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Raghavendra Addanki

9 accepted papers

2026

GT-SVJ: Generative-Transformer-Based Self-Supervised Video Judge For Efficient Video Reward Modeling

CVPR 2026

Aligning video generative models with human preferences remains challenging: current approaches rely on Vision-Language Models (VLMs) for reward modeling, but these models struggle to capture subtle temporal dynamics. We propose a fundamentally different approach: repurposing video generative models

Cited by 0SourceScholar
2025

Causal Discovery-Driven Change Point Detection in Time Series

AISTATS 2025poster

Change point detection in time series aims to identify moments when the probability distribution of time series changes. It is widely applied in many areas, such as human activity sensing and medical science. In the context of multivariate time series, this typically involves examining the joint dis…

Cited by 0SourceScholar
2025

Leveraging semantic similarity for experimentation with AI-generated treatments

NeurIPS 2025poster

Large Language Models (LLMs) enable a new form of digital experimentation where treatments combine human and model-generated content in increasingly sophisticated ways. The main methodological challenge in this setting is representing these high-dimensional treatments without losing their semantic m…

Cited by 0SourceScholar
2025

Offline RL by Reward-Weighted Fine-Tuning for Conversation Optimization

NeurIPS 2025poster

Offline reinforcement learning (RL) is a variant of RL where the policy is learned from a previously collected dataset of trajectories and rewards. In our work, we propose a practical approach to offline RL with large language models (LLMs). We recast the problem as reward-weighted fine-tuning, whic…

Cited by 0SourceScholar
2024

Continuous Treatment Effects with Surrogate Outcomes

ICML 2024poster

In many real-world causal inference applications, the primary outcomes (labels) are often partially missing, especially if they are expensive or difficult to collect. If the missingness depends on covariates (i.e., missingness is not completely at random), analyses based on fully observed samples al…

Cited by 3SourcePDFScholar
2023

Causal Discovery in Semi-Stationary Time Series

NeurIPS 2023poster

Discovering causal relations from observational time series without making the stationary assumption is a significant challenge. In practice, this challenge is common in many areas, such as retail sales, transportation systems, and medical science. Here, we consider this problem for a class of non-s…

2022

Sample Constrained Treatment Effect Estimation

NeurIPS 2022accept

Treatment effect estimation is a fundamental problem in causal inference. We focus on designing efficient randomized controlled trials, to accurately estimate the effect of some treatment on a population of $n$ individuals. In particular, we study \textit{sample-constrained treatment effect estimati…

2020

Efficient Intervention Design for Causal Discovery with Latents

ICML 2020poster

We consider recovering a causal graph in presence of latent variables, where we seek to minimize the cost of interventions used in the recovery process. We consider two intervention cost models: (1) a linear cost model where the cost of an intervention on a subset of variables has a linear form, and…

Cited by 38SourcePDFScholar