PhD Theses: Recent submissions
Now showing items 21-40 of 73
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Hybrid partitioning and distribution of RDF data
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)RDF is a standard model by W3C specifically designed for data interchange on the web. RDF was established and used for the development of the semantic web. However, nowadays RDF data is being used for diverse domains and ... -
On designing DNA codes and their applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)Bio-computing uses the complexes of biomolecules such as DNA (Deoxyribonucleic acid), RNA (Ribonucleic acid) and proteins to perform the computational processes for encoding and processing the data. In 1994, L. Adleman ... -
Investigation into a low cost low energy IoT enabled wireless sensor node for particulate matter prediction for environmental applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)In recent years, increased transportation, removal of trees for making buildings, establishment of new industries, are the main sources of increased pollution. Increased pollution is one of the major challenge faced by all ... -
Microblog processing : summarization and impoliteness detection
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)Social Media is an excellent source for studying human interaction and behavior. Sensing social media such as Facebook and Twitter, by the smart autonomous application empower its user community with real-time information ... -
MMIC based high power transmit/receive and receive protection switches with integrated LNAs
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)The conventional high power microwave signal switching component is the Silicon/GaAs PIN diode, while the recently GaN pHEMT devices are being used for this application. GaAs FET, used as switching element as a PIN diode ... -
Adaptive techniques to improve the efficiency of GaN based SSPAs (up to C Band) for geo synchronous satellites
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)In this thesis, various adaptive techniques to improve the efficiency of Solid State Power Amplifier (SSPA) for Geo Synchronous Satellite are presented. The Microwave Power Amplifiers (MPAs) being the most important ... -
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 ...