Search Results for author: Nazanin Alipourfard

Found 5 papers, 5 papers with code

Can you Trust the Trend: Discovering Simpson's Paradoxes in Social Data

2 code implementations13 Jan 2018 Nazanin Alipourfard, Peter G. Fennell, Kristina Lerman

We present a statistical method to automatically identify Simpson's paradox in data by comparing statistical trends in the aggregate data to those in the disaggregated subgroups.

Computers and Society

Using Simpson's Paradox to Discover Interesting Patterns in Behavioral Data

1 code implementation8 May 2018 Nazanin Alipourfard, Peter G. Fennell, Kristina Lerman

We describe a data-driven discovery method that leverages Simpson's paradox to uncover interesting patterns in behavioral data.

Friendship Paradox Biases Perceptions in Directed Networks

1 code implementation13 May 2019 Nazanin Alipourfard, Buddhika Nettasinghe, Andres Abeliuk, Vikram Krishnamurthy, Kristina Lerman

For example, in an online network of a social media platform, the number of people who mention a topic in their posts---i. e., its global popularity---can be dramatically different from how people see it in their social feeds---i. e., its perceived popularity---where the feeds aggregate their friends' posts.

Social and Information Networks Physics and Society

DoGR: Disaggregated Gaussian Regression for Reproducible Analysis of Heterogeneous Data

1 code implementation31 Aug 2021 Nazanin Alipourfard, Keith Burghardt, Kristina Lerman

Quantitative analysis of large-scale data is often complicated by the presence of diverse subgroups, which reduce the accuracy of inferences they make on held-out data.

regression

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