org.apache.mahout.math.Vector.logNormalize()方法的使用及代码示例

x33g5p2x  于2022-02-01 转载在 其他  
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本文整理了Java中org.apache.mahout.math.Vector.logNormalize()方法的一些代码示例，展示了Vector.logNormalize()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Vector.logNormalize()方法的具体详情如下：
包路径：org.apache.mahout.math.Vector
类名称：Vector
方法名：logNormalize

Vector.logNormalize介绍

[英]Return a new vector containing the log(1 + entry)/ L_2 norm values of the recipient
[中]返回一个新向量，其中包含收件人的log（1+条目）/L_2范数值

代码示例

代码示例来源：origin: apache/mahout

@Override
public Vector logNormalize(double power) {
 return delegate.logNormalize(power);
}

代码示例来源：origin: apache/mahout

@Override
public Vector logNormalize() {
 return delegate.logNormalize();
}

代码示例来源：origin: apache/mahout

@Override
public Vector logNormalize(double power) {
 return delegate.logNormalize(power);
}

代码示例来源：origin: apache/mahout

@Override
public Vector logNormalize() {
 return delegate.logNormalize();
}

代码示例来源：origin: apache/mahout

vec1.setQuick(1, 2);
vec1.setQuick(2, 3);
Vector norm = vec1.logNormalize();
assertNotNull("norm1 is null and it shouldn't be", norm);
vec2.setQuick(1, 2);
vec2.setQuick(2, 3);
Vector norm2 = vec2.logNormalize();
assertNotNull("norm1 is null and it shouldn't be", norm2);
norm = vec1.logNormalize(2);
assertVectorEquals(expected, norm, 1.0e-15);
norm2 = vec2.logNormalize(2);
assertVectorEquals(expected, norm2, 1.0e-15);
 vec1.logNormalize(1);
 fail("Should fail with power == 1");
} catch (IllegalArgumentException e) {
 vec1.logNormalize(-1);
 fail("Should fail with negative power");
} catch (IllegalArgumentException e) {
 vec2.logNormalize(Double.POSITIVE_INFINITY);
 fail("Should fail with positive infinity norm");
} catch (IllegalArgumentException e) {

代码示例来源：origin: apache/mahout

assertEquals(0, dv1.logNormalize().getDistanceSquared(v1.logNormalize()), FUZZ);
assertEquals(0, dv1.logNormalize(1.5).getDistanceSquared(v1.logNormalize(1.5)), FUZZ);

代码示例来源：origin: org.apache.mahout/mahout-math

@Override
public Vector logNormalize() {
 return delegate.logNormalize();
}

代码示例来源：origin: org.apache.mahout/mahout-math

@Override
public Vector logNormalize(double power) {
 return delegate.logNormalize(power);
}

代码示例来源：origin: org.apache.mahout/mahout-math

@Override
public Vector logNormalize() {
 return delegate.logNormalize();
}

代码示例来源：origin: cloudera/mahout

@Override
public Vector logNormalize() {
 return delegate.logNormalize();
}

代码示例来源：origin: org.apache.mahout/mahout-math

@Override
public Vector logNormalize(double power) {
 return delegate.logNormalize(power);
}

代码示例来源：origin: cloudera/mahout

@Override
public Vector logNormalize(double power) {
 return delegate.logNormalize(power);
}

代码示例来源：origin: org.apache.mahout/mahout-mr

@Override
protected void reduce(WritableComparable<?> key, Iterable<VectorWritable> values, Context context) throws IOException,
    InterruptedException {
 Vector vector = null;
 for (VectorWritable value : values) {
  if (vector == null) {
   vector = value.get().clone();
   continue;
  }
  //value.get().addTo(vector);
  vector.assign(value.get(), Functions.PLUS);
 }
 if (vector != null && normPower != PartialVectorMerger.NO_NORMALIZING) {
  vector = logNormalize ? vector.logNormalize(normPower) : vector.normalize(normPower);
 }
 VectorWritable vectorWritable = new VectorWritable(vector);
 context.write(key, vectorWritable);
}

代码示例来源：origin: org.apache.mahout/mahout-mrlegacy

@Override
protected void reduce(WritableComparable<?> key, Iterable<VectorWritable> values, Context context) throws IOException,
    InterruptedException {
 Vector vector = null;
 for (VectorWritable value : values) {
  if (vector == null) {
   vector = value.get().clone();
   continue;
  }
  //value.get().addTo(vector);
  vector.assign(value.get(), Functions.PLUS);
 }
 if (vector != null && normPower != PartialVectorMerger.NO_NORMALIZING) {
  vector = logNormalize ? vector.logNormalize(normPower) : vector.normalize(normPower);
 }
 VectorWritable vectorWritable = new VectorWritable(vector);
 context.write(key, vectorWritable);
}

