etd AT Indian Institute of Science: Recent submissions
Now showing items 941-960 of 7945
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Systolic architectures for realistic 3-D graphics.
Computer Graphics has come a long way from its humble beginning of lin£ drawing displays in the early sixties to the present day extremely realistic, synthetic, and photography quality pictures. As a result, interactive ... -
Algorithmic knowledge for a knowledge-based clustering environment.
Clustering is a process of partitioning a given set of objects into meaningful groups. It has potential applications in many areas, including: 1.Image Segmentation, 2. Speech/speaker Classification, 2.ECG Classificati ... -
Artificial intelligence research RR-76 : Machine Visualization of three dimensional objects
Computer Simulation of One Aspect of Human Visual Perceptual Capabilities This simulation focuses on the human ability to visualize object views resulting from the rotation of known objects. The objects considered are ... -
Decentralized optimization with appliation to flow control
Decentralized computation is considered an important design goal of large systems. This may be to increase the reliability of the system or to reduce the computation time, and in some situations, it is a necessity. ... -
Fault tolerant trasputer based firmware for parallel solution of partial differntial equations by the boundry element method
This work presents a fault-tolerant multi-transputer architecture capable of handling single-node failures without interrupting program execution. The system dynamically reconfigures the interconnections among transputers ... -
Diagnostic Reasoning with Surface and Deep Level Knowledge in Medical Domain
The aim of this work is to structure the domain knowledge based upon some conceptual models so that the knowledge can be efficiently used for diagnostic reasoning in medical domain. Medical domain is complex and incompletely ... -
Solution of algebraic riccati equations on wavefront array processors
The need for high performance computers has been felt for some time in application areas such as on-line control, system identification and estimation in real-time, complex control system design, etc. Parallel computers ... -
Analogies and their use in problem-solving
The thesis deals with the meaning of "analogy" and how it can be extracted and exploited for the following two classes of problems: CLASS 1: How can one transfer the theorems of one domain (in mathematics) to analogous ... -
Hierarchical Data Structures data structures based on quadtrees
In the present thesis, a size-based hierarchical ordering of the codes of the linear quadtree, called the Linear Hierarchical Quadtree (LHQT), is shown to reduce the time spent while exploring the adjacencies, without any ... -
Linear block source coding for binary memoryless sources
Despite the existence of well-defined rate-distortion functions for general binary memoryless sources (BMS), block source coding theory has traditionally been restricted to sources with equiprobable symbols, in which case ... -
S-Nets : Tool for the performance evaluation of hard real-time scheduling algorithms
A new Petri net-based tool is developed for an integrated analysis of schedulability and performance of Hard Real-Time Systems (HRTSs). The existing Deterministic Timed Petri Nets (DTPNs) do not facilitate modeling of ... -
Multimedia Streaming and Proxy Caching
The information technology revolution has led to the explosive growth of the Internet. There is an increased demand for real-time applications like audio/video streaming and videoconferencing. The increase in demand ... -
Neighborhood based algorithms for network problems
This thesis presents novel techniques for designing efficient algorithms to solve various graph problems, with a focus on both sequential and parallel computation models. The key contributions include: An O(dm)O(dm)O(dm) ... -
Lexicalisation of montague semantics: a unified approach to semantic interpretation
This thesis presents the X/LTAG model, a novel framework for semantic representation that integrates the Lexicalized Tree Adjoining Grammar (LTAG) formalism of Arvind Joshi with the possible world semantics of Richard ... -
A New Framework for Reconstructing One-and Multi-Dimensional Signals from Partial Information
This thesis addresses a class of inverse problems in signal and image reconstruction using partial information such as zero crossings, Fourier sign data, extrema, and modulus maxima. The focus is on reconstructing images ... -
Estimating probabilities of rare events in regenerative systems via importance sampling
In the high-speed networks currently being designed, the probability of packet loss required is very low, while the closed-form expressions for these events are usually not available. Therefore, one needs to estimate these ... -
Discrete electron fluctuations in van der Waals heterojunction
Two-dimensional (2D) materials, including transition metal dichalcogenides (TMDs) and graphene have emerged as promising candidates for next-generation nanoelectronic devices due to their atomically thin geometry. This low ... -
Herglotz representation, approximation by inner functions, and Hankel operators
This thesis can be broadly categorized under the theories of multi-variable operators and holomorphic functions, structured into two distinct parts. The first part investigates the relationship between two classical theorems: ... -
Development of Fully Printed Smart Tags with On-chip Power Sources
Within the last two decades, the field of printed and flexible electronics has matured to the level that complex solutions to societal needs can be envisioned. This includes applications involving multi-sensor platforms, ... -
Flood Risk Assessment in Peninsular India: Integrating Data, Multivariate Statistics, and Machine Learning
Floods are among the most significant natural hazards in India; however, their drivers, spatial coherence, and potential impacts remain poorly understood, particularly in data-scarce catchments. This thesis addresses these ...