Magdalena Kaiser is a PhD Student in the Databases and Information Systems Group at the Max Planck Institute for Informatics (MPII), Saarbrücken, Germany, under the supervision of Prof. Gerhard Weikum and Dr. Rishiraj Saha Roy. Her research focuses on conversational question answering. In particular, she is interested in leveraging feedback to improve conversational systems. In her work, she applies techniques from Information Retrieval, Natural Language Processing and Machine Learning, particularly Reinforcement Learning. Prior to joining MPII, she worked as a researcher at the German Research Center for Artificial Intelligence (DFKI) for two years. She obtained her Master's degree from Saarland University and her Bachelor's degree from University Erlangen-Nürnberg, Germany.

• Question-Answering
• Knowledge Graphs
• Reinforcement Learning

• 08 October 2021 Presented a poster of our CONQUER project at SCAI'21
• 02 September 2021 Presented our CONQUER project at LWDA'21
• 12 July 2021 Presented our full paper "Reinforcement Learning from Reformulations in Conversational Question Answering over Knowledge Graphs" at SIGIR'21
• 14 April 2021: Our full paper "Reinforcement Learning from Reformulations in Conversational Question Answering over Knowledge Graphs" is accepted at SIGIR'21 (with Rishiraj Saha Roy and Gerhard Weikum)
• 2 May 2020: My Doctoral Consortium Paper "Incorporating User Feedback in Conversational Question Answering over Heterogeneous Web Sources" is accepted at SIGIR '20, Xi'an, China
• 23 April 2020: Our demo "Conversational Question Answering over Passages by Leveraging Word Proximity Networks" is accepted at SIGIR '20, Xi'an, China (with Rishiraj Saha Roy and Gerhard Weikum)
• January 2020: Our demo on conversational passage ranking is now online
• 13 - 15 November 2019: Presented our work CROWN at TREC 2019, Washington, USA

• Magdalena Kaiser, Rishiraj Saha Roy and Gerhard Weikum, Reinforcement Learning from Reformulations in Conversational Question Answering over Knowledge Graphs, SIGIR '21. [Preprint] [Data+Demo] [Code] [Slides] [Video] [Poster] [ACM Badge]
• Magdalena Kaiser, Incorporating User Feedback in Conversational Question Answering over Heterogeneous Web Sources, SIGIR '20.
• Magdalena Kaiser, Rishiraj Saha Roy and Gerhard Weikum, Conversational Question Answering over Passages by Leveraging Word Proximity Networks, SIGIR '20. [Preprint] [Demo] [Video]
• Magdalena Kaiser, Rishiraj Saha Roy and Gerhard Weikum, CROWN: Conversational Passage Ranking by Reasoning over Word Networks, 28th Text Retrieval Conference (TREC), 2019. [Preprint] [Code] [Slides] [Poster] [BibTeX]
• Magdalena Kaiser and Christian Bürckert, Context-Based Multimodal Output for Human-Robot Collaboration, 11th International IEEE Conference on Human System Interaction (HSI), 2018.

Programm committee member:

• ACL 2023
• SIGIR 2023 (Demo Track)
• SIGIR 2022 (Demo Track)
• WSDM 2022
• AAAI 2022

• Teaching Assistant for Selected Topics in Question Answering (Seminar, 7 ECTS) at Saarland University, Winter Term 2020/2021
• Teaching Assistant for Question Answering Systems (Advanced Lecture, 6 ECTS) at Saarland University, Summer Term 2020
• Teaching Assistant for Information Retrieval and Data Mining (Core Lecture, 9 ECTS) at Saarland University, Winter Term 2019/2020
• Bachelor Thesis supervision of Adina Pohle, Title: Teaching Object Properties to a Robot Multimodally at Saarland University (10/2018-10/2019)
• Teaching Assistant for AI for the Transfer of Control from Autonomous Systems to Humans (Seminar, 6 ECTS) at Saarland University, Summer Term 2018

• July 2017 - June 2019: Researcher at the Cognitive Assistants Department at the German Research Center for Artificial Intelligence (DFKI), Saarbrücken
• October 2015 - December 2016: Research Assistant at the Cognitive Assistants Department at the German Research Center for Artificial Intelligence (DFKI), Saarbrücken
• October 2012 - September 2014: Working Student at Siemens AG, Nürnberg

• July 2019 - present: PhD student in Computer Science at Saarland University and the Max Planck Institute for Informatics (supervisors: Prof. Gerhard Weikum and Dr. Rishiraj Saha Roy)
• October 2014 - May 2017: Master in Computer Science at Saarland University, Title of Master's Thesis: Multimodal Fission with a Focus on Collaborative Human-Robot Interaction (supervisor: Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster)
• October 2011 - September 2014: Bachelor in Computer Science at Friedrich-Alexander University Erlangen-Nürnberg, Title of Bachelor's Thesis: Combinatorial Auction for Resource Allocation on Multicore Processors (supervisor: Prof. Dr.-Ing. Jürgen Teich)

• Google Scholar
• DBLP
• GitHub
• LinkedIn
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