Recommender and Decision Support Systems -- Enhancing Peoples' Training Experience: A Gym Workout Planner based on Soft Ontologies -- Music Interpretation Support System - Integration Support Interface of Impressions from Listening to Music and Reading its Score -- A Model of Decision Makings Requiring Predictions -- Decision Support System with Institutional Research: A Student-Centered Enrollment Advising System -- Early Findings from a Large-scale User Study of CHESTNUT: Validations and Implications -- CHESTNUT: Improve Serendipity in Movie Recommendation by an Information Theory-based Collaborative Filtering Approach -- Is This the Right Time to Post My Task? An Empirical Analysis on a Task Similarity Arrival in TopCoder -- User-Centered Design of a Process-Recommender System for Fiber Reinforced Polymer Production -- Information, Communication, Relationality and Learning -- A Long-term Evaluation of Social Robot Impression -- Services Task Model Based Dialogue Scenarios Design Towards L2 WTC Support Oriented Dialogues Authoring Tool -- Educational Environment of Video System using Superimposing Symbols to Support for Skill Training -- Appeal of Inconspicuous Body Movements during Spatial Invasion: Frequency Analysis of Movements -- How to Emote for Consensus Building in Virtual Communication -- Learning Support for Historical Interpretation Using Semantically Enhanced Historical Cartoons -- "Two Way or Go Away": Development of DPP(Digital Presentation Platform) which supports to make a College Teachers get Two-way Communication Classroom as a Facilitators -- A Comparison of Cartoon Portrait Generators Based on Generative Adversarial Networks -- A Proposal of Estimating Method for Agreement in Face-to-Face Communication -- System Design of Community Toward Wellbeing -- Multimodal Interaction-aware Integrated Platform for CSCL -- The Influence of Human-Computer Sagittal Interaction in Peripersonal Space on Affective Valence Appraisals -- A Validation of Textual Expression about Disaster Information to Induce Evacuation -- Supporting Work, Collaboration and Creativity -- Assessing Current HMI Designs and Exploring AI Potential for Future Air-Defence System Development -- How to Design a Research Data Management Platform? Technical, Organizational and Individual Perspectives and Their Relations -- Interaction by Taking a Picture for Smartphone Generation -- Proposal and Evaluation of Contribution Value Model for Creation Support System -- Analysis of Human Factor in Air Traffic Control Unsafe Events Based on Improved DECIDE Model -- Expanding and Embedding a High-level Gesture Vocabulary for the Digital and Augmented Musical Instruments -- Visual Compiler: Towards Translating Digital UI Design Draft to Front-end Code Automatically -- Research on Design of Tai-chong and Yong-quan Acupoints Physiotherapy Apparatus Based on Traditional Chinese Medicine Theory -- Developing an AR Remote Collaboration System with Semantic Virtual Labels and a 3D pointer -- Will the Process of Creation Impact the Viewer's Appraisal of the Creativeness of Artificial Intelligence Artworks? -- Information in Intelligent Systems and environments -- Experimental Study on Improvement of Sign Language Motion Classification Performance using Pre-trained Network Models -- An Intermediate Mapping Layer for Interactive Sequencing -- Drowsy Bather Detection Using a Triaxial Accelerometer -- Development of a Prototyping Support Tool for a Data Utilization Skill-Development Program: Development and Evaluation of a Camera Sensor Pod with an AI-Based People-Counting Function -- Data Paradigm Shift in Cross-Media IoT System -- Optimizing Combinations of Teaching Image Data for Detecting Objects in Images -- Optimal Route Search for Maritime Navigation Vessels Based on Multi-Objective Genetic Algorithm Optimal Route Search Based on Multi-Objective Genetic Algorithm for Maritime Navigation Vessels -- The Integration of Web-based and Mobile-based Participatory Sensing InterfacesApply to the Identification and Assessment of Contextual Features in the City -- Home Care System for Supporting Caregivers and Elderly Care Receivers -- Development of Multi-DoF Robot Arm with Expansion and Contraction Mechanism for Portability.

This two-volume set LNCS 12184 and 12185 constitutes the refereed proceedings of the Thematic Area on Human Interface and the Management of Information, HIMI 2020, held as part of HCI International 2020 in Copenhagen, Denmark.* HCII 2020 received a total of 6326 submissions, of which 1439 papers and 238 posters were accepted for publication after a careful reviewing process. The 72 papers presented in the two volumes were organized in the following topical sections: Part I: information presentation and visualization; service design and management; and information in VR and AR. Part II: recommender and decision support systems; information, communication, relationality and learning; supporting work, collaboration and creativity; and information in intelligent systems and environments. *The conference was held virtually due to the COVID-19 pandemic.