This is a presentation on Handwritten Digit Recognition using Convolutional Neural Networks. Convolutional Neural Networks give better results as compared to conventional Artificial Neural Networks.
Handwritten digit recognition uses convolutional neural networks to recognize handwritten digits from images. The MNIST dataset, containing 60,000 training images and 10,000 test images of handwritten digits, is used to train models. Convolutional neural network architectures for this task typically involve convolutional layers to extract features, followed by flatten and dense layers to classify digits. When trained on the MNIST dataset, convolutional neural networks can accurately recognize handwritten digits in test images.
Deep learning is a type of machine learning that uses neural networks inspired by the human brain. It has been successfully applied to problems like image recognition, speech recognition, and natural language processing. Deep learning requires large datasets, clear goals, computing power, and neural network architectures. Popular deep learning models include convolutional neural networks and recurrent neural networks. Researchers like Geoffry Hinton and companies like Google have advanced the field through innovations that have won image recognition challenges. Deep learning will continue solving harder artificial intelligence problems by learning from massive amounts of data.
Deep learning uses neural networks, which are systems inspired by the human brain. Neural networks learn patterns from large amounts of data through forward and backpropagation. They are constructed of layers including an input layer, hidden layers, and an output layer. Deep learning can learn very complex patterns and has various applications including image classification, machine translation, and more. Recurrent neural networks are useful for sequential data like text and audio. Convolutional neural networks are widely used in computer vision tasks.
The document provides an overview of convolutional neural networks (CNNs) and their layers. It begins with an introduction to CNNs, noting they are a type of neural network designed to process 2D inputs like images. It then discusses the typical CNN architecture of convolutional layers followed by pooling and fully connected layers. The document explains how CNNs work using a simple example of classifying handwritten X and O characters. It provides details on the different layer types, including convolutional layers which identify patterns using small filters, and pooling layers which downsample the inputs.
Virtual Mouse using hand gesture recognitionMuktiKalsekar
This project is to develop a Virtual Mouse using Hand Gesture Recognition. Hand gestures are the most effortless and natural way of communication. The aim is to perform various operations of the cursor. Instead of using more expensive sensors, a simple web camera can identify the gesture and perform the action. It helps the user to interact with a computer without any physical or hardware device to control mouse operation.
Convolutional neural networks (CNNs) learn multi-level features and perform classification jointly and better than traditional approaches for image classification and segmentation problems. CNNs have four main components: convolution, nonlinearity, pooling, and fully connected layers. Convolution extracts features from the input image using filters. Nonlinearity introduces nonlinearity. Pooling reduces dimensionality while retaining important information. The fully connected layer uses high-level features for classification. CNNs are trained end-to-end using backpropagation to minimize output errors by updating weights.
A comprehensive tutorial on Convolutional Neural Networks (CNN) which talks about the motivation behind CNNs and Deep Learning in general, followed by a description of the various components involved in a typical CNN layer. It explains the theory involved with the different variants used in practice and also, gives a big picture of the whole network by putting everything together.
Next, there's a discussion of the various state-of-the-art frameworks being used to implement CNNs to tackle real-world classification and regression problems.
Finally, the implementation of the CNNs is demonstrated by implementing the paper 'Age ang Gender Classification Using Convolutional Neural Networks' by Hassner (2015).
The document discusses convolutional neural networks (CNNs). It begins with an introduction and overview of CNN components like convolution, ReLU, and pooling layers. Convolution layers apply filters to input images to extract features, ReLU introduces non-linearity, and pooling layers reduce dimensionality. CNNs are well-suited for image data since they can incorporate spatial relationships. The document provides an example of building a CNN using TensorFlow to classify handwritten digits from the MNIST dataset.
Handwritten digit recognition uses convolutional neural networks to recognize handwritten digits from images. The MNIST dataset, containing 60,000 training images and 10,000 test images of handwritten digits, is used to train models. Convolutional neural network architectures for this task typically involve convolutional layers to extract features, followed by flatten and dense layers to classify digits. When trained on the MNIST dataset, convolutional neural networks can accurately recognize handwritten digits in test images.
Deep learning is a type of machine learning that uses neural networks inspired by the human brain. It has been successfully applied to problems like image recognition, speech recognition, and natural language processing. Deep learning requires large datasets, clear goals, computing power, and neural network architectures. Popular deep learning models include convolutional neural networks and recurrent neural networks. Researchers like Geoffry Hinton and companies like Google have advanced the field through innovations that have won image recognition challenges. Deep learning will continue solving harder artificial intelligence problems by learning from massive amounts of data.
Deep learning uses neural networks, which are systems inspired by the human brain. Neural networks learn patterns from large amounts of data through forward and backpropagation. They are constructed of layers including an input layer, hidden layers, and an output layer. Deep learning can learn very complex patterns and has various applications including image classification, machine translation, and more. Recurrent neural networks are useful for sequential data like text and audio. Convolutional neural networks are widely used in computer vision tasks.
