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Hagen, G.M. (author), Caarls, W. (author), Thomas, M. (author), Hill, A. (author), Lidke, K.A. (author), Rieger, B. (author), Fritsch, C. (author), Van Geest, B. (author), Jovin, T.M. (author), Arndt-Jovin, D.J. (author)We report on a new generation, commercial prototype of a programmable array optical sectioning fluorescence microscope (PAM) for rapid, light efficient 3D imaging of living specimens. The stand-alone module, including light source(s) and detector(s), features an innovative optical design and a ferroelectric liquid-crystal-on-silicon (LCoS)...conference paper 2007
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- Rieger, B. (author), Van Vliet, L.J. (author) conference paper 2001
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Dietrich, H.R.C. (author), Vermolen, B.J. (author), Rieger, B. (author), Young, I.T. (author), Garini, Y. (author)Single-molecule techniques continue to gain in popularity in research disciplines such as the study of intermolecular interactions. These techniques provide information that otherwise would be lost by using bulk measurements that deal with a large number of molecules. We describe in this report the motion of tethered DNA molecules that have been...conference paper 2007
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Chakrova, N. (author), Rieger, B. (author), Stallinga, S. (author)We present a versatile fluorescence microscope, built by complementing a conventional fluorescence microscope with a digital micro-mirror device (DMD) in the illumination path. Arbitrary patterns can be created on the DMD and projected onto the sample. This patterned illumination can be used to improve lateral and axial resolution over the...conference paper 2015
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Draws, T.A. (author), Rieger, A. (author), Inel, O. (author), Gadiraju, Ujwal (author), Tintarev, N. (author)Recent research has demonstrated that cognitive biases such as the confirmation bias or the anchoring effect can negatively affect the quality of crowdsourced data. In practice, however, such biases go unnoticed unless specifically assessed or controlled for. Task requesters need to ensure that task workflow and design choices do not trigger...conference paper 2021
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Rieger, A. (author), Theune, Mariët (author), Tintarev, N. (author)Cognitive biases in the context of consuming online information filtered by recommender systems may lead to sub-optimal choices. One approach to mitigate such biases is through interface and interaction design. This survey reviews studies focused on cognitive bias mitigation of recommender system users during two processes: 1) item selection and...conference paper 2021
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Rieger, A. (author), Draws, T.A. (author), Theune, Mariët (author), Tintarev, N. (author)During online information search, users tend to select search results that confirm previous beliefs and ignore competing possibilities. This systematic pattern in human behavior is known as confirmation bias. In this paper, we study the effect of obfuscation (i.e., hiding the result unless the user clicks on it) with warning labels and the...conference paper 2021
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Guo, Y. (author), Rieger, B. (author)Regularization has been introduced to electron tomography for enhancing the reconstruction quality. Since over-regularization smears out sharp edges and under-regularization leaves the image too noisy, finding the optimal regularization strength is crucial. To this end, one can either manually tune regularization parameters by trial and error...conference paper 2019
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Draws, T.A. (author), Roy, N. (author), Inel, Oana (author), Rieger, A. (author), Hada, Rishav (author), Yalcin, Mehmet Orcun (author), Timmermans, Benjamin (author), Tintarev, N. (author)Adverse phenomena such as the search engine manipulation effect (SEME), where web search users change their attitude on a topic following whatever most highly-ranked search results promote, represent crucial challenges for research and industry. However, the current lack of automatic methods to comprehensively measure or increase viewpoint...conference paper 2023
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Li, H. (author), Rieger, Phillip (author), Zeitouni, Shaza (author), Picek, S. (author), Sadeghi, Ahmad Reza (author)Federated Learning (FL) has become very popular since it enables clients to train a joint model collaboratively without sharing their private data. However, FL has been shown to be susceptible to backdoor and inference attacks. While in the former, the adversary injects manipulated updates into the aggregation process; the latter leverages...conference paper 2023
