Comviva Technology Data Scientist Interview Questions and Answers

Digital Image Processing is the manipulation of digital images using algorithms to enhance, analyze, or extract information.

• It involves techniques like image enhancement, restoration, segmentation, and compression.

• Common applications include medical imaging, satellite imaging, facial recognition, and object detection.

• Algorithms like edge detection, noise reduction, and image stitching are used in digital image processi...read more

OOP in Python is a programming paradigm where objects are created that contain data and methods to manipulate that data.

• Classes are used to create objects in Python

• Objects have attributes (data) and methods (functions)

• Inheritance allows classes to inherit attributes and methods from other classes

• Encapsulation allows data to be hidden and only accessed through methods

• Polymorphism allows objects to be treated as instance

Machine Learning algorithms are used to train models on data to make predictions or decisions without being explicitly programmed.

• Machine Learning algorithms can be categorized into supervised, unsupervised, and reinforcement learning.

• Examples of supervised learning algorithms include linear regression, decision trees, and support vector machines.

• Examples of unsupervised learning algorithms include k-means clustering, ...read more