The document provides an overview of convolutional neural networks (CNNs) and their layers. It begins with an introduction to CNNs, noting they are a type of neural network designed to process 2D inputs like images. It then discusses the typical CNN architecture of convolutional layers followed by pooling and fully connected layers. The document explains how CNNs work using a simple example of classifying handwritten X and O characters. It provides details on the different layer types, including convolutional layers which identify patterns using small filters, and pooling layers which downsample the inputs.
Virtual Mouse using hand gesture recognitionMuktiKalsekar
This project is to develop a Virtual Mouse using Hand Gesture Recognition. Hand gestures are the most effortless and natural way of communication. The aim is to perform various operations of the cursor. Instead of using more expensive sensors, a simple web camera can identify the gesture and perform the action. It helps the user to interact with a computer without any physical or hardware device to control mouse operation.
Convolutional neural networks (CNNs) learn multi-level features and perform classification jointly and better than traditional approaches for image classification and segmentation problems. CNNs have four main components: convolution, nonlinearity, pooling, and fully connected layers. Convolution extracts features from the input image using filters. Nonlinearity introduces nonlinearity. Pooling reduces dimensionality while retaining important information. The fully connected layer uses high-level features for classification. CNNs are trained end-to-end using backpropagation to minimize output errors by updating weights.
A comprehensive tutorial on Convolutional Neural Networks (CNN) which talks about the motivation behind CNNs and Deep Learning in general, followed by a description of the various components involved in a typical CNN layer. It explains the theory involved with the different variants used in practice and also, gives a big picture of the whole network by putting everything together.
Next, there's a discussion of the various state-of-the-art frameworks being used to implement CNNs to tackle real-world classification and regression problems.
Finally, the implementation of the CNNs is demonstrated by implementing the paper 'Age ang Gender Classification Using Convolutional Neural Networks' by Hassner (2015).
The document discusses convolutional neural networks (CNNs). It begins with an introduction and overview of CNN components like convolution, ReLU, and pooling layers. Convolution layers apply filters to input images to extract features, ReLU introduces non-linearity, and pooling layers reduce dimensionality. CNNs are well-suited for image data since they can incorporate spatial relationships. The document provides an example of building a CNN using TensorFlow to classify handwritten digits from the MNIST dataset.
Handwritten Digit Recognition and performance of various modelsation[autosaved]SubhradeepMaji
This document presents a comparison of different convolutional neural network (CNN) models for handwritten number recognition that vary by layers. The models are trained on the MNIST dataset. A basic CNN model with convolutional, pooling, and fully connected layers is described. Models with different numbers and placements of layers are tested, and their training accuracy, validation accuracy, and test loss are compared. The optimal model is found to have two dropout layers and achieves 99.64% validation accuracy and the lowest test loss. User input can be tested on the model, and future work may involve improving accuracy for different writing styles.
A fast-paced introduction to Deep Learning concepts, such as activation functions, cost functions, back propagation, and then a quick dive into CNNs. Basic knowledge of vectors, matrices, and derivatives is helpful in order to derive the maximum benefit from this session.
This document provides an introduction to neural networks, including their basic components and types. It discusses neurons, activation functions, different types of neural networks based on connection type, topology, and learning methods. It also covers applications of neural networks in areas like pattern recognition and control systems. Neural networks have advantages like the ability to learn from experience and handle incomplete information, but also disadvantages like the need for training and high processing times for large networks. In conclusion, neural networks can provide more human-like artificial intelligence by taking approximation and hard-coded reactions out of AI design, though they still require fine-tuning.
Machine learning and its applications was a gentle introduction to machine learning presented by Dr. Ganesh Neelakanta Iyer. The presentation covered an introduction to machine learning, different types of machine learning problems including classification, regression, and clustering. It also provided examples of applications of machine learning at companies like Facebook, Google, and McDonald's. The presentation concluded with discussing the general machine learning framework and steps involved in working with machine learning problems.
GUI based handwritten digit recognition using CNNAbhishek Tiwari
This project is to create a model which can recognize the digits as well as also to create GUI which is user friendly i.e. user can draw the digit on it and will get appropriate output.
Handwritten Digit Recognition using Convolutional Neural NetworksIRJET Journal
This document discusses using a convolutional neural network called LeNet to perform handwritten digit recognition on the MNIST dataset. It begins with an abstract that outlines using LeNet, a type of convolutional network, to accurately classify handwritten digits from 0 to 9. It then provides background on convolutional networks and how they can extract and utilize features from images to classify patterns with translation and scaling invariance. The document implements LeNet using the Keras deep learning library in Python to classify images from the MNIST dataset, which contains labeled images of handwritten digits. It analyzes the architecture of LeNet and how convolutional and pooling layers are used to extract features that are passed to fully connected layers for classification.
