[{"user_id":"42514","title":"InAs heteroepitaxy on nanopillar-patterned GaAs (111)A","status":"public","date_created":"2020-07-29T08:25:37Z","publication_identifier":{"issn":["0022-0248"]},"publication_status":"published","author":[{"full_name":"Kunnathully, Vinay S.","first_name":"Vinay S.","last_name":"Kunnathully"},{"full_name":"Riedl, Thomas","first_name":"Thomas","last_name":"Riedl"},{"full_name":"Trapp, Alexander","first_name":"Alexander","last_name":"Trapp"},{"first_name":"Timo","full_name":"Langer, Timo","last_name":"Langer"},{"full_name":"Reuter, Dirk","first_name":"Dirk","id":"37763","last_name":"Reuter"},{"last_name":"Lindner","first_name":"Jörg K.N.","full_name":"Lindner, Jörg K.N."}],"publication":"Journal of Crystal Growth","department":[{"_id":"15"},{"_id":"230"}],"article_number":"125597","doi":"10.1016/j.jcrysgro.2020.125597","date_updated":"2022-01-06T06:53:12Z","_id":"17434","language":[{"iso":"eng"}],"citation":{"ieee":"V. S. Kunnathully, T. Riedl, A. Trapp, T. Langer, D. Reuter, and J. K. N. Lindner, “InAs heteroepitaxy on nanopillar-patterned GaAs (111)A,” Journal of Crystal Growth, 2020.","short":"V.S. Kunnathully, T. Riedl, A. Trapp, T. Langer, D. Reuter, J.K.N. Lindner, Journal of Crystal Growth (2020).","mla":"Kunnathully, Vinay S., et al. “InAs Heteroepitaxy on Nanopillar-Patterned GaAs (111)A.” Journal of Crystal Growth, 125597, 2020, doi:10.1016/j.jcrysgro.2020.125597.","bibtex":"@article{Kunnathully_Riedl_Trapp_Langer_Reuter_Lindner_2020, title={InAs heteroepitaxy on nanopillar-patterned GaAs (111)A}, DOI={10.1016/j.jcrysgro.2020.125597}, number={125597}, journal={Journal of Crystal Growth}, author={Kunnathully, Vinay S. and Riedl, Thomas and Trapp, Alexander and Langer, Timo and Reuter, Dirk and Lindner, Jörg K.N.}, year={2020} }","ama":"Kunnathully VS, Riedl T, Trapp A, Langer T, Reuter D, Lindner JKN. InAs heteroepitaxy on nanopillar-patterned GaAs (111)A. Journal of Crystal Growth. 2020. doi:10.1016/j.jcrysgro.2020.125597","apa":"Kunnathully, V. S., Riedl, T., Trapp, A., Langer, T., Reuter, D., & Lindner, J. K. N. (2020). InAs heteroepitaxy on nanopillar-patterned GaAs (111)A. Journal of Crystal Growth. https://doi.org/10.1016/j.jcrysgro.2020.125597","chicago":"Kunnathully, Vinay S., Thomas Riedl, Alexander Trapp, Timo Langer, Dirk Reuter, and Jörg K.N. Lindner. “InAs Heteroepitaxy on Nanopillar-Patterned GaAs (111)A.” Journal of Crystal Growth, 2020. https://doi.org/10.1016/j.jcrysgro.2020.125597."},"type":"journal_article","year":"2020"},{"doi":"10.1103/physrevb.101.165429","_id":"17435","date_updated":"2022-01-06T06:53:12Z","language":[{"iso":"eng"}],"citation":{"short":"M. Geier, J. Freudenfeld, J.T. Silva, V. Umansky, D. Reuter, A.D. Wieck, P.W. Brouwer, S. Ludwig, Physical Review B (2020).","ieee":"M. Geier et al., “Electrostatic potential shape of gate-defined quantum point contacts,” Physical Review B, 2020.","ama":"Geier M, Freudenfeld J, Silva JT, et al. Electrostatic potential shape of gate-defined quantum point contacts. Physical Review B. 2020. doi:10.1103/physrevb.101.165429","apa":"Geier, M., Freudenfeld, J., Silva, J. T., Umansky, V., Reuter, D., Wieck, A. D., … Ludwig, S. (2020). Electrostatic potential shape of gate-defined quantum point contacts. Physical Review B. https://doi.org/10.1103/physrevb.101.165429","chicago":"Geier, M., J. Freudenfeld, J. T. Silva, V. Umansky, Dirk Reuter, A. D. Wieck, P. W. Brouwer, and S. Ludwig. “Electrostatic Potential Shape of Gate-Defined Quantum Point Contacts.” Physical Review B, 2020. https://doi.org/10.1103/physrevb.101.165429.","bibtex":"@article{Geier_Freudenfeld_Silva_Umansky_Reuter_Wieck_Brouwer_Ludwig_2020, title={Electrostatic potential shape of gate-defined quantum point contacts}, DOI={10.1103/physrevb.101.165429}, journal={Physical Review B}, author={Geier, M. and Freudenfeld, J. and Silva, J. T. and Umansky, V. and Reuter, Dirk and Wieck, A. D. and Brouwer, P. W. and Ludwig, S.