International conference on web information systems engineering (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). WISE 2021 will be held in Melbourne, Australia, 26-29, 2021. 
We invite submissions of papers for the main conference proceedings of WISE 2021. 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.)

Important Dates:
Abstract Submission Deadline: June 24, 2021
Full Paper Submission Deadline: July 1, 2021