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Soumyasundar Pal

10 accepted papers

2025

C3PO: Optimized Large Language Model Cascades with Probabilistic Cost Constraints for Reasoning

NeurIPS 2025poster

Large language models (LLMs) have achieved impressive results on complex reasoning tasks, but their high inference cost remains a major barrier to real-world deployment. A promising solution is to use cascaded inference, where small, cheap models handle easy queries, and only the hardest examples ar…

Cited by 0SourceScholar
2024

CKGConv: General Graph Convolution with Continuous Kernels

ICML 2024poster

The existing definitions of graph convolution, either from spatial or spectral perspectives, are inflexible and not unified. Defining a general convolution operator in the graph domain is challenging due to the lack of canonical coordinates, the presence of irregular structures, and the properties o…

2024

Multi-resolution Time-Series Transformer for Long-term Forecasting

AISTATS 2024poster

The performance of transformers for time-series forecasting has improved significantly. Recent architectures learn complex temporal patterns by segmenting a time-series into patches and using the patches as tokens. The patch size controls the ability of transformers to learn the temporal patterns at…

Cited by 49SourcePDFScholar
2022

Bag Graph: Multiple Instance Learning Using Bayesian Graph Neural Networks

AAAI 2022technical

Multiple Instance Learning (MIL) is a weakly supervised learning problem where the aim is to assign labels to sets or bags of instances, as opposed to traditional supervised learning where each instance is assumed to be independent and identically distributed (IID) and is to be labeled individually.…

2021

Detection and Defense of Topological Adversarial Attacks on Graphs

AISTATS 2021poster

Graph neural network (GNN) models achieve superior performance when classifying nodes in graph-structured data. Given that state-of-the-art GNNs share many similarities with their CNN cousins and that CNNs suffer adversarial vulnerabilities, there has also been interest in exploring analogous vulner…

Cited by 13SourcePDFScholar
2021

RNN with Particle Flow for Probabilistic Spatio-temporal Forecasting

ICML 2021oral

Spatio-temporal forecasting has numerous applications in analyzing wireless, traffic, and financial networks. Many classical statistical models often fall short in handling the complexity and high non-linearity present in time-series data. Recent advances in deep learning allow for better modelling…

2020

Active Learning on Attributed Graphs via Graph Cognizant Logistic Regression and Preemptive Query Generation

ICML 2020poster

Node classification in attributed graphs is an important task in multiple practical settings, but it can often be difficult or expensive to obtain labels. Active learning can improve the achieved classification performance for a given budget on the number of queried labels. The best existing methods…

Cited by 14SourcePDFScholar
2020

Non Parametric Graph Learning for Bayesian Graph Neural Networks

UAI 2020poster

Graphs are ubiquitous in modelling relationalstructures. Recent endeavours in machine learningfor graph structured data have led to manyarchitectures and learning algorithms. However,the graph used by these algorithms is oftenconstructed based on inaccurate modellingassumptions and/or noisy data. As…

Cited by 25SourcePDFScholar