}, year={2020} }","mla":"Geier, M., et al. “Electrostatic Potential Shape of Gate-Defined Quantum Point Contacts.” Physical Review B, 2020, doi:10.1103/physrevb.101.165429."},"type":"journal_article","year":"2020","user_id":"42514","title":"Electrostatic potential shape of gate-defined quantum point contacts","date_created":"2020-07-29T08:27:47Z","status":"public","publication_status":"published","publication_identifier":{"issn":["2469-9950","2469-9969"]},"publication":"Physical Review B","department":[{"_id":"15"},{"_id":"230"}],"author":[{"first_name":"M.","full_name":"Geier, M.","last_name":"Geier"},{"first_name":"J.","full_name":"Freudenfeld, J.","last_name":"Freudenfeld"},{"last_name":"Silva","first_name":"J. T.","full_name":"Silva, J. T."},{"first_name":"V.","full_name":"Umansky, V.","last_name":"Umansky"},{"first_name":"Dirk","full_name":"Reuter, Dirk","last_name":"Reuter","id":"37763"},{"full_name":"Wieck, A. D.","first_name":"A. D.","last_name":"Wieck"},{"first_name":"P. W.","full_name":"Brouwer, P. W.","last_name":"Brouwer"},{"last_name":"Ludwig","first_name":"S.","full_name":"Ludwig, S."}]},{"article_number":"20101","doi":"10.1051/epjap/2020190202","_id":"17436","date_updated":"2022-01-06T06:53:12Z","type":"journal_article","year":"2020","citation":{"short":"M. Javaid Iqbal, D. Reuter, A.D. Wieck, C. van der Wal, The European Physical Journal Applied Physics (2020).","ieee":"M. Javaid Iqbal, D. Reuter, A. D. Wieck, and C. van der Wal, “Characterization of low-resistance ohmic contacts to a two-dimensional electron gas in a GaAs/AlGaAs heterostructure,” The European Physical Journal Applied Physics, 2020.","chicago":"Javaid Iqbal, Muhammad, Dirk Reuter, Andreas Dirk Wieck, and Caspar van der Wal. “Characterization of Low-Resistance Ohmic Contacts to a Two-Dimensional Electron Gas in a GaAs/AlGaAs Heterostructure.” The European Physical Journal Applied Physics, 2020. https://doi.org/10.1051/epjap/2020190202.","ama":"Javaid Iqbal M, Reuter D, Wieck AD, van der Wal C. Characterization of low-resistance ohmic contacts to a two-dimensional electron gas in a GaAs/AlGaAs heterostructure. The European Physical Journal Applied Physics. 2020. doi:10.1051/epjap/2020190202","apa":"Javaid Iqbal, M., Reuter, D., Wieck, A. D., & van der Wal, C. (2020). Characterization of low-resistance ohmic contacts to a two-dimensional electron gas in a GaAs/AlGaAs heterostructure. The European Physical Journal Applied Physics. https://doi.org/10.1051/epjap/2020190202","mla":"Javaid Iqbal, Muhammad, et al. “Characterization of Low-Resistance Ohmic Contacts to a Two-Dimensional Electron Gas in a GaAs/AlGaAs Heterostructure.” The European Physical Journal Applied Physics, 20101, 2020, doi:10.1051/epjap/2020190202.","bibtex":"@article{Javaid Iqbal_Reuter_Wieck_van der Wal_2020, title={Characterization of low-resistance ohmic contacts to a two-dimensional electron gas in a GaAs/AlGaAs heterostructure}, DOI={10.1051/epjap/2020190202}, number={20101}, journal={The European Physical Journal Applied Physics}, author={Javaid Iqbal, Muhammad and Reuter, Dirk and Wieck, Andreas Dirk and van der Wal, Caspar}, year={2020} }"},"language":[{"iso":"eng"}],"title":"Characterization of low-resistance ohmic contacts to a two-dimensional electron gas in a GaAs/AlGaAs heterostructure","user_id":"42514","abstract":[{"lang":"eng","text":"The study of electron transport in low-dimensional systems is of importance, not only from a fundamental