Deep Learning

Gradient of Softmax + Cross-Entropy w.r.t Logits

Artificial Intelligence, Deep Learning, Machine Learning, Machine Learning /

Gradient of Softmax + Cross-Entropy w.r.t Logits Author: Bindeshwar Singh Kushwaha – PostNetwork Academy Goal We want to compute: $$ \frac{\partial L}{\partial z_j} $$ Notation: Logits: \(z = [z_1, z_2, \dots, z_C]\) Softmax: \(\hat{y}_i = \frac{e^{z_i}}{\sum_{k=1}^{C} e^{z_k}}\) Cross-Entropy Loss: \(L = -\sum_{i=1}^{C} y_i \log \hat{y}_i\), where \(y_i\) is one-hot. [Insert Neural Network Diagram Here] Loss […]

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Understanding Neural Networks: Softmax, Cross-Entropy, and Backpropagation

Deep Learning, Machine Learning /

Understanding Neural Networks: Softmax, Cross-Entropy, and Backpropagation Author: Bindeshwar Singh Kushwaha – PostNetwork Academy Neural Network with Softmax + Cross-Entropy Input Layer: The network receives 3 input features, denoted \(x_1, x_2, x_3\). Hidden Layer: 2 neurons in the hidden layer with activations \(a^{(1)}\) and \(a^{(2)}\). Output Layer: 2 outputs \(z^{(3)}, z^{(4)}\), passed through softmax. Softmax

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Building a Smart Indian Food Recommender Using TinyLlama, Ollama, and Python

Artificial Intelligence, Data Handling, Deep Learning, Generative A. I., IoT, Machine Learning /

Building a Smart Indian Food Recommender Using TinyLlama, Ollama, and Python In this tutorial, we’ll build a simple yet smart food recommender system that suggests Indian dishes based on the current humidity and temperature values. The system uses a local language model TinyLlama running via Ollama, and Python’s random.randint() function to simulate real-time weather. Why

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Relative Frequency Approach in Probability

Artificial Intelligence, Data Handling, Deep Learning, Machine Learning, Mathematics, Probability and Statistics, Statistics /

Relative Frequency Approach in Probability Data Science and A.I. Lecture Series Author: Bindeshwar Singh Kushwaha   Relative Frequencies and Probabilities So, in general, if \( X \) is a variable having the values \( x_1, x_2, \dots, x_n \) with frequencies \( f_1, f_2, \dots, f_n \), respectively, then: \[ \frac{f_1}{\sum f_i}, \frac{f_2}{\sum f_i}, \dots,

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Deciles

Deciles Calculation and Visualization

Artificial Intelligence, Data Handling, Deep Learning, Machine Learning, Probability and Statistics, Statistics /

Hello everyone! Welcome back to Postnetwork Academy. I’m Bindeshwar Singh, and today we’re going to uncover a key concept in statistics that helps you understand data more deeply—deciles! Have you ever wondered how to break down a data set into smaller, meaningful parts? Deciles allow us to split data into 10 equal sections, giving us

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Data Science and A.I. : Numerical Related to Quartile

Artificial Intelligence, Data Handling, Deep Learning, Generative A., Machine Learning, Probability and Statistics, Statistics /

Numerical Example to Compute Quartile Problem Statement: Given the data set: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, calculate the first quartile, second quartile, and third quartile using the quartile formulas. Understanding Quartiles: Quartiles divide the data set into four equal parts. There are three quartiles, denoted by \( Q_1 \), \(

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Data Science and A.I. – Quartiles, Deciles, and Percentiles

Artificial Intelligence, Data Handling, Deep Learning, Generative A., Generative A. I., Machine Learning, Probability and Statistics, Research and Development, Statistics /

“`html PostNetwork Academy guides us through three crucial statistical measures: Quartiles, Deciles, and Percentiles These measures are used to divide a data distribution into equal parts, making them essential tools in data analysis. Hello everyone! Welcome to another educational post from PostNetwork Academy. I’m Bindeshwar, and before we begin, make sure to follow us on

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Open A. I.

OpenAI Launched Sora Which Can Create Video from Text

Leave a Comment / Deep Learning, Generative A. I., Machine Learning /

OpenAI Launched Sora Which Can Create Video from Text Credit: https://openai.com/sora Suppose you are making a video and there are scenes you can not shoot, do not worry. Sora  an A. I. model  which can generate videos, you  just need type text which will generate video for you. OpenAI’s Sora text-to-video model is capable of

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keras

Train a Simple Deep Learning Network using Keras and Iris DataSet

Leave a Comment / Deep Learning, Machine Learning /

Keras Deep learning framwork is  very popular among researchers and developers which is built at top of Tensorflow. Furthermore, Keras is very handy and easy to use, creating layers and connections is matter of few lines of code.  In this post, I am going to explain, how you can train a simple Deep learning network

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