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Rieger, A. (author), Bredius, F. (author), Tintarev, N. (author), Pera, M.S. (author)We often use search engines when seeking information for opinion-forming and decision-making on debated topics. However, searching for resources on debated topics to gain well-rounded knowledge is cognitively demanding, leaving us vulnerable to cognitive biases, such as confirmation bias. This can impede well-informed decision-making, and on...conference paper 2023
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Rieger, A. (author)While the web offers a great potential to find and share information, the cognitively demanding conditions of online interactions can leave users vulnerable to cognitive biases, such as the confirmation bias-the tendency to favor information that confirms prior attitudes and beliefs when searching for, selecting, interpreting, sharing, and...conference paper 2022
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Rieger, A. (author), Shaheen, Qurat Ul Ain (author), Sierra, Carles (author), Theune, Mariet (author), Tintarev, N. (author)Online debates allow for large-scale participation by users with different opinions, values, and backgrounds. While this is beneficial for democratic discourse, such debates often tend to be cognitively demanding due to the high quantity and low quality of non-expert contributions. High cognitive demand, in turn, can make users vulnerable to...conference paper 2022
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Rieger, A. (author), Bredius, Frank (author), Theune, Mariët (author), Pera, M.S. (author)An essential characteristic for unbiased and diligent information-seeking that can enable informed opinion formation and decision-making is intellectual humility (IH), the awareness of the limitations of one's knowledge and opinions. While researchers have recognized the potential to boost IH in individuals, the effect of such interventions...conference paper 2024
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Guo, Y. (author), Rieger, B. (author)With electron tomography, we can reconstruct a threedimensional<br/>(3D) volume of a specimen from a series of its two-dimensional (2D) projection images on the nanoscale. In a scanning transmission electron microscope (STEM), element-specific maps and mass-contrast projections can be simultaneously acquired from the X-ray spectrometer and...conference paper 2018
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Guo, Y. (author), Rieger, B. (author)Bimodal tomography introduces a weighting factor α to incorporate X-ray data into projection images acquired from scanning transmission electron microscope (STEM) for achieving an atom-specific three-dimensional (3D) reconstruction of an object on the nanoscale. Currently its value is chosen by computing reconstructions for a large range of...conference paper 2018
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Colmenarejo, Alejandra Bringas (author), Nannini, L.N. (author), Rieger, A. (author), Scott, Kristen M. (author), Zhao, Xuan (author), Patro, Gourab K. (author), Kasneci, Gjergji (author), Kinder-Kurlanda, Katharina (author)With increasing digitalization, Artificial Intelligence (AI) is becoming ubiquitous. AI-based systems to identify, optimize, automate, and scale solutions to complex economic and societal problems are being proposed and implemented. This has motivated regulation efforts, including the Proposal of an EU AI Act. This interdisciplinary position...conference paper 2022
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Rieger, A. (author), Draws, T.A. (author), Mattis, Nicolas (author), Maxwell, David (author), Elsweiler, David (author), Gadiraju, Ujwal (author), McKay, Dana (author), Bozzon, A. (author), Pera, M.S. (author)Web search has evolved into a platform people rely on for opinion formation on debated topics. Yet, pursuing this search intent can carry serious consequences for individuals and society and involves a high risk of biases. We argue that web search can and should empower users to form opinions responsibly and that the information retrieval...conference paper 2024
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Rieger, B. (author)In this thesis we investigate the measurement of local properties in multi-dimensional grey-value images. Special attention is given to orientation representation and curvature estimation. Furthermore, the possibility to compute global shape properties from these local properties. We aim to derive sampling-error free measurements. A sampling...doctoral thesis 2004
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Rieger, V.S. (author)Emissions of road traffic crucially influence Earth’s climate. The vehicle fleet emits not only carbon dioxide (CO2), but also nitrogen oxides (NOx), volatile organic compounds (VOC) and carbon monoxide (CO) which produce ozone (O3) and destroy methane (CH4) in the troposphere. As the demand of mobility is expected to further increase in future,...doctoral thesis 2018