ZFNet: An Explanation of Paper with Code

In ImageNet Large Scale Visual Recognition Challenge (ILSVRC) 2013, ZFNet came to the limelight having significant improvement over AlexNet. This paper is the golden gem that gives you the starting point for many concepts such as deep feature visualization, feature invariance, feature evolution, and feature importance.

---

Architecture

https://arxiv.org/pdf/1311.2901.pdf

• Our input is 224x224x3 images.
• Next, 96 convolutions of 7x7 with a stride of 2 are performed, followed by **ReLU **activation, **3x3 max pooling with stride 2 **and local contrast normalization.
• Followed by it are 256 filters of 3x3 each which are then again local contrast normalized and pooled.
• The third and fourth layers are identical with 384 kernels of 3x3 each.
• The fifth layer has 256 filters of 3x3, followed by 3x3 max pooling with stride 2 and local contrast normalization.
• The sixth and seventh layers house 4096 dense units each.
• Finally, we feed into a** Dense layer of 1000** neurons i.e. the number of classes in ImageNet.

#ai #towards-data-science #machine-learning #learning-to-code #deep-learning

What is GEEK

Buddha Community

Static Code Analysis: What It Is? How to Use It?

Static code analysis refers to the technique of approximating the runtime behavior of a program. In other words, it is the process of predicting the output of a program without actually executing it.

Lately, however, the term “Static Code Analysis” is more commonly used to refer to one of the applications of this technique rather than the technique itself — program comprehension — understanding the program and detecting issues in it (anything from syntax errors to type mismatches, performance hogs likely bugs, security loopholes, etc.). This is the usage we’d be referring to throughout this post.

“The refinement of techniques for the prompt discovery of error serves as well as any other as a hallmark of what we mean by science.”

• J. Robert Oppenheimer

Outline

We cover a lot of ground in this post. The aim is to build an understanding of static code analysis and to equip you with the basic theory, and the right tools so that you can write analyzers on your own.

We start our journey with laying down the essential parts of the pipeline which a compiler follows to understand what a piece of code does. We learn where to tap points in this pipeline to plug in our analyzers and extract meaningful information. In the latter half, we get our feet wet, and write four such static analyzers, completely from scratch, in Python.

Note that although the ideas here are discussed in light of Python, static code analyzers across all programming languages are carved out along similar lines. We chose Python because of the availability of an easy to use ast module, and wide adoption of the language itself.

How does it all work?

Before a computer can finally “understand” and execute a piece of code, it goes through a series of complicated transformations:

As you can see in the diagram (go ahead, zoom it!), the static analyzers feed on the output of these stages. To be able to better understand the static analysis techniques, let’s look at each of these steps in some more detail:

Scanning

The first thing that a compiler does when trying to understand a piece of code is to break it down into smaller chunks, also known as tokens. Tokens are akin to what words are in a language.

A token might consist of either a single character, like (, or literals (like integers, strings, e.g., 7, Bob, etc.), or reserved keywords of that language (e.g, def in Python). Characters which do not contribute towards the semantics of a program, like trailing whitespace, comments, etc. are often discarded by the scanner.

Python provides the tokenize module in its standard library to let you play around with tokens:

Python

1

import io

2

import tokenize

3

4

code = b"color = input('Enter your favourite color: ')"

5

6

for token in tokenize.tokenize(io.BytesIO(code).readline):

7

    print(token)

Python

1

TokenInfo(type=62 (ENCODING),  string='utf-8')

2

TokenInfo(type=1  (NAME),      string='color')

3

TokenInfo(type=54 (OP),        string='=')

4

TokenInfo(type=1  (NAME),      string='input')

5

TokenInfo(type=54 (OP),        string='(')

6

TokenInfo(type=3  (STRING),    string="'Enter your favourite color: '")

7

TokenInfo(type=54 (OP),        string=')')

8

TokenInfo(type=4  (NEWLINE),   string='')

9

TokenInfo(type=0  (ENDMARKER), string='')

(Note that for the sake of readability, I’ve omitted a few columns from the result above — metadata like starting index, ending index, a copy of the line on which a token occurs, etc.)