The presentation provides an overview of machine learning, including its history, definitions, applications and algorithms. It discusses how machine learning systems are trained and tested, and how performance is evaluated. The key points are that machine learning involves computers learning from experience to improve their abilities, it is used in applications that require prediction, classification and pattern detection, and common algorithms include supervised, unsupervised and reinforcement learning.
The presentation is made on CNN's which is explained using the image classification problem, the presentation was prepared in perspective of understanding computer vision and its applications. I tried to explain the CNN in the most simple way possible as for my understanding. This presentation helps the beginners of CNN to have a brief idea about the architecture and different layers in the architecture of CNN with the example. Please do refer the references in the last slide for a better idea on working of CNN. In this presentation, I have also discussed the different types of CNN(not all) and the applications of Computer Vision.
This document provides an overview of deep learning in neural networks. It defines deep learning as using artificial neural networks with multiple levels that learn higher-level concepts from lower-level ones. It describes how deep learning networks have many layers that build improved feature spaces, with earlier layers learning simple features that are combined in later layers. Deep learning networks are categorized as unsupervised or supervised, or hybrids. Common deep learning architectures like deep neural networks, deep belief networks, convolutional neural networks, and deep Boltzmann machines are also described. The document explains why GPUs are useful for deep learning due to their throughput-oriented design that speeds up model training.
This document describes a technique for Sinhala handwritten character recognition using feature extraction and an artificial neural network. The methodology includes preprocessing, segmentation, feature extraction based on character geometry, and classification using an ANN. Features like starters, intersections, and zoning are extracted from segmented characters. The ANN was trained on these feature vectors and tested on 170 characters, achieving an accuracy of 82.1%. While the technique showed some success, the author notes room for improvement, such as making the system more font-independent and improving feature extraction and character separation.
Hand gesture recognition system(FYP REPORT)Afnan Rehman
This document is a final year project report submitted by three students - Afnan Ur Rehman, Haseeb Anser Iqbal, and Anwaar Ul Haq - for their bachelor's degree in computer science. The report describes the development of a hand gesture recognition system using computer vision and machine learning techniques. Key aspects of the project include image acquisition using a webcam, preprocessing the images using techniques like filtering and noise removal, detecting and cropping the hand region, extracting HU moments features, training a classifier on sample gesture images, and classifying new images using KNN. The system is also able to translate recognized gestures to speech using text-to-speech.
The document introduces artificial intelligence, machine learning, and deep learning. It discusses supervised, unsupervised, and reinforced learning techniques. Examples of applications discussed include image recognition, natural language processing, and virtual assistants. The document also notes that some AI systems have developed their own internal languages when interacting without human supervision.
In this presentation we discuss the convolution operation, the architecture of a convolution neural network, different layers such as pooling etc. This presentation draws heavily from A Karpathy's Stanford Course CS 231n
Part 1 of the Deep Learning Fundamentals Series, this session discusses the use cases and scenarios surrounding Deep Learning and AI; reviews the fundamentals of artificial neural networks (ANNs) and perceptrons; discuss the basics around optimization beginning with the cost function, gradient descent, and backpropagation; and activation functions (including Sigmoid, TanH, and ReLU). The demos included in these slides are running on Keras with TensorFlow backend on Databricks.
The document discusses using a convolutional neural network to recognize handwritten digits from the MNIST database. It describes training a CNN on the MNIST training dataset, consisting of 60,000 examples, to classify images of handwritten digits from 0-9. The CNN architecture uses two convolutional layers followed by a flatten layer and fully connected layer with softmax activation. The model achieves high accuracy on the MNIST test set. However, the document notes that the model may struggle with color images or images with more complex backgrounds compared to the simple black and white MNIST digits. Improving preprocessing and adapting the model for more complex real-world images is suggested for future work.
On-line handwriting recognition involves converting handwriting as it is written on a digitizer to digital text, while off-line recognition converts static images of handwriting. Both techniques face challenges from variability in handwriting styles. Current methods use feature extraction and neural networks, but do not match human-level recognition abilities. Handwriting recognition remains an important but difficult area of research.
This document summarizes a seminar presentation on machine learning. It defines machine learning as applications of artificial intelligence that allow computers to learn automatically from data without being explicitly programmed. It discusses three main algorithms of machine learning: supervised learning, unsupervised learning, and reinforcement learning. Supervised learning uses labelled training data, unsupervised learning finds patterns in unlabelled data, and reinforcement learning involves learning through rewards and punishments. Examples applications discussed include data mining, natural language processing, image recognition, and expert systems.
An autoencoder is an artificial neural network that is trained to copy its input to its output. It consists of an encoder that compresses the input into a lower-dimensional latent-space encoding, and a decoder that reconstructs the output from this encoding. Autoencoders are useful for dimensionality reduction, feature learning, and generative modeling. When constrained by limiting the latent space or adding noise, autoencoders are forced to learn efficient representations of the input data. For example, a linear autoencoder trained with mean squared error performs principal component analysis.
