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Advances in databases and information systems : 10th East European Conference, ADBIS 2006 : Thessaloniki, Greece, September 2006 : proceedings / Yannis Manolopoulos, Jaroslav Pokorny, Timos Sellis (Eds.)
| Advances in databases and information systems : 10th East European Conference, ADBIS 2006 : Thessaloniki, Greece, September 2006 : proceedings / Yannis Manolopoulos, Jaroslav Pokorny, Timos Sellis (Eds.) |
| Autore | East European Conference, ADBIS 2006 : <10; : 2006; : Thessaloniki> |
| Pubbl/distr/stampa | Berlin[etc.] : Springer, copyr. 2006 |
| Descrizione fisica | XV, 448 p. : ill. ; 24 cm |
| Disciplina | 005.74 |
| Collana | Lecture notes in computer science |
| Soggetto topico | Archivi di dati - Congressi - Thessaloniki - 2006 |
| ISBN | 3-540-37899-5 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNISA-990003073040203316 |
East European Conference, ADBIS 2006 : <10; : 2006; : Thessaloniki>
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| Berlin[etc.] : Springer, copyr. 2006 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
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Advances in Databases and Information Systems : 11th East European Conference, ADBIS 2007 : Varna, Bulgaria, September 29-October 3, 2007 : proceedings / Yannis Ioannidis, Boris Novikov, Boris Rachev (eds.)
| Advances in Databases and Information Systems : 11th East European Conference, ADBIS 2007 : Varna, Bulgaria, September 29-October 3, 2007 : proceedings / Yannis Ioannidis, Boris Novikov, Boris Rachev (eds.) |
| Autore | East European Conference, ADBIS 2007 : <11; : 2007 |
| Pubbl/distr/stampa | Berlin[etc.] : Springer, 2007 |
| Descrizione fisica | XIII, 375 p. : ill. ; 24 cm |
| Disciplina | 005.74 |
| Collana | Lecture notes in computer science |
| Soggetto topico | Archivi di dati - Congressi - Varna - 2007 |
| ISBN | 978-3-540-75184-7 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNISA-990003097400203316 |
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East European Conference, ADBIS 2007 : <11; : 2007
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| Berlin[etc.] : Springer, 2007 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
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Advances in databases and information systems : 12th east european conference, ADBIS 2008 : Pori, Finland, September 5-9, 2008 : proceedings / Paolo Atzeni, Albertas Caplinskas, Hannu Jaakkola (Eds.)
| Advances in databases and information systems : 12th east european conference, ADBIS 2008 : Pori, Finland, September 5-9, 2008 : proceedings / Paolo Atzeni, Albertas Caplinskas, Hannu Jaakkola (Eds.) |
| Autore | East european conference, ADBIS 2008 : <12.; : 2008 |
| Pubbl/distr/stampa | Berlin [etc.] : Springer, copyr. 2008 |
| Descrizione fisica | XII, 320 p. : ill. ; 24 cm |
| Disciplina | 005.74 |
| Collana | Lecture notes in computer science |
| Soggetto topico | Archivi di dati - Congressi - Pori - 2008 |
| ISBN | 978-3-540-85712-9 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNISA-990003152800203316 |
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East european conference, ADBIS 2008 : <12.; : 2008
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| Berlin [etc.] : Springer, copyr. 2008 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
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Advances in databases and information systems : 13th East European conference, ADBIS 2009 : Riga, Latvia, september 7-10, 2009 : Proceedings / Janis Grundspenkis...[et al.] (Eds.)