#code quality #code review #static analysis #static code analysis #code analysis #static analysis tools #code review tips #static code analyzer #static code analysis tool #static analyzer

Guidelines for Java Code Reviews

Get a jump-start on your next code review session with this list.

Having another pair of eyes scan your code is always useful and helps you spot mistakes before you break production. You need not be an expert to review someone’s code. Some experience with the programming language and a review checklist should help you get started. We’ve put together a list of things you should keep in mind when you’re reviewing Java code. Read on!

1. Follow Java Code Conventions

2. Replace Imperative Code With Lambdas and Streams

3. Beware of the NullPointerException

4. Directly Assigning References From Client Code to a Field

5. Handle Exceptions With Care

…

#java #code quality #java tutorial #code analysis #code reviews #code review tips #code analysis tools #java tutorial for beginners #java code review

ICO White Paper Writing Services, Crypto White Paper Development

An initial coin offering (ICO) is a vehicle that can materialize the vision of any business. It reaches every prospective investor out there. However, this instrument has to be made that effective and it is possible only through a white paper. With this document, your business gets the power to get established with flying colors. If you have reliable white paper writing services, you can get things done very easily. It is very easy for you to come out with a perfect pitch and allure the target audience to make a move that gives you benefits.

How can I get a befitting white paper for my business project?

To do that, you need to work with writers who are familiar with the working of your domain. Also, they need to have great writing skills and content creation skills so your proposal could get all the attention it requires. When you introduce your idea with this document, everything gets very easy and there is absolutely no need to find add-ons. It works as a panacea for every single entrepreneur and gives them the ability to do something great. Once you have a perfect whitepaper, you don’t need extreme marketing moves as well.

That’s correct, a perfect whitepaper can give you all the eyeballs that you need, it helps you build strong traction among the investors. The criteria, however, is to stick with the basics of your industry and focus on giving value to the readers. When you do that, it is easier for you to delve deeper into many areas and to amaze everyone. The facts written in this doc have to be very precise and you have to sure about absolutely everything. As soon as you have a particular way to go, you don’t have to waste time on one topic.

You can switch from one niche to another and involve examples that could explain a whole concept very clearly. When you are ready with such a perfect whitepaper, you get to make things fluid for the traders. No matter how you want to execute your business, you get a more effective structure that helps in optimizing the entire mechanism. It is quite possible that you belong to a domain that is very flexible and ductile. Even with these conditions, you need to have precise about the changes you want to bring. This approach keeps you ahead in various ways and it gives you time to strategize too.

What is the right way to approach ICO whitepaper development?

When it comes to drafting a document that explains your startup in an impeccable manner, you have to be very choosy. Whether you want to come up with a certain plan or not, you get to bring the changes in your plan. As soon as you are clear about the project, you must start thinking about the content. It is very important that you remain one step ahead on the different fronts so there is absolutely no need for a backup structure and you can begin the process.

At the time of finalizing the prospect of your enterprise, it is very important that things get more descriptive with time. Also, you get to think of some additional measures that could expedite the creation of such tactics. Whether you understand the significance of this tool or not, you cannot simply underestimate it entirely. The focal point of your company gets clearer to every single entity and you get to work on things with better control. Also, you get to protect the entire thing with a foolproof system that covers all the risks with absolutely no repercussions.

Once you have made up your mood about this solution and ready to hire a writer, you must come up with a reliable team. That is important because you have to share many ideas and insights about your operations with them. You have to ensure a good scope of sharing ideas so anyone could add value to your project. It is vital that you keep every single member stuck to their goals, this way, you get a more appropriate response from your audience. Besides that, you get a more protective layer of information that keeps all the data secure sans any loopholes.

What should I keep in mind while choosing ICO whitepaper writers?

For choosing the most efficient writer for your project, you need to have a more planned approach. Also, you have to come up with something that could help in the ceaseless growth of your company. The pain points of your customers have to be understood, so you don’t mistake in any phase of making the whitepaper. Whether you like it nor not, you can always give a more reasonable answer to the questions asked on the forums. The open-source framework gives you better fixes and it also keeps you ahead in terms of your objectives.

