El. knyga: Web Information Systems Engineering - WISE 2020: 21st International Conference, Amsterdam, The Netherlands, October 20-24, 2020, Proceedings, Part II

Information Extraction.- TaskGenie: Crowd-powered Generation of Struggling Search Tasks.- Search Engine Similarity Analysis: A Combined Content and Rankings Approach.- Evaluating Similarity Measures for Dataset Search.- Towards Efficient Retrieval of Top-$k$ Entities in Systems of Engagement.- A Compare-Aggregate Model with External Knowledge for Query-focused Summarization.- An Active Learning Based Hybrid Neural Network for Joint Information Extraction.- ABLA: an algorithm for repairing structure-based locators through attribute annotations.- Text Mining.- Automatic action extraction for short text conversation using unsupervised learning.- Topic Analysis by Exploring Headline Information.- A Text Mining Approach to Extract and Rank Innovation Insights from Research Projects.- Automatic Complex Word Identification Using Implicit Feedback From User Copy Operations.- A Densely Connected Encoder Stack Approach for Multi-type Legal Machine Reading Comprehension.- Security and Privacy.- Privacy-Preserving Data Generation and Sharing Using Identification Sanitizer.- Robust Blockchain-based Cross-platform Audio Copyright Protection System Using Content-based Fingerprint.- Fragmentation in Outsourced Data Storage.- A Graph Data Privacy-Preserving Method based on Generative Adversarial Networks.- Channel Correlation Based Robust Audio Watermarking Mechanism For Stereo Signals.- Adaptive Online Learning for Vulnerability Exploitation Time Prediction.- Recommender Systems.- Double-Wing Mixture of Experts for Streaming Recommendations.- Modelling Local and Global Dependencies for Next-item Recommendations.- Why-Not Questions & Explanations for Collaborative Filtering.- Learning from Multiple Graphs of User and Book Interactions for Campus Book Recommendation.- A clustering-based collaborative filtering recommendation algorithm via deep learning user side information.- Path-Based Academic Paper Recommendation.- Database System and Workflow.- A Slice-Based Method to Speed Up Join View Maintenance for Transactions.- A Chunk-Based Hash Table Caching Method for In-Memory Hash Joins.- An Asynchronous View Maintenance Approach Based on IO Sharing.- AQapprox: Aggregation Queries Approximation with Distributionaware Online Sampling.- LogRank+: A Novel Approach to Support Business Process Event Log Sampling.- ProvONE+: A Provenance Model for Scientific Workflows.- Data Mining and Applications.- Fair Outlier Detection.- A new effective and efficient measure for outlying aspect mining.- Time Series Data Cleaning Based on Dynamic Speed Constraints.- Predicting MOOCs Dropout with A Deep Model.- RFRSF: Employee Turnover Prediction based on Random Forests and Survival Analysis.- A Deep Sequence-to-Sequence Method for Aircraft Landing Speed Prediction based on QAR Data.- Fine-grained Multi-label Sexism Classification using Semi-supervised Learning.- aDFR: An Attention-based Deep Learning Model for Flight Ranking.- Dealing With Ratio Metrics in A/B Testing at the Presence of Intra-User Correlation and Segments.- Risk Monitoring Services of Discharged SARS-CoV-2 Patients.- UAVFog-assisted Data-driven Disaster Response: Architecture, Use Case, and Challenges.