A Two- Systems Perspective for Computational Thinking -- Detection of Semantically Equivalent Question Pairs -- Concentration Level Prediction System for the Students based on Physiological measure using the EEG device -- A Correlation Analysis between Cognitive Process and Knowledge Dimension in Software Engineering by using the Revised Bloom's Taxonomy -- A Study on Comparative Analysis of the Effect of Applying DropOut and Drop Connect to Deep Neural Network -- HHAR-net: Hierarchical Human Activity Recognition using Neural Networks -- Analysis of Streaming Information using Subscriber-Publisher Architecture -- Fraudulent Practices in Dispensing Units and Remedies -- Biomedical Signal Processing and Complex Analysis -- Digital Processing of Blood Image by Applying Two-Dimensional Haar Wavelets -- Development of the Method, Algorithm and Software of a Modern Non-Invasive Biopotential Meter System -- Deception Detecion using a Multichannel Custom-Design EEG System and Multiple Variants of Neural Network -- A Study on the Possibility of Measuring the Non-Contact Galvanic Skin Response based on near-infrared Imaging -- EEG Motor Classification using Multi-band Signal and Common Spatial Filter -- Segmentation of Prostate in MRI Images using Depth Separable Convolution Operations -- Bone Age Assessment for Lower Age Groups using Triplet Network in Small Data Set of Hand X-Rays -- A Development of Enhanced Contactless Bio Signal Estimation Algorithm and System -- Stress Detection from Different Environments for VIP using EEG Signals and Machine Learning Algorithms -- Natural Language, Speech, Voice and Study -- Analysis of Emotional Content in Indian Political Speeches -- A Bengali Voice-Controlled AI Robot for the Physically Challenged -- How to Enhance the User Experience of Language Acquisition in the Mobile Environment: A Case Study of Amkigorae (암기고래), a Vocabulary Acquisition Mobile Application -- Screening trauma through CNN-based voice emotion classification -- Interchanging the Mode of Display between Desktop and Immersive Headset for Effective and Usable On-line Learning -- Verification of frequently used Korean handwritten characters through artificial intelligence -- Study of Sign Language Recognition Using Wearable Sensors -- Automated Grading of Essays: A Review -- Voice attacks to AI Voice Assistant -- Skills Gap is a Reflection of What We Value: A Reinforcement Learning Interactive Conceptual Skill Development Framework for Indian University -- PRERONA: Mental Health Bengali Chatbot For Digital Counselling. -Speech Based Access of Kisan Information System in Telugu Language -- Voice Assistant for Covid-19 -- Combining Natural Language Processing and Blockchain for Smart Contract Generation in the accounting and legal field -- Algorithm and Related Applications -- Fault Identification of Multi-Level Gear Defects using Adaptive Noise Control and a Genetic Algorithm -- Applying Multiple Models to Improve the Accuracy of Prediction Results in Neural Networks -- OST-HMDfor safety training -- One-dimensional mathematical model and a numerical solution accounting sedimentation of clay particles in process of oil filtering in porous medium -- A Novel Diminish Smooth L1 Loss Model with Generative Adversarial Network -- Interactive Machine learning approach for staff selection using Genetic Algorithm -- Software of linear and geometrically non-linear problems solution under spatial loading of rods of complex configuration -- Mathematical modeling of Pascal triangular fractal patterns and its practical application -- Crowd Sourcing and Information Analysis -- An NLP and LSTM based Stock Prediction and Recommender System for KOSDAQ and KOSPI -- The Commodity Ecology Mobile (CEM) Platform Illustrates Ten Design Points for Achieving a Deep Deliberation in Sustainable Development Goal #12 -- The Design and Development of School Visitor Information Management System: Malaysia Perspective Check -- The Impact of the measurement Process in Intelligent System of Data Gathering Strategies -- Detecting Arson and Stone Pelting in Extreme Violence: A Deep Learning Based Identification Approach -- A Scientometric Review of Digital Economy for Intelligent Human-Computer Interaction Research -- eGovernance for citizen awareness and corruption mitigation -- Towards a responsible intelligent HCI for journalism: A systematic review of digital journalism -- A Systematic Review of Social Media for Intelligent Human-Computer Interaction Research: Why Smart Social Media is Not Enough.

The two-volume set LNCS 12615 + 12616 constitutes the refereed proceedings of the 12th International Conference on Intelligent Human Computer Interaction, IHCI 2020, which took place in Daegu, South Korea, during November 24-26, 2020. The 75 full and 18 short papers included in these proceedings were carefully reviewed and selected from a total of 185 submissions. The papers were organized in topical sections named: cognitive modeling and system; biomedical signal processing and complex problem solving; natural language, speech, voice and study; algorithm and related applications; crowd sourcing and information analysis; intelligent usability and test system; assistive living; image processing and deep learning; and human-centered AI applications.