在 android 上使用 weka 库时出错（想要在 Android 应用程序中实施机器学习）

Question

为了在 Android 应用程序中实施机器学习，我正在使用 'WEKA Tool'，我已将其包含在项目 'libs' 中，并从 'gradle' 编译它项目。

但是当运行在 phone 上调用该函数进行分类时（调用 'RandomForest Classifier'），我的应用程序崩溃了。

我收到这个 'Runtime Error'。谁能帮帮我？

   Unable to create WEKA_HOME (/wekafiles)
   Unable to create packages directory (/wekafiles/packages)
   Unable to create repository cache directory (/wekafiles/repCache)
   D/AndroidRuntime: Shutting down VM
   E/AndroidRuntime: FATAL EXCEPTION: main
          Process: com.example.weirdmyth.testapp, PID: 31474
          java.lang.NoClassDefFoundError: Failed resolution of: Ljava/awt/GraphicsEnvironment;
               at weka.core.packageManagement.PackageManager.setProxyAuthentication(PackageManager.java:191)
               at weka.core.WekaPackageManager.establishWekaHome(WekaPackageManager.java:377)
               at weka.core.WekaPackageManager.<clinit>(WekaPackageManager.java:162)
               at weka.core.Utils.readProperties(Utils.java:174)
               at weka.core.Capabilities.<init>(Capabilities.java:275)
               at weka.classifiers.AbstractClassifier.getCapabilities(AbstractClassifier.java:508)
               at weka.classifiers.trees.RandomTree.getCapabilities(RandomTree.java:602)
               at weka.classifiers.trees.RandomForest.getCapabilities(RandomForest.java:182)
               at weka.classifiers.meta.Bagging.buildClassifier(Bagging.java:701)
               at com.example.weirdmyth.testapp.MainActivity.showExtractData(MainActivity.java:68)
               at com.example.weirdmyth.testapp.MainActivity.access[=12=]0(MainActivity.java:18)
               at com.example.weirdmyth.testapp.MainActivity.onClick(MainActivity.java:35)
               at android.view.View.performClick(View.java:4794)
               at android.view.View$PerformClick.run(View.java:19905)
               at android.os.Handler.handleCallback(Handler.java:739)
               at android.os.Handler.dispatchMessage(Handler.java:95)
               at android.os.Looper.loop(Looper.java:139)
               at android.app.ActivityThread.main(ActivityThread.java:5298)
               at java.lang.reflect.Method.invoke(Native Method)
               at java.lang.reflect.Method.invoke(Method.java:372)
               at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:950)
               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:745)
         Caused by: java.lang.ClassNotFoundException: Didn't find class "java.awt.GraphicsEnvironment" on path: DexPathList[[dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-weka_24a0e957b7a2bd7b1eca884c1d1fe17134d04e02-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-support-annotations-24.2.0_1d91a870686be0d9b2c0cad6f095599608f8ea8b-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_9-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_8-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_7-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_6-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_5-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_4-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_3-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_2-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_1-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_0-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_e60a43d4d67966d22f555860d8f3ea89bf40a00d-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_bab1238d93c9b1e214aa74253243e0e0a1179d1b-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_ac3ce21dd47241b373379a2a2250d916ddec89f2-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_86622e6ad735878a3262fd8fb6bc9c316447f2bd-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_024d25ee6599778d6213941fb989deeaa23d0a37-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-com.android.support-support-vector-drawable-24.2.0_a300254740b0ce696848c36d6b2c7e26898aba9c-classes.dex", dex file "/data/data/com.example

Answer 1

试试这个：https://github.com/rjmarsan/Weka-for-Android

正如作者所说：并没有承诺 100% 的功能。不过总比没有好吧。

在 android 上使用 weka 库时出错（想要在 Android 应用程序中实施机器学习）

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