no code implementations • 20 Jan 2025 • Sahar Tahmasebi, Eric Müller-Budack, Ralph Ewerth
The identification of inconsistent cross-modal information, in particular entities such as persons, locations, and events, is critical to detect disinformation.
no code implementations • 9 Jan 2025 • Wolfgang Gritz, Anett Hoppe, Ralph Ewerth
The reported results shed light on the impact of visual complexity on learning-oriented searches, informing the design of more effective IR systems for educational contexts.
no code implementations • 8 Aug 2024 • Evelyn Navarrete, Ralph Ewerth, Anett Hoppe
In this paper, we address this gap by evaluating four state-of-the-art saliency detection approaches for educational videos.
no code implementations • 19 Jul 2024 • Sahar Tahmasebi, Eric Müller-Budack, Ralph Ewerth
Few approaches consider evidence retrieval as part of the misinformation detection but rely on fine-tuning models.
1 code implementation • 10 Jan 2024 • Wolfgang Gritz, Anett Hoppe, Ralph Ewerth
We use publicly available study data from a web-based learning task to examine the relationship between our feature set and the participants' test scores.
1 code implementation • 19 Jul 2023 • Junaid Ahmed Ghauri, Eric Müller-Budack, Ralph Ewerth
In this paper, we adopt state-of-the-art deep learning methods for the classification of visualization types and perspectives in patent images.
1 code implementation • 29 May 2023 • Sahar Tahmasebi, Sherzod Hakimov, Ralph Ewerth, Eric Müller-Budack
To reduce the bias and improve model generalization, we suggest training data augmentation to conduct more meaningful experiments for fake news detection on social media.
1 code implementation • 13 Dec 2022 • Christian Otto, Markos Stamatakis, Anett Hoppe, Ralph Ewerth
Informal learning on the Web using search engines as well as more structured learning on MOOC platforms have become very popular in recent years.
1 code implementation • 15 Nov 2022 • Golsa Tahmasebzadeh, Eric Müller-Budack, Sherzod Hakimov, Ralph Ewerth
In this paper, a novel dataset called Multimodal Focus Location of News (MM-Locate-News) is introduced.
7 code implementations • 5 Oct 2022 • Silvio Giancola, Anthony Cioppa, Adrien Deliège, Floriane Magera, Vladimir Somers, Le Kang, Xin Zhou, Olivier Barnich, Christophe De Vleeschouwer, Alexandre Alahi, Bernard Ghanem, Marc Van Droogenbroeck, Abdulrahman Darwish, Adrien Maglo, Albert Clapés, Andreas Luyts, Andrei Boiarov, Artur Xarles, Astrid Orcesi, Avijit Shah, Baoyu Fan, Bharath Comandur, Chen Chen, Chen Zhang, Chen Zhao, Chengzhi Lin, Cheuk-Yiu Chan, Chun Chuen Hui, Dengjie Li, Fan Yang, Fan Liang, Fang Da, Feng Yan, Fufu Yu, Guanshuo Wang, H. Anthony Chan, He Zhu, Hongwei Kan, Jiaming Chu, Jianming Hu, Jianyang Gu, Jin Chen, João V. B. Soares, Jonas Theiner, Jorge De Corte, José Henrique Brito, Jun Zhang, Junjie Li, Junwei Liang, Leqi Shen, Lin Ma, Lingchi Chen, Miguel Santos Marques, Mike Azatov, Nikita Kasatkin, Ning Wang, Qiong Jia, Quoc Cuong Pham, Ralph Ewerth, Ran Song, RenGang Li, Rikke Gade, Ruben Debien, Runze Zhang, Sangrok Lee, Sergio Escalera, Shan Jiang, Shigeyuki Odashima, Shimin Chen, Shoichi Masui, Shouhong Ding, Sin-wai Chan, Siyu Chen, Tallal El-Shabrawy, Tao He, Thomas B. Moeslund, Wan-Chi Siu, Wei zhang, Wei Li, Xiangwei Wang, Xiao Tan, Xiaochuan Li, Xiaolin Wei, Xiaoqing Ye, Xing Liu, Xinying Wang, Yandong Guo, YaQian Zhao, Yi Yu, YingYing Li, Yue He, Yujie Zhong, Zhenhua Guo, Zhiheng Li
The SoccerNet 2022 challenges were the second annual video understanding challenges organized by the SoccerNet team.
