Big Data Analytics and Knowledge Discovery

Name: Big Data Analytics and Knowledge Discovery | 25th International Conference, DaWaK 2023, Penang, Malaysia, August 28-30, 2023, Proceedings
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25th International Conference, DaWaK 2023, Penang, Malaysia, August 28-30, 2023, Proceedings

Robert Wrembel Johann Gamper Gabriele Kotsis A. Min Tjoa Ismail Khalil(Herausgeber*in)

Springer (Verlag)

Erschienen am 9. August 2023

XVI, 400 Seiten

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978-3-031-39831-5 (ISBN)

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Inhalt

Intro
Preface
Organization
From an Interpretable Predictive Model to a Model Agnostic Explanation (Abstract of Keynote Talk)
Contents
Data Quality
Using Ontologies as Context for Data Warehouse Quality Assessment
1 Introduction
2 Related Work
3 Preliminaries
3.1 Running Example
3.2 Data Warehouse Formal Specification
3.3 Context Formal Specification
4 Data Warehouse to Ontology Mapping
5 Context-Based Data Quality Rules
6 Experimentation
6.1 Implementation
6.2 Validation
7 Conclusions and Future Work
References
Preventing Technical Errors in Data Lake Analyses with Type Theory
1 Introduction
2 Related Works
3 Type-Theoretical Framework
4 Conclusion
References
EXOS: Explaining Outliers in Data Streams
1 Introduction
2 Related Work
3 Preliminaries
4 The Proposed Algorithm: EXOS
4.1 Estimator
4.2 Temporal Neighbor Clustering
4.3 Outlying Attribute Generators
5 Evaluation
5.1 Experimental Setup
5.2 Results and Analysis
6 Conclusions
References
Motif Alignment for Time Series Data Augmentation
1 Introduction
2 Preliminaries
2.1 Matrix Profile
2.2 Pan-Matrix Profile
2.3 DTW Alignment for Time Series Data Augmentation
3 Proposed Method
3.1 Motif Mapping
3.2 Time Series Augmentation
4 Experimental Evaluation
4.1 Setup
4.2 Aligning Time Series Using MotifDTW
4.3 Performance Gain
5 Conclusion
References
State-Transition-Aware Anomaly Detection Under Concept Drifts
1 Introduction
2 Related Works
3 Problem Definition
3.1 Terminology
3.2 Problem Statement
4 State-Transition-Aware Anomaly Detection
4.1 Reconstruction and Latent Representation Learning
4.2 Drift Detection in the Latent Space
4.3 State Transition Model
5 Experiment
5.1 Experiment Setup
5.2 Performance
6 Conclusion
References
Anomaly Detection in Financial Transactions Via Graph-Based Feature Aggregations
1 Introduction
2 Related Work
2.1 Graph Embedding
2.2 Anomaly Detection
3 Problem Formalization
4 Proposed Method
4.1 PFA: Proximal Feature Aggregation
4.2 AFA: Anomaly Feature Aggregation
5 Experiment
5.1 Experimental Setup
5.2 Effectiveness Evaluation
5.3 Scalability Evaluation
6 Conclusion
References
The Synergies of Context and Data Aging in Recommendations
1 Introduction
2 ALBA: Adding Aging to LookBack Apriori
3 Context Modeling
4 Evaluation
4.1 Contexts
4.2 Methodology
4.3 Fitbit Validation
4.4 Auditel Validation
5 Conclusions and Future Work
References
Advanced Analytics and Pattern Discovery
Hypergraph Embedding Based on Random Walk with Adjusted Transition Probabilities
1 Introduction
2 Related Work
3 Preliminaries
3.1 Notation
3.2 Hypergraph Projection
3.3 Random Walk and Stationary Distribution
3.4 Skip-Gram
4 Proposed Method
4.1 Random Walk
5 Experiment
5.1 Transition Probabilities in Steady State
5.2 Node Label Estimation
5.3 Parameter Dependence of F1 Score
6 Conclusion
References
Contextual Shift Method (CSM)
1 Introduction
2 Contextual Shifts
3 Contextual Shift Method
4 Experiments
5 Conclusion
References
Utility-Oriented Gradual Itemsets Mining Using High Utility Itemsets Mining
1 Introduction
2 Preliminary Definitions
3 High Utility Gradual Itemsets Mining
3.1 Database Encoding
3.2 High Utility Gradual Itemsets Extraction
4 Experimental Study
5 Conclusion
References
Discovery of Contrast Itemset with Statistical Background Between Two Continuous Variables
1 Introduction
