Sahar Vahdati

According to our database, Sahar Vahdati authored at least 75 papers between 2014 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

A Self-Representation Learning Method for Unsupervised Feature Selection using Feature Space Basis.

Prayag Tiwari, Farid Saberi Movahed, Saeed Karami, Farshad Saberi-Movahed, Jens Lehmann, Sahar Vahdati

Trans. Mach. Learn. Res., 2024

Beyond Boundaries: A Human-like Approach for Question Answering over Structured and Unstructured Information Sources.

Jens Lehmann, Dhananjay Bhandiwad, Preetam Gattogi, Sahar Vahdati

Trans. Assoc. Comput. Linguistics, 2024

Deep Nonnegative Matrix Factorization with Joint Global and Local Structure Preservation.

Farid Saberi-Movahed, Bitasta Biswas, Prayag Tiwari, Jens Lehmann, Sahar Vahdati

Expert Syst. Appl., 2024

Why do you cite? An investigation on citation intents and decision-making classification processes.

Lorenzo Paolini, Sahar Vahdati, Angelo Di Iorio, Robert Wardenga, Ivan Heibi, Silvio Peroni

CoRR, 2024

QuickCharNet: An Efficient URL Classification Framework for Enhanced Search Engine Optimization.

Fardin Rastakhiz, Mahdi Eftekhari, Sahar Vahdati

IEEE Access, 2024

Large Language Models for Scientific Question Answering: An Extensive Analysis of the SciQA Benchmark.

Jens Lehmann, Antonello Meloni, Enrico Motta, Francesco Osborne, Diego Reforgiato Recupero, Angelo Antonio Salatino, Sahar Vahdati

Proceedings of the Semantic Web - 21st International Conference, 2024

X-Vent: ICU Ventilation with Explainable Model-Based Reinforcement Learning.

Farhad Safaei, Milos Nenadovic, Jakob Wittenstein, Jens Lehmann, Sahar Vahdati

Proceedings of the ECAI 2024 - 27th European Conference on Artificial Intelligence, 19-24 October 2024, Santiago de Compostela, Spain, 2024

Knowledge GeoGebra: Leveraging Geometry of Relation Embeddings in Knowledge Graph Completion.

Kossi Amouzouvi, Bowen Song, Sahar Vahdati, Jens Lehmann

Proceedings of the 2024 Joint International Conference on Computational Linguistics, 2024

2023

Unsupervised feature selection based on variance-covariance subspace distance.

Saeed Karami, Farid Saberi-Movahed, Prayag Tiwari, Pekka Marttinen, Sahar Vahdati

Neural Networks, September, 2023

Utilizing Transformers on OCT Imagery and Metadata for Treatment Response Prediction in Macular Edema Patients.

Sahar Vahdati, Deepankan Bharathi Nagaraj, Maximilian Bryan, Sobhan Moazemi, Sabine Gründer-Fahrer, Michael Martin

Proceedings of the Image Analysis - 22nd Scandinavian Conference, 2023

Distinct Geometrical Representations for Temporal and Relational Structures in Knowledge Graphs.

Bowen Song, Chengjin Xu, Kossi Amouzouvi, Maocai Wang, Jens Lehmann, Sahar Vahdati

Proceedings of the Machine Learning and Knowledge Discovery in Databases: Research Track, 2023

Language Models as Controlled Natural Language Semantic Parsers for Knowledge Graph Question Answering.

Jens Lehmann, Sébastien Ferré, Sahar Vahdati

Proceedings of the ECAI 2023 - 26th European Conference on Artificial Intelligence, September 30 - October 4, 2023, Kraków, Poland, 2023

Retention is All You Need.

Karishma Mohiuddin, Mirza Ariful Alam, Mirza Mohtashim Alam, Pascal Welke, Michael Martin, Jens Lehmann, Sahar Vahdati

Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, 2023

2022

Data science with Vadalog: Knowledge Graphs with machine learning and reasoning in practice.