point of view, but also for future electronic and spintronic devices. In this context heterostructures containing a two-dimensional electron gas (2DEG) are a key technology. In particular GaAs/AlGaAs heterostructures, with a 2DEG at typically 100 nm below the surface, are widely studied. In order to explore electron transport in such systems, low-resistance ohmic contacts are required that connect the 2DEG to macroscopic measurement leads at the surface. Here we report on designing and measuring a dedicated device for unraveling the various resistance contributions in such contacts, which include pristine 2DEG series resistance, the 2DEG resistance under a contact, the contact resistance itself, and the influence of pressing a bonding wire onto a contact. We also report here a recipe for contacts with very low resistance values that remain below 10 Ω for annealing times between 20 and 350 s, hence providing the flexibility to use this method for materials with different 2DEG depths. The type of heating, temperature ramp rate and gas forming used for annealing is found to strongly influence the annealing process and hence the quality of the resulting contacts."}],"publication_status":"published","publication_identifier":{"issn":["1286-0042","1286-0050"]},"status":"public","date_created":"2020-07-29T08:29:26Z","author":[{"last_name":"Javaid Iqbal","first_name":"Muhammad","full_name":"Javaid Iqbal, Muhammad"},{"id":"37763","last_name":"Reuter","full_name":"Reuter, Dirk","first_name":"Dirk"},{"last_name":"Wieck","first_name":"Andreas Dirk","full_name":"Wieck, Andreas Dirk"},{"full_name":"van der Wal, Caspar","first_name":"Caspar","last_name":"van der Wal"}],"department":[{"_id":"15"},{"_id":"230"}],"publication":"The European Physical Journal Applied Physics"},{"_id":"17437","date_updated":"2022-01-06T06:53:12Z","doi":"10.1103/physrevb.101.125303","language":[{"iso":"eng"}],"type":"journal_article","year":"2020","citation":{"ama":"Ebler C, Labud PA, Rai AK, Reuter D, Wieck AD, Ludwig A. Electrical detection of excitonic states by time-resolved conductance measurements. Physical Review B. 2020. doi:10.1103/physrevb.101.125303","apa":"Ebler, C., Labud, P. A., Rai, A. K., Reuter, D., Wieck, A. D., & Ludwig, A. (2020). Electrical detection of excitonic states by time-resolved conductance measurements. Physical Review B. https://doi.org/10.1103/physrevb.101.125303","chicago":"Ebler, C., P. A. Labud, A. K. Rai, Dirk Reuter, A. D. Wieck, and A. Ludwig. “Electrical Detection of Excitonic States by Time-Resolved Conductance Measurements.” Physical Review B, 2020. https://doi.org/10.1103/physrevb.101.125303.","bibtex":"@article{Ebler_Labud_Rai_Reuter_Wieck_Ludwig_2020, title={Electrical detection of excitonic states by time-resolved conductance measurements}, DOI={10.1103/physrevb.101.125303}, journal={Physical Review B}, author={Ebler, C. and Labud, P. A. and Rai, A. K. and Reuter, Dirk and Wieck, A. D. and Ludwig, A.}, year={2020} }","mla":"Ebler, C., et al. “Electrical Detection of Excitonic States by Time-Resolved Conductance Measurements.” Physical Review B, 2020, doi:10.1103/physrevb.101.125303.","short":"C. Ebler, P.A. Labud, A.K. Rai, D. Reuter, A.D. Wieck, A. Ludwig, Physical Review B (2020).","ieee":"C. Ebler, P. A. Labud, A. K. Rai, D. Reuter, A. D. Wieck, and A. Ludwig, “Electrical detection of excitonic states by time-resolved conductance measurements,” Physical Review B, 2020."