{"author":[{"first_name":"Amedeo Roberto","full_name":"Esposito, Amedeo Roberto","id":"9583e921-e1ad-11ec-9862-cef099626dc9","last_name":"Esposito"},{"full_name":"Gastpar, Michael","last_name":"Gastpar","first_name":"Michael"},{"last_name":"Issa","full_name":"Issa, Ibrahim","first_name":"Ibrahim"}],"date_created":"2024-09-08T22:01:12Z","conference":{"start_date":"2024-07-07","name":"ISIT: International Symposium on Information Theory","location":"Athens, Greece","end_date":"2024-07-12"},"date_published":"2024-08-19T00:00:00Z","acknowledgement":"The work in this paper was supported in part by the Swiss National Science Foundation under Grant 200364.","article_processing_charge":"No","_id":"17894","citation":{"ista":"Esposito AR, Gastpar M, Issa I. 2024. Variational characterizations of Sibson’s α-mutual information. Proceedings of the 2024 IEEE International Symposium on Information Theory . ISIT: International Symposium on Information Theory, 2110–2115.","ieee":"A. R. Esposito, M. Gastpar, and I. Issa, “Variational characterizations of Sibson’s α-mutual information,” in <i>Proceedings of the 2024 IEEE International Symposium on Information Theory </i>, Athens, Greece, 2024, pp. 2110–2115.","chicago":"Esposito, Amedeo Roberto, Michael Gastpar, and Ibrahim Issa. “Variational Characterizations of Sibson’s α-Mutual Information.” In <i>Proceedings of the 2024 IEEE International Symposium on Information Theory </i>, 2110–15. Institute of Electrical and Electronics Engineers, 2024. <a href=\"https://doi.org/10.1109/ISIT57864.2024.10619378\">https://doi.org/10.1109/ISIT57864.2024.10619378</a>.","ama":"Esposito AR, Gastpar M, Issa I. Variational characterizations of Sibson’s α-mutual information. In: <i>Proceedings of the 2024 IEEE International Symposium on Information Theory </i>. Institute of Electrical and Electronics Engineers; 2024:2110-2115. doi:<a href=\"https://doi.org/10.1109/ISIT57864.2024.10619378\">10.1109/ISIT57864.2024.10619378</a>","apa":"Esposito, A. R., Gastpar, M., &#38; Issa, I. (2024). Variational characterizations of Sibson’s α-mutual information. In <i>Proceedings of the 2024 IEEE International Symposium on Information Theory </i> (pp. 2110–2115). Athens, Greece: Institute of Electrical and Electronics Engineers. <a href=\"https://doi.org/10.1109/ISIT57864.2024.10619378\">https://doi.org/10.1109/ISIT57864.2024.10619378</a>","short":"A.R. Esposito, M. Gastpar, I. Issa, in:, Proceedings of the 2024 IEEE International Symposium on Information Theory , Institute of Electrical and Electronics Engineers, 2024, pp. 2110–2115.","mla":"Esposito, Amedeo Roberto, et al. “Variational Characterizations of Sibson’s α-Mutual Information.” <i>Proceedings of the 2024 IEEE International Symposium on Information Theory </i>, Institute of Electrical and Electronics Engineers, 2024, pp. 2110–15, doi:<a href=\"https://doi.org/10.1109/ISIT57864.2024.10619378\">10.1109/ISIT57864.2024.10619378</a>."},"title":"Variational characterizations of Sibson's α-mutual information","publication_identifier":{"issn":["2157-8095"],"isbn":["9798350382846"]},"date_updated":"2024-09-11T06:41:28Z","quality_controlled":"1","scopus_import":"1","month":"08","abstract":[{"lang":"eng","text":"Sibson's α -mutual information has received renewed attention recently in several contexts: concentration of measure under dependence, statistical learning, hypothesis testing, and estimation theory. In this work, we introduce several variational representations of Sibson's α -mutual information: 1) as a supremum over joint distributions of (a combination of) KL divergences; and 2) as a supremum over functions of opportune expected values. Leveraging them, we produce a variety of novel and known results, including a generalization of transportation-cost inequalities and Fano's inequality."}],"type":"conference","language":[{"iso":"eng"}],"oa_version":"None","department":[{"_id":"MaMo"}],"page":"2110-2115","corr_author":"1","status":"public","publisher":"Institute of Electrical and Electronics Engineers","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","publication":"Proceedings of the 2024 IEEE International Symposium on Information Theory ","doi":"10.1109/ISIT57864.2024.10619378","day":"19","year":"2024"}