2 Contrast ItemSB
3 Experimental Results
4 Conclusions
References
DBGAN: A Data Balancing Generative Adversarial Network for Mobility Pattern Recognition
1 Introduction
2 Related Work
3 Background
3.1 Reproducing Kernel Hilbert Space Embeddings
3.2 Attention Mechanism
3.3 Generative Adversarial Network
4 DBGAN Mobility Pattern Classification Model
4.1 Attributes of Travel Trajectories Utilized for Classification
4.2 Sequences to Images with Kernel Embedding
4.3 Classification Using Self Attention-Based Generative Adversarial Network
5 Evaluation
6 Conclusion
References
Bitwise Vertical Mining of Minimal Rare Patterns
1 Introduction
2 Background and Related Works
3 Our RP-VIPER Algorithm
4 Evaluation
5 Conclusions
References
Inter-item Time Intervals in Sequential Patterns
1 Introduction
2 Related Work
3 Representing Time in Sequences
3.1 Preliminaries
3.2 Integrating Intervals in Sequences
4 Experiments
4.1 Datasets and Models
4.2 Results
5 Conclusion
References
Fair-DSP: Fair Dynamic Survival Prediction on Longitudinal Electronic Health Record
1 Introduction
2 Related Work
3 Methodology
3.1 Fair Dynamic Survival Model
3.2 Individual Fairness
3.3 Group Fairness
4 Experiments
4.1 Quantitative Analysis
4.2 Sensitivity Study
5 Conclusions
References
Machine Learning
DAT@Z21: A Comprehensive Multimodal Dataset for Rumor Classification in Microblogs
1 Introduction
2 Related Works
2.1 Fake Health News Datasets
2.2 Fake News Datasets
3 Data Collection
3.1 News Articles and Ground Truth Collection
3.2 Preparing the Tweets Collection
3.3 Tweets Collection
4 Rumor Classification Using DAT@Z21
4.1 Baselines
4.2 Experiment Settings
4.3 Experimental Results
5 Conclusion and Perspectives
References
Dealing with Data Bias in Classification: Can Generated Data Ensure Representation and Fairness?
1 Introduction
2 Related Work
3 Measuring Discrimination
4 Problem Formulation
5 Methodology
6 Evaluation
6.1 Comparing Pre-processors
6.2 Investigating the Fairness-Agnostic Property
7 Conclusion
8 Discussion and Future Work
A Proof of Time Complexity
References
Random Hypergraph Model Preserving Two-Mode Clustering Coefficient
1 Introduction
2 Preliminaries
3 Extending the Hyper dK-Series to the Case of dv = 2.5+
4 Experiments
5 Conclusion
References
A Non-overlapping Community Detection Approach Based on -Structural Similarity
1 Introduction
2 Preliminaries
3 A Hierarchical Clustering Approach Based on -Structural Similarity
4 Experiments
5 Conclusion and Future Work
A Appendix a
B Appendix B
References
Improving Stochastic Gradient Descent Initializing with Data Summarization
1 Introduction
2 Definitions
2.1 Input Data Set
2.2 LR Model
3 System and Algorithms
3.1 Gamma Summarization ()
3.2 Mini-batch SGD
3.3 Mini-batch SGD Initialization Using Gamma
4 Experiments
4.1 Experimental Setup
4.2 Experimental Results
5 Related Work
6 Conclusions
References
Feature Analysis of Regional Behavioral Facilitation Information Based on Source Location and Target People in Disaster
1 Introduction
2 Related Work
3 Basic Concept of RBF Tweet Classification
3.1 Extraction of BF Tweets
3.2 RBF Tweet Extraction and Classification
4 Analysis of RBF Tweets
4.1 Training and Test Data
4.2 Research Question
4.3 Results and Discussion of Research Questions
5 Conclusion
References
Exploring Dialog Act Recognition in Open Domain Conversational Agents
1 Introduction
2 Related Works
3 Proposed Dialog Act Taxonomy
3.1 Data Sources
4 Proposed Dialog Act Classifier
4.1 Experimental Setup
4.2 Performance Evaluation
4.3 Generalizability of Model
5 Conclusion
References
UniCausal: Unified Benchmark and Repository for Causal Text Mining
1 Introduction
2 Related Work
2.1 Tasks
2.2 Datasets
2.3 Other Large Causal Resources
3 Methodology
3.1 Creation of UniCausal
3.2 Baseline Model
4 Experiments
4.1 Baseline Performance
4.2 Impact of Datasets
4.3 Adding CauseNet to Investigate the Importance of Linguistic Variation in Examples