},"user_id":"42514","title":"Electrical detection of excitonic states by time-resolved conductance measurements","department":[{"_id":"15"},{"_id":"230"}],"publication":"Physical Review B","author":[{"first_name":"C.","full_name":"Ebler, C.","last_name":"Ebler"},{"full_name":"Labud, P. A.","first_name":"P. A.","last_name":"Labud"},{"full_name":"Rai, A. K.","first_name":"A. K.","last_name":"Rai"},{"last_name":"Reuter","id":"37763","first_name":"Dirk","full_name":"Reuter, Dirk"},{"last_name":"Wieck","first_name":"A. D.","full_name":"Wieck, A. D."},{"last_name":"Ludwig","first_name":"A.","full_name":"Ludwig, A."}],"date_created":"2020-07-29T08:30:34Z","status":"public","publication_status":"published","publication_identifier":{"issn":["2469-9950","2469-9969"]}},{"issue":"31","article_number":"eabb6667","intvolume":" 6","_id":"17523","type":"journal_article","citation":{"mla":"Zhu, Lingxiao, et al. “A Dielectric Metasurface Optical Chip for the Generation of Cold Atoms.” Science Advances, vol. 6, no. 31, eabb6667, American Association for the Advancement of Science, 2020, doi:10.1126/sciadv.abb6667.","bibtex":"@article{Zhu_Liu_Sain_Wang_Schlickriede_Tang_Deng_Li_Yang_Holynski_et al._2020, title={A dielectric metasurface optical chip for the generation of cold atoms}, volume={6}, DOI={10.1126/sciadv.abb6667}, number={31eabb6667}, journal={Science Advances}, publisher={American Association for the Advancement of Science}, author={Zhu, Lingxiao and Liu, Xuan and Sain, Basudeb and Wang, Mengyao and Schlickriede, Christian and Tang, Yutao and Deng, Junhong and Li, Kingfai and Yang, Jun and Holynski, Michael and et al.}, year={2020} }","chicago":"Zhu, Lingxiao, Xuan Liu, Basudeb Sain, Mengyao Wang, Christian Schlickriede, Yutao Tang, Junhong Deng, et al. “A Dielectric Metasurface Optical Chip for the Generation of Cold Atoms.” Science Advances 6, no. 31 (2020). https://doi.org/10.1126/sciadv.abb6667.","apa":"Zhu, L., Liu, X., Sain, B., Wang, M., Schlickriede, C., Tang, Y., … Li, G. (2020). A dielectric metasurface optical chip for the generation of cold atoms. Science Advances, 6(31). https://doi.org/10.1126/sciadv.abb6667","ama":"Zhu L, Liu X, Sain B, et al. A dielectric metasurface optical chip for the generation of cold atoms. Science Advances. 2020;6(31). doi:10.1126/sciadv.abb6667","ieee":"L. Zhu et al., “A dielectric metasurface optical chip for the generation of cold atoms,” Science Advances, vol. 6, no. 31, 2020.","short":"L. Zhu, X. Liu, B. Sain, M. Wang, C. Schlickriede, Y. Tang, J. Deng, K. Li, J. Yang, M. Holynski, S. Zhang, T. Zentgraf, K. Bongs, Y.-H. Lien, G. Li, Science Advances 6 (2020)."},"year":"2020","user_id":"30525","abstract":[{"text":"Compact and robust cold atom sources are increasingly important for quantum research, especially for transferring cutting-edge quantum science into practical applications. In this study, we report on a novel scheme that uses a metasurface optical chip to replace the conventional bulky optical elements used to produce a cold atomic ensemble with a single incident laser beam, which is split by the metasurface into multiple beams of the desired polarization states. Atom numbers ~107 and temperatures (about 35 μK) of relevance to quantum sensing are achieved in a compact and robust fashion. Our work highlights the substantial progress toward fully integrated cold atom quantum devices by exploiting metasurface optical chips, which may have great potential in quantum sensing, quantum computing, and other areas.","lang":"eng"}],"article_type":"original","date_created":"2020-08-02T07:22:03Z","status":"public","volume":6,"publication":"Science Advances","publisher":"American Association for the Advancement of