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Articles by Rohan Singh
Page 12 of 15
Difference Between Dataset.from_tensors and Dataset.from_tensor_slices
Dataset.from_tensors and Dataset.from_tensor_slices are methods in the TensorFlow library that are used to create datasets. Dataset.from_tensor creates a dataset from a single tensor whereas Dataset.from_tensor_slices creates data set by slicing a tensor along the first dimension. In this article, we will understand the difference between the two methods and how they are used in different use cases. from_tensor from_tensor_slices Creates a dataset from a single tensor Creates a dataset by slicing a tensor along the first dimension Useful for small datasets that can fit in memory Useful for large datasets that ...
Read MoreDifference between BeautifulSoup and Scrapy Crawler
Beautiful Soup and Scrapy Crawler are used for doing web scraping in Python. Both of these tools have the same use case but have different functionalities. Web scraping is useful in data collection and analysis in fields like research, marketing, and business intelligence. In this article, we will understand the difference between Beautiful Soup and Scrapy Crawler and how they are used in web scraping. Feature Beautiful Soup Scrapy Parsing Used for parsing HTML and XML documents Uses a combination of parsing and crawling to extract data from websites. Ease of Use Simple ...
Read MoreAdam Optimizer in Tensorflow
Adam optimizer in Tensorflow is an algorithm used in deep learning models. Optimization algorithms are used in deep learning models to minimize the loss function and improve performance. Adam stands for Adaptive Moment Estimation, which is a stochastic gradient descent algorithm. It combines the advantages of both RMSprop and AdaGrad algorithms to achieve a better optimization result. In this article, we will understand the Adam Optimizer in Tensorflow and how it works. Working principle of Adam Optimizer Adam optimizer is an iterative optimization algorithm. It uses first and second-order moments of the gradient to adaptively adjust the learning rate ...
Read MoreAccessing Web Resources using Factory Method Design Pattern in Python
The Factory Method Design Pattern of Python is a creational pattern that provides an interface for creating objects in a superclass but allows subclasses to alter the type of objects that will be created. It is used to define a generic interface for creating objects while allowing subclasses to decide which class to instantiate. In this article, we will explore how to use the Factory Method Design Pattern to access web resources in Python. Accessing Web Resources Python provides several libraries for accessing web resources such as HTTP requests, urllib, and Requests. These libraries allow us to send HTTP requests ...
Read MorePython Program to Replace the Spaces of a String with a Specific Character
In Python, the spaces of a string with a special character can be replaced using replace() method. The replace method replaces all occurrences of the passed substring with a new substring. In this article, we will see how we can use replace() method to replace the spaces of a string with another specific substring. Syntax of Replace Method The syntax of the replace method is as follows − string.replace(old, new[, count]) The replace method takes two inputs, one is the old string which is the substring you want to replace and another input is the new string which is ...
Read MorePython Program to open a file in the read-write mode without truncating the file
In Python, we can open a file in a read-write mode without truncating the file by opening the file in a+ mode. Truncating a file refers to deleting the existing content of the file before opening the file. In this article, we will discuss how we can open the file in the read-write mode without truncating the file. What is a+ mode The a+ mode in Python is used to open the file in a read-write mode without truncating the file. When the file is opened in a+ mode it allows us to write new data at the end of ...
Read MorePython Program to Insert a string into another string
In Python, we can insert a string into another string using the string concatenation method, string interpolation method, and using replace() method. Python provides various ways to insert a string into another string. In this article, we will understand all the methods with the help of suitable examples. Method 1: Using the Concatenation Operator String concatenation simply joins two strings together using the (+) operator. Any number of strings can be concatenated using this method in a simple and effective way. Example In the below example, we initialized three strings namely string1, string2, and inserted_string. We need to insert the ...
Read MorePython Program to implement switch statement on String
In Python, we can implement switch statements on a string using the dictionary-based approach, class-based approach, and lambda-based approach. Unlike other programming languages like Java, c++, etc python does not have an inbuilt switch statement. In this article, we will see how we can achieve the switch statement functionality in Python using a dictionary-based approach and class-based approach, and lambda-based approach. The Switch Statement in Other Programming Languages Before understanding how Python implements switch statements we need to understand how to switch statements work and how they are implemented in other programming languages. A switch statement is a conditional statement ...
Read MorePython Program to Get a Character From the Given String
In Python we can get a character from the given string using the indexing operator ‘[ ]’, using slices, and using indices separated by a colon. By passing the index of the character we want to access to the index operator we can easily get the character from the string. In this article, we will see how we can access the character of the string using the index operator. Using [ ] Operator Syntax string[index] Here string is the given string from which we want to access a specific character. The index is the index of the character in ...
Read MorePython Program To Find all the Subsets of a String
In Python, a subset of a string is a sequence of characters that is part of the original string. We can find all the subsets of a string using itertools module in Python. In this article, we will see how we can generate all the subsets of a string by making all possible combinations of characters in the string. Syntax itertools.combination(string, r) The combination() function of itertools module takes the string and r which represents the size of different combinations of strings that are possible.It returns all the combinations of characters of the string that are possible. Algorithm ...
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