1 code implementation • 24 Jul 2022 • Jonas Theiner, Ralph Ewerth
Sports field registration in broadcast videos is typically interpreted as the task of homography estimation, which provides a mapping between a planar field and the corresponding visible area of the image.
1 code implementation • 6 Jul 2022 • Matthias Springstein, Stefanie Schneider, Christian Althaus, Ralph Ewerth
In contrast to previous work that attempts to bridge the domain gap with pre-trained models or through style transfer, we suggest semi-supervised learning for both object and keypoint detection.
Ranked #1 on
Semi-Supervised Human Pose Estimation
on PoPArt
1 code implementation • Findings (NAACL) 2022 • Gullal S. Cheema, Sherzod Hakimov, Abdul Sittar, Eric Müller-Budack, Christian Otto, Ralph Ewerth
In recent years, the problem of misinformation on the web has become widespread across languages, countries, and various social media platforms.
1 code implementation • SemEval (NAACL) 2022 • Sherzod Hakimov, Gullal S. Cheema, Ralph Ewerth
The detection of offensive, hateful content on social media is a challenging problem that affects many online users on a daily basis.
no code implementations • 7 Jan 2022 • Christian Otto, Markus Rokicki, Georg Pardi, Wolfgang Gritz, Daniel Hienert, Ran Yu, Johannes von Hoyer, Anett Hoppe, Stefan Dietze, Peter Holtz, Yvonne Kammerer, Ralph Ewerth
The emerging research field Search as Learning investigates how the Web facilitates learning through modern information retrieval systems.
1 code implementation • 9 Dec 2021 • Sherzod Hakimov, Ralph Ewerth
The detection of offensive, hateful and profane language has become a critical challenge since many users in social networks are exposed to cyberbullying activities on a daily basis.
no code implementations • 21 Oct 2021 • Jonas Theiner, Wolfgang Gritz, Eric Müller-Budack, Robert Rein, Daniel Memmert, Ralph Ewerth
A comprehensive experimental evaluation is presented for the individual modules as well as the entire pipeline to identify the influence of errors to subsequent modules and the overall result.
1 code implementation • 25 Aug 2021 • Henrik Biermann, Jonas Theiner, Manuel Bassek, Dominik Raabe, Daniel Memmert, Ralph Ewerth
To address these issues, we present (1) a universal taxonomy that covers a wide range of low and high-level events for invasion games and is exemplarily refined to soccer and handball, and (2) release two multi-modal datasets comprising video and positional data with gold-standard annotations to foster research in fine-grained and ball-centered event spotting.
1 code implementation • 3 Aug 2021 • Matthias Springstein, Stefanie Schneider, Javad Rahnama, Eyke Hüllermeier, Hubertus Kohle, Ralph Ewerth
In this paper, we introduce iART: an open Web platform for art-historical research that facilitates the process of comparative vision.
no code implementations • 29 Jun 2021 • Anett Hoppe, David Morris, Ralph Ewerth
Illustrations are widely used in education, and sometimes, alternatives are not available for visually impaired students.
1 code implementation • 17 Jun 2021 • Matthias Springstein, Eric Müller-Budack, Ralph Ewerth
The recognition of handwritten mathematical expressions in images and video frames is a difficult and unsolved problem yet.
1 code implementation • 16 Jun 2021 • Gullal S. Cheema, Sherzod Hakimov, Eric Müller-Budack, Ralph Ewerth
Opinion and sentiment analysis is a vital task to characterize subjective information in social media posts.
no code implementations • 11 Jun 2021 • Christian Otto, Ran Yu, Georg Pardi, Johannes von Hoyer, Markus Rokicki, Anett Hoppe, Peter Holtz, Yvonne Kammerer, Stefan Dietze, Ralph Ewerth
Related work in this field, also called search as learning, has focused on behavioral or text resource features to predict learning outcome and knowledge gain.
1 code implementation • 10 Jun 2021 • Arthur Brack, Anett Hoppe, Ralph Ewerth
Citation recommendation for research papers is a valuable task that can help researchers improve the quality of their work by suggesting relevant related work.
