## How to Evaluate a Logistic Regression Model?

Updated on 24-Jul-2023 17:50:24

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Introduction Logistic regression is a prominent statistical approach for predicting binary outcomes such as disease presence or absence or the success or failure of a marketing effort. While logistic regression may be an effective method for predicting outcomes, it is critical to assess the model's performance to verify that it is a good match for the data. There are various ways for assessing the performance of a logistic regression model, each with its own set of advantages and disadvantages. This article will go through the most popular methods for assessing logistic regression models, such as the confusion ... Read More

## How to Find Sum of Matrix Elements in Java?

Updated on 04-May-2023 16:13:42

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In Java, Array is an object. It is a non-primitive data type which stores values of similar data type. The matrix in java is nothing but a multi-dimensional array which represents multiple rows and columns. Here we have given a matrix which contains set of elements and as per the problem statement we have to find out the sum of all the elements present inside the matrix. Let’s deep dive into this article, to know how it can be done by using Java programming language. To show you some instances Instance-1 Given matrix =21 22 23 24 25 26 27 28 29 Sum ... Read More

## Non-Negative Matrix Factorization

Updated on 23-Mar-2023 18:28:36

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Introduction Non-Negative Matrix Factorization (NMF) is a supervised algorithm used to represent data into lower dimensions which reduces the number of features while preserving enough basic information to construct the original matrix from the reduced feature space. In this article, we will be going explore more about NMF and how it can be useful. Non-Negative Matrix Factorization NMF is used to reduce the dimensions of the input matrix or corpus. It uses factor analysis which gives less importance to less relevant words. The decomposition of the original matrix(which is a non-negative matrix) thus creates a product of two non-negative coefficients ... Read More

## Trace Your Requirements with A Traceability Matrix (RTM)

Updated on 17-Jan-2020 11:46:58

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The backbone of any project lies with requirements. The requirements identified, collected and documented at the initial stages, are generally designed, coded, tested, and takes the shapes of a product or an application to be used by the customers later. Those requirements are referred at any point of time by the team and other stakeholders to check whether the current project requirements are being met. And tracking back those bulk of requirements at the later stage of the project by manually examining the relationship between them is a cumbersome affair.Business Scenario – Case StudiesLet’s discuss a scenario, Mr. A is ... Read More