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Gabriella Lapesa

15 accepted papers

2025

It Is Not Only the Negative that Deserves Attention! Understanding, Generation & Evaluation of (Positive) Moderation

NAACL 2025long

Moderation is essential for maintaining and improving the quality of online discussions. This involves: (1) countering negativity, e.g. hate speech and toxicity, and (2) promoting positive discourse, e.g. broadening the discussion to involve other users and perspectives. While significant efforts ha…

2025

Mining the uncertainty patterns of humans and models in the annotation of moral foundations and human values

ACL 2025long

The NLP community has converged on considering disagreement in annotation (or human label variation, HLV) as a constitutive feature of subjective tasks. This paper makes a further step by investigating the relationship between HLV and model uncertainty, and the impact of linguistic features of the i…

2025

PerspectiveMod: A Perspectivist Resource for Deliberative Moderation

EMNLP 2025

Human moderators in online discussions face a heterogeneous range of tasks, which go beyond content moderation, or policing. They also support and improve discussion quality, which is challenging to model (and evaluate) in NLP due to its inherent subjectivity and the scarcity of annotated resources.

2025

Tell Me What You Know About Sexism: Expert-LLM Interaction Strategies and Co-Created Definitions for Zero-Shot Sexism Detection

NAACL 2025findings

This paper investigates hybrid intelligence and collaboration between researchers of sexism and Large Language Models (LLMs), with afour-component pipeline. First, nine sexism researchers answer questions about their knowledge of sexism and of LLMs. They then participate in two interactive experimen…

2025

Towards a Perspectivist Turn in Argument Quality Assessment

NAACL 2025long

The assessment of argument quality depends on well-established logical, rhetorical, and dialectical properties that are unavoidably subjective: multiple valid assessments may exist, there is no unequivocal ground truth. This aligns with recent paths in machine learning, which embrace the co-existenc…

2024

Argument Quality Assessment in the Age of Instruction-Following Large Language Models

COLING 2024main

The computational treatment of arguments on controversial issues has been subject to extensive NLP research, due to its envisioned impact on opinion formation, decision making, writing education, and the like. A critical task in any such application is the assessment of an argument’s quality - but i…

Cited by 12SourcePDFScholar
2024

Self-reported Demographics and Discourse Dynamics in a Persuasive Online Forum

COLING 2024main

Research on language as interactive discourse underscores the deliberate use of demographic parameters such as gender, ethnicity, and class to shape social identities. For example, by explicitly disclosing one’s information and enforcing one’s social identity to an online community, the reception by…

2024

Toeing the Party Line: Election Manifestos as a Key to Understand Political Discourse on Twitter

EMNLP 2024finding

Political discourse on Twitter is a moving target: politicians continuously make statements about their positions. It is therefore crucial to track their discourse on social media to understand their ideological positions and goals. However, Twitter data is also challenging to work with since it is…

2023

Node Placement in Argument Maps: Modeling Unidirectional Relations in High & Low-Resource Scenarios

ACL 2023long

Argument maps structure discourse into nodes in a tree with each node being an argument that supports or opposes its parent argument. This format is more comprehensible and less redundant compared to an unstructured one. Exploring those maps and maintaining their structure by placing new arguments u…

Cited by 4SourcePDFScholar
2022

How to Translate Your Samples and Choose Your Shots? Analyzing Translate-train & Few-shot Cross-lingual Transfer

NAACL 2022findings

Translate-train or few-shot cross-lingual transfer can be used to improve the zero-shot performance of multilingual pretrained language models. Few-shot utilizes high-quality low-quantity samples (often manually translated from the English corpus ). Translate-train employs a machine translation of t…

2022

Improving Neural Political Statement Classification with Class Hierarchical Information

ACL 2022findings

Many tasks in text-based computational social science (CSS) involve the classification of political statements into categories based on a domain-specific codebook. In order to be useful for CSS analysis, these categories must be fine-grained. The typically skewed distribution of fine-grained categor…

2022

Reports of personal experiences and stories in argumentation: datasets and analysis

ACL 2022long

Reports of personal experiences or stories can play a crucial role in argumentation, as they represent an immediate and (often) relatable way to back up one’s position with respect to a given topic. They are easy to understand and increase empathy: this makes them powerful in argumentation. The impa…