Luigi Bellomarini, Ruslan R. Fayzrakhmanov, Georg Gottlob, Andrey Kravchenko, Eleonora Laurenza, Yavor Nenov, Stéphane Reissfelder, Emanuel Sallinger, Evgeny Sherkhonov, Sahar Vahdati, Lianlong Wu

Future Gener. Comput. Syst., 2022

ProjB: An Improved Bilinear Biased ProjE model for Knowledge Graph Completion.

Mojtaba Moattari, Sahar Vahdati, Farhana H. Zulkernine

CoRR, 2022

Language Model-driven Negative Sampling.

Mirza Mohtashim Alam, Md. Rashad Al Hasan Rony, Semab Ali, Jens Lehmann, Sahar Vahdati

CoRR, 2022

Language Model Guided Knowledge Graph Embeddings.

Mirza Mohtashim Alam, Md. Rashad Al Hasan Rony, Mojtaba Nayyeri, Karishma Mohiuddin, M. S. T. Mahfuja Akter, Sahar Vahdati, Jens Lehmann

IEEE Access, 2022

μ-Bench: Real-world Micro Benchmarking for SPARQL Query Processing over Knowledge Graphs.

Muhammad Saleem, Adnan Akhter, Sahar Vahdati, Axel-Cyrille Ngonga Ngomo

Proceedings of the 11th International Joint Conference on Knowledge Graphs, 2022

Rule Learning over Knowledge Graphs with Genetic Logic Programming.

Lianlong Wu, Emanuel Sallinger, Evgeny Sherkhonov, Sahar Vahdati, Georg Gottlob

Proceedings of the 38th IEEE International Conference on Data Engineering, 2022

Dihedron Algebraic Embeddings for Spatio-Temporal Knowledge Graph Completion.

Mojtaba Nayyeri, Sahar Vahdati, Md Tansen Khan, Mirza Mohtashim Alam, Lisa Wenige, Andreas Behrend, Jens Lehmann

Proceedings of the Semantic Web - 19th International Conference, 2022

Towards Hybrid Logic-based and Embedding-based Reasoning on Financial Knowledge Graphs.

Adriano Vlad, Sahar Vahdati, Mojtaba Nayyeri, Luigi Bellomarini, Emanuel Sallinger

Proceedings of the Workshops of the EDBT/ICDT 2022 Joint Conference, 2022

2021

A comprehensive quality assessment framework for scientific events.

Sahar Vahdati, Said Fathalla, Christoph Lange, Andreas Behrend, Aysegul Say, Zeynep Say, Sören Auer

Scientometrics, 2021

Analysing the evolution of computer science events leveraging a scholarly knowledge graph: a scientometrics study of top-ranked events in the past decade.

Arthur Lackner, Said Fathalla, Mojtaba Nayyeri, Andreas Behrend, Rainer Manthey, Sören Auer, Jens Lehmann, Sahar Vahdati

Scientometrics, 2021

Trans4E: Link prediction on scholarly knowledge graphs.

Mojtaba Nayyeri, Gökce Müge Cil, Sahar Vahdati, Francesco Osborne, Mahfuzur Rahman, Simone Angioni, Angelo A. Salatino, Diego Reforgiato Recupero, Nadezhda Vassilyeva, Enrico Motta, Jens Lehmann

Neurocomputing, 2021

Multiple Run Ensemble Learning withLow-Dimensional Knowledge Graph Embeddings.

Chengjin Xu, Mojtaba Nayyeri, Sahar Vahdati, Jens Lehmann

CoRR, 2021

Link Prediction of Weighted Triples for Knowledge Graph Completion Within the Scholarly Domain.

Mojtaba Nayyeri, Gökce Müge Cil, Sahar Vahdati, Francesco Osborne, Andrey Kravchenko, Simone Angioni, Angelo A. Salatino, Diego Reforgiato Recupero, Enrico Motta, Jens Lehmann

IEEE Access, 2021

Sleeping Beauties of Coronavirus Research.

Mohsen Fazeli-Varzaneh, Ali Ghorbi, Marcel Ausloos, Emanuel Sallinger, Sahar Vahdati

IEEE Access, 2021

Loss-Aware Pattern Inference: A Correction on the Wrongly Claimed Limitations of Embedding Models.

