Browsing PhD Theses by Title
Now showing items 27-46 of 73
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Design of countermeasures for spoofed speech detection system
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)Automatic Speaker Verification (ASV) systems are vulnerable to speech synthesisand voice conversion techniques due to spoofing attacks.Recently, to encourage thedevelopment of anti-spoofing measures or countermeasures for ... -
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 ... -
Design of spoof speech detection system : teager energy-based approach
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)Automatic Speaker Verification (ASV) systems are vulnerable to various spoofing attacks, namely, Speech Synthesis (SS), Voice Conversion (VC), Replay, and Impersonation. The study of spoofing countermeasures has become ... -
Detection of tampering in digital images using feature based hash generation
(Dhirubhai Ambani Institute of Information and Communication Technology, 2014)Recent years have witnessed an exponential growth in the use of digital images due to development of high quality digital cameras and multimedia technology. Easy availability of user-friendly image editing software has ... -
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 ... -
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 ... -
Dynamic information management methodology with situation awareness capability
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)In present world, information generation, handling and utilization is deeply integrated with various activities. From entertainment to serious professional activities, information content is managed in some ways. Appropriate ... -
Efficient methodologies for package/housing effect on active MMIC and signal integrity problems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)There has been a great demand in a Computer Aided Design (CAD) tool with a capability of design and analysis of gigahertz system having active Monolithic Microwave -
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 ... -
Entity Based Query Processing For Retrieval And Summarization In Biomedical Domain
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)Exponential growth of biomedical literature poses different challenges in searching. To address complex information needs of the users, rigorous semantic processing of biomedical text is required. Biomedical information ... -
Event-driven service-oriented architecture for dynamic composition of Web services
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)The Business process contains a set of services to fulfill its goal. The Service is a software component to perform a specific activity of a business process. The Business processes are event-driven and change frequently ... -
Facial expression recognition: feature based approaches to deep learning techniques
(Dhirubhai Ambani Institute of Information and Communication Technology, 2020)Facial expression recognition (FER) is a problem of pattern recognition that invites the attention of computer vision researchers for the last three decades. However, the problem is still alive due to challenges such as - ... -
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 ... -
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 ... -
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 ... -
Impact of Weather Conditions on Macroscopic Traffic Stream Variables in an Intelligent Transportation System
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)"Accurate prediction of the macroscopic traffic stream variables such as speed and flow is essential for the traffic operation and management in an Intelligent Transportation System (ITS). Adverse weather conditions like ... -
Investigating into a light-weight reconfigurable VLSI architecture for biomedical signal processing applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)The Body Sensor Network systems consist of signal acquisition and processing blocks along with Power Management Unit and radio transmission capabilities. The high power consumption of the radio transmission is often ... -
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 ... -
Investigation into radiation hardening techniques on differential receiver and power management unit in 0.8um CMOS for space applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)This report details out radiation hardening techniques, their implementation on Di erential Receiver and Power Management Unit. Dierential Receiver ASIC is designed with addressable, synchronous and asynchronous features ...