Deep Learning - Overview of my work IIMohamed Loey
Deep Learning Machine Learning MNIST CIFAR 10 Residual Network AlexNet VGGNet GoogleNet Nvidia Deep learning (DL) is a hierarchical structure network which through simulates the human brain’s structure to extract the internal and external input data’s features
Build a simple image recognition system with tensor flowDebasisMohanty37
A perfect working model to detect mnist dataset using TensorFlow.
Dataset:
http://yann.lecun.com/exdb/mnist/
For code check the below GitHub links:
https://github.com/Jitudebz/psychic-pancake
A Survey of Convolutional Neural NetworksRimzim Thube
Convolutional neural networks (CNNs) are widely used for tasks like image classification, object detection, and face recognition. CNNs extract features from data using convolutional structures and are inspired by biological visual perception. Early CNNs include LeNet for handwritten text recognition and AlexNet which introduced ReLU and dropout to improve performance. Newer CNNs like VGGNet, GoogLeNet, ResNet and MobileNets aim to improve accuracy while reducing parameters. CNNs require activation functions, loss functions, and optimizers to learn from data during training. They have various applications in domains like computer vision, natural language processing and time series forecasting.
Handwritten Digit Recognition and performance of various modelsation[autosaved]SubhradeepMaji
This document presents a comparison of different convolutional neural network (CNN) models for handwritten number recognition that vary by layers. The models are trained on the MNIST dataset. A basic CNN model with convolutional, pooling, and fully connected layers is described. Models with different numbers and placements of layers are tested, and their training accuracy, validation accuracy, and test loss are compared. The optimal model is found to have two dropout layers and achieves 99.64% validation accuracy and the lowest test loss. User input can be tested on the model, and future work may involve improving accuracy for different writing styles.
A fast-paced introduction to Deep Learning concepts, such as activation functions, cost functions, back propagation, and then a quick dive into CNNs. Basic knowledge of vectors, matrices, and derivatives is helpful in order to derive the maximum benefit from this session.
This document provides an introduction to neural networks, including their basic components and types. It discusses neurons, activation functions, different types of neural networks based on connection type, topology, and learning methods. It also covers applications of neural networks in areas like pattern recognition and control systems. Neural networks have advantages like the ability to learn from experience and handle incomplete information, but also disadvantages like the need for training and high processing times for large networks. In conclusion, neural networks can provide more human-like artificial intelligence by taking approximation and hard-coded reactions out of AI design, though they still require fine-tuning.
Machine learning and its applications was a gentle introduction to machine learning presented by Dr. Ganesh Neelakanta Iyer. The presentation covered an introduction to machine learning, different types of machine learning problems including classification, regression, and clustering. It also provided examples of applications of machine learning at companies like Facebook, Google, and McDonald's. The presentation concluded with discussing the general machine learning framework and steps involved in working with machine learning problems.
GUI based handwritten digit recognition using CNNAbhishek Tiwari
This project is to create a model which can recognize the digits as well as also to create GUI which is user friendly i.e. user can draw the digit on it and will get appropriate output.
Handwritten Digit Recognition using Convolutional Neural NetworksIRJET Journal
This document discusses using a convolutional neural network called LeNet to perform handwritten digit recognition on the MNIST dataset. It begins with an abstract that outlines using LeNet, a type of convolutional network, to accurately classify handwritten digits from 0 to 9. It then provides background on convolutional networks and how they can extract and utilize features from images to classify patterns with translation and scaling invariance. The document implements LeNet using the Keras deep learning library in Python to classify images from the MNIST dataset, which contains labeled images of handwritten digits. It analyzes the architecture of LeNet and how convolutional and pooling layers are used to extract features that are passed to fully connected layers for classification.
The presentation provides an overview of machine learning, including its history, definitions, applications and algorithms. It discusses how machine learning systems are trained and tested, and how performance is evaluated. The key points are that machine learning involves computers learning from experience to improve their abilities, it is used in applications that require prediction, classification and pattern detection, and common algorithms include supervised, unsupervised and reinforcement learning.
The presentation is made on CNN's which is explained using the image classification problem, the presentation was prepared in perspective of understanding computer vision and its applications. I tried to explain the CNN in the most simple way possible as for my understanding. This presentation helps the beginners of CNN to have a brief idea about the architecture and different layers in the architecture of CNN with the example. Please do refer the references in the last slide for a better idea on working of CNN. In this presentation, I have also discussed the different types of CNN(not all) and the applications of Computer Vision.