Mojtaba Nayyeri, Chengjin Xu, Yadollah Yaghoobzadeh, Sahar Vahdati, Mirza Mohtashim Alam, Hamed Shariat Yazdi, Jens Lehmann

Proceedings of the Advances in Knowledge Discovery and Data Mining, 2021

A Simulated Annealing Meta-heuristic for Concept Learning in Description Logics.

Patrick Westphal, Sahar Vahdati, Jens Lehmann

Proceedings of the Inductive Logic Programming - 30th International Conference, 2021

Knowledge Graph Representation Learning using Ordinary Differential Equations.

Mojtaba Nayyeri, Chengjin Xu, Franca Hoffmann, Mirza Mohtashim Alam, Jens Lehmann, Sahar Vahdati

Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing, 2021

Pattern-Aware and Noise-Resilient Embedding Models.

Mojtaba Nayyeri, Sahar Vahdati, Emanuel Sallinger, Mirza Mohtashim Alam, Hamed Shariat Yazdi, Jens Lehmann

Proceedings of the Advances in Information Retrieval, 2021

5* Knowledge Graph Embeddings with Projective Transformations.

Mojtaba Nayyeri, Sahar Vahdati, Can Aykul, Jens Lehmann

Proceedings of the Thirty-Fifth AAAI Conference on Artificial Intelligence, 2021

2020

Reasoning in Knowledge Graphs: An Embeddings Spotlight.

Luigi Bellomarini, Emanuel Sallinger, Sahar Vahdati

Proceedings of the Knowledge Graphs and Big Data Processing, 2020

Knowledge Graphs: The Layered Perspective.

Luigi Bellomarini, Emanuel Sallinger, Sahar Vahdati

Proceedings of the Knowledge Graphs and Big Data Processing, 2020

Scholarly event characteristics in four fields of science: a metrics-based analysis.

Said Fathalla, Sahar Vahdati, Christoph Lange, Sören Auer

Scientometrics, 2020

Motif Learning in Knowledge Graphs Using Trajectories Of Differential Equations.

Mojtaba Nayyeri, Chengjin Xu, Jens Lehmann, Sahar Vahdati

CoRR, 2020

3D Learning and Reasoning in Link Prediction Over Knowledge Graphs.

Mojtaba Nayyeri, Mirza Mohtashim Alam, Jens Lehmann, Sahar Vahdati

IEEE Access, 2020

Fantastic Knowledge Graph Embeddings and How to Find the Right Space for Them.

Mojtaba Nayyeri, Chengjin Xu, Sahar Vahdati, Nadezhda Vassilyeva, Emanuel Sallinger, Hamed Shariat Yazdi, Jens Lehmann

Proceedings of the Semantic Web - ISWC 2020, 2020

Let the Margin SlidE^± for Knowledge Graph Embeddings via a Correntropy Objective Function.

Mojtaba Nayyeri, Xiaotian Zhou, Sahar Vahdati, Reza Izanloo, Hamed Shariat Yazdi, Jens Lehmann

Proceedings of the 2020 International Joint Conference on Neural Networks, 2020

Semantic Representation of Physics Research Data.

Aysegul Say, Said Fathalla, Sahar Vahdati, Jens Lehmann, Sören Auer

Proceedings of the 12th International Joint Conference on Knowledge Discovery, 2020

Embedding-Based Recommendations on Scholarly Knowledge Graphs.

Mojtaba Nayyeri, Sahar Vahdati, Xiaotian Zhou, Hamed Shariat Yazdi, Jens Lehmann

Proceedings of the Semantic Web - 17th International Conference, 2020

Ontology Design for Pharmaceutical Research Outcomes.

Zeynep Say, Said Fathalla, Sahar Vahdati, Jens Lehmann, Sören Auer

Proceedings of the Digital Libraries for Open Knowledge, 2020

Multiple Run Ensemble Learning with Low Dimensional Knowledge Graph Embeddings.

