Application of a Mobile Chronic Disease Health-Care System for Hypertension Based on Big Data Platforms

Algorithm 1

Disease count running on HBase.

Input:

 HBase table

Output:

 Diseases count and related info

1. class Mapper

2. method map (HBase table)

3.  for each instance row in table

4.   write ((disease_i, patientID), 1)

5.

6. class Reducer

7. method reduce ((disease_i, patientID), ones[1,1,1,…n])

8.  sum=0

9.  for each one in ones do

10.   sum+=1

11.  return ((disease_i, patientID),sum)