PhD Theses: Recent submissions
Now showing items 41-60 of 87
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Modeling performance and power matrix of disparate computer systems using machine learning techniques (Modeling Compiler Systems Selection)
(Dhirubhai Ambani Institute of Information and Communication Technology, 2022)In the last couple of decades, there has been an exponential growth in the processor, cache, and memory features of computer systems. These hardware features play a vital role in determining the performance and power of a ... -
Microwave Imaging for Breast Cancer Detection using 3D Level Set based Optimization, FDTD Method and Method of Moments
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)Microwave imaging is emerging as new diagnostic option for breast cancer detection because of non-ionizing nature of microwave radiation and significant contrast between dielectric properties of healthy and malignant breast ... -
Variants of orthogonal neighborhood preserving projections for image recognition
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)With the increase in the resolution of image capturing sensors and data storagecapacity, a huge increase in image data is seen in past decades. This informationupsurge has created a huge challenge for machines to perform ... -
Distributed TDMA scheduling in tree based wireless sensor networks with multiple data attributes and multiple sinks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Data collection is an important application of wireless sensor networks. Sensors are deployed in given region of interest. They sense physical quantity like temperature, pressure, solar radiation, speed and many others. ... -
Downsampling of signals on graphs: an algebraic perspective
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Real-world data such as weather data, seismic activity data, sensor networks data and social network data can be represented and processed conveniently using a mathematical structure called Graph. Graphs are a collection ... -
Spectrum sensing for cognitive radio
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)Due to the rapid growth of new wireless communication services and applications, need for radio frequency (RF) spectrum is continuously increasing. Most of the available RF spectrum is already been licensed to the existing ... -
Design and analysis of schemes for privacy preserving cloud storage services
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Public cloud storage services have become the leading choice for individuals and organizations to store their data, as the service provides the benefits of availability and reliability together at a reduced cost. While ... -
From extractive to abstractive summarization: a journey
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Research in the field of text summarisation has primarily been dominated by investigationsof various sentence extraction techniques with a significant focus towards news articles.In this thesis, we intend to look beyond ... -
Auditory representation learning
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Representation learning (RL) or feature learning has a huge impact in the field of signal processing applications. The goal of the RL approaches is to learn the meaningful representation directly from the data that can be ... -
Between insularity and cosmopolitanism: a study on the relation between Urban Space and Urban Identity in modern Baroda
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Located in the State of Gujarat, the city of Baroda or Vadodara is described a Sanskarnagri, the state's cultural capital and a cosmopolitan urban space. This thesis challenges this image of Vadodara and its current city ... -
Wavelets and filter banks: novel approaches for real and complex-valued transform designs
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)Processing of natural images stored as 2-D discrete signals is an inevitable task in almost all areas of image processing. In order to have the desired processing results, directional image representation can be considered ... -
Design of QbE-STD System: audio representation and matching perspective
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)The retrieval of the spoken document and detecting the query (keyword) within the audio document have attained huge research interest. The problem of retrieving audio documents and detecting the query (keyword) using a ... -
Dense disparity estimation using stereo images
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)"“Stereo vision” refers to the ability to infer information on the three-dimensional (3D) structure and distance/depth of a scene using two images captured from different view-points. It imitates one of the tasks performed ... -
Signal processing methods for robust heart rate estimation from multimodal physiological signals
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)Cardiovascular diseases are the major cause of world-wide mortality. Heart rate (HR) and heart rate variability (HRV) are important health parameters to monitor functioning of heart of cardiac patients. Multimodal physiological ... -
Developing a framework of agriculture knowledge management process in Indian context
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)In the current economy of global competition, many organizations are using knowledge as one of the means to gain sustainable competitive advantage. Knowledge is becoming a critical success factor for organizational ... -
Set labelling vertices and study of auxiliary graphs
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Given a set of nonempty subsets of some universal set, their intersection graph is defined as the graph with one vertex for each set and two vertices are adjacent precisely when their representing sets have non-empty ... -
Graph theoretic investigations of control in biological networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Biological systems exhibit complex phenomena owing to interconnected molecular mechanisms underlying their architecture. Graph is an ideal mathematical abstraction of such systems. The abstract network along with the ... -
Secure and efficient dealing with node capture attack in wireless sensor networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)Wireless Sensor Networks (WSN) have found enormous applications in various areas of day-to-day life such as in health-care, battle-field surveillance and disaster management. The communication amongst the sensor nodes ... -
Novel techniques for auto-inpainting in heritage reconstruction
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)Digital reconstruction of ruined historic monuments and heritage sites can help in visualizing how these may have existed in the past. Also, such a process requires no physical alteration to the existing monuments. This ... -
Efficient, revocable and auditable access over encrypted cloud data
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)Cloud data outsourcing services can potentially help reduce the IT budget of organizations. However, they pose significant risks to the security and privacy of the data as the data is outsourced to untrusted third-party ...