Search Results for author: Nir Rosenfeld

Found 23 papers, 10 papers with code

Classification Under Strategic Self-Selection

no code implementations23 Feb 2024 Guy Horowitz, Yonatan Sommer, Moran Koren, Nir Rosenfeld

When users stand to gain from certain predictions, they are prone to act strategically to obtain favorable predictive outcomes.

Classification

One-Shot Strategic Classification Under Unknown Costs

no code implementations5 Nov 2023 Elan Rosenfeld, Nir Rosenfeld

The goal of strategic classification is to learn decision rules which are robust to strategic input manipulation.

Classification

Instructed to Bias: Instruction-Tuned Language Models Exhibit Emergent Cognitive Bias

1 code implementation1 Aug 2023 Itay Itzhak, Gabriel Stanovsky, Nir Rosenfeld, Yonatan Belinkov

Recent studies show that instruction tuning (IT) and reinforcement learning from human feedback (RLHF) improve the abilities of large language models (LMs) dramatically.

Decision Making

Delegated Classification

1 code implementation NeurIPS 2023 Eden Saig, Inbal Talgam-Cohen, Nir Rosenfeld

When machine learning is outsourced to a rational agent, conflicts of interest might arise and severely impact predictive performance.

Classification LEMMA

Decongestion by Representation: Learning to Improve Economic Welfare in Marketplaces

1 code implementation18 Jun 2023 Omer Nahum, Gali Noti, David Parkes, Nir Rosenfeld

The power of a platform is limited to controlling representations -- the subset of information about items presented by default to users.

Representation Learning

Causal Strategic Classification: A Tale of Two Shifts

2 code implementations13 Feb 2023 Guy Horowitz, Nir Rosenfeld

When users can benefit from certain predictive outcomes, they may be prone to act to achieve those outcome, e. g., by strategically modifying their features.

Classification Vocal Bursts Valence Prediction

Performative Recommendation: Diversifying Content via Strategic Incentives

2 code implementations8 Feb 2023 Itay Eilat, Nir Rosenfeld

The primary goal in recommendation is to suggest relevant content to users, but optimizing for accuracy often results in recommendations that lack diversity.

Re-Ranking

Learning to Suggest Breaks: Sustainable Optimization of Long-Term User Engagement

2 code implementations24 Nov 2022 Eden Saig, Nir Rosenfeld

Optimizing user engagement is a key goal for modern recommendation systems, but blindly pushing users towards increased consumption risks burn-out, churn, or even addictive habits.

Recommendation Systems

Strategic Representation

no code implementations17 Jun 2022 Vineet Nair, Ganesh Ghalme, Inbal Talgam-Cohen, Nir Rosenfeld

In our main setting of interest, the system represents attributes of an item to the user, who then decides whether or not to consume.

Decision Making

In the Eye of the Beholder: Robust Prediction with Causal User Modeling

no code implementations1 Jun 2022 Amir Feder, Guy Horowitz, Yoav Wald, Roi Reichart, Nir Rosenfeld

Accurately predicting the relevance of items to users is crucial to the success of many social platforms.

Recommendation Systems

Strategic Classification with Graph Neural Networks

1 code implementation31 May 2022 Itay Eilat, Ben Finkelshtein, Chaim Baskin, Nir Rosenfeld

Strategic classification studies learning in settings where users can modify their features to obtain favorable predictions.

Classification

Generalized Strategic Classification and the Case of Aligned Incentives

1 code implementation9 Feb 2022 Sagi Levanon, Nir Rosenfeld

Our generalized model subsumes most current models but includes other novel settings; among these, we identify and target one intriguing sub-class of problems in which the interests of users and the system are aligned.

Classification

Strategic Classification Made Practical

1 code implementation2 Mar 2021 Sagi Levanon, Nir Rosenfeld

Our approach directly minimizes the "strategic" empirical risk, achieved by differentiating through the strategic response of users.

Classification General Classification

Strategic Classification in the Dark

1 code implementation23 Feb 2021 Ganesh Ghalme, Vineet Nair, Itay Eilat, Inbal Talgam-Cohen, Nir Rosenfeld

Strategic classification studies the interaction between a classification rule and the strategic agents it governs.

Classification General Classification

From Predictions to Decisions: Using Lookahead Regularization

no code implementations NeurIPS 2020 Nir Rosenfeld, Sophie Hilgard, Sai Srivatsa Ravindranath, David C. Parkes

Machine learning is a powerful tool for predicting human-related outcomes, from credit scores to heart attack risks.

A Kernel of Truth: Determining Rumor Veracity on Twitter by Diffusion Pattern Alone

no code implementations28 Jan 2020 Nir Rosenfeld, Aron Szanto, David C. Parkes

Recent work in the domain of misinformation detection has leveraged rich signals in the text and user identities associated with content on social media.

Misinformation

Predicting Choice with Set-Dependent Aggregation

no code implementations ICML 2020 Nir Rosenfeld, Kojin Oshiba, Yaron Singer

Providing users with alternatives to choose from is an essential component in many online platforms, making the accurate prediction of choice vital to their success.

Learning Representations by Humans, for Humans

no code implementations29 May 2019 Sophie Hilgard, Nir Rosenfeld, Mahzarin R. Banaji, Jack Cao, David C. Parkes

When machine predictors can achieve higher performance than the human decision-makers they support, improving the performance of human decision-makers is often conflated with improving machine accuracy.

Decision Making Representation Learning

Label Propagation Networks

no code implementations ICLR 2019 Kojin Oshiba, Nir Rosenfeld, Amir Globerson

Graph networks have recently attracted considerable interest, and in particular in the context of semi-supervised learning.

Discriminative Learning of Prediction Intervals

no code implementations16 Oct 2017 Nir Rosenfeld, Yishay Mansour, Elad Yom-Tov

Most current methods for constructing prediction intervals offer guarantees for a single new test point.

Prediction Intervals

Semi-Supervised Learning with Competitive Infection Models

no code implementations19 Mar 2017 Nir Rosenfeld, Amir Globerson

The goal in semi-supervised learning is to effectively combine labeled and unlabeled data.

Predicting Counterfactuals from Large Historical Data and Small Randomized Trials

no code implementations24 Oct 2016 Nir Rosenfeld, Yishay Mansour, Elad Yom-Tov

The conventional way to answer this counterfactual question is to estimate the effect of the new treatment in comparison to that of the conventional treatment by running a controlled, randomized experiment.

counterfactual

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