Science","author":[{"last_name":"Zhu","first_name":"Lingxiao","full_name":"Zhu, Lingxiao"},{"last_name":"Liu","full_name":"Liu, Xuan","first_name":"Xuan"},{"last_name":"Sain","full_name":"Sain, Basudeb","first_name":"Basudeb"},{"full_name":"Wang, Mengyao","first_name":"Mengyao","last_name":"Wang"},{"id":"59792","last_name":"Schlickriede","full_name":"Schlickriede, Christian","first_name":"Christian"},{"full_name":"Tang, Yutao","first_name":"Yutao","last_name":"Tang"},{"full_name":"Deng, Junhong","first_name":"Junhong","last_name":"Deng"},{"last_name":"Li","full_name":"Li, Kingfai","first_name":"Kingfai"},{"first_name":"Jun","full_name":"Yang, Jun","last_name":"Yang"},{"full_name":"Holynski, Michael","first_name":"Michael","last_name":"Holynski"},{"full_name":"Zhang, Shuang","first_name":"Shuang","last_name":"Zhang"},{"first_name":"Thomas","full_name":"Zentgraf, Thomas","orcid":"0000-0002-8662-1101","last_name":"Zentgraf","id":"30525"},{"last_name":"Bongs","full_name":"Bongs, Kai","first_name":"Kai"},{"first_name":"Yu-Hung","full_name":"Lien, Yu-Hung","last_name":"Lien"},{"last_name":"Li","first_name":"Guixin","full_name":"Li, Guixin"}],"quality_controlled":"1","doi":"10.1126/sciadv.abb6667","date_updated":"2022-01-06T06:53:14Z","language":[{"iso":"eng"}],"title":"A dielectric metasurface optical chip for the generation of cold atoms","publication_status":"published","publication_identifier":{"issn":["2375-2548"]},"department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}]},{"doi":"10.1016/j.wasman.2020.04.042","date_updated":"2022-01-06T06:53:15Z","_id":"17578","language":[{"iso":"eng"}],"page":"74-82","citation":{"bibtex":"@article{Schweizer_Becker-Staines_Tröster_2020, title={Separation and reclamation of automotive hybrid structures made of metal and fibre-reinforced plastic}, DOI={10.1016/j.wasman.2020.04.042}, journal={Waste Management}, author={Schweizer, Swetlana and Becker-Staines, Anna and Tröster, Thomas}, year={2020}, pages={74–82} }","mla":"Schweizer, Swetlana, et al. “Separation and Reclamation of Automotive Hybrid Structures Made of Metal and Fibre-Reinforced Plastic.” Waste Management, 2020, pp. 74–82, doi:10.1016/j.wasman.2020.04.042.","chicago":"Schweizer, Swetlana, Anna Becker-Staines, and Thomas Tröster. “Separation and Reclamation of Automotive Hybrid Structures Made of Metal and Fibre-Reinforced Plastic.” Waste Management, 2020, 74–82. https://doi.org/10.1016/j.wasman.2020.04.042.","apa":"Schweizer, S., Becker-Staines, A., & Tröster, T. (2020). Separation and reclamation of automotive hybrid structures made of metal and fibre-reinforced plastic. Waste Management, 74–82. https://doi.org/10.1016/j.wasman.2020.04.042","ama":"Schweizer S, Becker-Staines A, Tröster T. Separation and reclamation of automotive hybrid structures made of metal and fibre-reinforced plastic. Waste Management. 2020:74-82. doi:10.1016/j.wasman.2020.04.042","ieee":"S. Schweizer, A. Becker-Staines, and T. Tröster, “Separation and reclamation of automotive hybrid structures made of metal and fibre-reinforced plastic,” Waste Management, pp. 74–82, 2020.","short":"S. Schweizer, A. Becker-Staines, T. Tröster, Waste Management (2020) 74–82."},"year":"2020","type":"journal_article","user_id":"8938","title":"Separation and reclamation of automotive hybrid structures made of metal and fibre-reinforced plastic","date_created":"2020-08-04T07:37:41Z","status":"public","publication_identifier":{"issn":["0956-053X"]},"publication_status":"published","publication":"Waste Management","author":[{"last_name":"Schweizer","full_name":"Schweizer, Swetlana","first_name":"Swetlana"},{"last_name":"Becker-Staines","full_name":"Becker-Staines, Anna","first_name":"Anna"},{"last_name":"Tröster","full_name":"Tröster, Thomas","first_name":"Thomas"}]},{"date_updated":"2022-01-06T06:53:15Z","_id":"17589","doi":"10.1016/j.ijrefrig.2020.07.025","language":[{"iso":"eng"}],"type":"journal_article","citation":{"ieee":"G. Sonnenrein