Search Results for author: Shivkumar Chandrasekaran

Found 18 papers, 4 papers with code

CNNs Avoid Curse of Dimensionality by Learning on Patches

no code implementations22 May 2022 Vamshi C. Madala, Shivkumar Chandrasekaran, Jason Bunk

A priori theories explaining the generalization performances of deep neural networks have mostly ignored the convolutionality aspect and do not specify why CNNs are able to seemingly overcome curse of dimensionality on computer vision tasks like image classification where the image dimensions are in thousands.

Data Augmentation Image Classification

OMD: Orthogonal Malware Detection Using Audio, Image, and Static Features

no code implementations8 Nov 2021 Lakshmanan Nataraj, Tajuddin Manhar Mohammed, Tejaswi Nanjundaswamy, Satish Chikkagoudar, Shivkumar Chandrasekaran, B. S. Manjunath

In this paper, we propose a novel and orthogonal malware detection (OMD) approach to identify malware using a combination of audio descriptors, image similarity descriptors and other static/statistical features.

Malware Detection

HAPSSA: Holistic Approach to PDF Malware Detection Using Signal and Statistical Analysis

no code implementations8 Nov 2021 Tajuddin Manhar Mohammed, Lakshmanan Nataraj, Satish Chikkagoudar, Shivkumar Chandrasekaran, B. S. Manjunath

Malicious PDF documents present a serious threat to various security organizations that require modern threat intelligence platforms to effectively analyze and characterize the identity and behavior of PDF malware.

Malware Detection

Holistic Image Manipulation Detection using Pixel Co-occurrence Matrices

no code implementations12 Apr 2021 Lakshmanan Nataraj, Michael Goebel, Tajuddin Manhar Mohammed, Shivkumar Chandrasekaran, B. S. Manjunath

While most detection methods in literature focus on detecting a particular type of manipulation, it is challenging to identify doctored images that involve a host of manipulations.

Image Forensics Image Manipulation +1

Adversarially Optimized Mixup for Robust Classification

no code implementations22 Mar 2021 Jason Bunk, Srinjoy Chattopadhyay, B. S. Manjunath, Shivkumar Chandrasekaran

Mixup is a procedure for data augmentation that trains networks to make smoothly interpolated predictions between datapoints.

Classification Data Augmentation +2

Malware Detection Using Frequency Domain-Based Image Visualization and Deep Learning

1 code implementation26 Jan 2021 Tajuddin Manhar Mohammed, Lakshmanan Nataraj, Satish Chikkagoudar, Shivkumar Chandrasekaran, B. S. Manjunath

Motivated by the visual similarity of these images for different malware families, we compare our deep neural network models with standard image features like GIST descriptors to evaluate the performance.

Binary Classification Classification +4

Predicting Generalization in Deep Learning via Local Measures of Distortion

no code implementations13 Dec 2020 Abhejit Rajagopal, Vamshi C. Madala, Shivkumar Chandrasekaran, Peder E. Z. Larson

We study generalization in deep learning by appealing to complexity measures originally developed in approximation and information theory.

Quantization

Exploiting Context for Robustness to Label Noise in Active Learning

no code implementations18 Oct 2020 Sudipta Paul, Shivkumar Chandrasekaran, B. S. Manjunath, Amit K. Roy-Chowdhury

Several works in computer vision have demonstrated the effectiveness of active learning for adapting the recognition model when new unlabeled data becomes available.

Active Learning Document Classification +2

Detection, Attribution and Localization of GAN Generated Images

no code implementations20 Jul 2020 Michael Goebel, Lakshmanan Nataraj, Tejaswi Nanjundaswamy, Tajuddin Manhar Mohammed, Shivkumar Chandrasekaran, B. S. Manjunath

Recent advances in Generative Adversarial Networks (GANs) have led to the creation of realistic-looking digital images that pose a major challenge to their detection by humans or computers.

Attribute

Detecting GAN generated Fake Images using Co-occurrence Matrices

no code implementations15 Mar 2019 Lakshmanan Nataraj, Tajuddin Manhar Mohammed, Shivkumar Chandrasekaran, Arjuna Flenner, Jawadul H. Bappy, Amit K. Roy-Chowdhury, B. S. Manjunath

The advent of Generative Adversarial Networks (GANs) has brought about completely novel ways of transforming and manipulating pixels in digital images.

Deep Algorithms: designs for networks

no code implementations6 Jun 2018 Abhejit Rajagopal, Shivkumar Chandrasekaran, Hrushikesh N. Mhaskar

A new design methodology for neural networks that is guided by traditional algorithm design is presented.

Cannot find the paper you are looking for? You can Submit a new open access paper.