# Logistic-Regression-from-scratch

Numpy implementation of Logistic Regression (w/o explicit ML libraries, such as Pytorch or Tensorflow)

## Computing Gradients (Computing Partial Derivatives) -details

### Python Code for Computing Gradient

        def compute_grad(self, x, y, weight, logit):
"""
N : # of minibatch data
D : # of features

Inputs:
x : (N, D), input data
y : (N, ), label for each data
weight : (D, 1), Weight matrix of classifier
logit: (N, 1), logits for N data

Returns:
gradient of weight: (D, 1), Gradient of weight to be applied (dL/dW)

Description:
Given input, label, weight, logit, compute gradient of weight.
"""

num_data, num_feat = x.shape

y = np.expand_dims(y, axis=1)

score = np.dot(x,self.W)
score = self._sigmoid(score)
temp = (score -y).reshape(1,-1)

return grad_weight

## Sample Datase

#### Breast Cancer - for Logistic Regression (binary classes) #### EMNIST - for SoftmaxClassifier (more than two classes) ## Reference

SungKyunKwan University, College of Computing, SWE3050_41

### My Logistic app project. Meant to be for company-internal use and my own portfolio. Much to be done (And hopefully i have enough will to finish it.)

Logistec_Main My Logistic app project. Meant to be for company-internal use and my own portfolio. Much to be done (And hopefully i have enough will to

Apr 18, 2022

### Official PyTorch implementation for ״ lassification-Regression for Chart Comprehension״

[ECCV 2022] Classification-Regression for Chart Comprehension [Project Page | Paper (arxiv)] Published in European Conference on Computer Vision 2022.

Sep 13, 2022

### Pytoydl: A toy deep learning framework built upon numpy.

Documents: https://pytoydl.readthedocs.io/zh/latest/ Pytoydl A toy deep learning framework built upon numpy. You can star this repository to keep trac

Sep 19, 2022

### Image to wave art converter using python with the help of OpenCV & Numpy modules

wave art Generate wave art for an image. Requirements: OpenCV pip install opencv-python Numpy pip install numpy Usage python main.py [-h] --image_path

Sep 8, 2022

### Newton Fractals with Numpy and Matplotlib.

Newton Fractals Newton Fractals with Numpy and Matplotlib. Contains: utils.py contains two functions capable of calculate the root for an $x_0$ and th

May 27, 2022

### Visual representation of scalar and vector fields using Numpy's contour and quiver functions

Visual representation of scalar and vector fields using Numpy's contour and quiver functions. Comparison of vector field computed using Numpy's gradient function with the same vector field plotted using analytically deduced expressions for the gradient. Wrote a program for plotting vector field arrows originating only from contour lines.

Aug 24, 2022

### Building a Neural Network from Scratch (no Tensorflow/Pytorch, just numpy & math)

Handwritten Digit Recognition Building a Neural Network from Scratch (no Tensorflow/Pytorch, just numpy & math) General Overview During this semester,

Sep 5, 2022

### cuNumeric is a Legate library that aims to provide a distributed and accelerated drop-in replacement for the NumPy API on top of the Legion runtime

cuNumeric cuNumeric is a Legate library that aims to provide a distributed and accelerated drop-in replacement for the NumPy API on top of the Legion

Sep 25, 2022

### A backpropagation algorithm written using Numpy.

Backpropagation A backpropagation algorithm for binary classification written using Numpy. This algorithm is applicable to data sets of size (m, n), b

Jun 26, 2022
###### Hyeonho, Jeong ###### Logistic Regression for Iris Dataset

I implement Logistic Regression algorithm and apply this to Iris dataset. I didn't use sklearn.LogisticRegression but implement the algorithm in detail, which may be helpful to understand the principle of Logistic Regression.

1 Mar 28, 2022
###### A convolutional neural network implementation using numpy with no ML libraries. Used here to solve the MNIST handwritten digit classification problem.

MNISTCNN A convolutional neural network implementation using numpy with no ML libraries. Used here to solve the MNIST handwritten digit classification

2 Jun 5, 2022
###### Numpy implementation of Deep Neural Network (MLP, Convolution) (w/o using ML/DL libraries)

Neural-Network-from-scratch Numpy implementation of Deep Neural Network (MLP, Convolution) (without Tensorflow, Pytorch) Implemented Layers ✔️ Fully C

1 Sep 15, 2022
###### Simple Automated Facerecognition Attendance Management System programmed using python using the libraries OpenCV, Numpy, OS, Pandas, Tkinter

This Is a Simple Automated Facerecognition Attendance Management System programmed using python using the libraries OpenCV, Numpy, OS, Pandas, Tkinter, mysql.connector, csv, Datetime etc... It the attendence data it stored and managed in a MYSQL database.

3 Aug 21, 2022
###### Use Python along with the numpy, matplotlib, sounddevice and scipy libraries to create a song and simulate the process of removing noise from it

Signals-Song-Creation-and-Noise-Cancellation In this project, we use the Python programming language along with the numpy, matplotlib, sounddevice and

2 Jun 15, 2022
###### Human activity recognition system using Mediapipe, numpy and OpenCV libraries.

Human-Activity-Recognition-System Human activity recognition system using Mediapipe, numpy and OpenCV libraries. Problem Statement :- The problem stat

2 Sep 10, 2022
###### Predict prices of houses to sell using Linear Regression with Multiple variables or Multivariate Linear Regression.

sell-house-price Predict prices of houses to sell using Linear Regression with Multiple variables or Multivariate Linear Regression. Dataset The file

1 Feb 23, 2022
###### DoWhy is a Python library for causal inference that supports explicit modeling and testing of causal assumptions

DoWhy is a Python library for causal inference that supports explicit modeling and testing of causal assumptions. DoWhy is based on a unified language for causal inference, combining causal graphical models and potential outcomes frameworks.

5.2k Sep 24, 2022
###### [ECCV'22 Poster] Explicit Image Caption Editing

Explicit Image Caption Editing This repository contains the datasets and reference code for the paper Explicit Image Caption Editing accpeted to ECCV

15 Aug 26, 2022

5 Sep 20, 2022