et al., “Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015,” International Journal of Refrigeration, 2020.","short":"G. Sonnenrein, E. Baumhögger, A. Elsner, A. Morbach, M. Neukötter, A. Paul, J. Vrabec, International Journal of Refrigeration (2020).","mla":"Sonnenrein, G., et al. “Improving the Performance of Household Refrigerating Appliances through the Integration of Phase Change Materials in the Context of the New Global Refrigerator Standard IEC 62552:2015.” International Journal of Refrigeration, 2020, doi:10.1016/j.ijrefrig.2020.07.025.","bibtex":"@article{Sonnenrein_Baumhögger_Elsner_Morbach_Neukötter_Paul_Vrabec_2020, title={Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015}, DOI={10.1016/j.ijrefrig.2020.07.025}, journal={International Journal of Refrigeration}, author={Sonnenrein, G. and Baumhögger, Elmar and Elsner, A. and Morbach, A. and Neukötter, M. and Paul, A. and Vrabec, J.}, year={2020} }","apa":"Sonnenrein, G., Baumhögger, E., Elsner, A., Morbach, A., Neukötter, M., Paul, A., & Vrabec, J. (2020). Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015. International Journal of Refrigeration. https://doi.org/10.1016/j.ijrefrig.2020.07.025","ama":"Sonnenrein G, Baumhögger E, Elsner A, et al. Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015. International Journal of Refrigeration. 2020. doi:10.1016/j.ijrefrig.2020.07.025","chicago":"Sonnenrein, G., Elmar Baumhögger, A. Elsner, A. Morbach, M. Neukötter, A. Paul, and J. Vrabec. “Improving the Performance of Household Refrigerating Appliances through the Integration of Phase Change Materials in the Context of the New Global Refrigerator Standard IEC 62552:2015.” International Journal of Refrigeration, 2020. https://doi.org/10.1016/j.ijrefrig.2020.07.025."},"year":"2020","user_id":"15164","title":"Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015","author":[{"last_name":"Sonnenrein","full_name":"Sonnenrein, G.","first_name":"G."},{"id":"15164","last_name":"Baumhögger","full_name":"Baumhögger, Elmar","first_name":"Elmar"},{"first_name":"A.","full_name":"Elsner, A.","last_name":"Elsner"},{"full_name":"Morbach, A.","first_name":"A.","last_name":"Morbach"},{"last_name":"Neukötter","full_name":"Neukötter, M.","first_name":"M."},{"last_name":"Paul","first_name":"A.","full_name":"Paul, A."},{"full_name":"Vrabec, J.","first_name":"J.","last_name":"Vrabec"}],"publication":"International Journal of Refrigeration","department":[{"_id":"155"}],"status":"public","date_created":"2020-08-04T13:57:51Z","publication_status":"published","publication_identifier":{"issn":["0140-7007"]}},{"title":"Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction","user_id":"5786","abstract":[{"lang":"eng","text":"Syntactic annotation of corpora in the form of part-of-speech (POS) tags is a key requirement for both linguistic research and subsequent automated natural language processing (NLP) tasks. This problem is commonly tackled using machine learning methods, i.e., by training a POS tagger on a sufficiently large corpus of labeled data. \r\nWhile the problem of POS tagging can essentially be considered as solved for modern languages, historical corpora turn out to be much more difficult, especially due to the lack of native speakers and sparsity of training data. Moreover, most texts have no sentences as we know them today, nor a common orthography.\r\nThese irregularities render the task of automated POS tagging more difficult and error-prone. Under these circumstances, instead of forcing the POS tagger to predict and commit to a single tag, it should be enabled to express its uncertainty. In this paper, we consider POS tagging within the framework of set-valued prediction, which allows the POS tagger to express its uncertainty via predicting a set of candidate POS tags instead of guessing a single one. The goal is to guarantee a high confidence that the correct POS tag is included while keeping the number of candidates small.