Search Results for author: Florian Matthes

Found 40 papers, 20 papers with code

Differential Privacy in Natural Language Processing The Story So Far

no code implementations NAACL (PrivateNLP) 2022 Oleksandra Klymenko, Stephen Meisenbacher, Florian Matthes

As the tide of Big Data continues to influence the landscape of Natural Language Processing (NLP), the utilization of modern NLP methods has grounded itself in this data, in order to tackle a variety of text-based tasks.

Clause Topic Classification in German and English Standard Form Contracts

no code implementations ECNLP (ACL) 2022 Daniel Braun, Florian Matthes

So-called standard form contracts, i. e. contracts that are drafted unilaterally by one party, like terms and conditions of online shops or terms of services of social networks, are cornerstones of our modern economy.

Classification Topic Classification

Structured Extraction of Terms and Conditions from German and English Online Shops

1 code implementation ECNLP (ACL) 2022 Tobias Schamel, Daniel Braun, Florian Matthes

While content extraction, in general, is a well-researched field and many open source libraries are available, our evaluation shows, that existing solutions cannot extract Terms and Conditions in sufficient quality, mainly because of their special structure.

TUM sebis at GermEval 2022: A Hybrid Model Leveraging Gaussian Processes and Fine-Tuned XLM-RoBERTa for German Text Complexity Analysis

2 code implementations GermEval 2022 Juraj Vladika, Stephen Meisenbacher, Florian Matthes

The task of quantifying the complexity of written language presents an interesting endeavor, particularly in the opportunity that it presents for aiding language learners.

Gaussian Processes

NLP for Consumer Protection: Battling Illegal Clauses in German Terms and Conditions in Online Shopping

no code implementations ACL (NLP4PosImpact) 2021 Daniel Braun, Florian Matthes

Government and non-government organisations (NGOs) for consumer protection battle such terms on behalf of consumers, who often hesitate to take on legal actions themselves.

Towards A Structured Overview of Use Cases for Natural Language Processing in the Legal Domain: A German Perspective

no code implementations29 Apr 2024 Juraj Vladika, Stephen Meisenbacher, Martina Preis, Alexandra Klymenko, Florian Matthes

In recent years, the field of Legal Tech has risen in prevalence, as the Natural Language Processing (NLP) and legal disciplines have combined forces to digitalize legal processes.

Improving Health Question Answering with Reliable and Time-Aware Evidence Retrieval

1 code implementation12 Apr 2024 Juraj Vladika, Florian Matthes

In today's digital world, seeking answers to health questions on the Internet is a common practice.

Question Answering Retrieval +1

A Comparative Analysis of Word-Level Metric Differential Privacy: Benchmarking The Privacy-Utility Trade-off

1 code implementation4 Apr 2024 Stephen Meisenbacher, Nihildev Nandakumar, Alexandra Klymenko, Florian Matthes

The application of Differential Privacy to Natural Language Processing techniques has emerged in relevance in recent years, with an increasing number of studies published in established NLP outlets.

Benchmarking

Enterprise Use Cases Combining Knowledge Graphs and Natural Language Processing

no code implementations1 Apr 2024 Phillip Schneider, Tim Schopf, Juraj Vladika, Florian Matthes

Knowledge management is a critical challenge for enterprises in today's digital world, as the volume and complexity of data being generated and collected continue to grow incessantly.

Knowledge Graphs Management

Comparing Knowledge Sources for Open-Domain Scientific Claim Verification

no code implementations5 Feb 2024 Juraj Vladika, Florian Matthes

We test the final verdict prediction of systems on four datasets of biomedical and health claims in different settings.

Claim Verification Evidence Selection +3

A Comparative Analysis of Conversational Large Language Models in Knowledge-Based Text Generation

1 code implementation2 Feb 2024 Phillip Schneider, Manuel Klettner, Elena Simperl, Florian Matthes

In this study, we conduct an empirical analysis of conversational large language models in generating natural language text from semantic triples.

Knowledge Graphs Text Generation

Evaluating Large Language Models in Semantic Parsing for Conversational Question Answering over Knowledge Graphs

1 code implementation3 Jan 2024 Phillip Schneider, Manuel Klettner, Kristiina Jokinen, Elena Simperl, Florian Matthes

Conversational question answering systems often rely on semantic parsing to enable interactive information retrieval, which involves the generation of structured database queries from a natural language input.

Conversational Question Answering Information Retrieval +3

Diversifying Knowledge Enhancement of Biomedical Language Models using Adapter Modules and Knowledge Graphs

no code implementations21 Dec 2023 Juraj Vladika, Alexander Fichtl, Florian Matthes

In this paper, we develop an approach that uses lightweight adapter modules to inject structured biomedical knowledge into pre-trained language models (PLMs).

Document Classification Knowledge Graphs +2

From Data to Dialogue: Leveraging the Structure of Knowledge Graphs for Conversational Exploratory Search

1 code implementation8 Oct 2023 Phillip Schneider, Nils Rehtanz, Kristiina Jokinen, Florian Matthes

Exploratory search is an open-ended information retrieval process that aims at discovering knowledge about a topic or domain rather than searching for a specific answer or piece of information.

Conversational Search Information Retrieval +3

SoK: Assessing the State of Applied Federated Machine Learning

no code implementations3 Aug 2023 Tobias Müller, Maximilian Stäbler, Hugo Gascón, Frank Köster, Florian Matthes

Machine Learning (ML) has shown significant potential in various applications; however, its adoption in privacy-critical domains has been limited due to concerns about data privacy.

