Niyati Malhotra
Author directory2026
GENDIS: Gender-Related Discourse and Stance in Multilingual YouTube Comments from India, Kenya, and Nigeria
Luise Koch | Manuel Tonneau | Niyati Malhotra | Sunny Rai | Ana Maria Munoz Boudet | Victor Orozco-Olvera | Samuel Fraiberger | Sharath Chandra Guntuku
Proceedings of the 10th Workshop on Online Abuse and Harms (WOAH)
Luise Koch | Manuel Tonneau | Niyati Malhotra | Sunny Rai | Ana Maria Munoz Boudet | Victor Orozco-Olvera | Samuel Fraiberger | Sharath Chandra Guntuku
Proceedings of the 10th Workshop on Online Abuse and Harms (WOAH)
Research on gender-related online content is often operationalized through harm-centered tasks that collapse non-harmful gender-related and unrelated content, while existing datasets remain concentrated in high-resource languages and Global North settings. To bridge these gaps, we introduce GENDIS, a dataset of 9,600 multilingual, human-annotated YouTube comments from India, Kenya, and Nigeria (3,200 per country), annotated using a two-level framework that first identifies whether gender is referenced and then classifies gender-related content as negative, positive, or neutral. This separation provides a denominator for gender-related discourse independent of harm, enabling both prevalence estimation and characterization of its evaluative range. In the uniform random stratum, 23.8-35.0% of comments are gender-related, and among those with a resolved stance, 82% are neutral or positive. Across models, gender-reference detection is substantially easier than stance classification, especially for positive and neutral speech. Lightly supervised classifiers match frontier zero-shot large language models at substantially lower cost and outperform generic toxicity detection, while cross-country transfer remains limited. GENDIS provides a locally grounded resource for measuring when gender is invoked online and how that reference is framed.
Different Demographic Cues Yield Inconsistent Conclusions About LLM Personalization and Bias
Manuel Tonneau | Neil Sehgal | Niyati Malhotra | Sharif Kazemi | Victor Orozco-Olvera | Ana Maria Munoz Boudet | Lakshmi Subramanian | Samuel Fraiberger | Sharath Chandra Guntuku | Valentin Hofmann
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Manuel Tonneau | Neil Sehgal | Niyati Malhotra | Sharif Kazemi | Victor Orozco-Olvera | Ana Maria Munoz Boudet | Lakshmi Subramanian | Samuel Fraiberger | Sharath Chandra Guntuku | Valentin Hofmann
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Demographic cue-based evaluation is widely used to study how large language models (LLMs) adapt their responses to signaled demographic attributes within and across groups. This approach typically relies on a single cue (e.g., names) as a proxy for group membership, implicitly treating different cues as interchangeable operationalizations of a single underlying identity-conditioned behavior. We test this assumption in realistic advice-seeking interactions spanning 14.8 million prompts, focusing on race and gender in a U.S. context. We find that cues for the same group induce only partially overlapping changes in model responses, yielding inconsistent conclusions about personalization, while bias conclusions are unstable, with both magnitude and direction of group differences varying across cues. We further show that these inconsistencies reflect differences in cue–group association strength and linguistic features bundled within cues that shape model responses. Together, our findings suggest that demographic conditioning in LLMs is not a cue-invariant category-level parameter but depends fundamentally on how identity is cued, reflecting responses to linguistic signals rather than stable demographic categories. We therefore call for multi-cue, mechanism-aware evaluations as a foundation for robust and interpretable claims about demographic variation in LLM responses.
2025
HateDay: Insights from a Global Hate Speech Dataset Representative of a Day on Twitter
Manuel Tonneau | Diyi Liu | Niyati Malhotra | Scott A. Hale | Samuel Fraiberger | Victor Orozco-Olvera | Paul Röttger
Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Manuel Tonneau | Diyi Liu | Niyati Malhotra | Scott A. Hale | Samuel Fraiberger | Victor Orozco-Olvera | Paul Röttger
Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
To address the global challenge of online hate speech, prior research has developed detection models to flag such content on social media. However, due to systematic biases in evaluation datasets, the real-world effectiveness of these models remains unclear, particularly across geographies. We introduce HateDay, the first global hate speech dataset representative of social media settings, constructed from a random sample of all tweets posted on September 21, 2022 and covering eight languages and four English-speaking countries. Using HateDay, we uncover substantial variation in the prevalence and composition of hate speech across languages and regions. We show that evaluations on academic datasets greatly overestimate real-world detection performance, which we find is very low, especially for non-European languages. Our analysis identifies key drivers of this gap, including models’ difficulty to distinguish hate from offensive speech and a mismatch between the target groups emphasized in academic datasets and those most frequently targeted in real-world settings. We argue that poor model performance makes public models ill-suited for automatic hate speech moderation and find that high moderation rates are only achievable with substantial human oversight. Our results underscore the need to evaluate detection systems on data that reflects the complexity and diversity of real-world social media.