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Vighnesh Subramaniam

6 accepted papers

2025

Multiagent Finetuning: Self Improvement with Diverse Reasoning Chains

ICLR 2025poster

Large language models (LLMs) have achieved remarkable performance in recent years but are fundamentally limited by the underlying training data. To improve models beyond the training data, recent works have explored how LLMs can be used to generate synthetic data for autonomous self-improvement. How…

Cited by 12SourcePDFScholar
2025

Population Transformer: Learning Population-level Representations of Neural Activity

ICLR 2025oral

We present a self-supervised framework that learns population-level codes for arbitrary ensembles of neural recordings at scale. We address key challenges in scaling models with neural time-series data, namely, sparse and variable electrode distribution across subjects and datasets. The Population T…

2025

Training the Untrainable: Introducing Inductive Bias via Representational Alignment

NeurIPS 2025poster

We demonstrate that architectures which traditionally are considered to be ill-suited for a task can be trained using inductive biases from another architecture. We call a network untrainable when it overfits, underfits, or converges to poor results even when tuning their hyperparameters. For examp…

Cited by 0SourceScholar
2024

Brain Treebank: Large-scale intracranial recordings from naturalistic language stimuli

NeurIPS 2024oral

We present the Brain Treebank, a large-scale dataset of electrophysiological neural responses, recorded from intracranial probes while 10 subjects watched one or more Hollywood movies. Subjects watched on average 2.6 Hollywood movies, for an average viewing time of 4.3 hours, and a total of 43 hours…

Cited by 3SourcePDFScholar
2024

Revealing Vision-Language Integration in the Brain with Multimodal Networks

ICML 2024poster

We use (multi)modal deep neural networks (DNNs) to probe for sites of multimodal integration in the human brain by predicting stereoencephalography (SEEG) recordings taken while human subjects watched movies. We operationalize sites of multimodal integration as regions where a multimodal vision-lang…

2023

BrainBERT: Self-supervised representation learning for intracranial recordings

ICLR 2023poster

We create a reusable Transformer, BrainBERT, for intracranial recordings bringing modern representation learning approaches to neuroscience. Much like in NLP and speech recognition, this Transformer enables classifying complex concepts, i.e., decoding neural data, with higher accuracy and with much…