\r\nIn our experimental study, we find that extending state-of-the-art POS taggers to set-valued prediction yields more precise and robust taggings, especially for unknown words, i.e., words not occurring in the training data."}],"publication_status":"submitted","date_created":"2020-08-05T06:52:53Z","project":[{"_id":"39","name":"InterGramm"}],"status":"public","department":[{"_id":"34"},{"_id":"355"},{"_id":"26"}],"publication":"Journal of Data Mining and Digital Humanities","publisher":"episciences","author":[{"orcid":"0000-0002-9461-7372","full_name":"Heid, Stefan Helmut","first_name":"Stefan Helmut","id":"39640","last_name":"Heid"},{"last_name":"Wever","id":"33176","first_name":"Marcel Dominik","orcid":" https://orcid.org/0000-0001-9782-6818","full_name":"Wever, Marcel Dominik"},{"last_name":"Hüllermeier","id":"48129","first_name":"Eyke","full_name":"Hüllermeier, Eyke"}],"oa":"1","_id":"17605","date_updated":"2022-01-06T06:53:15Z","citation":{"short":"S.H. Heid, M.D. Wever, E. Hüllermeier, Journal of Data Mining and Digital Humanities (n.d.).","ieee":"S. H. Heid, M. D. Wever, and E. Hüllermeier, “Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction,” Journal of Data Mining and Digital Humanities. episciences.","ama":"Heid SH, Wever MD, Hüllermeier E. Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction. Journal of Data Mining and Digital Humanities.","apa":"Heid, S. H., Wever, M. D., & Hüllermeier, E. (n.d.). Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction. In Journal of Data Mining and Digital Humanities. episciences.","chicago":"Heid, Stefan Helmut, Marcel Dominik Wever, and Eyke Hüllermeier. “Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction.” Journal of Data Mining and Digital Humanities. episciences, n.d.","mla":"Heid, Stefan Helmut, et al. “Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction.” Journal of Data Mining and Digital Humanities, episciences.","bibtex":"@article{Heid_Wever_Hüllermeier, title={Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction}, journal={Journal of Data Mining and Digital Humanities}, publisher={episciences}, author={Heid, Stefan Helmut and Wever, Marcel Dominik and Hüllermeier, Eyke} }"},"year":"2020","type":"preprint","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2008.01377"}]},{"date_updated":"2022-01-06T06:53:17Z","_id":"17703","main_file_link":[{"url":"https://ideas.repec.org/p/pdn/dispap/59.html"}],"language":[{"iso":"eng"}],"year":"2020","type":"working_paper","citation":{"mla":"Wengerek, Sascha Tobias. Share Price Reactions to Tariff Imposition Announcements in the Trump Era - An Event Study of the Trade Conflict. 2020.","bibtex":"@book{Wengerek_2020, title={Share price reactions to tariff imposition announcements in the Trump era - An event study of the trade conflict}, author={Wengerek, Sascha Tobias}, year={2020} }","chicago":"Wengerek, Sascha Tobias. Share Price Reactions to Tariff Imposition Announcements in the Trump Era - An Event Study of the Trade Conflict, 2020.","apa":"Wengerek, S. T. (2020). Share price reactions to tariff imposition announcements in the Trump era - An event study of the trade conflict.","ama":"Wengerek ST. Share Price Reactions to Tariff Imposition Announcements in the Trump Era - An Event Study of the Trade Conflict.; 2020.","ieee":"S. T. Wengerek, Share price reactions to tariff imposition announcements in the Trump era - An event study of the trade conflict. 