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Melvyn Koh's Projects

atbash_cipher icon atbash_cipher

This application allows us to encode/decode text using an Atbash Cipher (a particular mono-alphabetic cipher formed by taking the alphabet and mapping it to its reverse).

django-test icon django-test

Source code for my free YouTube series on the Django web framework for Python.

emotions icon emotions

A simple detector of prototypic emotions from facial images captured in video, written in Python.

face_classification icon face_classification

Real-time face detection and emotion/gender classification using fer2013/imdb datasets with a keras CNN model and openCV.

face_recognition icon face_recognition

The world's simplest facial recognition api for Python and the command line

facenet-face-recognition icon facenet-face-recognition

A face recognition demo performed by feeding images of faces recorded by a webcam into a trained FaceNet network to determine the identity of the face

facial-expression-detection icon facial-expression-detection

Facial Expression or Facial Emotion Detector can be used to know whether a person is sad, happy, angry and so on only through his/her face. This Repository can be used to carry out such a task.

fast-face-android icon fast-face-android

πŸ‘¦ Fast-Face : Android App for Real-time Face Landmark Detection. You can check your landmarks in 60ms

fyp_me_detection icon fyp_me_detection

Includes Project 1 and Project 2. Using Tensorflow Python and Keras wrapper to create emotion detection with OpenCV3.

kotlinspringboot icon kotlinspringboot

Create a Spring Boot web backend in Kotlin with the following functionalities. 1. Upload data.csv file from https://www.kaggle.com/carrie1/ecommerce-data/download. 2. List the data from the uploaded data.csv file with pagination. 3. Search data from the uploaded data.csv file. The backend should be responsive and provide sufficient feedback for the frontend to know the progress of the file upload, listing of data and searching of data. Include unit tests.

leetcode icon leetcode

My own implementations on the LeetCode questions

leetcode_30dayschallenge icon leetcode_30dayschallenge

Welcome to the 30-Day LeetCoding Challenge! With many of us around the world being encouraged to stay indoors and work from home, this is the perfect opportunity for you to focus on studying up for future code interviews. In order to help you stay focused, LeetCode is running the 30-Day LeetCoding Challenge for the month of April. A problem will appear here at midnight PDT each day, and you'll have 24 hours to solve it and submit it here on the Explore Card.

lstm_keras icon lstm_keras

competition: https://www.kaggle.com/c/jigsaw-toxic-comment-classification-challenge/overview evaluation: 6 class each binary, column-wise ROC AUC, https://www.kaggle.com/c/jigsaw-toxic-comment-classification-challenge#evaluation dataset: dir data/train.csv, data/test.csv technology: deep learning CNN http://cs231n.github.io/convolutional-networks/ lstm: http://colah.github.io/posts/2015-08-Understanding-LSTMs/, θ‡ͺε·±ε†™ηš„οΌŒζ‰”δΊ†ε°±θ·‘ : https://zhuanlan.zhihu.com/p/35756075 bi-lstm: word embedding: https://towardsdatascience.com/introduction-to-word-embedding-and-word2vec-652d0c2060fa GloVe: embedding/glove.pdf keras: https://keras.io/zh/preprocessing/text/ network: tokenize -> word embedding -> (bi-lstm or lstm) -> CNN (3*3) (or deeper, see lstm_keras.py) -> pooling -> dense net -> 6 binary sigmoid for classify

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