Papers by Jan Philip Wahle
BRIGHTER: BRIdging the Gap in Human-Annotated Textual Emotion Recognition Datasets for 28 Languages (2025.acl-long)
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Shamsuddeen Hassan Muhammad, Nedjma Ousidhoum, Idris Abdulmumin, Jan Philip Wahle, Terry Ruas, Meriem Beloucif, Christine de Kock, Nirmal Surange, Daniela Teodorescu, Ibrahim Said Ahmad, David Ifeoluwa Adelani, Alham Fikri Aji, Felermino D. M. A. Ali, Ilseyar Alimova, Vladimir Araujo, Nikolay Babakov, Naomi Baes, Ana-Maria Bucur, Andiswa Bukula, Guanqun Cao, Rodrigo Tufiño, Rendi Chevi, Chiamaka Ijeoma Chukwuneke, Alexandra Ciobotaru, Daryna Dementieva, Murja Sani Gadanya, Robert Geislinger, Bela Gipp, Oumaima Hourrane, Oana Ignat, Falalu Ibrahim Lawan, Rooweither Mabuya, Rahmad Mahendra, Vukosi Marivate, Alexander Panchenko, Andrew Piper, Charles Henrique Porto Ferreira, Vitaly Protasov, Samuel Rutunda, Manish Shrivastava, Aura Cristina Udrea, Lilian Diana Awuor Wanzare, Sophie Wu, Florian Valentin Wunderlich, Hanif Muhammad Zhafran, Tianhui Zhang, Yi Zhou, Saif M. Mohammad
| Challenge: | Emotion recognition is an umbrella term for several NLP tasks, but most work on high-resource languages has focused on low-resourced languages. |
| Approach: | They propose to use emotion recognition to describe perceived emotions in 28 different languages and across several domains to identify and annotate the datasets. |
| Outcome: | The proposed datasets cover low-resource languages from Africa, Asia, Eastern Europe, and Latin America, with instances labeled by fluent speakers. |
What’s under the hood: Investigating Automatic Metrics on Meeting Summarization (2024.findings-emnlp)
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| Challenge: | Existing evaluation metrics do not capture meeting-specific errors, leading to ineffective assessment. |
| Approach: | They examine the relationship between established metrics and human evaluations to determine what challenges and errors are captured by correlating metric scores with human evaluation. |
| Outcome: | The proposed measures show weak correlations with human evaluations and a third of the correlations show error masking. |
Who Watches the Watchmen? Humans Disagree With Translation Metrics on Unseen Domains (2026.findings-acl)
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| Challenge: | Existing studies that analyze unseen domains vary translation systems, annotators, or evaluation conditions, confounding domain effects with human annotation noise. |
| Approach: | They propose to use human error span annotations to evaluate translations of six translation systems across one seen news domain and two unseen technical domains to address these biases. |
| Outcome: | The proposed model improves on the human annotations in two unseen domains and on the news domains. |
Voting or Consensus? Decision-Making in Multi-Agent Debate (2025.findings-acl)
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| Challenge: | Increasing the number of agents improves performance, while more discussion rounds before voting reduces it. |
| Approach: | They propose two new methods to improve multi-agent debates by increasing agent diversity and reducing discussion rounds before voting. |
| Outcome: | The proposed methods improve task performance by up to 3.3% with AAD and up to 7.4% with CI. |
ALDEN: Reinforcement Learning for Active Navigation and Evidence Gathering in Long Documents (2026.acl-long)
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| Challenge: | Visually rich documents (VRDs) combine text, tables, and figures within complex, semantically structured layouts. |
| Approach: | They propose a multi-turn reinforcement learning framework that fine-tunes VLMs as interactive agents capable of actively navigating long, visually rich documents. |
| Outcome: | The proposed framework achieves state-of-the-art on five long-document benchmarks. |
MALLM: Multi-Agent Large Language Models Framework (2025.emnlp-demos)
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| Challenge: | Multi-agent debate (MAD) has demonstrated the ability to augment collective intelligence by scaling test-time compute and leveraging expertise. |
| Approach: | They propose an open-source framework that enables systematic analysis of multi-agent debates. |
| Outcome: | The proposed framework enables systematic analysis of multi-agent debate components. |
D3: A Massive Dataset of Scholarly Metadata for Analyzing the State of Computer Science Research (2022.lrec-1)
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| Challenge: | DBLP is the largest open-access repository of scientific articles on computer science and provides metadata associated with publications, authors, and venues. |
| Approach: | They extracted metadata from more than 6 million DBLP publications to create the DB3 Discovery Dataset (D3) . they found that computer science is a growing research field (15% annually), with an active and collaborative researcher community. |
| Outcome: | The DBLP Discovery Dataset (D3) can be used to identify trends in research activity, productivity, focus, bias, accessibility, and impact of computer science research. |
Citation Amnesia: On The Recency Bias of NLP and Other Academic Fields (2025.coling-main)
