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Leonhard Hennig

dblp:75/5907 · DBLP profile ↗
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17ranked-venue papers
2as first author
3since 2021 · last 2024
0000-0002-9594-2011ORCID · corroborated

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 15 · 2 first-author · 3 since 2021Graphics, computer vision, multimedia, augmented reality and games · 2 · 1 first-authorDatabases, data management, data science and information retrieval · 1Human-computer interaction and ubiquitous computing · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
6 papers
Information extraction and text analysis · 68% Language models and text generation · 12% Machine translation · 8%
Software engineering, system software, and programming languages
1 paper
Empirical software engineering · 100%

Topics — the 13 heaviest of 14, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Natural language and speech › Information extraction and text analysis
relation extraction
2.552023
MultiTACRED: A Multilingual Version of the TAC Relation Extraction Dataset · ACL (1) 2023
Multilingual Relation Classification via Efficient and Effective Prompting · EMNLP 2022
TACRED Revisited: A Thorough Evaluation of the TACRED Relation Extraction Task · ACL 2020
Natural language and speech › Machine translation
annotation projection
0.712023
MultiTACRED: A Multilingual Version of the TAC Relation Extraction Dataset · ACL (1) 2023
Natural language and speech › Information extraction and text analysis › dataset construction
multilingual corpus construction
0.712023
MultiTACRED: A Multilingual Version of the TAC Relation Extraction Dataset · ACL (1) 2023
Natural language and speech › Information extraction and text analysis › relation extraction
multilingual relation extraction
0.712023
MultiTACRED: A Multilingual Version of the TAC Relation Extraction Dataset · ACL (1) 2023
Natural language and speech › Language models and text generation › prompting
multilingual prompting
0.612022
Multilingual Relation Classification via Efficient and Effective Prompting · EMNLP 2022
Computer vision › Vision and language › vision-language model
prompt learning
0.612022
Multilingual Relation Classification via Efficient and Effective Prompting · EMNLP 2022
Natural language and speech › Information extraction and text analysis › relation extraction
relation classification
0.612022
Multilingual Relation Classification via Efficient and Effective Prompting · EMNLP 2022
Natural language and speech › Information extraction and text analysis
linguistic probing
0.412020
Probing Linguistic Features of Sentence-Level Representations in Relation Extraction · ACL 2020
Machine learning › Representation and self-supervised learning
probing
0.412020
Probing Linguistic Features of Sentence-Level Representations in Relation Extraction · ACL 2020
Natural language and speech › Information extraction and text analysis › relation extraction
distant supervision
0.412019
Fine-tuning Pre-Trained Transformer Language Models to Distantly Supervised Relation Extraction · ACL (1) 2019
Natural language and speech › Language models and text generation › large language model › large language model adaptation
pre-trained language model fine-tuning
0.412019
Fine-tuning Pre-Trained Transformer Language Models to Distantly Supervised Relation Extraction · ACL (1) 2019
Natural language and speech › Information extraction and text analysis
entity linking
0.212015
Multi-Objective Optimization for the Joint Disambiguation of Nouns and Named Entities · ACL (1) 2015
Natural language and speech › Information extraction and text analysis
word sense disambiguation
0.212015
Multi-Objective Optimization for the Joint Disambiguation of Nouns and Named Entities · ACL (1) 2015

Methods — techniques the papers use, named apart from their topics

manual annotation validation · 0.9error categorization · 0.9transfer learning · 0.7machine translation · 0.7fine-tuning · 0.7translation · 0.6prompt tuning · 0.6probing tasks · 0.4encoder architecture comparison · 0.4GPT fine-tuning · 0.4
YearPublicationVenuePosition
2024 Enhancing Editorial Tasks: A Case Study on Rewriting Customer Help Page Contents Using Large Language Models
abstract
In this paper, we investigate the use of large language models (LLMs) to enhance the editorial process of rewriting customer help pages.We introduce a German-language dataset comprising Frequently Asked Question-Answer pairs, presenting both raw drafts and their revisions by professional editors.On this dataset, we evaluate the performance of four large language models (LLM) through diverse prompts tailored for the rewriting task.We conduct automatic evaluations of content and text quality using ROUGE, BERTScore, and ChatGPT.Furthermore, we let professional editors assess the helpfulness of automatically generated FAQ revisions for editorial enhancement.Our findings indicate that LLMs can produce FAQ reformulations beneficial to the editorial process.We observe minimal performance discrepancies among LLMs for this task, and our survey on helpfulness underscores the subjective nature of editors' perspectives on editorial refinement.
