How to estimate a Hadoop Cluster? [closed] - hadoop

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Can anybody help me in getting some useful ideas for estimating the size of a hadoop cluster and cluster hardware.

Well, it all depends on the amount of data you are handling and what exactly you are catering to. But, you can refer to this pdf here, to get more insight on how you can estimate.

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UI Design for a page [closed]

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As UI is one of the most import items in customer gaining, please take a look at this page and tell me pros and cons.
tank you very much indeed
https://pentazoom.ir/run-shopping-site/
I was trying to design a user friendly page. I don't know whether I was successful or not. I want the expert's opinion

Are there any redundant or duplicate code blocks that can be removed? [closed]

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code refactoring can improve the overall quality and efficiency of software development processes. It should be integrated as an ongoing process in the software development life cycle.
i was expecting real anser for this

J48 algorithm in weka algorithm or flowchart steps [closed]

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I am new in the machine learning area. please, I was wondering if you could provide me with algorithm or flowchart steps for J48.
note: I am using the default setting in weka.
thank you for your help.
J48 is based on Quinlan's C4.5.

what would be the best input shape in cnn? [closed]

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When i have high resolution image. (512,512,3) or (150,150,3) which input shape outperform?
In general it depends on what you want to achieve and how you define "outperform".
(512, 512, 3) will lead to better performance on some kind of metric like. accuracy, IoU ... (depending on the task), (150, 150, 3) will lead to worse performance but better runtime and less memory consumption.

Scheduling Algorithms [closed]

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I have a question in my exam that I don't know how to answer it:
Consider that you have a machine for personal use and you are developing various programs. Before going to lunch you want to leave five large programs to compile. In this scenario justifies what / which of the following scheduling algorithms would select: First Come First Served, Shortest Job First, Round Robin or Priority scheduling.
I'd honestly chose Shortest Job First for the simple reason that when I come back from lunch I want to have as many programs available to debug and test as possible.

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