Just by selecting the right people, it is possible for you to manage the expansive work at every stage. The creation of such aspects gives you insights about everything, it also helps you in giving a proper shape to the proximal attitudes. By optimizing every attribute, you get to make all the factors sublime and the readers get impressed by your efforts. It does not matter how you minimize the cost and increase the effect, you get prolific results. It makes you a better planner so you could pave the way to permanent success.

The selection of writers has to start with the thorough checking of profiles and every time you do it, you extend the chances of success. Regardless of the size and nature of your startup, you get to check a large number of solutions in a very minimum duration. Through this elaborate document, it is possible for you to induct pioneering solutions that protect your enterprise against any risk or volatility. The whole point of appointing writers is to ensure that you present your proposal in an unmatched matter. By doing it strategically, you make certain that there are no flaws.

Conclusion

With Coin Developer India, it is possible for any enterprise to come up with revolutionary ideas every time it is going to do something important. Our experts make certain that you can do something really exceptional to obtain the attention of the investors. When it comes to making an ICO successful, our entire team collaborates to give you the best results. Our writers come from all walks of life and they realize the power of content. We help your startup get nothing but the best so it could be on the frontline of its niche.

The solutions given by us are very direct in nature, they always strike the chord with people you want to affect. At the time of making this document, we give a proper treatment that makes your enterprise a strong contender on every front. No matter what you want to achieve, we make it possible through a broad spectrum of services. We make whitepaper so powerful that investors cannot overlook and your idea gets materialized in the best possible way. Our writers give your business what it truly deserves, we perpetuate your business’ position.
Want your business to be successful? Make it possible with us!

Get matchless ICO whitepaper writing services and make your project an absolute success. The expert writers of Coin Developer India make this possible easily.

Contact Details:

Call and Whatsapp : +91-7014607737
Email: cryptodeveloperjaipur@gmail.com
Telegram : @vipinshar

#cryptocurrency white paper writing #white paper writing #cryptocurrency white paper #ico white paper #white paper development #hire white paper writer

How to Find the Stinky Parts of Your Code (Part II)

There are more code smells. Let’s keep changing the aromas. We see several symptoms and situations that make us doubt the quality of our development. Let’s look at some possible solutions.

Most of these smells are just hints of something that might be wrong. They are not rigid rules.

This is part II. Part I can be found here.

Code Smell 06 - Too Clever Programmer

The code is difficult to read, there are tricky with names without semantics. Sometimes using language’s accidental complexity.

_Image Source: NeONBRAND on _Unsplash

Problems

• Readability
• Maintainability
• Code Quality
• Premature Optimization

Solutions

1. Refactor the code
2. Use better names

Examples

• Optimized loops

Exceptions

• Optimized code for low-level operations.

Sample Code

Wrong

function primeFactors(n){
	  var f = [],  i = 0, d = 2;  

	  for (i = 0; n >= 2; ) {
	     if(n % d == 0){
	       f[i++]=(d); 
	       n /= d;
	    }
	    else{
	      d++;
	    }     
	  }
	  return f;
	}

Right

function primeFactors(numberToFactor){
	  var factors = [], 
	      divisor = 2,
	      remainder = numberToFactor;

	  while(remainder>=2){
	    if(remainder % divisor === 0){
	       factors.push(divisor); 
	       remainder = remainder/ divisor;
	    }
	    else{
	      divisor++;
	    }     
	  }
	  return factors;
	}

Detection

Automatic detection is possible in some languages. Watch some warnings related to complexity, bad names, post increment variables, etc.

#pixel-face #code-smells #clean-code #stinky-code-parts #refactor-legacy-code #refactoring #stinky-code #common-code-smells

Papers With Code (Free Resource of Machine Learning Papers and Code)

Are you ready to take your data science learning to the next level? If so, Papers With Code will be an invaluable, free and open resource that will give you free access to Machine Learning papers, code and evaluation tables.

#papers with code #code