Aleksandra Gabryszak, Daniel Röder, Arne Binder, Luca Sion, Leonhard Hennig
INLG5
2023 MultiTACRED: A Multilingual Version of the TAC Relation Extraction Dataset
abstract
Relation extraction (RE) is a fundamental task in information extraction, whose extension to multilingual settings has been hindered by the lack of supervised resources comparable in size to large English datasets such as TACRED (Zhang et al., 2017).To address this gap, we introduce the MultiTACRED dataset, covering 12 typologically diverse languages from 9 language families, which is created by machine-translating TACRED instances and automatically projecting their entity annotations.We analyze translation and annotation projection quality, identify error categories, and experimentally evaluate fine-tuned pretrained mono-and multilingual language models in common transfer learning scenarios.Our analyses show that machine translation is a viable strategy to transfer RE instances, with native speakers judging more than 83% of the translated instances to be linguistically and semantically acceptable.We find monolingual RE model performance to be comparable to the English original for many of the target languages, and that multilingual models trained on a combination of English and target language data can outperform their monolingual counterparts.However, we also observe a variety of translation and annotation projection errors, both due to the MT systems and linguistic features of the target languages, such as pronoun-dropping, compounding and inflection, that degrade dataset quality and RE model performance.
Leonhard Hennig, Philippe Thomas 0002, Sebastian Möller 0001
ACL (1)1
2022 Multilingual Relation Classification via Efficient and Effective Prompting
abstract
Prompting pre-trained language models has achieved impressive performance on various NLP tasks, especially in low data regimes.Despite the success of prompting in monolingual settings, applying prompt-based methods in multilingual scenarios has been limited to a narrow set of tasks, due to the high cost of handcrafting multilingual prompts.In this paper, we present the first work on prompt-based multilingual relation classification (RC), by introducing an efficient and effective method that constructs prompts from relation triples and involves only minimal translation for the class labels.We evaluate its performance in fully supervised, few-shot and zero-shot scenarios, and analyze its effectiveness across 14 languages, prompt variants, and English-task training in cross-lingual settings.We find that in both fully supervised and few-shot scenarios, our prompt method beats competitive baselines: fine-tuning XLM-R EM and null prompts.It also outperforms the random baseline by a large margin in zero-shot experiments.Our method requires little in-language knowledge and can be used as a strong baseline for similar multilingual classification tasks. Titanic is directed byCameron .Titanic is directed by Cameron .
David Harbecke, Leonhard Hennig
EMNLP3
2020 Probing Linguistic Features of Sentence-Level Representations in Relation Extraction
abstract
Despite the recent progress, little is known about the features captured by state-of-the-art neural relation extraction (RE) models.Common methods encode the source sentence, conditioned on the entity mentions, before classifying the relation.However, the complexity of the task makes it difficult to understand how encoder architecture and supporting linguistic knowledge affect the features learned by the encoder.We introduce 14 probing tasks targeting linguistic properties relevant to RE, and we use them to study representations learned by more than 40 different encoder architecture and linguistic feature combinations trained on two datasets, TACRED and SemEval 2010 Task 8. We find that the bias induced by the architecture and the inclusion of linguistic features are clearly expressed in the probing task performance.For example, adding contextualized word representations greatly increases performance on probing tasks with a focus on named entity and part-of-speech information, and yields better results in RE.In contrast, entity masking improves RE, but considerably lowers performance on entity type related probing tasks.