代码示例来源：origin: org.apache.mahout/mahout-core

@Override
protected void reduce(WritableComparable<?> key, Iterable<VectorWritable> values, Context context) throws IOException,
    InterruptedException {
 Vector vector = null;
 for (VectorWritable value : values) {
  if (vector == null) {
   vector = value.get().clone();
   continue;
  }
  //value.get().addTo(vector);
  vector.assign(value.get(), Functions.PLUS);
 }
 if (vector != null && normPower != PartialVectorMerger.NO_NORMALIZING) {
  vector = logNormalize ? vector.logNormalize(normPower) : vector.normalize(normPower);
 }
 VectorWritable vectorWritable = new VectorWritable(vector);
 context.write(key, vectorWritable);
}

代码示例来源：origin: org.apache.mahout/mahout-core

@Override
protected void reduce(WritableComparable<?> key, Iterable<VectorWritable> values, Context context) throws IOException,
  InterruptedException {
 Vector vector = new RandomAccessSparseVector(dimension, 10);
 for (VectorWritable value : values) {
  vector.assign(value.get(), Functions.PLUS);
 }
 if (normPower != PartialVectorMerger.NO_NORMALIZING) {
  if (logNormalize) {
   vector = vector.logNormalize(normPower);
  } else {
   vector = vector.normalize(normPower);
  }
 }
 if (sequentialAccess) {
  vector = new SequentialAccessSparseVector(vector);
 }
 
 if (namedVector) {
  vector = new NamedVector(vector, key.toString());
 }
 // drop empty vectors.
 if (vector.getNumNondefaultElements() > 0) {
  VectorWritable vectorWritable = new VectorWritable(vector);
  context.write(key, vectorWritable);
 }
}

代码示例来源：origin: org.apache.mahout/mahout-mr

@Override
protected void reduce(WritableComparable<?> key, Iterable<VectorWritable> values, Context context) throws IOException,
  InterruptedException {
 Vector vector = new RandomAccessSparseVector(dimension, 10);
 for (VectorWritable value : values) {
  vector.assign(value.get(), Functions.PLUS);
 }
 if (normPower != PartialVectorMerger.NO_NORMALIZING) {
  if (logNormalize) {
   vector = vector.logNormalize(normPower);
  } else {
   vector = vector.normalize(normPower);
  }
 }
 if (sequentialAccess) {
  vector = new SequentialAccessSparseVector(vector);
 }
 
 if (namedVector) {
  vector = new NamedVector(vector, key.toString());
 }
 // drop empty vectors.
 if (vector.getNumNondefaultElements() > 0) {
  VectorWritable vectorWritable = new VectorWritable(vector);
  context.write(key, vectorWritable);
 }
}

代码示例来源：origin: org.apache.mahout/mahout-mrlegacy

@Override
protected void reduce(WritableComparable<?> key, Iterable<VectorWritable> values, Context context) throws IOException,
  InterruptedException {
 Vector vector = new RandomAccessSparseVector(dimension, 10);
 for (VectorWritable value : values) {
  vector.assign(value.get(), Functions.PLUS);
 }
 if (normPower != PartialVectorMerger.NO_NORMALIZING) {
  if (logNormalize) {
   vector = vector.logNormalize(normPower);
  } else {
   vector = vector.normalize(normPower);
  }
 }
 if (sequentialAccess) {
  vector = new SequentialAccessSparseVector(vector);
 }
 
 if (namedVector) {
  vector = new NamedVector(vector, key.toString());
 }
 // drop empty vectors.
 if (vector.getNumNondefaultElements() > 0) {
  VectorWritable vectorWritable = new VectorWritable(vector);
  context.write(key, vectorWritable);
 }
}

代码示例来源：origin: cloudera/mahout

vec1.setQuick(1, 2);
vec1.setQuick(2, 3);
Vector norm = vec1.logNormalize();
assertNotNull("norm1 is null and it shouldn't be", norm);
vec2.setQuick(1, 2);
vec2.setQuick(2, 3);
Vector norm2 = vec2.logNormalize();
assertNotNull("norm1 is null and it shouldn't be", norm2);
norm = vec1.logNormalize(2);
assertVectorEquals(expected, norm, 1.0e-15);
norm2 = vec2.logNormalize(2);
assertVectorEquals(expected, norm2, 1.0e-15);
 vec1.logNormalize(1);
 fail("Should fail with power == 1");
} catch (IllegalArgumentException e) {
 vec1.logNormalize(-1);
 fail("Should fail with negative power");
} catch (IllegalArgumentException e) {
 vec2.logNormalize(Double.POSITIVE_INFINITY);
 fail("Should fail with positive infinity norm");
} catch (IllegalArgumentException e) {

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