This document provides an overview of deep learning in neural networks. It defines deep learning as using artificial neural networks with multiple levels that learn higher-level concepts from lower-level ones. It describes how deep learning networks have many layers that build improved feature spaces, with earlier layers learning simple features that are combined in later layers. Deep learning networks are categorized as unsupervised or supervised, or hybrids. Common deep learning architectures like deep neural networks, deep belief networks, convolutional neural networks, and deep Boltzmann machines are also described. The document explains why GPUs are useful for deep learning due to their throughput-oriented design that speeds up model training.
This document describes a technique for Sinhala handwritten character recognition using feature extraction and an artificial neural network. The methodology includes preprocessing, segmentation, feature extraction based on character geometry, and classification using an ANN. Features like starters, intersections, and zoning are extracted from segmented characters. The ANN was trained on these feature vectors and tested on 170 characters, achieving an accuracy of 82.1%. While the technique showed some success, the author notes room for improvement, such as making the system more font-independent and improving feature extraction and character separation.
Hand gesture recognition system(FYP REPORT)Afnan Rehman
This document is a final year project report submitted by three students - Afnan Ur Rehman, Haseeb Anser Iqbal, and Anwaar Ul Haq - for their bachelor's degree in computer science. The report describes the development of a hand gesture recognition system using computer vision and machine learning techniques. Key aspects of the project include image acquisition using a webcam, preprocessing the images using techniques like filtering and noise removal, detecting and cropping the hand region, extracting HU moments features, training a classifier on sample gesture images, and classifying new images using KNN. The system is also able to translate recognized gestures to speech using text-to-speech.
The document introduces artificial intelligence, machine learning, and deep learning. It discusses supervised, unsupervised, and reinforced learning techniques. Examples of applications discussed include image recognition, natural language processing, and virtual assistants. The document also notes that some AI systems have developed their own internal languages when interacting without human supervision.
In this presentation we discuss the convolution operation, the architecture of a convolution neural network, different layers such as pooling etc. This presentation draws heavily from A Karpathy's Stanford Course CS 231n
Part 1 of the Deep Learning Fundamentals Series, this session discusses the use cases and scenarios surrounding Deep Learning and AI; reviews the fundamentals of artificial neural networks (ANNs) and perceptrons; discuss the basics around optimization beginning with the cost function, gradient descent, and backpropagation; and activation functions (including Sigmoid, TanH, and ReLU). The demos included in these slides are running on Keras with TensorFlow backend on Databricks.
The document discusses using a convolutional neural network to recognize handwritten digits from the MNIST database. It describes training a CNN on the MNIST training dataset, consisting of 60,000 examples, to classify images of handwritten digits from 0-9. The CNN architecture uses two convolutional layers followed by a flatten layer and fully connected layer with softmax activation. The model achieves high accuracy on the MNIST test set. However, the document notes that the model may struggle with color images or images with more complex backgrounds compared to the simple black and white MNIST digits. Improving preprocessing and adapting the model for more complex real-world images is suggested for future work.
On-line handwriting recognition involves converting handwriting as it is written on a digitizer to digital text, while off-line recognition converts static images of handwriting. Both techniques face challenges from variability in handwriting styles. Current methods use feature extraction and neural networks, but do not match human-level recognition abilities. Handwriting recognition remains an important but difficult area of research.
This document summarizes a seminar presentation on machine learning. It defines machine learning as applications of artificial intelligence that allow computers to learn automatically from data without being explicitly programmed. It discusses three main algorithms of machine learning: supervised learning, unsupervised learning, and reinforcement learning. Supervised learning uses labelled training data, unsupervised learning finds patterns in unlabelled data, and reinforcement learning involves learning through rewards and punishments. Examples applications discussed include data mining, natural language processing, image recognition, and expert systems.
An autoencoder is an artificial neural network that is trained to copy its input to its output. It consists of an encoder that compresses the input into a lower-dimensional latent-space encoding, and a decoder that reconstructs the output from this encoding. Autoencoders are useful for dimensionality reduction, feature learning, and generative modeling. When constrained by limiting the latent space or adding noise, autoencoders are forced to learn efficient representations of the input data. For example, a linear autoencoder trained with mean squared error performs principal component analysis.
Deep Learning - Overview of my work IIMohamed Loey
Deep Learning Machine Learning MNIST CIFAR 10 Residual Network AlexNet VGGNet GoogleNet Nvidia Deep learning (DL) is a hierarchical structure network which through simulates the human brain’s structure to extract the internal and external input data’s features
Build a simple image recognition system with tensor flowDebasisMohanty37
A perfect working model to detect mnist dataset using TensorFlow.