Christoph Alt, Aleksandra Gabryszak, Leonhard Hennig
ACL3
2020 TACRED Revisited: A Thorough Evaluation of the TACRED Relation Extraction Task
abstract
TACRED (Zhang et al., 2017) is one of the largest, most widely used crowdsourced datasets in Relation Extraction (RE).But, even with recent advances in unsupervised pretraining and knowledge enhanced neural RE, models still show a high error rate.In this paper, we investigate the questions: Have we reached a performance ceiling or is there still room for improvement?And how do crowd annotations, dataset, and models contribute to this error rate?To answer these questions, we first validate the most challenging 5K examples in the development and test sets using trained annotators.We find that label errors account for 8% absolute F1 test error, and that more than 50% of the examples need to be relabeled.On the relabeled test set the average F1 score of a large baseline model set improves from 62.1 to 70.1.After validation, we analyze misclassifications on the challenging instances, categorize them into linguistically motivated error groups, and verify the resulting error hypotheses on three state-of-the-art RE models.We show that two groups of ambiguous relations are responsible for most of the remaining errors and that models may adopt shallow heuristics on the dataset when entities are not masked.
Christoph Alt, Aleksandra Gabryszak, Leonhard Hennig
ACL3
2020 Abstractive Text Summarization based on Language Model Conditioning and Locality Modeling
abstract
We explore to what extent knowledge about the pre-trained language model that is used is beneficial for the task of abstractive summarization. To this end, we experiment with conditioning the encoder and decoder of a Transformer-based neural model on the BERT language model. In addition, we propose a new method of BERT-windowing, which allows chunk-wise processing of texts longer than the BERT window size. We also explore how locality modeling, i.e., the explicit restriction of calculations to the local context, can affect the summarization ability of the Transformer. This is done by introducing 2-dimensional convolutional self-attention into the first layers of the encoder. The results of our models are compared to a baseline and the state-of-the-art models on the CNN/Daily Mail dataset. We additionally train our model on the SwissText dataset to demonstrate usability on German. Both models outperform the baseline in ROUGE scores on two datasets and show its superiority in a manual qualitative analysis.
Dmitrii Aksenov, Julián Moreno Schneider, Peter Bourgonje, Robert Schwarzenberg, Leonhard Hennig, Georg Rehm
LREC5
2019 Fine-tuning Pre-Trained Transformer Language Models to Distantly Supervised Relation Extraction
abstract
Distantly supervised relation extraction is widely used to extract relational facts from text, but suffers from noisy labels.Current relation extraction methods try to alleviate the noise by multi-instance learning and by providing supporting linguistic and contextual information to more efficiently guide the relation classification.While achieving state-of-the-art results, we observed these models to be biased towards recognizing a limited set of relations with high precision, while ignoring those in the long tail.To address this gap, we utilize a pre-trained language model, the OpenAI Generative Pre-trained Transformer (GPT) (Radford et al., 2018).The GPT and similar models have been shown to capture semantic and syntactic features, and also a notable amount of "common-sense" knowledge, which we hypothesize are important features for recognizing a more diverse set of relations.By extending the GPT to the distantly supervised setting, and fine-tuning it on the NYT10 dataset, we show that it predicts a larger set of distinct relation types with high confidence.Manual and automated evaluation of our model shows that it achieves a state-of-the-art AUC score of 0.422 on the NYT10 dataset, and performs especially well at higher recall levels.
