Questions tagged [java]
Java (not to be confused with JavaScript) is a general-purpose object-oriented programming language designed to be used in conjunction with the Java Virtual Machine (JVM). "Java platform" is the name for a computing system that has installed tools for developing and running Java programs. Use this tag for questions referring to Java programming language or Java platform tools.
55 questions
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Help with Memory Usage Estimation of Java Threads
I am a data science beginner and I am looking for some directions regarding my problem. I hope it is ok if I ask my question here. My data set consists of the overall memory usage of a JVM every 30s ...
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How Can I Implement MOEA/D Algorithm in Java From Pseudocode?
I want to implement MOEA/D algorithm for a spesific population but I could not figure out how to write the java code from the pseudocode. My population size is 50 and the chromosomes shape is like ...
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Help Creating a XOR Neural Network in Java?
I have been trying to create a neural network in Java, but it doesn't quite work as intended. I am using a XOR test before I move on to more advanced problems, and it doesn't seem to be learning much....
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381views
Needed: Java library to calculate text readability/complexity
In principle the same as this but for Java (and ideally for multiple languages) (e.g. flesch reading ease, smog index, flesch kincaid grade, coleman liau index, automated readability index, dale chall ...
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When to use deep learning for java as opposed to python
I have been asked to explore options to build deep learning based applications using java, so i happend to browse a website called dl4j (https://deeplearning4j.org) which has got implemantations of ...
2votes
1answer
281views
Android: NLP library for date recognition in string
I am currently working on an android app which should make appointments automatically by reading the incoming messages from your mobile phone. I've managed to create a service which monitors the ...
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1vote
1answer
315views
call Python script from JavaEE
i create model using sklearn library and i want to run this model in JavaEE application i have been trying Jython, but it's impossible to import some important library like pandas and numpy, so how I ...
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2votes
5answers
126views
30 Years Of Excel Test Data
I am a CS intern at an industrial company that has 30 years of excel files that need to be analyzed. Looking at the data, only a fraction of the files need to be looked at and used. After those files ...
2votes
1answer
157views
Does PMML support probability calibration?
As I need to port a decision tree model from Python to Java, I would like to know whether PMML (Predictive Model Markup Language) supports probability calibration.
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SGD vs SGD in mini batches
So I recently finished a mini batches algorithm for a library in building in java(artificial neural network lib). I then followed to train my network for an XOR problem in mini batches size of 2 or 3, ...
2votes
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How to resample non-equidistant timeseries data in java?
I have a lot of movement data from a sensor of an android phone. The sensor-data is not equally spaced. The first column is the timestamp, the second to fourth are the values. I have many of these ...
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Tell me some things a data scientist/statistician needs to do that can't be done in R/Stata/SAS/SPSS [closed]
Why do I need to learn to program in python or Java and learn data structures? I can't think of a single thing statisticians/data scientists need to do that isn't built in as a package in R/stata.
user64141
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326views
Lightweight execution of Spark MLLib models
I have some training data which I am using to build a Spark MLLib model which is in a Hive database. I am using simple linear regression models and the PySpark API. I have a code set up to train this ...
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1answer
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Load keras model in Java
What are the requirements to load the trained model by Keras in Java? I checked that DeepLearning4J supports ...
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5votes
1answer
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How to sort two dimensional array in Java? [closed]
I have a two dimensional double array. I need to sort my based column 1 in descending order. How can I sort my two dimensional array in descending order. Sample data and code are the following: <...