Chengjin Xu, Mojtaba Nayyeri, Sahar Vahdati, Jens Lehmann

Proceedings of the International Workshop on Knowledge Representation and Representation Learning co-located with the 24th European Conference on Artificial Intelligence (ECAI 2020), 2020

An Evolutionary Algorithm for Rule Learning over Knowledge Graphs.

Lianlong Wu, Emanuel Sallinger, Evgeny Sherkhonov, Sahar Vahdati, Georg Gottlob

Proceedings of the International Workshop on Knowledge Representation and Representation Learning co-located with the 24th European Conference on Artificial Intelligence (ECAI 2020), 2020

2019

Collaborative Integration, Publishing and Analysis of Distributed Scholarly Metadata

Sahar Vahdati

PhD thesis, 2019

Editorial: Special Issue on Scholarly Data Analysis (Semantics, Analytics, Visualisation).

Alejandra N. González-Beltrán, Francesco Osborne, Silvio Peroni, Sahar Vahdati

Data Sci., 2019

Adaptive Margin Ranking Loss for Knowledge Graph Embeddings via a Correntropy Objective Function.

Mojtaba Nayyeri, Xiaotian Zhou, Sahar Vahdati, Hamed Shariat Yazdi, Jens Lehmann

CoRR, 2019

Soft Marginal TransE for Scholarly Knowledge Graph Completion.

Mojtaba Nayyeri, Sahar Vahdati, Jens Lehmann, Hamed Shariat Yazdi

CoRR, 2019

SEO: A Scientific Events Data Model.

Said Fathalla, Sahar Vahdati, Christoph Lange, Sören Auer

Proceedings of the Semantic Web - ISWC 2019, 2019

The scientific events ontology of the OpenResearch.org curation platform.

Said Fathalla, Sahar Vahdati, Sören Auer, Christoph Lange

Proceedings of the 34th ACM/SIGAPP Symposium on Applied Computing, 2019

Improving Access to Science for Social Good.

Mehdi Ali, Sahar Vahdati, Shruti Singh, Sourish Dasgupta, Jens Lehmann

Proceedings of the Machine Learning and Knowledge Discovery in Databases, 2019

Semantic Representation of Scientific Publications.

Sahar Vahdati, Said Fathalla, Sören Auer, Christoph Lange, Maria-Esther Vidal

Proceedings of the Digital Libraries for Open Knowledge, 2019

2018

Towards a Cloud-Based Service for Maintaining and Analyzing Data About Scientific Events.

Andreas Behrend, Sahar Vahdati, Christoph Lange, Christiane Engels

Proceedings of the Semantics, Analytics, Visualization, 2018

SAANSET: Semi-Automated Acquisition of Scholarly Metadata Using OpenResearch.org Platform.

Rebaz Omar, Sahar Vahdati, Christoph Lange, Maria-Esther Vidal, Andreas Behrend

Proceedings of the 12th IEEE International Conference on Semantic Computing, 2018

Reasoning Under Situation Awareness in a Temporal Database.

Andreas Behrend, Dieter Gawlick, Sahar Vahdati, Zhen Hua Liu

Proceedings of the Second IEEE International Conference on Robotic Computing, 2018

SemSur: A Core Ontology for the Semantic Representation of Research Findings.

Said Fathalla, Sahar Vahdati, Sören Auer, Christoph Lange

Proceedings of the 14th International Conference on Semantic Systems, 2018

Unveiling Scholarly Communities over Knowledge Graphs.

Sahar Vahdati, Guillermo Palma, Rahul Jyoti Nath, Christoph Lange, Sören Auer, Maria-Esther Vidal

Proceedings of the Digital Libraries for Open Knowledge, 2018

Metadata Analysis of Scholarly Events of Computer Science, Physics, Engineering, and Mathematics.

Said Fathalla, Sahar Vahdati, Sören Auer, Christoph Lange

Proceedings of the Digital Libraries for Open Knowledge, 2018

2017

SAVE-SD 2017: Third Workshop on Semantics, Analytics and Visualisation: Enhancing Scholarly Data.

Alejandra N. González-Beltrán, Francesco Osborne, Silvio Peroni, Sahar Vahdati

Proceedings of the 26th International Conference on World Wide Web Companion, 2017

Towards a Knowledge Graph Representing Research Findings by Semantifying Survey Articles.

