Retraction Note to: A joint model for analyzing topic and sentiment dynamics from large-scale online news

World Wide Web (2019) 22:417 https://doi.org/10.1007/s11280-018-0650-6 RETRACTION NOTE Retraction Note to: A joint model for analyzing topic and sentiment dynamics from large-scale online news Peng Liu 1 1 & Jon Atle Gulla & Lemei Zhang 1 Published online: 1 December 2018 # Springer Science+Business Media, LLC, part of Springer Nature 2018 Retraction Note to: World Wide Web (2018) 21:1117–1139 https://doi.org/10.1007/s11280-017-0474-9 The Editors-in-Chief have retracted “A joint model for analyzing topic and sentiment dynamics from large-scale online news” [1] because the article shows significant overlap with a previously published article [2] without proper citation. Peng Liu, Jon Atle Gulla, and Lemei Zhang do not agree to this retraction. [1] Retracted Article: Liu, P., Gulla, J.A. & Zhang, L. A joint model for analyzing topic and sentiment dynamics from large-scale online news, World Wide Web (2018) 21: 1117. https://doi.org/10.1007/s11280-017-0474-9 [2] Duplicated Article: He, Y., Lin, C., Gao, W., and Wong, K.-F. 2013. Dynamic joint-sentimenttopic model. ACM Trans. Intell. Syst. Technol. 5, 1, Article 6 (December 2013), 21 pages. https://doi.org/10.1145/2542182.2542188 The online version of the original article can be found at https://doi.org/10.1007/s11280-017-0474-9 * Peng Liu Jon Atle Gulla Lemei Zhang 1 Department of Computer Science, Norwegian University of Science and Technology, Trondheim, Norway  (...truncated)