Why Accuracy is Troublesome, Even With Balanced Classes

Accuracy is a go-to metric because it’s highly interpretable and low-cost to evaluate. For this reason, accuracy — perhaps the most simple of machine learning metrics — is (rightfully) commonplace. However, it’s also true that many people are too comfortable with accuracy.
Being aware of the limitations of accuracy is essential.

Everyone knows that accuracy is misused on unbalanced datasets: for instance, in a medical condition dataset, where the majority of people do not have condition x (let’s say 95%) and the remainder do have condition x.

Since machine learning models are always looking for the easy way out, and especially if an L2 penalization is used (a proportionately less penalty on lower errors), the model can comfortably get away with 95% accuracy only guessing all inputs do not have condition x.

#artificial-intelligence #machine-learning #ai #data-science #data-analysis

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Why Accuracy is Troublesome, Even With Balanced Classes

Yashi Tyagi

1617449307

CA Classes - Best CA Classes Online

Chartered Accountancy course requires mental focus & discipline, coaching for CA Foundation, CA Inter and CA Finals are omnipresent, and some of the best faculty’s classes have moved online, in this blog, we are going to give the best way to find online videos lectures, various online websites provide the CA lectures, Smartnstudy one of the best site to CA preparation, here all faculty’s video lecture available.

check here : ca classes

#ca classes online #ca classes in delhi #ca classes app #ca pendrive classes #ca google drive classes #best ca classes online

Joseph  Murray

Joseph Murray

1624048020

How to Find All the Classes of a Package in Java

In this article let’s take a look at how to find all classes of a package in Java

To find all classes of a package in Java we can use the ClassHunter of Burningwave Core library. So we start by adding the following dependency to our pom.xml:

XML

1

<dependency>2
    <groupId>org.burningwave</groupId>3
    <artifactId>core</artifactId>4
    <version>8.4.0</version>5
</dependency>

The next steps are the following:

  • retrieving the ClassHunter through the ComponentContainer
  • defining a regular expression that we must pass to the **ClassCriteria **object that will be injected into the **SearchConfig **object
  • calling the **loadInCache **method that loads in the cache all loadable classes of the indicated paths, then applies the criteria filter and then returns the **SearchResult **object which contains the classes that match the criteria

#java #classes #class #packages #package #how to find all the classes of a package in java

Target Class Does Not Exist In Laravel 8

As you all know laravel 8 already released and you can see there are many changes and update in laravel 8 version. many laravel users are facing issue in their new Laravel 8 version when they try to load their routes in web.php and they run into an Exception that says something like “Target class postController does not exist”.

Target Class Does Not Exist In Laravel 8

https://websolutionstuff.com/post/target-class-does-not-exist-in-laravel-8

#target class does not exist in laravel 8 #error #target class controller does not exist #target class not found #laravel #target class does not exist error solved

Joseph  Murray

Joseph Murray

1624063200

Creating an Immutable Class in Java

In this article, we’ll define the typical steps for creating an immutable class in Java and then implement it.

Steps to create Immutable class in java

  1. Make your class final, so that no other classes can extend it.
  2. Make all fields private so that direct access is not allowed.
  3. Don’t provide “setter” methods — methods that modify fields or objects referred to by fields.
  4. Special attention when having mutable instance variables
  5. Inside the constructor, make sure to use a clone copy of the passed argument and never set your mutable field to the real instance passed through the constructor.
  6. Make sure to always return a clone copy of the field and never return the real object instance.

#java #class #objects #immutable #creating an immutable class in java #immutable class in java

Why Accuracy is Troublesome, Even With Balanced Classes

Accuracy is a go-to metric because it’s highly interpretable and low-cost to evaluate. For this reason, accuracy — perhaps the most simple of machine learning metrics — is (rightfully) commonplace. However, it’s also true that many people are too comfortable with accuracy.

Being aware of the limitations of accuracy is essential.

Everyone knows that accuracy is misused on unbalanced datasets: for instance, in a medical condition dataset, where the majority of people do not have condition x (let’s say 95%) and the remainder do have condition x.

#artificial-intelligence #machine-learning #ai #data-science #data-analysis