Towards Harmful Erotic Content Detection through Coreference-Driven
  Contextual Analysis
Inez Okulska Emilia Wiśnios
Adult content detection still poses a great challenge for automation.
Existing classifiers primarily focus on distinguishing between erotic and
non-erotic texts. However, they often need more nuance in assessing the
potential harm. Unfortunately, the content of this nature falls beyond the
reach of generative models due to its potentially harmful nature. Ethical
restrictions prohibit large language models (LLMs) from analyzing and
classifying harmful erotics, let alone generating them to create synthetic
datasets for other neural models. In such instances where data is scarce and
challenging, a thorough analysis of the structure of such texts rather than a
large model may offer a viable solution. Especially given that harmful erotic
narratives, despite appearing similar to harmless ones, usually reveal their
harmful nature first through contextual information hidden in the non-sexual
parts of the narrative.
  This paper introduces a hybrid neural and rule-based context-aware system
that leverages coreference resolution to identify harmful contextual cues in
erotic content. Collaborating with professional moderators, we compiled a
dataset and developed a classifier capable of distinguishing harmful from
non-harmful erotic content. Our hybrid model, tested on Polish text,
demonstrates a promising accuracy of 84% and a recall of 80%. Models based on
RoBERTa and Longformer without explicit usage of coreference chains achieved
significantly weaker results, underscoring the importance of coreference
resolution in detecting such nuanced content as harmful erotics. This approach
also offers the potential for enhanced visual explainability, supporting
moderators in evaluating predictions and taking necessary actions to address
harmful content.