Search Results for author: Rana Forsati

Found 5 papers, 0 papers with code

Pareto Efficient Fairness in Supervised Learning: From Extraction to Tracing

no code implementations4 Apr 2021 Mohammad Mahdi Kamani, Rana Forsati, James Z. Wang, Mehrdad Mahdavi

The proposed PEF notion is definition-agnostic, meaning that any well-defined notion of fairness can be reduced to the PEF notion.

Bilevel Optimization Decision Making +1

Minimal Variance Sampling with Provable Guarantees for Fast Training of Graph Neural Networks

no code implementations24 Jun 2020 Weilin Cong, Rana Forsati, Mahmut Kandemir, Mehrdad Mahdavi

In this paper, we theoretically analyze the variance of sampling methods and show that, due to the composite structure of empirical risk, the variance of any sampling method can be decomposed into \textit{embedding approximation variance} in the forward stage and \textit{stochastic gradient variance} in the backward stage that necessities mitigating both types of variance to obtain faster convergence rate.

Efficient Fair Principal Component Analysis

no code implementations12 Nov 2019 Mohammad Mahdi Kamani, Farzin Haddadpour, Rana Forsati, Mehrdad Mahdavi

It has been shown that dimension reduction methods such as PCA may be inherently prone to unfairness and treat data from different sensitive groups such as race, color, sex, etc., unfairly.

Dimensionality Reduction Fairness

Semi-supervised Collaborative Ranking with Push at Top

no code implementations17 Nov 2015 Iman Barjasteh, Rana Forsati, Abdol-Hossein Esfahanian, Hayder Radha

We propose a semi-supervised collaborative ranking model, dubbed \texttt{S$^2$COR}, to improve the quality of cold-start recommendation.

Collaborative Ranking Recommendation Systems

Matrix Factorization with Explicit Trust and Distrust Relationships

no code implementations2 Aug 2014 Rana Forsati, Mehrdad Mahdavi, Mehrnoush Shamsfard, Mohamed Sarwat

With the advent of online social networks, recommender systems have became crucial for the success of many online applications/services due to their significance role in tailoring these applications to user-specific needs or preferences.

Recommendation Systems

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