public class AffinityMatrixInputMapper extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,DistributedRowMatrix.MatrixEntryWritable>
Handles reading the files representing the affinity matrix. Since the affinity matrix is representative of a graph, each line in all the files should take the form:
i,j,value
where i
and j
are the i
th and
j
data points in the entire set, and value
represents some measurement of their relative absolute magnitudes. This
is, simply, a method for representing a graph textually.
Constructor and Description |
---|
AffinityMatrixInputMapper() |
Modifier and Type | Method and Description |
---|---|
protected void |
map(org.apache.hadoop.io.LongWritable key,
org.apache.hadoop.io.Text value,
org.apache.hadoop.mapreduce.Mapper.Context context) |
protected void map(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text value, org.apache.hadoop.mapreduce.Mapper.Context context) throws IOException, InterruptedException
map
in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,DistributedRowMatrix.MatrixEntryWritable>
IOException
InterruptedException
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