no code implementations • 5 Feb 2025 • Rajiv Movva, Kenny Peng, Nikhil Garg, Jon Kleinberg, Emma Pierson
We describe HypotheSAEs, a general method to hypothesize interpretable relationships between text data (e. g., headlines) and a target variable (e. g., clicks).
no code implementations • 20 Dec 2024 • Erica Chiang, Divya Shanmugam, Ashley N. Beecy, Gabriel Sayer, Nir Uriel, Deborah Estrin, Nikhil Garg, Emma Pierson
Disease progression models are widely used to inform the diagnosis and treatment of many progressive diseases.
1 code implementation • 5 Dec 2024 • Sophie Greenwood, Sudalakshmee Chiniah, Nikhil Garg
Theoretically, we develop a model of recommendations with user and item fairness objectives and characterize the solutions of fairness-constrained optimization.
no code implementations • 21 Nov 2024 • Kenny Peng, Nikhil Garg, Jon Kleinberg
The result does suggest one model of collaboration with guarantees, where one agent identifies "obvious" errors of the other agent.
1 code implementation • 27 May 2024 • Evan Dong, Aaron Schein, Yixin Wang, Nikhil Garg
In particular, we show that argmax labeling, as used by a prominent commercial voter file vendor to impute race/ethnicity, results in a substantial under-count of African-American voters, e. g., by 28. 2% points in North Carolina.
no code implementations • 26 Feb 2024 • Kenny Peng, Nikhil Garg
Each student has a true value $v$, but each college $c$ ranks the student according to an independently drawn estimated value $v + X_c$ for $X_c\sim \mathcal{D}.$ We ask a basic question about the resulting stable matching: How noisy is the set of matched students?
1 code implementation • 18 Dec 2023 • Gabriel Agostini, Emma Pierson, Nikhil Garg
Decision-makers often observe the occurrence of events through a reporting process.
no code implementations • 6 Dec 2023 • Sidhika Balachandar, Nikhil Garg, Emma Pierson
Though our case study is in healthcare, our analysis reveals a general class of domain constraints which can improve model estimation in many settings.
no code implementations • 27 Jul 2023 • Kenny Peng, Manish Raghavan, Emma Pierson, Jon Kleinberg, Nikhil Garg
In recommendation settings, there is an apparent trade-off between the goals of accuracy (to recommend items a user is most likely to want) and diversity (to recommend items representing a range of categories).
1 code implementation • 23 Jul 2023 • Rana Shahout, Yehonatan Peisakhovsky, SASHA STOIKOV, Nikhil Garg
The test resulted in a substantial improvement in user rating behavior and a reduction in item quality inflation.
1 code implementation • 20 Jul 2023 • Rajiv Movva, Sidhika Balachandar, Kenny Peng, Gabriel Agostini, Nikhil Garg, Emma Pierson
Large language models (LLMs) are dramatically influencing AI research, spurring discussions on what has changed so far and how to shape the field's future.
no code implementations • 17 Jul 2023 • Lily Xu, Esther Rolf, Sara Beery, Joseph R. Bennett, Tanya Berger-Wolf, Tanya Birch, Elizabeth Bondi-Kelly, Justin Brashares, Melissa Chapman, Anthony Corso, Andrew Davies, Nikhil Garg, Angela Gaylard, Robert Heilmayr, Hannah Kerner, Konstantin Klemmer, Vipin Kumar, Lester Mackey, Claire Monteleoni, Paul Moorcroft, Jonathan Palmer, Andrew Perrault, David Thau, Milind Tambe
In this white paper, we synthesize key points made during presentations and discussions from the AI-Assisted Decision Making for Conservation workshop, hosted by the Center for Research on Computation and Society at Harvard University on October 20-21, 2022.
no code implementations • 27 May 2023 • Smitha Milli, Emma Pierson, Nikhil Garg
Many recommender systems optimize a linear weighting of different user behaviors, such as clicks, likes, and shares.
1 code implementation • 18 Apr 2023 • Rajiv Movva, Divya Shanmugam, Kaihua Hou, Priya Pathak, John Guttag, Nikhil Garg, Emma Pierson
Across outcomes and metrics, we show that the risk scores exhibit significant granular performance disparities within coarse race groups.
