Luca Belli, Ph.D
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Research

All Talks Research Event
01 Nov, 2022
Research
Algorithmic amplification of politics on Twitter
01 Nov
Research

Algorithmic amplification of politics on Twitter →

Based on a massive-scale experiment involving millions of Twitter users, this study carries out the most comprehensive audit of an algorithmic recommender system and its effects on political content. Results unveil that the political right enjoys higher amplification compared to the political left.
12 Aug, 2022
Research
Measuring disparate outcomes of content recommendation algorithms with distributional inequality metrics
12 Aug
Research

Measuring disparate outcomes of content recommendation algorithms with distributional inequality metrics →

In recent years, many examples of the potential harms caused by machine learning systems have come to the forefront. Practitioners in the field of algorithmic bias and fairness have developed a suite of metrics to capture one aspect of these harms.
03 Mar, 2021
Research
From Optimizing Engagement to Measuring Value
03 Mar
Research

From Optimizing Engagement to Measuring Value →

Most recommendation engines today are based on predicting user engagement, e.g. predicting whether a user will click on an item or not. However, there is potentially a large gap between engagement signals and a desired notion of "value" that is worth optimizing for.
08 Aug, 2020
Research
Assessing demographic bias in named entity recognition
08 Aug
Research

Assessing demographic bias in named entity recognition →

Named Entity Recognition (NER) is often the first step towards automated Knowledge Base (KB) generation from raw text. In this work, we assess the bias in various Named Entity Recognition (NER) systems for English across different demographic groups with synthetically generated corpora.
28 Apr, 2020
Research
Privacy-Aware Recommender Systems Challenge on Twitter's Home Timeline
28 Apr
Research

Privacy-Aware Recommender Systems Challenge on Twitter's Home Timeline →

Recommender systems constitute the core engine of most social network platforms, aiming to maximize user satisfaction along with other key business objectives. The implicit feedback provided by users on Tweets through their engagements on the Home Timeline has only been explored to a limited extent.
Luca Belli, Ph.D
Luca Belli, Ph.D © 2025. Published with Ghost & Rand