5 Conclusion
References
Deep Learning
Accounting for Imputation Uncertainty During Neural Network Training
1 Introduction
2 Related Works
3 Contributions
3.1 Single-Hotpatching
3.2 Multiple-Hotpatching
4 Experiments
4.1 Experimental Protocol
4.2 Results
5 Discussion and Conclusion
References
Supervised Hybrid Model for Rumor Classification: A Comparative Study of Machine and Deep Learning Approaches
1 Introduction
2 Related Work
3 Datasets and Preprocessing
4 Implementation
4.1 Traditional ML Approaches
4.2 DL Approaches
4.3 The Ensemble Stack ML Model
4.4 The Hybrid ML-DL Model
5 Results and Analysis
6 Conclusion and Future Work
References
Attention-Based Counterfactual Explanation for Multivariate Time Series
1 Introduction
2 Related Work
3 Methodology
3.1 Notation
3.2 Proposed Method
4 Experiments
4.1 Datasets
4.2 Baseline Methods
4.3 Experimental Result
5 Conclusion
References
DRUM: A Real Time Detector for Regime Shifts in Data Streams via an Unsupervised, Multivariate Framework
1 Introduction
2 Related Work
3 DRUM
4 Evaluation
5 Conclusion
References
Hierarchical Graph Neural Network with Cross-Attention for Cross-Device User Matching
1 Introduction
2 Related Work
3 Hierarchical Graph Neural Network
3.1 Problem Definition
3.2 Fine Level
3.3 Coarse Level
3.4 Cross Attention
4 Experiment
4.1 Training Details
4.2 Results
5 Conclusions
References
Data Management
Unified Views for Querying Heterogeneous Multi-model Polystores
1 Introduction
2 Motivating Example
3 Related Work
4 The Proposed Framework
5 Experiments
6 Conclusion
References
RODD: Robust Outlier Detection in Data Cubes
1 Introduction
2 Related Work
3 A Framework for Outlier Detection in Data Cubes
4 Robust Estimation of Data Cube Cells
5 Simulation Study - Experimental Setup
6 Simulation Study - Results
7 Application to Real Data
8 Conclusion
References
Data-driven and On-Demand Conceptual Modeling
1 Introduction
2 Motivation and Problem Definition
2.1 Modern Data Landscapes
2.2 Motivating Example
2.3 Related Work
3 Data Virtual Machines
3.1 ER and Data Virtual Machines
3.2 DVM: Theoretical Framework
3.3 Queries over DVMs
4 Mapping of a Relational Database to a DVM Schema
4.1 Step 1: Mapping Construction Based on the Database Schema
4.2 Step 2: Mapping Construction Based on User Queries
4.3 Discussion
5 Use Case Study
6 Conclusions
References
FLOWER: Viewing Data Flow in ER Diagrams
1 Introduction
2 Our Proposed Hybrid Diagram
3 Capturing Data Flow with Generated ER Diagrams
3.1 Extending ER Diagram Notation
3.2 Entities Beyond Databases
3.3 Equivalent Operations
3.4 Data Flow Analysis
3.5 FLOWER Diagram
3.6 Strengths and Limitations of Our Approach
4 Validation
4.1 Hardware and Software
4.2 Input Data
4.3 Parsed and Inferred Metadata
4.4 Results: Diagram Output
4.5 Efficiency Considerations
5 Related Work
6 Conclusions
References
Supporting Big Healthcare Data Management and Analytics: The Cloud-Based QFLS Framework
1 Introduction
2 QFLS at Work!
3 Experimental Assessment and Analysis
4 Conclusions and Future Work
References
Beyond Traditional Flare Forecasting: A Data-driven Labeling Approach for High-fidelity Predictions
1 Introduction
2 Methodology
2.1 Relative Increase of Background X-ray Flux
2.2 Data-driven Labeling for Solar Flares
3 Case Study: Flare Prediction with Data-Drive Labels
3.1 Data Collection
3.2 Classification Method and Evaluation
4 Conclusion and Future Work
References
HKS: Efficient Data Partitioning for Stateful Streaming
1 Introduction
2 Related Work and Preliminaries
3 Frequency-aware Partitioner
3.1 Predictive Key Analyzer
3.2 Data Partitioner
4 Evaluation
4.1 Performance Metrics
4.2 Results
5 Conclusion
References
A Fine-Grained Structural Partitioning Approach to Graph Compression
1 Introduction
2 Related Work
3 Proposed Approach
3.1 Preliminaries
3.2 Principle
3.3 Algorithm
4 Experimental Results
References
Author Index

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