Exploring the Landscape of Natural Language Processing Research

1 code implementation20 Jul 2023 Tim Schopf, Karim Arabi, Florian Matthes

As an efficient approach to understand, generate, and process natural language texts, research in natural language processing (NLP) has exhibited a rapid spread and wide adoption in recent years.

Efficient Domain Adaptation of Sentence Embeddings Using Adapters

no code implementations6 Jul 2023 Tim Schopf, Dennis N. Schneider, Florian Matthes

Instead, we only train a small number of additional parameters while keeping the weights of the underlying sentence embedding model fixed.

Domain Adaptation Semantic Similarity +5

Scientific Fact-Checking: A Survey of Resources and Approaches

no code implementations26 May 2023 Juraj Vladika, Florian Matthes

In particular, scientific fact-checking is the variation of the task concerned with verifying claims rooted in scientific knowledge.

Fact Checking Misinformation

Unlocking the Potential of Collaborative AI -- On the Socio-technical Challenges of Federated Machine Learning

no code implementations26 Apr 2023 Tobias Müller, Milena Zahn, Florian Matthes

This research investigates the challenges of prevailing collaborative business models and distinct aspects of Federated Machine Learning.

Sebis at SemEval-2023 Task 7: A Joint System for Natural Language Inference and Evidence Retrieval from Clinical Trial Reports

1 code implementation25 Apr 2023 Juraj Vladika, Florian Matthes

The first one is a pipeline system that models the two tasks separately, while the second one is a joint system that learns the two tasks simultaneously with a shared representation and a multi-task learning approach.

Multi-Task Learning Natural Language Inference +1

Voice-Based Conversational Agents and Knowledge Graphs for Improving News Search in Assisted Living

no code implementations24 Mar 2023 Phillip Schneider, Nils Rehtanz, Kristiina Jokinen, Florian Matthes

By leveraging graph databases to semantically structure news data and implementing an intuitive voice-based interface, our system can help care-dependent people to easily discover relevant news articles and give personalized recommendations.

Knowledge Graphs

Investigating Conversational Search Behavior For Domain Exploration

1 code implementation10 Jan 2023 Phillip Schneider, Anum Afzal, Juraj Vladika, Daniel Braun, Florian Matthes

Conversational search has evolved as a new information retrieval paradigm, marking a shift from traditional search systems towards interactive dialogues with intelligent search agents.

Conversational Search Information Retrieval +1

Evaluating Unsupervised Text Classification: Zero-shot and Similarity-based Approaches

2 code implementations29 Nov 2022 Tim Schopf, Daniel Braun, Florian Matthes

Text classification of unseen classes is a challenging Natural Language Processing task and is mainly attempted using two different types of approaches.

 Ranked #1 on Unsupervised Text Classification on AG News (F1-score metric)

text-classification Unsupervised Text Classification +1

Semantic Similarity-Based Clustering of Findings From Security Testing Tools

no code implementations20 Nov 2022 Phillip Schneider, Markus Voggenreiter, Abdullah Gulraiz, Florian Matthes

Over the last years, software development in domains with high security demands transitioned from traditional methodologies to uniting modern approaches from software development and operations (DevOps).

Clustering Semantic Similarity +1

Lbl2Vec: An Embedding-Based Approach for Unsupervised Document Retrieval on Predefined Topics

1 code implementation12 Oct 2022 Tim Schopf, Daniel Braun, Florian Matthes

When successively retrieving documents on different predefined topics from publicly available and commonly used datasets, we achieved an average area under the receiver operating characteristic curve value of 0. 95 on one dataset and 0. 92 on another.

Document Classification Retrieval +2

PatternRank: Leveraging Pretrained Language Models and Part of Speech for Unsupervised Keyphrase Extraction

1 code implementation11 Oct 2022 Tim Schopf, Simon Klimek, Florian Matthes

Keyphrase extraction is the process of automatically selecting a small set of most relevant phrases from a given text.

Keyphrase Extraction

A Decade of Knowledge Graphs in Natural Language Processing: A Survey

1 code implementation30 Sep 2022 Phillip Schneider, Tim Schopf, Juraj Vladika, Mikhail Galkin, Elena Simperl, Florian Matthes

In pace with developments in the research field of artificial intelligence, knowledge graphs (KGs) have attracted a surge of interest from both academia and industry.

Knowledge Graphs

Differential Privacy in Natural Language Processing: The Story So Far

no code implementations17 Aug 2022 Oleksandra Klymenko, Stephen Meisenbacher, Florian Matthes

As such, the question of privacy in NLP has gained fervor in recent years, coinciding with the development of new Privacy-Enhancing Technologies (PETs).

SimpleNLG-DE: Adapting SimpleNLG 4 to German

1 code implementation WS 2019 Daniel Braun, Kira Klimt, Daniela Schneider, Florian Matthes

SimpleNLG is a popular open source surface realiser for the English language.

Stop Illegal Comments: A Multi-Task Deep Learning Approach

no code implementations15 Oct 2018 Ahmed Elnaggar, Bernhard Waltl, Ingo Glaser, Jörg Landthaler, Elena Scepankova, Florian Matthes

Deep learning methods are often difficult to apply in the legal domain due to the large amount of labeled data required by deep learning methods.

General Classification Transfer Learning +1

Named-Entity Linking Using Deep Learning For Legal Documents: A Transfer Learning Approach

no code implementations15 Oct 2018 Ahmed Elnaggar, Robin Otto, Florian Matthes

However, this paper focuses especially on the aspect of applying transfer learning approach using networks trained for NEL to legal documents.

Entity Linking Transfer Learning

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