink.ml.common.linalg.DenseVector
. What maven dependency do I need to get that? I've checked a few packages at https://mvnrepository.com/, but could not find the one I need. What am I missing?
Thanks!
There are two different implementations because there was a major refactor with FlinkML 2.0.
You can install the dependency according to https://nightlies.apache.org/flink/flink-ml-docs-release-2.1/docs/try-flink-ml/build-your-own-project/. Then you can get access to those mathematical operations by using this class https://github.com/apache/flink-ml/blob/master/flink-ml-core/src/main/java/org/apache/flink/ml/linalg/BLAS.java .
Maybe we can use the answer provided by the owner and close this thread.