3 definitions by Yosemite sam
by Yosemite sam September 21, 2022
A large phallus. has been seen roaming southern Indiana and many foreign countrys. Is gentle when aproached can be petted gently
by Yosemite sam May 14, 2006
The now freely available framework that gave Google infinite ability to acquire and manipulate data. It describes a way to distribute the power of a master node over an infinite number of worker nodes.
The canonical example application of MapReduce is a process to count the appearances of each different word in a set of documents:
void map(String name, String document):
// name: document name
// document: document contents
for each word w in document:
EmitIntermediate(w, "1");
void reduce(String word, Iterator partialCounts):
// word: a word
// partialCounts: a list of aggregated partial counts
int sum = 0;
for each pc in partialCounts:
sum += ParseInt(pc);
Emit(word, AsString(sum));
-From Wikipedia
void map(String name, String document):
// name: document name
// document: document contents
for each word w in document:
EmitIntermediate(w, "1");
void reduce(String word, Iterator partialCounts):
// word: a word
// partialCounts: a list of aggregated partial counts
int sum = 0;
for each pc in partialCounts:
sum += ParseInt(pc);
Emit(word, AsString(sum));
-From Wikipedia
by Yosemite sam February 28, 2012