Search Results for author: Ritwik Sinha

Found 12 papers, 3 papers with code

Time-uniform central limit theory and asymptotic confidence sequences

2 code implementations11 Mar 2021 Ian Waudby-Smith, David Arbour, Ritwik Sinha, Edward H. Kennedy, Aaditya Ramdas

This paper introduces time-uniform analogues of such asymptotic confidence intervals, adding to the literature on confidence sequences (CS) -- sequences of confidence intervals that are uniformly valid over time -- which provide valid inference at arbitrary stopping times and incur no penalties for "peeking" at the data, unlike classical confidence intervals which require the sample size to be fixed in advance.

Causal Inference valid

Augment before You Try: Knowledge-Enhanced Table Question Answering via Table Expansion

1 code implementation28 Jan 2024 Yujian Liu, Jiabao Ji, Tong Yu, Ryan Rossi, Sungchul Kim, Handong Zhao, Ritwik Sinha, Yang Zhang, Shiyu Chang

Table question answering is a popular task that assesses a model's ability to understand and interact with structured data.

Question Answering

Saliency Prediction for Mobile User Interfaces

no code implementations10 Nov 2017 Prakhar Gupta, Shubh Gupta, Ajaykrishnan Jayagopal, Sourav Pal, Ritwik Sinha

However, given the difference in what constitutes a mobile interface, and the usage context of these devices, we postulate that saliency prediction for mobile interface images requires a fresh approach.

Saliency Prediction

Forecasting Granular Audience Size for Online Advertising

no code implementations8 Jan 2019 Ritwik Sinha, Dhruv Singal, Pranav Maneriker, Kushal Chawla, Yash Shrivastava, Deepak Pai, Atanu R. Sinha

Orchestration of campaigns for online display advertising requires marketers to forecast audience size at the granularity of specific attributes of web traffic, characterized by the categorical nature of all attributes (e. g. {US, Chrome, Mobile}).

Attribute Time Series +1

Botcha: Detecting Malicious Non-Human Traffic in the Wild

no code implementations2 Mar 2021 Sunny Dhamnani, Ritwik Sinha, Vishwa Vinay, Lilly Kumari, Margarita Savova

Malicious bots make up about a quarter of all traffic on the web, and degrade the performance of personalization and recommendation algorithms that operate on e-commerce sites.

Privacy Aware Experiments without Cookies

no code implementations3 Nov 2022 Shiv Shankar, Ritwik Sinha, Saayan Mitra, Viswanathan Swaminathan, Sridhar Mahadevan, Moumita Sinha

We propose a two-stage experimental design, where the two brands only need to agree on high-level aggregate parameters of the experiment to test the alternate experiences.

Experimental Design valid

VADER: Video Alignment Differencing and Retrieval

no code implementations ICCV 2023 Alexander Black, Simon Jenni, Tu Bui, Md. Mehrab Tanjim, Stefano Petrangeli, Ritwik Sinha, Viswanathan Swaminathan, John Collomosse

We propose VADER, a spatio-temporal matching, alignment, and change summarization method to help fight misinformation spread via manipulated videos.

Misinformation Retrieval +2

SODA: Protecting Proprietary Information in On-Device Machine Learning Models

no code implementations22 Dec 2023 Akanksha Atrey, Ritwik Sinha, Saayan Mitra, Prashant Shenoy

The growth of low-end hardware has led to a proliferation of machine learning-based services in edge applications.

Continuous Treatment Effects with Surrogate Outcomes

no code implementations31 Jan 2024 Zhenghao Zeng, David Arbour, Avi Feller, Raghavendra Addanki, Ryan Rossi, Ritwik Sinha, Edward H. Kennedy

In this paper, we study the role of surrogates in estimating continuous treatment effects and propose a doubly robust method to efficiently incorporate surrogates in the analysis, which uses both labeled and unlabeled data and does not suffer from the above selection bias problem.

Causal Inference Selection bias

A/B testing under Interference with Partial Network Information

no code implementations16 Apr 2024 Shiv Shankar, Ritwik Sinha, Yash Chandak, Saayan Mitra, Madalina Fiterau

A/B tests are often required to be conducted on subjects that might have social connections.

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