-
as seen on Stack Overflow
- Search for 'Stack Overflow'
In many real-life situations where you apply MapReduce, the final algorithms end up being several MapReduce steps.
I.e. Map1 , Reduce1 , Map2 , Reduce2 , etc.
So you have the output from the last reduce that is needed as the input for the next map.
The intermediate data is something you (in general)…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
When I executed a MapReduce program in Eclipse using Hadoop, I got the below error.
It has to be some change in path, but I'm not able to figure it out.
Any idea?
16:35:39 INFO mapred.JobClient: Task Id : attempt_201001151609_0001_m_000006_0, Status : FAILED
java.io.FileNotFoundException: File C:/tmp/hadoop-Shwe/mapred/local/taskTracker/jobcache/job_201001151609_0001/attempt_201001151609_0001_m_000006_0/work/tmp…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
Hello,
I would like to convert the following Java program to a MapReduce job. I have read about MapReduce and feel like this would be a good problem to solve using it, but I cannot figure out what to do.
This basically loops through a directory of html files and parses them into a CSV file.
http://www…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
Could mapreduce be used to implement a webserver?
I'm thinking something like when a request comes in then the request sits on a queue, until a server is free to process it? Or am I missing the point here?
>>> More
-
as seen on SQL Authority
- Search for 'SQL Authority'
In yesterday’s blog post we learned what is Hadoop. In this article we will take a quick look at one of the four most important buzz words which goes around Big Data – MapReduce.
What is MapReduce?
MapReduce was designed by Google as a programming model for processing large data sets with…
>>> More
-
as seen on Super User
- Search for 'Super User'
I'm just wonder, what the differences are between creating a BMP file algorithm and JPG file algorithm ?
If you know the others images' format algorithm, please post them.
Thanks.
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
Hii..
Can anybody help me to find an algorithm in Java code to find synonyms of a search word based on the context and I want to implement the algorithm with WordNet database.
For example, "I am running a Java program". From the context, I want to find the synonyms for the word "running", but the…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
Hello,
Im doing a Java application and Im facing some doubts in which concerns performance.
I have a PriorityQueue which guarantees me the element removed is the one with greater priority. That PriorityQueue has instances of class Event (which implements Comparable interface). Each Event is associated…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
So I have Image like this
I want to get something like this (I hevent drawn all lines I want but I hope you can get my idea)
I need algorithm for finding all straight lines on it by just reading colors of pixels. No hard math, no Haar, no Hough. Some algorithm which would be based on points…
>>> More
-
as seen on Game Development
- Search for 'Game Development'
So i implemented a Quad tree in Java for my 2D game and everything works fine except for when i run my collision detection algorithm, which checks if a object has hit another object and which side it hit.My problem is 80% of the time the collision algorithm works but sometimes the objects just go…
>>> More
