Dear Colleagues, Please mark your calendars: the fifth ACM SIGIR Conference on Human Information Interaction and Retrieval (CHIIR) (pronounced “cheer”) will take place in Vancouver, British Columbia, Canada on 14–18 March, 2020. ACM CHIIR 2020 invites submissions focused on user-centered approaches to the design and evaluation of systems for information access, retrieval, and use. Papers may explore improvements to existing systems and interfaces, propose novel theories, models, and systems, or focus on understanding individual and group interactions with information and information systems. As a multi-disciplinary research meeting, we welcome submissions using a wide range of quantitative and qualitative research methods. Topics covered include but are not limited to: -Information seeking, including task-based and exploratory studies -Search interfaces, including those for specialized tasks, populations and domains -User-centered design approaches to humans interacting with information and systems -Interaction techniques for information retrieval and discovery -Online information seeking, including log analysis of search and browsing -Modeling and simulation of information interaction -Information use, including measures of use as well as broader sense-making -Field and case studies relevant to understanding prerequisites for information searching, design and access -User-centered evaluation methods and measures, including measures of user experience and performance, experiment and search task design, eye-tracking and neuro-physiological approaches, data analysis methods, and usability -Human interaction and experience with conversational information systems -Context-aware and personalized search, including design, contextual features and analysis of information interaction -Information visualization and visual analytics, including search result presentation -Collaborative information seeking and social search, including social utility and network analysis for information interaction -Conversational search and other types of stateful and multi-turn interactions between users and search applications -Insights and analyses related to human experiences and usage trends with recommendation technologies -Information interaction and seeking with mobile devices and services ACM CHIIR operates under the ACM Conference Code of Conduct. Please note the following submission deadlines October 1, 2019 Workshop and Tutorial proposals due October 15, 2019 Full papers and Perspectives papers due October 29, 2019 Short papers, Demos and Doctoral Consortium proposals due October 23, 2019 Notifications of acceptance for Workshops and Tutorials December 10, 2019 Notifications of acceptance for all other submission types Submission Requirements can be found on the conference website: https://sigir.org/chiir2020/calls.html The poster of this call is available at: http://sigir.org/chiir2020/cfp.pdf The submission system will open in September 2019. Please stay tuned for further announcements and details. Questions? Please send an email to chiir2020conf@gmail.com. CHIIR Organizing Committee chiir2020program@gmail.com --- ACM SIGIR Conference on Human Information Interaction & Retrieval (CHIIR 2020) Program Co-Chairs Orland Hoeber, University of Regina Ioannis Arapakis, Telefonica I+D Irene Lopatovska, Pratt Institute Conference website: http://sigir.org/chiir2020/ Call for papers: http://sigir.org/chiir2020/calls.html Important deadlines: Oct 1, 15, and 29 Oct 1 (workshop and tutorial proposals) Oct 15 (full and perspective papers) Oct 29 (short papers, demos, and doctoral consortium proposals)