Dataset:
http://yann.lecun.com/exdb/mnist/
For code check the below GitHub links:
https://github.com/Jitudebz/psychic-pancake
A Survey of Convolutional Neural NetworksRimzim Thube
Convolutional neural networks (CNNs) are widely used for tasks like image classification, object detection, and face recognition. CNNs extract features from data using convolutional structures and are inspired by biological visual perception. Early CNNs include LeNet for handwritten text recognition and AlexNet which introduced ReLU and dropout to improve performance. Newer CNNs like VGGNet, GoogLeNet, ResNet and MobileNets aim to improve accuracy while reducing parameters. CNNs require activation functions, loss functions, and optimizers to learn from data during training. They have various applications in domains like computer vision, natural language processing and time series forecasting.
This document discusses using artificial neural networks for hand gesture recognition. It introduces gesture recognition and ANNs, describing how ANNs can be used for gesture recognition by being adaptive systems that change structure based on information flow. The document outlines training ANNs using feedforward and backpropagation algorithms in MATLAB for gesture recognition. It also provides steps of the recognition process and discusses advantages like learning without reprogramming and disadvantages like needing training.
(1) The document discusses using autoencoders for image classification. Autoencoders are neural networks trained to encode inputs so they can be reconstructed, learning useful features in the process. (2) Stacked autoencoders and convolutional autoencoders are evaluated on the MNIST handwritten digit dataset. Greedy layerwise training is used to construct deep pretrained networks. (3) Visualization of hidden unit activations shows the features learned by the autoencoders. The main difference between autoencoders and convolutional networks is that convolutional networks have more hardwired topological constraints due to the convolutional and pooling operations.
Teach a neural network to read handwritingVipul Kaushal
This document discusses teaching a neural network to read handwritten digits using the MNIST dataset. It uses a deep convolutional neural network with convolutional layers to extract features from images, max pooling to enhance dominant features, flatten and dense layers, and softmax activation. The model is compiled and trained using the Adam optimizer on 60,000 training images over multiple epochs, and is tested on 10,000 testing images to classify handwritten digits. Problems in choosing the architecture and loading the MNIST format dataset were addressed by referring to cited articles and resources.
The document discusses video classification using deep neural networks. It provides an overview of video classification and how it is similar to image classification. It then discusses early neural networks like McCulloch-Pitts neurons and perceptrons that were inspired by the human brain. It moves on to explain convolutional neural networks and popular CNN models like LeNet, AlexNet, VGGNet, and GoogleNet that were important for video and image classification. The document also discusses object detection methods like R-CNN, Fast R-CNN, and Faster R-CNN and the single stage detector SSD. Key concepts discussed include anchor boxes, intersection over union, and the SSD architecture.
The document presents a project on sentiment analysis of human emotions, specifically focusing on detecting emotions from babies' facial expressions using deep learning. It involves loading a facial expression dataset, training a convolutional neural network model to classify 7 emotions (anger, disgust, fear, happy, sad, surprise, neutral), and evaluating the model on test data. An emotion detection application is implemented using the trained model to analyze emotions in real-time images from a webcam with around 60-70% accuracy on random images.
A Neural Network that Understands HandwritingShivam Sawhney
This document summarizes a convolutional neural network (CNN) that was implemented using Keras to recognize handwritten digits from 0-9. The CNN model contains steps for convolution, ReLU activation, pooling, flattening, and fully connected layers. The model was trained on a dataset of handwritten digits and achieved 97% accuracy on the test set, demonstrating CNNs capabilities for image classification tasks. The project utilized common deep learning libraries like NumPy, Keras, TensorFlow and followed typical CNN architecture of feature extraction via convolution and pooling layers followed by classification with dense layers.
Convolutional neural networks (CNNs) are a type of neural network used for processing grid-like data such as images. CNNs have an input layer, multiple hidden layers, and an output layer. The hidden layers typically include convolutional layers that extract features, pooling layers that reduce dimensionality, and fully connected layers similar to regular neural networks. CNNs are commonly used for computer vision tasks like image classification and object detection due to their ability to learn spatial hierarchies of features in the data. They have applications in areas like facial recognition, document analysis, and climate modeling.
Convolutional neural networks can be used for handwritten digit recognition. They employ replicated feature detectors with shared weights to achieve translation equivariance. Pooling layers provide some translation invariance while reducing the number of inputs to subsequent layers. The LeNet architecture developed by Yann LeCun used these techniques along with multiple hidden layers and achieved an error rate of around 1% on handwritten digit recognition. Dropout regularization helps convolutional neural networks generalize well when applied to large scale tasks like ImageNet classification by preventing complex co-adaptations between hidden units.
This document discusses artificial neural networks. It defines neural networks as computational models inspired by the human brain that are used for tasks like classification, clustering, and pattern recognition. The key points are:
- Neural networks contain interconnected artificial neurons that can perform complex computations. They are inspired by biological neurons in the brain.
- Common neural network types are feedforward networks, where data flows from input to output, and recurrent networks, which contain feedback loops.
- Neural networks are trained using algorithms like backpropagation that minimize error by adjusting synaptic weights between neurons.