1 code implementation • 26 May 2021 • Hussain Kanafani, Junaid Ahmed Ghauri, Sherzod Hakimov, Ralph Ewerth
Our evaluation shows that we obtain state-of-the-art results on both datasets, while also highlighting the shortcomings of previous work with regard to the evaluation methodology.
1 code implementation • 30 Apr 2021 • Jonas Theiner, Eric Mueller-Budack, Ralph Ewerth
State-of-the-art methods treat the task as a classification problem, where the choice of the classes, that is the partitioning of the world map, is crucial for the performance.
1 code implementation • 30 Apr 2021 • Golsa Tahmasebzadeh, Endri Kacupaj, Eric Müller-Budack, Sherzod Hakimov, Jens Lehmann, Ralph Ewerth
The first module is a state-of-the-art model for geolocation estimation of images.
1 code implementation • 28 Apr 2021 • Matthias Springstein, Eric Müller-Budack, Ralph Ewerth
The World Wide Web and social media platforms have become popular sources for news and information.
3 code implementations • 23 Apr 2021 • Junaid Ahmed Ghauri, Sherzod Hakimov, Ralph Ewerth
The proposed architecture utilizes an attention mechanism before fusing motion features and features representing the (static) visual content, i. e., derived from an image classification model.
Ranked #1 on
Supervised Video Summarization
on TvSum
1 code implementation • 17 Mar 2021 • Gullal S. Cheema, Sherzod Hakimov, Eric Müller-Budack, Ralph Ewerth
Fake news is a severe problem in social media.
1 code implementation • 11 Feb 2021 • Arthur Brack, Anett Hoppe, Pascal Buschermöhle, Ralph Ewerth
Our approach outperforms the state of the art on full paper datasets significantly while being on par for datasets consisting of abstracts.
no code implementations • 11 Feb 2021 • Arthur Brack, Anett Hoppe, Markus Stocker, Sören Auer, Ralph Ewerth
Current science communication has a number of drawbacks and bottlenecks which have been subject of discussion lately: Among others, the rising number of published articles makes it nearly impossible to get a full overview of the state of the art in a certain field, or reproducibility is hampered by fixed-length, document-based publications which normally cannot cover all details of a research work.
1 code implementation • 4 Jan 2021 • Arthur Brack, Daniel Uwe Müller, Anett Hoppe, Ralph Ewerth
We present the following contributions: (1) We annotate a corpus for coreference resolution that comprises 10 different scientific disciplines from Science, Technology, and Medicine (STM); (2) We propose transfer learning for automatic coreference resolution in research papers; (3) We analyse the impact of coreference resolution on knowledge graph (KG) population; (4) We release a research KG that is automatically populated from 55, 485 papers in 10 STM domains.
Ranked #1 on
Coreference Resolution
on STM-coref
(using extra training data)
1 code implementation • 9 Nov 2020 • Eric Müller-Budack, Matthias Springstein, Sherzod Hakimov, Kevin Mrutzek, Ralph Ewerth
Event classification can add valuable information for semantic search and the increasingly important topic of fact validation in news.
1 code implementation • 26 Oct 2020 • Junaid Ahmed Ghauri, Sherzod Hakimov, Ralph Ewerth
Our experiments investigate the impact of visual and temporal information, as well as the combination of multimodal features on importance prediction.
1 code implementation • CVPR 2021 • Julian Lienen, Eyke Hüllermeier, Ralph Ewerth, Nils Nommensen
In many real-world applications, the relative depth of objects in an image is crucial for scene understanding.
1 code implementation • 14 Aug 2020 • Jason Armitage, Endri Kacupaj, Golsa Tahmasebzadeh, Swati, Maria Maleshkova, Ralph Ewerth, Jens Lehmann
We demonstrate the value of the resource in developing novel applications in the digital humanities with a motivating use case and specify a benchmark set of tasks to retrieve modalities and locate entities in the dataset.
