Search Results for author: Lukas Galke

Found 15 papers, 11 papers with code

Emergent communication and learning pressures in language models: a language evolution perspective

no code implementations21 Mar 2024 Lukas Galke, Limor Raviv

Based on a short literature review, we identify key pressures that have recovered initially absent human patterns in emergent communication models: communicative success, efficiency, learnability, and other psycho-/sociolinguistic factors.

Language Acquisition Multi-agent Reinforcement Learning

Open-World Lifelong Graph Learning

1 code implementation19 Oct 2023 Marcel Hoffmann, Lukas Galke, Ansgar Scherp

We study the problem of lifelong graph learning in an open-world scenario, where a model needs to deal with new tasks and potentially unknown classes.

Graph Learning Out of Distribution (OOD) Detection

Emergent Communication for Understanding Human Language Evolution: What's Missing?

no code implementations22 Apr 2022 Lukas Galke, Yoav Ram, Limor Raviv

Emergent communication protocols among humans and artificial neural network agents do not yet share the same properties and show some critical mismatches in results.

Are We Really Making Much Progress in Text Classification? A Comparative Review

no code implementations8 Apr 2022 Lukas Galke, Andor Diera, Bao Xin Lin, Bhakti Khera, Tim Meuser, Tushar Singhal, Fabian Karl, Ansgar Scherp

This study reviews and compares methods for single-label and multi-label text classification, categorized into bag-of-words, sequence-based, graph-based, and hierarchical methods.

Multi-Label Classification Multi Label Text Classification +2

Lifelong Learning on Evolving Graphs Under the Constraints of Imbalanced Classes and New Classes

1 code implementation20 Dec 2021 Lukas Galke, Iacopo Vagliano, Benedikt Franke, Tobias Zielke, Marcel Hoffmann, Ansgar Scherp

The combination of these two challenges is particularly relevant since newly emerging classes typically resemble only a tiny fraction of the data, adding to the already skewed class distribution.

Graph Attention Graph Learning +2

General Cross-Architecture Distillation of Pretrained Language Models into Matrix Embeddings

1 code implementation17 Sep 2021 Lukas Galke, Isabelle Cuber, Christoph Meyer, Henrik Ferdinand Nölscher, Angelina Sonderecker, Ansgar Scherp

We match or exceed the scores of ELMo for all tasks of the GLUE benchmark except for the sentiment analysis task SST-2 and the linguistic acceptability task CoLA.

CoLA Linguistic Acceptability +6

Bag-of-Words vs. Graph vs. Sequence in Text Classification: Questioning the Necessity of Text-Graphs and the Surprising Strength of a Wide MLP

2 code implementations ACL 2022 Lukas Galke, Ansgar Scherp

We show that a wide multi-layer perceptron (MLP) using a Bag-of-Words (BoW) outperforms the recent graph-based models TextGCN and HeteGCN in an inductive text classification setting and is comparable with HyperGAT.

text-classification Text Classification

Recommendations for Item Set Completion: On the Semantics of Item Co-Occurrence With Data Sparsity, Input Size, and Input Modalities

1 code implementation10 May 2021 Iacopo Vagliano, Lukas Galke, Ansgar Scherp

In conclusion, it is crucial to consider the semantics of the item co-occurrence for the choice of an appropriate recommendation model and carefully decide which metadata to exploit.

Attribute Citation Recommendation

Lifelong Learning of Graph Neural Networks for Open-World Node Classification

1 code implementation25 Jun 2020 Lukas Galke, Benedikt Franke, Tobias Zielke, Ansgar Scherp

Graph neural networks (GNNs) have emerged as the standard method for numerous tasks on graph-structured data such as node classification.

Node Classification

Multi-Modal Adversarial Autoencoders for Recommendations of Citations and Subject Labels

1 code implementation22 Jul 2019 Lukas Galke, Florian Mai, Iacopo Vagliano, Ansgar Scherp

We present multi-modal adversarial autoencoders for recommendation and evaluate them on two different tasks: citation recommendation and subject label recommendation.

Citation Recommendation

Can Graph Neural Networks Go "Online"? An Analysis of Pretraining and Inference

1 code implementation15 May 2019 Lukas Galke, Iacopo Vagliano, Ansgar Scherp

In this setup, we compare adapting pretrained graph neural networks against retraining from scratch.

CBOW Is Not All You Need: Combining CBOW with the Compositional Matrix Space Model

1 code implementation ICLR 2019 Florian Mai, Lukas Galke, Ansgar Scherp

In order to address this shortcoming, we propose a learning algorithm for the Continuous Matrix Space Model, which we call Continual Multiplication of Words (CMOW).

Word Embeddings

Using Titles vs. Full-text as Source for Automated Semantic Document Annotation

1 code implementation15 May 2017 Lukas Galke, Florian Mai, Alan Schelten, Dennis Brunsch, Ansgar Scherp

For the first time, we offer a systematic comparison of classification approaches to investigate how far semantic annotations can be conducted using just the metadata of the documents such as titles published as labels on the Linked Open Data cloud.

Document Classification General Classification +3

Cannot find the paper you are looking for? You can Submit a new open access paper.