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Yphtach Lelkes

2 accepted papers

2026

Predicting Session Termination and Retention on X from Fine-Grained Interaction Logs (Student Abstract)

AAAI 2026technical

We study when users end a session on X using high-resolution interaction logs from 215 US participants collected over four weeks. Sessions are defined via data-driven inter-activity gaps, and each session is encoded by fine-grained activity counts and duration (versus a simple activity ratio baselin

Cited by 0SourcePDFScholar
2025

Model-Dependent Moderation: Inconsistencies in Hate Speech Detection Across LLM-based Systems

ACL 2025finding

Content moderation systems powered by large language models (LLMs) are increasingly deployed to detect hate speech; however, no systematic comparison exists between different systems. If different systems produce different outcomes for the same content, it undermines consistency and predictability,…

Cited by 0SourcePDFScholar