1 code implementation • 21 Jul 2020 • Gullal S. Cheema, Sherzod Hakimov, Ralph Ewerth
In this digital age of news consumption, a news reader has the ability to react, express and share opinions with others in a highly interactive and fast manner.
no code implementations • 13 Jul 2020 • Golsa Tahmasebzadeh, Sherzod Hakimov, Eric Müller-Budack, Ralph Ewerth
Content-based information retrieval is based on the information contained in documents rather than using metadata such as keywords.
no code implementations • 20 May 2020 • Arthur Brack, Anett Hoppe, Markus Stocker, Sören Auer, Ralph Ewerth
Current science communication has a number of drawbacks and bottlenecks which have been subject of discussion lately: Among others, the rising number of published articles makes it nearly impossible to get an overview of the state of the art in a certain field, or reproducibility is hampered by fixed-length, document-based publications which normally cannot cover all details of a research work.
no code implementations • 23 Mar 2020 • Eric Müller-Budack, Jonas Theiner, Sebastian Diering, Maximilian Idahl, Ralph Ewerth
In this paper, we introduce a novel task of cross-modal consistency verification in real-world news and present a multimodal approach to quantify the entity coherence between image and text.
no code implementations • LREC 2020 • Jennifer D'Souza, Anett Hoppe, Arthur Brack, Mohamad Yaser Jaradeh, Sören Auer, Ralph Ewerth
We introduce the STEM (Science, Technology, Engineering, and Medicine) Dataset for Scientific Entity Extraction, Classification, and Resolution, version 1. 0 (STEM-ECR v1. 0).
no code implementations • 19 Jan 2020 • David Morris, Eric Müller-Budack, Ralph Ewerth
We have reserved all the actual educational images as a test dataset in order to ensure that the approaches using this dataset generalize well to new educational images, and potentially other domains.
1 code implementation • Accepted for publishing in 42nd European Conference on IR Research, ECIR 2020 2020 • Arthur Brack, Jennifer D'Souza, Anett Hoppe, Sören Auer, Ralph Ewerth
We examine the novel task of domain-independent scientific concept extraction from abstracts of scholarly articles and present two contributions.
Ranked #1 on
Scientific Concept Extraction
on STM-corpus
no code implementations • 25 Nov 2019 • Hang Zhou, Christian Otto, Ralph Ewerth
Effective learning with audiovisual content depends on many factors.
2 code implementations • 2 Sep 2019 • Eric Müller-Budack, Jonas Theiner, Robert Rein, Ralph Ewerth
For this purpose, a visual summary is utilized that summarizes the team formation in a match segment.
no code implementations • 24 Jul 2019 • Kader Pustu-Iren, Markus Mühling, Nikolaus Korfhage, Joanna Bars, Sabrina Bernhöft, Angelika Hörth, Bernd Freisleben, Ralph Ewerth
Video indexing approaches such as visual concept classification and person recognition are essential to enable fine-grained semantic search in large-scale video archives such as the historical video collection of former German Democratic Republic (GDR) maintained by the German Broadcasting Archive (DRA).
no code implementations • 20 Jun 2019 • Christian Otto, Matthias Springstein, Avishek Anand, Ralph Ewerth
Two modalities are often used to convey information in a complementary and beneficial manner, e. g., in online news, videos, educational resources, or scientific publications.
no code implementations • 23 Jan 2019 • Christian Otto, Sebastian Holzki, Ralph Ewerth
In this paper, we present an approach to predict the (cross-modal) relative abstractness level of a given image-text pair, that is whether the image is an abstraction of the text or vice versa.
1 code implementation • ECCV 2018 • Eric Muller-Budack, Kader Pustu-Iren, Ralph Ewerth
While the successful estimation of a photo's geolocation enables a number of interesting applications, it is also a very challenging task.
Ranked #1 on
Photo geolocation estimation
on Im2GPS
(Street level (1 km) metric)
no code implementations • 21 Jun 2018 • Eric Müller-Budack, Kader Pustu-Iren, Sebastian Diering, Ralph Ewerth
In this paper, we introduce a system for person recognition in image content of web news stored in the Internet Archive.
no code implementations • 19 Jun 2018 • Justyna Medrek, Christian Otto, Ralph Ewerth
The amount of available videos in the Web has significantly increased not only for entertainment etc., but also to convey educational or scientific information in an effective way.
Optical Character Recognition
Optical Character Recognition (OCR)
+2