- Neural networks have many applications including voice recognition, image recognition, robotics and more due to their ability to learn from large amounts of data.
This document discusses artificial neural networks. It defines neural networks as computational models inspired by the human brain that are used for tasks like classification, clustering, and pattern recognition. The key points are:
- Neural networks contain interconnected artificial neurons that can perform complex computations. They are inspired by biological neurons in the brain.
- Common neural network types are feedforward networks, where data flows from input to output, and recurrent networks, which contain feedback loops.
- Neural networks are trained using algorithms like backpropagation that minimize error by adjusting synaptic weights between neurons.
- Neural networks have various applications including voice recognition, image recognition, and robotics due to their ability to learn from large amounts of data.
This document provides an introduction to deep learning. It defines artificial intelligence, machine learning, data science, and deep learning. Machine learning is a subfield of AI that gives machines the ability to improve performance over time without explicit human intervention. Deep learning is a subfield of machine learning that builds artificial neural networks using multiple hidden layers, like the human brain. Popular deep learning techniques include convolutional neural networks, recurrent neural networks, and autoencoders. The document discusses key components and hyperparameters of deep learning models.
This document discusses using artificial neural networks for image compression and decompression. It begins with an introduction explaining the need for image compression due to large file sizes. It then describes biologically inspired neurons and artificial neural networks. The document outlines the backpropagation algorithm, various compression techniques, and how neural networks were implemented in MATLAB and on an FPGA board for this project. It discusses the advantages of neural networks for this application, some disadvantages, and examples of applications. In conclusion, it states that the design was successfully implemented on an FPGA board and input and output values were similar, showing the neural network approach works for image compression.
Automatic Attendace using convolutional neural network Face Recognitionvatsal199567
Automatic Attendance System will recognize the face of the student through the camera in the class and mark the attendance. It was built in Python with Machine Learning.
This document provides an overview of convolutional neural networks (CNNs) and describes a research study that used a two-dimensional heterogeneous CNN (2D-hetero CNN) for mobile health analytics. The study developed a 2D-hetero CNN model to assess fall risk using motion sensor data from 5 sensor locations on participants. The model extracts low-level local features using convolutional layers and integrates them into high-level global features to classify fall risk. The 2D-hetero CNN was evaluated against feature-based approaches and other CNN architectures and performed ablation analysis.
This document provides an overview of artificial neural networks, including vanilla neural networks, deep neural networks, recurrent neural networks, and convolutional neural networks. It discusses gradient descent, activation functions, and optimization algorithms. Specific deep learning topics covered include the ImageNet contest, GPU acceleration of deep learning, batch normalization, LeNet-5, gated recurrent units, and long short term memory networks. The document serves to introduce fundamental concepts in deep learning.
This document discusses using a cascade correlation neural network (CCNN) to capture the drawing style of a caricaturist in order to automatically generate caricatures. It proposes extracting facial components from original images, mean faces, and caricatures to create training data. The CCNN is trained using this data to learn the exaggerations made by the caricaturist. Experiments show the CCNN can accurately predict nonlinear exaggerations to components. The approach aims to address limitations of existing caricature generation systems by learning an individual artist's unique style through training on their deformations of facial objects.
Introduction to computer vision with Convoluted Neural NetworksMarcinJedyk
Introduction to computer vision with Convoluted Neural Networks - going over history of CNNs, describing basic concepts such as convolution and discussing applications of computer vision and image recognition technologies
Similar to Handwritten Digit Recognition(Convolutional Neural Network) PPT (20)
An In-Depth Exploration of Natural Language Processing: Evolution, Applicatio...DharmaBanothu
Natural language processing (NLP) has
recently garnered significant interest for the
computational representation and analysis of human
language. Its applications span multiple domains such
as machine translation, email spam detection,
information extraction, summarization, healthcare,
and question answering. This paper first delineates
four phases by examining various levels of NLP and
components of Natural Language Generation,
followed by a review of the history and progression of
NLP. Subsequently, we delve into the current state of
the art by presenting diverse NLP applications,
contemporary trends, and challenges. Finally, we
discuss some available datasets, models, and
evaluation metrics in NLP.
Sri Guru Hargobind Ji - Bandi Chor Guru.pdfBalvir Singh
Sri Guru Hargobind Ji (19 June 1595 - 3 March 1644) is revered as the Sixth Nanak.
• On 25 May 1606 Guru Arjan nominated his son Sri Hargobind Ji as his successor. Shortly
afterwards, Guru Arjan was arrested, tortured and killed by order of the Mogul Emperor
Jahangir.
• Guru Hargobind's succession ceremony took place on 24 June 1606. He was barely
eleven years old when he became 6th Guru.
• As ordered by Guru Arjan Dev Ji, he put on two swords, one indicated his spiritual
authority (PIRI) and the other, his temporal authority (MIRI). He thus for the first time
initiated military tradition in the Sikh faith to resist religious persecution, protect
people’s freedom and independence to practice religion by choice. He transformed
Sikhs to be Saints and Soldier.
