Adhilsha Ansad
Welcome to my website! I am a final-year Integrated M.Sc. student at the National Institute of Science Education and Research (NISER), Bhubaneswar, majoring in Physics with a minor in Computer Science. As a researcher at SMLab, I am passionate about Machine Learning, and coding.
A well-written code is as beautiful as any piece of art.
That just makes me want more to be a better artist.
Here are some things I have been upto:
Here are some of my ML projects.
Related to a project on explaining oversmoothing in Graph Neural Networks, we are experimenting on architectures and modifications that mitigate oversmoothing.
Details will be updated once the project reaches its final stages.
State Space Models (SSMs), such as S4 and Mamba, have demonstrated exceptional performance in sequence modeling, with recent extensions to Graph Neural Networks (GNNs). A variant of SSM is the Liquid State Space Model (Liquid SSM), in which the update captures interactions across different parts of the input. Building on this liquid update equation and Mamba state update equation, we propose applying these and modify them to enhance representation building in GNNs.
Details will be updated once the project reaches its final stages.
Transformers have revolutionized NLP with their self-attention mechanisms, but their quadratic complexity limits effectiveness for long-term context tasks. Mamba models, with linear complexity, achieve similar or superior performance while reducing computational overhead. This project aims to merge Mamba's efficiency with transformers' robust contextual understanding, optimizing them for long-context tasks.
Details will be updated once the project reaches its final stages.
In this project, an oversampling technique was designed to tackle class imbalance within heterogeneous graphs. To tackle the issues, we will use components based on node-types within the oversampling technique.
Details will be updated once the publication reaches its final stages.
Large-scale deep learning models are known for their large amount of parameters, weighing down on the computational resources. The core of the Lottery Ticket Hypothesis showed us the potential of pruning to reduce such parameters without a significant drop in accuracy. Quaternion neural networks achieve comparable accuracy to equivalent real-valued networks on multi-dimensional prediction tasks.
Our experiments show that the pruned quaternion implementations perform better at higher sparsity than the corresponding real-valued counterpart, even in some larger neural networks.
The MESA (Modules for Experiments in Stellar Astrophysics) simulations are a series of open-source software packages for 1D stellar evolution. For an astrophysics project, we used MESA to simulate the evolution of a star with certain initial conditions and plot various stellar parameters against time and radius. The project aimed to understand the evolution of stars and the processes that occur within them.
NOTE: This was a course project with little to no contributions to novel research.
Studying galactic mean-field dynamos involves exploring the intricate dynamics governing cosmic magnetic fields, which provide invaluable insights into the formation and evolution of galaxies. In Galactic mean-field theory, the evolution of magnetic fields is thoroughly described by the induction equation, which is crucial for explaining the dynamics of these fields within cosmic structures.
NOTE: This was a course project with little to no contributions to novel research.
Lock-in detection, the popular signal processing technique, is renowned for its ability to extract weak signals from noise. Lock-in amplifiers are widely used in numerous optical equipment and experimental configurations to detect weak signals superimposed on a noisy background. This motivates us to implement a Lock-in amplifier using the advantages of the ExpEYES-17 hardware and the growing computational power of Python programming software.
NOTE: This was a course project with little to no contributions to novel research.
In lattices where atoms are bound by the neighboring atoms and forces, the study of lattice vibrations can reveal information about the material’s properties. In this project, we will study the vibrational modes of a 1D lattice of N atoms with the same mass m and nearest-neighbor interactions by employing a combination of numerical methods. By utilizing RK4 time stepping and FFT analysis, we explore the vibrational modes arising from various initial conditions and boundary constraints.
NOTE: This was a course project with little to no contributions to novel research.
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