Christoph Alt, Marc Hübner, Leonhard Hennig
ACL (1)3
2019 A Crowdsourcing Approach to Evaluate the Quality of Query-based Extractive Text Summaries
abstract
High cost and time consumption are concurrent barriers for research and application of automated summarization. In order to explore options to overcome this barrier, we analyze the feasibility and appropriateness of micro-task crowdsourcing for evaluation of different summary quality characteristics and report an ongoing work on the crowdsourced evaluation of query-based extractive text summaries. To do so, we assess and evaluate a number of linguistic quality factors such as grammaticality, non-redundancy, referential clarity, focus and structure & coherence. Our first results imply that referential clarity, focus and structure & coherence are the main factors effecting the perceived summary quality by crowdworkers. Further, we compare these results using an initial set of expert annotations that is currently being collected, as well as an initial set of automatic quality score ROUGE for summary evaluation. Preliminary results show that ROUGE does not correlate with linguistic quality factors, regardless if assessed by crowd or experts. Further, crowd and expert ratings show highest degree of correlation when assessing low quality summaries. Assessments increasingly divert when attributing high quality judgments.
Neslihan Iskender, Aleksandra Gabryszak, Tim Polzehl, Leonhard Hennig, Sebastian Möller 0001
QoMEX4
2018 A German Corpus for Fine-Grained Named Entity Recognition and Relation Extraction of Traffic and Industry Events
Martin Schiersch, Veselina Mironova, Maximilian Schmitt, Philippe Thomas 0002, Aleksandra Gabryszak, Leonhard Hennig
LREC6
2018 A Corpus Study and Annotation Schema for Named Entity Recognition and Relation Extraction of Business Products
Saskia Schön, Veselina Mironova, Aleksandra Gabryszak, Leonhard Hennig
LREC4
2018 Question Answering for Technical Customer Support
Qingliang Miao, Ji Geng 0002, Christoph Alt, Robert Schwarzenberg, Leonhard Hennig, Changjian Hu, Feiyu Xu 0001
NLPCC (1)6
2016 TEG-REP: A corpus of Textual Entailment Graphs based on Relation Extraction Patterns
Kathrin Eichler, Feiyu Xu 0001, Hans Uszkoreit, Leonhard Hennig, Sebastian Krause
LREC4
2016 Relation- and Phrase-level Linking of FrameNet with Sar-graphs
Aleksandra Gabryszak, Sebastian Krause, Leonhard Hennig, Feiyu Xu 0001, Hans Uszkoreit
LREC3
2016 Sar-graphs: A language resource connecting linguistic knowledge with semantic relations from knowledge graphs
Sebastian Krause, Leonhard Hennig, Andrea Moro 0001, Dirk Weissenborn, Feiyu Xu 0001, Hans Uszkoreit, Roberto Navigli
J. Web Semant.2
2015 Multi-Objective Optimization for the Joint Disambiguation of Nouns and Named Entities
abstract
In this paper, we present a novel approach to joint word sense disambiguation (WSD) and entity linking (EL) that combines a set of complementary objectives in an extensible multi-objective formalism. During disambiguation the system performs continuous optimization to find optimal probability distributions over candidate senses. The performance of our system on nominal WSD as well as EL improves state-ofthe-art results on several corpora. These improvements demonstrate the importance of combining complementary objectives in a joint model for robust disambiguation.
Dirk Weissenborn, Leonhard Hennig, Feiyu Xu 0001, Hans Uszkoreit
ACL (1)2
2012 GerNED: A German Corpus for Named Entity Disambiguation
Danuta Ploch, Leonhard Hennig, Angelina Duka, Ernesto William De Luca, Sahin Albayrak
LREC2
2008 Tailoring text for automatic layouting of newspaper pages
abstract
We consider layouting news articles on a page as a cutting and packing problem with output maximization. We propose to tailor news articles by employing automatic summarization to find new solutions for the packing problem. Tailoring text items allows us to use an efficient isin-approximate greedy layouting algorithm, which scales well for larger data sets, to explore the search space. We also propose a function for adjusting the value of summarized articles. Our results show that the overall solution value as well as the individual quality of articles are notably improved, with the solution value in some cases even exceeding the optimum score achievable by an exhaustive search without summarization.
Leonhard Hennig, Thomas Strecker
ICPR1