etd AT Indian Institute of Science: Recent submissions
Now showing items 1-20 of 7253
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Exploration and Misspecification in Reinforcement Learning
Among the basic challenges that confront reinforcement learning are exploration – the need to search effectively over large and complex state-action spaces – and misspecification, which arises from using function ... -
Investigating the geodynamics of the Indian plate using time-dependent mantle convection models
The northward migration of the Indian plate after breaking apart from Pangaea in Mesozoic followed by its collision with Eurasia during Cenozoic is a remarkable example of continental drift. Associated with this tectonic ... -
Rotary atomization of non-Newtonian liquids for Spray drying applications
Food wastage poses a significant threat to the nation’s food supply and safety due to inadequate storage infrastructure and logistics facilities. This study explores the potential of spray drying as a viable solution to ... -
Zero Knowledge Proofs: Succinct Verification, Distributed Proofs and Lookup Arguments
Zero-Knowledge Proofs (ZKPs) are fundamental cryptographic tools enabling a prover to convince a verifier about the knowledge of a secret witness related to a public statement, without revealing any information beyond the ... -
Secure Vickrey Auctions with Rational Parties
In this work, we construct a second price (Vickrey) auction protocol (SPA), which does not require any auctioneers and ensures total privacy in the presence of rational parties participating in the auction. In particular, ... -
Theoretical Investigations of Excited State Proton Transfer in Selected Molecular Systems
Excited state proton transfer (ESPT) plays a key role in various chemical and biological systems, including DNA where it plays a role in the deactivation mechanism. Compared to the ground state, molecules typically have ... -
Engineering 2D Materials and Heterostructures for Advanced Gas Sensing and Molecular Memory Devices
The increasing need for monitoring environmental health has spurred the search for advanced sensing materials to create energy efficient, low cost, light weight gas sensing systems. The inherent attributes of 2D materials, ... -
Design,fabrication and instrumentation of a broadcast bus multicomputer system
In this thesis, we propose, design, and give the implementation details of a Multicomputer System called the Broadcast Bus Multicomputer System (BBMS). We also model the message broadcast bus and compare the analytical ... -
Study of giant radio galaxies.
Within the framework of the beam model, we have deduced some basic physical parameters of the jets and hotspots associated with classical double radio sources, following a simple approach which is based on the assumptions ... -
Dissipative dynamics of classical and quantum systems
We have calculated the dynamic structure factor for tethered surfaces in the concentrated and semi-dilute regimes. We also calculated the concentration dependence of the diffusion constant and the coefficient of form ... -
Charged solution excitations and the vaccum state of.. field theories
This thesis describes some theoretical investigations on ?? field theories (i.e., theories governed by Lagrangians which are sixth-degree polynomials in ?) where ? is either a real or a complex scalar field. We work in one ... -
Topics in the statistical mechanics of extended objects
In this chapter, we have presented a theory for muon-spin-rotation (?SR) spectra in anisotropic, layered superconductors, incorporating thermal effects in both the solid and liquid phases. We now discuss, in some detail, ... -
Study Of the Cometary Globules in the Gum Nebula
From our analysis of the measured velocities of cometary globules (CGs), we draw the following conclusions: Kinematic Interpretation The motion of the CGs cannot be explained by a model dominated by galactic rotation, ... -
Study of radio emissions from clusters of galaxies: CD galaxies and the very steep spectrum sources
(a) An important conclusion regarding the probability of radio emission associated with the brightest galaxy in the centre of a cluster containing a VSSS (Very Steep Spectrum Source) can be drawn from the study of Table ... -
Analytic and numerical studies of neural network models of associative memory
In this thesis, we have used analytical and numerical methods to study the behaviour of neural network models for the storage, classification and associative recall of information. In Part A, we have studied a class of ... -
Transient and steady-state response of second and higher order non-linear systems
The present investigation deals with the transient flnfl steady-state response o£ second and higher order nonlinear systems. The method of attack consists of the ultraspherical polynomial approximation and the weighted ...