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| Challenge: | citation age is a key factor in determining whether older works are cited in scientific journals or not. |
| Approach: | They examine the tendency of NLP to cite older work across 20 fields of study over 43 years (1980–2023) . they put NLP’s propensity to citation older work in the context of these 20 other fields to see whether differences can be observed . |
| Outcome: | The trend is strongest in NLP and ML research (-12.8% and -5.5% in citation age from previous peaks) |
Paraphrase Types Elicit Prompt Engineering Capabilities (2024.emnlp-main)
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| Challenge: | Until now, it has been unknown how variations in the linguistic expression of prompts affect language models. |
| Approach: | They evaluate which linguistic features influence models through paraphrase types . they found that changes in morphology and lexicon showed promise in improving prompts . |
| Outcome: | The results show that paraphrases can improve language models' performance . the authors show that changes in morphology and lexicon can improve prompts . |
DimABSA: Building Multilingual and Multidomain Datasets for Dimensional Aspect-Based Sentiment Analysis (2026.acl-long)
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Lung-Hao Lee, Liang-Chih Yu, Natalia V Loukachevitch, Ilseyar Alimova, Alexander Panchenko, Tzu-Mi Lin, Zhe-Yu Xu, Jian-Yu Zhou, Guangmin Zheng, Jin Wang, Sharanya Awasthi, Jonas Becker, Jan Philip Wahle, Terry Ruas, Shamsuddeen Hassan Muhammad, Saif M. Mohammad
| Challenge: | Existing ABSA research relies on coarse-grained categorical labels, which limits its ability to capture nuanced affective states. |
| Approach: | They propose a dimensional approach that represents sentiment with continuous valence–arousal (VA) scores, enabling fine-grained analysis at both the aspect and sentiment levels. |
| Outcome: | The proposed approach represents sentiment with continuous valence–arousal (VA) scores, enabling fine-grained analysis at both the aspect and sentiment levels. |
You need to MIMIC to get FAME: Solving Meeting Transcript Scarcity with Multi-Agent Conversations (2025.findings-acl)
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| Challenge: | Existing tools for meeting summarization are limited due to privacy and expensive manual annotation. |
| Approach: | They propose a meeting synthesis framework that generates meeting transcripts on a given knowledge source by defining psychologically grounded participant profiles, outlining the conversation, and orchestrating a large language model (LLM) debate. |
| Outcome: | The proposed framework generates meeting transcripts on a given knowledge source by defining psychologically grounded participant profiles, outlining the conversation, and orchestrating a large language model debate. |
TrojanStego: Your Language Model Can Secretly Be A Steganographic Privacy Leaking Agent (2025.emnlp-main)
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| Challenge: | Existing work has focused on the (un)intended leakage of sensitive information through LLM outputs. |
| Approach: | They propose a threat model that embeds context information into natural-looking outputs via linguistic steganography without requiring explicit control over inference inputs. |
| Outcome: | The proposed model transmits 32-bit secrets with 87% accuracy on held-out prompts and can reach over 97% accuracy using majority voting across three generations. |
How Large Language Models are Transforming Machine-Paraphrase Plagiarism (2022.emnlp-main)
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| Challenge: | Autoregressive paraphrasing tools can be used to generate convincing plagiarized texts with minimal effort. |
| Approach: | They evaluate the detection performance of large autoregressive models for machine-paraphrase generation on scientific articles from arXiv, student theses, and Wikipedia. |
| Outcome: | The proposed models generate paraphrases indistinguishable from original work and human experts rate the quality of generated examples as high as originals. |
We are Who We Cite: Bridges of Influence Between Natural Language Processing and Other Academic Fields (2023.emnlp-main)
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| Challenge: | In this paper, we quantify the degree of influence between 23 fields of study and NLP (on each other) |
| Approach: | They quantify the degree of influence between 23 fields of study and NLP on each other . they find that cross-field engagement of NLP has declined from 0.58 in 1980 to 0.31 in 2022 . |
| Outcome: | The proposed Citation Field Diversity Index (CFDI) has declined from 0.58 in 1980 to 0.31 in 2022, the authors show . |
Towards Human Understanding of Paraphrase Types in Large Language Models (2025.coling-main)
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| Challenge: | Current paraphrase evaluations of language models use binary approaches, offering limited interpretability of specific text changes. |
| Approach: | They introduce a dataset of 800 sentence-level and word-level annotations by 15 annotators and a human preference ranking of paraphrases with different types. |
