[MAHOUT-354] make the output of RecommenderJob more readable

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.4
• Fix Version/s: 0.4
• Labels: RecommenderJob output readable
• Assignee: Sean R. Owen
• Reporter: Han Hui Wen
• Created: 31/Mar/10 10:17
• Updated: 31/Jan/24 22:11
• Resolved: 27/Apr/10 08:49

Description

now the output of RecommenderMapper as following:
output.collect(userID, new RecommendedItemsWritable(recommendations));

Can we change it more readable like following:

private final Text user = new Text();
private final Text recomScore = new Text();
private static final String FIELD_SEPERATOR = ",";
for (RecommendedItem recommendation : recommendations)

{ user.set(String.valueOf(userId)); recomScore.set(recommendation.getItemID() + FIELD_SEPERATOR + recommendation.getValue()); output.collect(user, recomScore); }

then user can read and verify the result more convenient and need not depend on the mahout API