Said Fathalla, Sahar Vahdati, Sören Auer, Christoph Lange

Proceedings of the Research and Advanced Technology for Digital Libraries, 2017

Analysing Scholarly Communication Metadata of Computer Science Events.

Said Fathalla, Sahar Vahdati, Christoph Lange, Sören Auer

Proceedings of the Research and Advanced Technology for Digital Libraries, 2017

Exploiting Interlinked Research Metadata.

Shirin Ameri, Sahar Vahdati, Christoph Lange

Proceedings of the Research and Advanced Technology for Digital Libraries, 2017

New Trends in Databases and Information Systems: Contributions from ADBIS 2017 Workshops.

Andreas Behrend, Diego Calvanese, Tania Cerquitelli, Silvia Chiusano, Christiane Engels, Stéphane Jean, Natalija Kozmina, Béatrice Markhoff, Oscar Romero, Sahar Vahdati

Proceedings of the New Trends in Databases and Information Systems, 2017

2016

Challenges as enablers for high quality linked data: Insights from the semantic publishing challenge.

Anastasia Dimou, Sahar Vahdati, Angelo Di Iorio, Christoph Lange, Ruben Verborgh, Erik Mannens

PeerJ Prepr., 2016

A semi-automatic approach for detecting dataset references in social science texts.

Behnam Ghavimi, Philipp Mayr, Christoph Lange, Sahar Vahdati, Sören Auer

Inf. Serv. Use, 2016

Semantic Publishing Challenge - Assessing the Quality of Scientific Output in Its Ecosystem.

Anastasia Dimou, Angelo Di Iorio, Christoph Lange, Sahar Vahdati

Proceedings of the Semantic Web Challenges - Third SemWebEval Challenge at ESWC 2016, Heraklion, Crete, Greece, May 29, 2016

Identifying and Improving Dataset References in Social Sciences Full Texts.

Behnam Ghavimi, Philipp Mayr, Sahar Vahdati, Christoph Lange

Proceedings of the Positioning and Power in Academic Publishing: Players, 2016

OpenResearch: Collaborative Management of Scholarly Communication Metadata.

Sahar Vahdati, Natanael Arndt, Sören Auer, Christoph Lange

Proceedings of the Knowledge Engineering and Knowledge Management, 2016

Facilitating the Management and Analysis of Scholarly Communication Metadata.

Sahar Vahdati

Proceedings of the Knowledge Engineering and Knowledge Management, 2016

2015

Mapping Large Scale Research Metadata to Linked Data: A Performance Comparison of HBase, CSV and XML.

Sahar Vahdati, Farah Karim, Jyun-Yao Huang, Christoph Lange

Proceedings of the Metadata and Semantics Research - 9th Research Conference, 2015

OpenCourseWare observatory: does the quality of OpenCourseWare live up to its promise?

Sahar Vahdati, Christoph Lange, Sören Auer

Proceedings of the Fifth International Conference on Learning Analytics And Knowledge, 2015

Towards Linked Data Update Notifications Reviewing and Generalizing the SparqlPuSH Approach.

Magnus Knuth, Dinesh Reddy, Anastasia Dimou, Sahar Vahdati, George Kastrinakis

Proceedings of the Workshop on Negative or Inconclusive Results in Semantic Web, 2015

Semantic Publishing Challenge - Assessing the Quality of Scientific Output by Information Extraction and Interlinking.

Angelo Di Iorio, Christoph Lange, Anastasia Dimou, Sahar Vahdati

Proceedings of the Semantic Web Evaluation Challenges, 2015

2014

A Flexible System for a Comprehensive Analysis of Bibliographical Data.

Sahar Vahdati, Andreas Behrend, Gereon Schüller, Rainer Manthey

Proceedings of the WEBIST 2014, 2014

Identifying research schools using enriched bibliographical metadata.

Sahar Vahdati, Andreas Behrend, Christoph Lange

Proceedings of the 14th International Conference on Knowledge Management and Data-driven Business, 2014