Today's Progress: Understood the basics of Neural Network and how to build ANN. Also practiced Python on Hackerrank.
Thoughts: Cleared up my concepts on ANN in which I had earlier found confusing like Activation and Cost functions, Batch and Stochastic Gradient Descent and Backpropagation.
A curated list of AWS resources to prepare for the AWS Certifications
A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.
Picking the right architecture = Picking the right battles + Managing trade-offs
- Clarify and agree on the scope of the system
- User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?
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// The MIT License | |
// | |
// Copyright (c) 2015 Neil Webber | |
// | |
// Permission is hereby granted, free of charge, to any person obtaining a copy | |
// of this software and associated documentation files (the "Software"), to deal | |
// in the Software without restriction, including without limitation the rights | |
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
// copies of the Software, and to permit persons to whom the Software is | |
// furnished to do so, subject to the following conditions: |
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javascript:(Ext.ComponentManager.each(function(c) { | |
c = Ext.getCmp(c); | |
if (c.isContainer && !c.isHeader && !c.isXType('tablepanel') && !c.isXType('headercontainer') && !c.hasCls('x-fieldset-header') && c.items.items.length === 1) { | |
console.log(c.id + ' only contains 1 child: check for overnesting'); | |
c.rendered && c.el.frame('red'); | |
} | |
})); |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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import java.text.SimpleDateFormat; | |
import java.util.Date; | |
import java.util.concurrent.DelayQueue; | |
import java.util.concurrent.Delayed; | |
import java.util.concurrent.TimeUnit; | |
/** | |
* A simple throttled blocking-queue that returns elements at a constant rate (M | |
* elements in N time) | |
* |