Search Results for author: Ralf Krestel

Found 19 papers, 12 papers with code

Did You Enjoy the Last Supper? An Experimental Study on Cross-Domain NER Models for the Art Domain

1 code implementation NLP4DH (ICON) 2021 Alejandro Sierra-Múnera, Ralf Krestel

For the evaluation of the models, we employ a variety of source domain datasets and analyze how each source domain dataset impacts the performance of the different models for our target domain.

named-entity-recognition Named Entity Recognition +2

Modeling the Evolution of Word Senses with Force-Directed Layouts of Co-occurrence Networks

no code implementations ACL (LChange) 2021 Tim Reke, Robert Schwanhold, Ralf Krestel

In addition, we hope that jointly modeling semantic change and multiple senses of words results in improvements for the individual tasks.

Art Creation with Multi-Conditional StyleGANs

no code implementations23 Feb 2022 Konstantin Dobler, Florian Hübscher, Jan Westphal, Alejandro Sierra-Múnera, Gerard de Melo, Ralf Krestel

Our approach is based on the StyleGAN neural network architecture, but incorporates a custom multi-conditional control mechanism that provides fine-granular control over characteristics of the generated paintings, e. g., with regard to the perceived emotion evoked in a spectator.

Discovering Fine-Grained Semantics in Knowledge Graph Relations

no code implementations17 Feb 2022 Nitisha Jain, Ralf Krestel

To do this, we leverage the types of the entities associated with the relations and cluster the vector representations of entities and relations.

Question Answering

Multifaceted Domain-Specific Document Embeddings

1 code implementation NAACL 2021 Julian Risch, Philipp Hager, Ralf Krestel

Current document embeddings require large training corpora but fail to learn high-quality representations when confronted with a small number of domain-specific documents and rare terms.

Document Embedding Knowledge Graphs

PatentMatch: A Dataset for Matching Patent Claims & Prior Art

3 code implementations27 Dec 2020 Julian Risch, Nicolas Alder, Christoph Hewel, Ralf Krestel

For these reasons, we address the computer-assisted search for prior art by creating a training dataset for supervised machine learning called PatentMatch.

Information Retrieval Retrieval +1

A Dataset of Journalists' Interactions with Their Readership: When Should Article Authors Reply to Reader Comments?

1 code implementation19 Oct 2020 Julian Risch, Ralf Krestel

Based on this data, we formulate the novel task of recommending reader comments to journalists that are worth reading or replying to, i. e., ranking comments in such a way that the top comments are most likely to require the journalists' reaction.

Bagging BERT Models for Robust Aggression Identification

1 code implementation LREC 2020 Julian Risch, Ralf Krestel

In this paper, we describe such an ensemble system and present our submission to the shared tasks on aggression identification 2020 (team name: Julian).

Aggression Identification text-classification +1

Offensive Language Detection Explained

1 code implementation LREC 2020 Julian Risch, Robin Ruff, Ralf Krestel

However, even with machine-learned models achieving better classification accuracy than human experts, there is still a reason why human moderators are preferred.

BIG-bench Machine Learning General Classification +1

Automatic Matching of Paintings and Descriptions in Art-Historic Archives using Multimodal Analysis

no code implementations LREC 2020 Christian Bartz, Nitisha Jain, Ralf Krestel

In this project description, we propose an approach to retrieve the associations between images and texts for artworks from art-historic archives.

Top Comment or Flop Comment? Predicting and Explaining User Engagement in Online News Discussions

1 code implementation26 Mar 2020 Julian Risch, Ralf Krestel

In this paper, we systematically analyze user engagement in the form of the upvotes and replies that a comment receives.

MODiR: Multi-Objective Dimensionality Reduction for Joint Data Visualisation

no code implementations ICLR 2020 Tim Repke, Ralf Krestel

Many large text collections exhibit graph structures, either inherent to the content itself or encoded in the metadata of the individual documents.

Dimensionality Reduction

My Approach = Your Apparatus? Entropy-Based Topic Modeling on Multiple Domain-Specific Text Collections

1 code implementation25 Nov 2019 Julian Risch, Ralf Krestel

Comparative text mining extends from genre analysis and political bias detection to the revelation of cultural and geographic differences, through to the search for prior art across patents and scientific papers.

Bias Detection Document Classification +1

Delete or not Delete? Semi-Automatic Comment Moderation for the Newsroom

no code implementations COLING 2018 Julian Risch, Ralf Krestel

Comment sections of online news providers have enabled millions to share and discuss their opinions on news topics.

Prediction for the Newsroom: Which Articles Will Get the Most Comments?

1 code implementation NAACL 2018 Carl Ambroselli, Julian Risch, Ralf Krestel, Andreas Loos

The overwhelming success of the Web and mobile technologies has enabled millions to share their opinions publicly at any time.


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