| Outcome: | The proposed model can generate simple APTs, but struggle with complex structures (e.g., subordination changes). |
Stay Focused: Problem Drift in Multi-Agent Debate (2026.findings-eacl)
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| Challenge: | Multi-agent debates have shown promise for solving knowledge and reasoning tasks, but they are limited when solving complex problems that require longer reasoning chains. |
| Approach: | They propose a method to detect problem drift and propose 'driFTJudge' which mitigates 31% of problem drift cases. |
| Outcome: | The proposed method mitigates 31% of problem drift cases and is based on a set of ten tasks across ten different tasks. |
SPaRC: A Spatial Pathfinding Reasoning Challenge (2025.emnlp-main)
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| Challenge: | Existing reasoning datasets saturate and fail to test abstract, multi-step problems, especially pathfinding and complex rule constraint satisfaction. |
| Approach: | They propose to use a spatial few-shot grid to evaluate spatial and rule-based reasoning with 1,000 2D grid puzzles. |
| Outcome: | The proposed model can be used to evaluate spatial reasoning and improve its accuracy. |
Text-Guided Image Clustering (2024.eacl-long)
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Andreas Stephan, Lukas Miklautz, Kevin Sidak, Jan Philip Wahle, Bela Gipp, Claudia Plant, Benjamin Roth
| Challenge: | Current image clustering methods neglect the use of generated textual descriptions. |
| Approach: | They propose to use image captioning and visual question-answering to cluster images . they propose a new approach to inject task- or domain knowledge into image clustering . |
| Outcome: | The proposed method outperforms existing methods on eight image clustering datasets. |
The Language of Interoception: Examining Embodiment and Emotion Through a Corpus of Body Part Mentions (2025.findings-emnlp)
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| Challenge: | 5% to 10% of posts include body part mentions in English text . text containing BPMs tends to be more emotionally charged, even when the BPM is not used to describe a physical reaction to the emotion in the text. |
| Approach: | They create corpora of body part mentions in online English text with human annotations for the emotions of the person whose body part is mentioned. |
| Outcome: | The proposed study is the first to investigate the connection between emotion, embodiment, and everyday language in a large sample of natural language data. |
Multi-Agent Reasoning Improves Compute Efficiency: Pareto-Optimal Test-Time Scaling (2026.acl-srw)
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| Challenge: | Inference methods that prioritize raw performance over cost-effective compute usage are not efficient for real-world applications. |
| Approach: | They evaluate inference scaling strategies to determine their computational efficiency tradeoffs . they find debate and mixture-of-agents outperform self-consistency by 1.3% and 2.7% points . |
| Outcome: | The proposed scaling strategies outperform self-consistency, self-refinement, multi-agent debate and mixture-of-a agents on reasoning tasks. |
Paraphrase Types for Generation and Detection (2023.emnlp-main)
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| Challenge: | Current approaches to paraphrase generation and detection ignore the intricate linguistic properties of language. |
| Approach: | They propose two tasks to consider specific linguistic perturbations at particular text positions. |
| Outcome: | The proposed tasks address the shortcoming of ignoring the linguistic properties of language. |
The Elephant in the Room: Analyzing the Presence of Big Tech in Natural Language Processing Research (2023.acl-long)
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Mohamed Abdalla, Jan Philip Wahle, Terry Ruas, Aurélie Névéol, Fanny Ducel, Saif Mohammad, Karen Fort
| Challenge: | Recent advances in deep learning methods for natural language processing (NLP) have created new business opportunities and made NLP research critical for industry development. |
| Approach: | They examine industry presence in the field since the early 90s and characterize it using a corpus of 78,187 NLP publications and 701 resumes of NLP publication authors. |
| Outcome: | The authors find that industry presence among NLP authors has been steady before a steep increase over the past five years (180% growth from 2017 to 2022). |
MAGPIE: Multi-Task Analysis of Media-Bias Generalization with Pre-Trained Identification of Expressions (2024.lrec-main)
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Tomáš Horych, Martin Paul Wessel, Jan Philip Wahle, Terry Ruas, Jerome Waßmuth, André Greiner-Petter, Akiko Aizawa, Bela Gipp, Timo Spinde
| Challenge: | Existing approaches to media bias detection lack generalizability, resulting in limited generalizarability. |
| Approach: | They propose a large-scale multi-task pre-training approach specifically tailored for media bias detection that can be used to train 59 bias-related tasks. |
| Outcome: | The proposed approach outperforms existing methods on the BABE dataset with a relative improvement of 3.3% F1-score. |