1 code implementation • NeurIPS 2023 • Meena Jagadeesan, Nikhil Garg, Jacob Steinhardt
Producers seek to create content that will be shown by the recommendation algorithm, which can impact both the diversity and quality of their content.
no code implementations • 15 May 2022 • J. D. Zamfirescu-Pereira, Jerry Chen, Emily Wen, Allison Koenecke, Nikhil Garg, Emma Pierson
Algorithms provide powerful tools for detecting and dissecting human bias and error.
1 code implementation • 19 Apr 2022 • Zhi Liu, Uma Bhandaram, Nikhil Garg
A major concern is that residents do not report problems at the same rates, with heterogeneous reporting delays directly translating to downstream disparities in how quickly incidents can be addressed.
no code implementations • 21 Mar 2022 • Nikhil Garg, Ismael Balafrej, Terrence C. Stewart, Jean Michel Portal, Marc Bocquet, Damien Querlioz, Dominique Drouin, Jean Rouat, Yann Beilliard, Fabien Alibart
To validate the system-level performance of VDSP, we train a single-layer spiking neural network (SNN) for the recognition of handwritten digits.
no code implementations • 29 Jan 2022 • Gourab K Patro, Lorenzo Porcaro, Laura Mitchell, Qiuyue Zhang, Meike Zehlike, Nikhil Garg
Ranking, recommendation, and retrieval systems are widely used in online platforms and other societal systems, including e-commerce, media-streaming, admissions, gig platforms, and hiring.
no code implementations • 22 Sep 2021 • Akshay Valsaraj, Ithihas Madala, Nikhil Garg, Veeky Baths
Alzheimers disease is a fatal progressive brain disorder that worsens with time.
no code implementations • 16 Sep 2021 • Lydia T. Liu, Nikhil Garg, Christian Borgs
Strategic classification studies the design of a classifier robust to the manipulation of input by strategic individuals.
no code implementations • 23 Jun 2021 • Wenshuo Guo, Karl Krauth, Michael I. Jordan, Nikhil Garg
First, we introduce a notion of joint accessibility, which measures the extent to which a set of items can jointly be accessed by users.
no code implementations • 10 Jun 2021 • Lizy Kanungo, Nikhil Garg, Anish Bhobe, Smit Rajguru, Veeky Baths
Herein a working prototype of a BCI-based wheelchair is detailed that can navigate inside a typical home environment with minimum structural modification and without any visual obstruction and discomfort to the user.
1 code implementation • 9 Jun 2021 • Nikhil Garg, Ismael Balafrej, Yann Beilliard, Dominique Drouin, Fabien Alibart, Jean Rouat
Using a simple machine learning algorithm after spike encoding, we report performance higher than the state-of-the-art spiking neural networks on two open-source datasets for hand gesture recognition.
no code implementations • 19 Jun 2019 • Nikhil Garg, Lodewijk Gelauff, Sukolsak Sakshuwong, Ashish Goel
Each K-Approval or K-partial ranking mechanism (with a corresponding positional scoring rule) induces a learning rate for the speed at which the election correctly recovers the asymptotic outcome.
1 code implementation • NAACL 2019 • Dorottya Demszky, Nikhil Garg, Rob Voigt, James Zou, Matthew Gentzkow, Jesse Shapiro, Dan Jurafsky
We provide an NLP framework to uncover four linguistic dimensions of political polarization in social media: topic choice, framing, affect and illocutionary force.
no code implementations • 18 Jun 2018 • Nikhil Garg, Ramesh Johari
Modern online platforms rely on effective rating systems to learn about items.
1 code implementation • 22 Nov 2017 • Nikhil Garg, Londa Schiebinger, Dan Jurafsky, James Zou
Word embeddings use vectors to represent words such that the geometry between vectors captures semantic relationship between the words.
no code implementations • 4 Mar 2016 • Nikhil Garg, James Henderson
We propose a Bayesian model of unsupervised semantic role induction in multiple languages, and use it to explore the usefulness of parallel corpora for this task.