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I have created an application to extract text from image using AI

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 In this article, I am going to demonstrate how text is getting extracted from image file using Gemini AI model. Also, will explain how the application is developed with the help of chat GPT and some custom code.     Very first i gone to chatGPT application and added below prompts so that my application structure i can get the application code to start with. Following is the screenshot of the prompt i have written and answer given by chatGPT.    I have copied the code given by chat gpt and modified as per my requirement that means i got 70 to 80 percentage code to develop the application. Following are the Prerequisites required for development of this application : Visual studio code Python Api Key of Gemini can be obtain from https://aistudio.google.com    Open visual studio code and create the file with name " imagetextextractapp .py". Now in visual studio code and go to terminal menu and click on New terminal link it will open new terminal. In t...
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Create Chat bot application using Python, Streamlit and Gemini AI

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In this article I am going to explain creating chat bot application using Python, Streamlit library and Gemini AI. In this chat bot application application will be self host with specific port on computer ad can be accessible from browser.     following Prerequisites required for development of this application : Visual studio code Python Api Key of Gemini can be obtain from https://aistudio.google.com    Open visual studio code and create the file with name "chatbot.py". Now in visual studio code and go to terminal menu and click on New terminal link it will open new terminal. In terminal enter below command to install the Google generative AI library and steamlit library in your machine.   pip install google-generativeai langchain-google-genai streamlit   Now copy below code and paste in the " chatbot .py" file. import streamlit as st import google.generativeai as genai genai.configure(api_key="enter your key obtain from aistudio.google.com...
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Understanding the Singleton Design Pattern in C#

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The Singleton design pattern is one of the most widely used creational design patterns. It ensures that a class has only one instance while providing a global point of access to it. This is particularly useful when exactly one object is needed to coordinate actions across the system. In this blog post, we will explore the Singleton pattern in C#, understand why it’s useful, and review various implementations including thread safety and the usage of the Lazy<T> class. We will also look at how each of these approaches works with example code. Why Use the Singleton Pattern?   The primary purpose of the Singleton pattern is to control object creation by limiting the number of instances to just one. Some of the common use cases include: Configuration management: A centralized configuration object that needs to be accessed across different parts of the application. Logging: Logging systems should have a single instance for maintaining a consistent log throughout the application. C...
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Use Chroma DB vector database in RAG application using llama index & Deepseek R1 local model

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 In previous article I have explained how to install Deepseek R1 model locally and create the RAG application using the locally downloaded models step by step. In this article I will explain Step-by-step to use the Chroma DB vector database in RAG application using llama index & Deepseek R1 local model with Ollama. Chroma DB is open source vector db which can be used to store the vector embeddings of documents and query the embeddings based on user query. I have used the same example used in previous article and added only Chroma DB integration code.   Prerequisites for this example is as follows: Visual studio code Python Ollama  Open visual studio code and create the file with name "sample.py". Now in visual studio code and go to terminal menu and click on New terminal link it will open new terminal. In terminal enter below command to install the LlamaIndex library, Chroma DB library, LlamaIndex Ollama and  LlamaIndex embedding Ollama library in your mac...
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Angular User Session Timeout example step by step

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This functionality let the user know that their session is about to expire and that they would be logged out if they didn’t take action. I have written this functionality in Angular for my latest application.  If you are new to Angular 6 then read my article about Setting up Angular 6 step by step before jump to this article to get handy in Angular 6. Dealing with timers in Angular can be significantly different when using React components and subscriptions. The basic premises remains the same, though. We’ll have a service with a timer that will provide a Subject to which consumers of the service can subscribe. A React Subject provides an easy mechanism to trigger a “next” subscription to alert consumers that the timer has expired.   import { Injectable } from '@angular/core'; import { Observable, Subject, Subscription, BehaviorSubject} from 'rxjs/Rx'; @Injectable() export class IdleTimeoutService { private _count: number = 0; ...
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