no code implementations • 4 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.
no code implementations • 24 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.
no code implementations • 12 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.
no code implementations • 17 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.
no code implementations • 2 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.