2020.","short":"S.T. Wengerek, Share Price Reactions to Tariff Imposition Announcements in the Trump Era - An Event Study of the Trade Conflict, 2020."},"page":"63","abstract":[{"lang":"eng","text":"Employing a unique sample of 2,849 tariff imposition announcements by and against the United States (U.S.) over the period from 2018 to 2019, this study analyzes the impact of recent tariff announcements on share prices from 859 U.S. companies. We provide evidence for negative (cumulative) average abnormal stock returns due to tariff announcements during a symmetric three-day event window. We suggest that stock market investors expect adverse impacts of tariff impositions, e.g. a decrease in the companies' future cash flows and a threat of retaliation. The negative wealth effects are observed irrespective of whether the Trump administration announces safeguard tariffs to protect domestic firms or a retaliation is declared by foreign countries. Moreover, building several subsamples, we find that the adverse impact is mostly driven by announcements involving China and is associated with a variety of sector, tariff, trade and firm characteristics."}],"user_id":"48837","title":"Share price reactions to tariff imposition announcements in the Trump era - An event study of the trade conflict","author":[{"last_name":"Wengerek","id":"48837","first_name":"Sascha Tobias","full_name":"Wengerek, Sascha Tobias","orcid":"0000-0002-7820-3903"}],"department":[{"_id":"186"}],"keyword":["event study","international relations","protectionism","strategic trade policy","tariffs","trade conflict"],"status":"public","date_created":"2020-08-07T09:34:29Z","jel":["F14","F18","F23","F51"]},{"intvolume":" 37","_id":"17730","date_updated":"2022-01-06T06:53:19Z","article_number":"101717","doi":"10.1016/j.frl.2020.101717","citation":{"mla":"Ortmann, Regina, et al. “COVID-19 and Investor Behavior.” Finance Research Letters, vol. 37, 101717, 2020, doi:10.1016/j.frl.2020.101717.","bibtex":"@article{Ortmann_Pelster_Wengerek_2020, title={COVID-19 and investor behavior}, volume={37}, DOI={10.1016/j.frl.2020.101717}, number={101717}, journal={Finance Research Letters}, author={Ortmann, Regina and Pelster, Matthias and Wengerek, Sascha Tobias}, year={2020} }","apa":"Ortmann, R., Pelster, M., & Wengerek, S. T. (2020). COVID-19 and investor behavior. Finance Research Letters, 37. https://doi.org/10.1016/j.frl.2020.101717","ama":"Ortmann R, Pelster M, Wengerek ST. COVID-19 and investor behavior. Finance Research Letters. 2020;37. doi:10.1016/j.frl.2020.101717","chicago":"Ortmann, Regina, Matthias Pelster, and Sascha Tobias Wengerek. “COVID-19 and Investor Behavior.” Finance Research Letters 37 (2020). https://doi.org/10.1016/j.frl.2020.101717.","ieee":"R. Ortmann, M. Pelster, and S. T. Wengerek, “COVID-19 and investor behavior,” Finance Research Letters, vol. 37, 2020.","short":"R. Ortmann, M. Pelster, S.T. Wengerek, Finance Research Letters 37 (2020)."},"year":"2020","type":"journal_article","language":[{"iso":"eng"}],"title":"COVID-19 and investor behavior","user_id":"67265","author":[{"last_name":"Ortmann","id":"10020","first_name":"Regina","full_name":"Ortmann, Regina"},{"id":"67265","last_name":"Pelster","orcid":" https://orcid.org/0000-0001-5740-2420","full_name":"Pelster, Matthias","first_name":"Matthias"},{"last_name":"Wengerek","id":"48837","first_name":"Sascha Tobias","orcid":"0000-0002-7820-3903","full_name":"Wengerek, Sascha Tobias"}],"publication":"Finance Research Letters","department":[{"_id":"186"},{"_id":"578"}],"publication_status":"published","volume":37,"publication_identifier":{"issn":["1544-6123"]},"status":"public","date_created":"2020-08-08T08:52:14Z"}]