Call for Papers 22nd International Conference on Web Information Systems Engineering (WISE2021) Oct. 26-29 2021, Melbourne, Australia Overview WISE has established itself as a community aiming at high quality research and offering the ground for advancing efforts in topics related to Web information systems. Previous WISE conferences were held in Hong Kong, China (2000), Kyoto, Japan (2001), Singapore (2002), Roma, Italy (2003), Brisbane, Australia (2004), New York, USA (2005), Wuhan, China (2006), Nancy, France (2007), Auckland, New Zealand (2008), Poznan, Poland (2009), Hong Kong, China (2010), Sydney, Australia (2011), Paphos, Cyprus (2012), Nanjing, China (2013), Thessaloniki, Greece (2014), Miami, USA (2015), Shanghai, China (2016), Puschino, Russia (2017), Dubai, UAE (2018), Hong Kong (2019), and Amsterdam and Leiden, Netherlands (2020). Objectives We invite submissions of papers for the main conference proceedings of WISE2021. All papers will be reviewed in a double-blind process and accepted papers will be presented at the conference. Topics of interest include but not limited to: - Web-scale Distributed and Cloud Computing - Recommender Systems - Deep/Hidden Web - Clickstream Analytics - Rich Web UI and HCI - Semantic Web - Machine Learning for the Web - Linked Open Data - Human Factors and Social Issues - Web Big Data Techniques and Mining - Social Web Models and Analysis - Web Agents and Web Intelligence - Web Data Models - Web Information Retrieval and Text Analytics - Web Metrics and Performance - Web Mining and Web Warehousing - Web Security and Trust Management - Web-based Business Processes and Web Services - Web Tools and Visualization - Data Science and AI technology - Web-based Applications (e.g., Auction and Negotiation, e-Commerce, e-Government, e-Learning, etc.) Paper Submission Guidelines Papers should be submitted in PDF format. The results described must be unpublished and must not be under review elsewhere. Submissions must conform to Springer's LNCS format and should not exceed 15 pages, including all text, figures, references, and appendices. Submissions not conforming to the LNCS format, exceeding 15 pages, or being obviously out of the scope of the conference, will be rejected without review. Information about the Springer LNCS format can be found at http://www.springer.de/comp/lncs/authors.html. Three to five keywords characterizing the paper should be indicated at the end of the abstract. Important Dates Abstract Submission Deadline: June 10, 2021 Full Paper Submission Deadline: June 17, 2021 Acceptance/reject notification: July 30, 2021 Camera Ready Submission: August 31, 2021 Policies Dual Submission It is not appropriate to submit papers that are identical (or substantially similar) to versions that have been previously published, accepted for publication, or submitted in parallel to other conferences or journals. Such submissions violate our dual submission policy, and the organizers have the right to reject such submissions, or to remove them from the proceedings. Changes of title/abstract/authorship Authors should include a full title for their paper, as well as a complete abstract by the abstract submission deadline. Submission titles should not be modified after the abstract submission deadline, and abstracts should not be modified by more than 50% after the abstract submission deadline. Submissions violating these rules may be deleted after the paper submission deadline without reviewing. The author list at the submission deadline will be considered final, and no changes in authorship will be permitted for accepted papers. Double-blind Review All submitted papers MUST be anonymous. WISE 2021 is following the double-blind peer review principle. That is, the authors do not know who reviews their paper and the PC members do not know who the authors of a given paper. Thus, the submitted document should not include the author information and should not include citations or discussion of related work that would make the authorship apparent. Reviewing Criteria Accepted papers must contain significant novel results. Results can be either theoretical or empirical. Results will be judged on the degree to which they have been objectively established and/or their potential for scientific and technological impact. Reproducibility of results and easy availability of code will be taken into account in the decision-making process. Publication Accepted papers will be presented at WISE 2021 and published in the conference proceedings, which is published in the Springer Lecture Notes in Computer Science (LNCS). Authors elected best papers from the conference will be invited to submit an expanded version for publication in the WWW Journal and Data Science and Engineering, Springer.