471 citations · 568 across the 8 of their papers we have counts for
11 papers
Social Catalysts: Characterizing People Who Spark Conversations Among Others
Martin Saveski, Farshad Kooti, Sylvia Morelli Vitousek +3
People assume different and important roles within social networks. Some roles have received extensive study: that of influencers who are well-connected, and that of brokers who br…
Causal Network Motifs: Identifying Heterogeneous Spillover Effects in A/B Tests
Yuan Yuan, Kristen M. Altenburger, Farshad Kooti
Randomized experiments, or "A/B" tests, remain the gold standard for evaluating the causal effect of a policy intervention or product change. However, experimental settings, such a…
iPhone's Digital Marketplace: Characterizing the Big Spenders
Farshad Kooti, Mihajlo Grbovic, Luca Maria Aiello +2
With mobile shopping surging in popularity, people are spending ever more money on digital purchases through their mobile devices and phones. However, few large-scale studies of mo…
Ensemble Validation: Selectivity has a Price, but Variety is Free
Eric Bax, Farshad Kooti
Suppose some classifiers are selected from a set of hypothesis classifiers to form an equally-weighted ensemble that selects a member classifier at random for each input example. T…
Evidence of Online Performance Deterioration in User Sessions on Reddit
Philipp Singer, Emilio Ferrara, Farshad Kooti +2
This article presents evidence of performance deterioration in online user sessions quantified by studying a massive dataset containing over 55 million comments posted on Reddit in…
The DARPA Twitter Bot Challenge
V. S. Subrahmanian, Amos Azaria, Skylar Durst +18
A number of organizations ranging from terrorist groups such as ISIS to politicians and nation states reportedly conduct explicit campaigns to influence opinion on social media, po…
Portrait of an Online Shopper: Understanding and Predicting Consumer Behavior
Farshad Kooti, Kristina Lerman, Luca Maria Aiello +3
Consumer spending accounts for a large fraction of the US economic activity. Increasingly, consumer activity is moving to the web, where digital traces of shopping and purchases pr…
Evolution of Conversations in the Age of Email Overload
Farshad Kooti, Luca Maria Aiello, Mihajlo Grbovic +2
Email is a ubiquitous communications tool in the workplace and plays an important role in social interactions. Previous studies of email were largely based on surveys and limited t…
The Social Name-Letter Effect on Online Social Networks
Farshad Kooti, Gabriel Magno, Ingmar Weber
The Name-Letter Effect states that people have a preference for brands, places, and even jobs that start with the same letter as their own first name. So Sam might like Snickers an…
Network Weirdness: Exploring the Origins of Network Paradoxes
Farshad Kooti, Nathan O. Hodas, Kristina Lerman
Social networks have many counter-intuitive properties, including the "friendship paradox" that states, on average, your friends have more friends than you do. Recently, a variety…
Friendship Paradox Redux: Your Friends Are More Interesting Than You
Nathan O. Hodas, Farshad Kooti, Kristina Lerman
Feld's friendship paradox states that "your friends have more friends than you, on average." This paradox arises because extremely popular people, despite being rare, are overrepre…