Special Issue on Intelligent Multimedia Interactivity The explosive growth of digital photos and videos, the prevalence of capture devices, and the advent of media-sharing services on the Internet have drastically increased the volume of community-contributed multimedia resources. Billions of photos, videos, and music clips shared on websites bring profound social impacts on the human society and pose new challenges for analyzing such large-scale multimedia data. On the other hand, we have witnessed the power of human efforts in the Web 2.0 era in providing quality-controlled interactions such as annotations, ratings, question answering, and so on. By incorporating those human efforts into computational process of multimedia, it is promising to solve conventional problems in the multimedia domain such as tagging or annotation, interactive search, user-targeted services, as well as personalized recommendation. Recently, many research efforts are dedicated to developing new technologies, pipelines, tools, or even games to leverage user interactions for multimedia analysis. This trend of exploring human knowledge for computing is anticipated to spread across a still wider range of research communities. To address this trend and other outstanding challenges, submissions are invited in the following areas (but not limited to): - Active multimedia annotation and tagging - Interactive image, music, and video search - Relevance feedback for multimedia retrieval - Multimedia visualization with user interaction - Personalized multimedia analysis such as recommendation, search, advertising, etc. - Active learning for multimedia content analysis - Human computer interaction for multimedia analysis - Novel interaction (accelerometer, touch screen, haptics, etc.) - User interfaces for interactive multimedia systems - Natural interaction for gaming, exercises, etc. Important Dates: Submission of full papers October 1st, 2010 Notification to authors February 1st, 2011 Submission of camera ready April 1st, 2011 Publication date May, 2011 (tentative) Guest Editors: Ling Shao, The University of Sheffield, United Kingdom (ling.shao@sheffield.ac.uk) Qi Tian, University of Texas at San Antonio, USA (qitian@cs.utsa.edu) Alberto del Bimbo, The University of Florence, Italy (delbimbo@dsi.unifi.it) Changsheng Xu, Chinese Academy of Sciences, China (csxu@nlpr.ia.ac.cn) Submission Procedure: Prospective authors should visit http://www.elsevier.org/wps/find/journaldescription.cws_home/505619/authorinstructions for information on paper submission. Manuscripts should be submitted using the Elsevier Editorial System at http://ees.elsevier.com/patrec/ and the article type “IMI” should be selected. All submissions will be peer reviewed according to the standard PRL process. Pattern Recognition Letters