• He had a long tenure as Guru, lasting 37 years, 9 months and 3 days
Sachpazis_Consolidation Settlement Calculation Program-The Python Code and th...Dr.Costas Sachpazis
Consolidation Settlement Calculation Program-The Python Code
By Professor Dr. Costas Sachpazis, Civil Engineer & Geologist
This program calculates the consolidation settlement for a foundation based on soil layer properties and foundation data. It allows users to input multiple soil layers and foundation characteristics to determine the total settlement.
This is an overview of my current metallic design and engineering knowledge base built up over my professional career and two MSc degrees : - MSc in Advanced Manufacturing Technology University of Portsmouth graduated 1st May 1998, and MSc in Aircraft Engineering Cranfield University graduated 8th June 2007.
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2. MAIN GOAL & APPLICATIONS
• Handwritten Digit Recognition is used to
recognize the Digits which are written by
hand.
• A handwritten digit recognition system is used
to visualize artificial neural networks.
• It is already widely used in the automatic
processing of bank cheques, postal addresses,
in mobile phones etc
3. •Scientists believe that the most intelligent
device is the Human Brain.
•There is no computer which can beat the level
of efficiency of human brain. These Inefficiencies
of the computer has lead to evolution of
“Artificial Neural Network”.
•They differ from conventional systems in the
sense that rather than being programmed these
system learn to recognize pattern.
Introduction
4. What are Neural Networks?
• Artificial neural networks, usually called neural networks
(NNs), are interconnected systems composed of many simple
processing elements (neurons) operating in parallel whose
function is determined by-
1) Network Structure
2) Connection Strengths
3) The Processing performed
at Computing elements or
nodes.
6. Training Dataset
• Training of the network is done by a dataset
named MNIST dataset.
• MNIST dataset has a training set of 60,000
examples, and a test set of 10,000 examples.
• All the images in the dataset are of 28x28
pixels.
7. •It is a good database for people who want to try learning
techniques and pattern recognition methods on real-world
data while spending minimal efforts on preprocessing and
formatting.
8. Why Convolutions?
Convolution is a simple mathematical operation
between two matrices in which one is multiplied to
the other element wise and sum of all these
multiplications is calculated.
Convolutions are performed for various reasons-
• Convolutions provide better feature extraction
• They save a lot of computation compared to ANNs.
• Less number of parameters are created than those in
pure fully connected layers.
• Due to less number of required parameters,
lesser fully connected layers are needed.
10. Images are taken using webcam
• To take images from webcam, opencv
functions have been used
11. Pre-Processing of images
Pre-processing of images is done using a python library called Opencv.
It has certain functions which can be implemented to make necessary
changes in the image before passing them to network.
• Gaussian blur
– Gaussian blur is a function for smoothening an image.
• Adaptive-Threshold
– In Adaptive-Threshold, the algorithm calculate the threshold for a small
regions of the image. So we get different thresholds for different regions of
the same image and it gives us better results for images with varying
illumination.
• Dilation
– Dilation is done to make the digits bigger.
– Dilation is very useful in cases where digits have holes as noises in them
• Erosion
– Erosion is done to make the digits smaller or thinner
– This reduces the noise as thin noises get vanished after erosion.
14. Segmentation
• Segmentation of the image is done by the
concept contours in Opencv
• Contours
– Contours can be explained as simply curve joining
all the continuous points, having same color or
intensity
– The contours are a useful tool for shape analysis
and object detection and recognition.
16. Convolutional Neural Network
Architecture
This model’s architecture consists of three main parts, two convolutional
blocks and one fully connected neural network layer.
The inputs to this model are 28x28 images.
First Convolutional Block:
A 28x28 image is taken as input to this block. A padding of 2 units is added to
the image so as to retain its dimensions after a convolution operation on the
image by 16 5x5 filters/kernels.
The output of the convolution gives 16x28x28 volume, which is then input to
a ReLU activation function followed by a MaxPool operation. ReLU activation
is used to introduce some non-linearity.
This block outputs a 16x14x14 volume.
17. Second Convolutional Block
First step is again a convolution operation on 16x14x14 by 32
5x5kernels with padding of 2 units, obtaining a 32x14x14
volume.
It is passed through a ReLU activation followed by a MaxPool
operation.
Second convolutional block outputs a 32x7x7 volume.
Fully connected Neural Layer:
Here, a singe hidden layer of 10 nodes is taken as the fully
connected layer.
Finally, the output of the fully connected layer is passed to a
softmax function to obtain the output result of recognition.
18. Conclusion
• The handwritten digit recognition using
convolutional neural network has proved to
be of a fairly good efficiency.
• It works better than any other algorithm,
including artificial neural networks.