| Advances in databases and information systems : 13th East European conference, ADBIS 2009 : Riga, Latvia, september 7-10, 2009 : Proceedings / Janis Grundspenkis...[et al.] (Eds.) |
| Autore | East european conference, ADBIS 2009 : <13.; : 2009 |
| Pubbl/distr/stampa | Berlin [etc.] : Springer, copyr. 2009 |
| Descrizione fisica | XIII, 377 p. : ill. ; 24 cm |
| Disciplina | 005.74 |
| Collana | Lecture notes in computer science |
| Soggetto topico | Archivi di dati - Congressi - Riga - 2009 |
| ISBN | 978-3-64203972-0 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNISA-990003327200203316 |
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East european conference, ADBIS 2009 : <13.; : 2009
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| Berlin [etc.] : Springer, copyr. 2009 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
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Advances in Databases and Information Systems [[electronic resource] ] : 27th European Conference, ADBIS 2023, Barcelona, Spain, September 4–7, 2023, Proceedings / / edited by Alberto Abelló, Panos Vassiliadis, Oscar Romero, Robert Wrembel
| Advances in Databases and Information Systems [[electronic resource] ] : 27th European Conference, ADBIS 2023, Barcelona, Spain, September 4–7, 2023, Proceedings / / edited by Alberto Abelló, Panos Vassiliadis, Oscar Romero, Robert Wrembel |
| Edizione | [1st ed. 2023.] |
| Pubbl/distr/stampa | Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2023 |
| Descrizione fisica | 1 online resource (271 pages) |
| Disciplina | 005.74 |
| Collana | Lecture Notes in Computer Science |
| Soggetto topico |
Database management
Application software Artificial intelligence Data structures (Computer science) Information theory Computer engineering Computer networks Data mining Database Management Computer and Information Systems Applications Artificial Intelligence Data Structures and Information Theory Computer Engineering and Networks Data Mining and Knowledge Discovery |
| ISBN | 3-031-42914-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Keynote Talk and Tutorials -- Knowledge Engineering in the Era of Artificial Intelligence -- Causality, Attribution-Scores and Repairs in Databases -- When operations research meets databases -- Query Processing and Data Exploration -- Using a Key-Value Index-Store for Cross-Model Join Queries Over Heterogeneous Data Sources -- Reconstructing Spatiotemporal Data with C-VAEs -- What Happens when Two Multi-Query Optimization Paradigms Combine -- Skyline-Based Temporal Graph Exploration -- Temporal Graph Processing in Modern Memory Hierarchies -- Data Science and Fairness -- Comparing and Improving Active Learning Uncertainty Measures for Transformer Models -- FARMUR: Fair Adversarial Retraining to Mitigate Unfairness in Robustness -- Exploring Heterogeneous Data Graphs Through their Entity Paths -- Managing Linked Nulls in Property Graphs: Tools to Ensure Consistency and Reduce Redundancy -- Assessment of Data Quality in a Data Lakehouse Through Multi-Granularity Data Profiling -- Data Ingestion Validation through Stable Conditional Metrics with Ranking and Filtering -- An Ontology for Representing and Querying Semantic Trajectories in the Maritime Domain -- Extracting Provenance of Machine Learning Experiment Pipeline Artifacts. . |
| Record Nr. | UNISA-996546849903316 |
| Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2023 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
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Advances in Databases and Information Systems [[electronic resource] ] : 27th European Conference, ADBIS 2023, Barcelona, Spain, September 4–7, 2023, Proceedings / / edited by Alberto Abelló, Panos Vassiliadis, Oscar Romero, Robert Wrembel
| Advances in Databases and Information Systems [[electronic resource] ] : 27th European Conference, ADBIS 2023, Barcelona, Spain, September 4–7, 2023, Proceedings / / edited by Alberto Abelló, Panos Vassiliadis, Oscar Romero, Robert Wrembel |
| Edizione | [1st ed. 2023.] |
| Pubbl/distr/stampa | Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2023 |
| Descrizione fisica | 1 online resource (271 pages) |
| Disciplina | 005.74 |
| Collana | Lecture Notes in Computer Science |
| Soggetto topico |
Database management
Application software Artificial intelligence Data structures (Computer science) Information theory Computer engineering Computer networks Data mining Database Management Computer and Information Systems Applications Artificial Intelligence Data Structures and Information Theory Computer Engineering and Networks Data Mining and Knowledge Discovery |
| ISBN | 3-031-42914-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Keynote Talk and Tutorials -- Knowledge Engineering in the Era of Artificial Intelligence -- Causality, Attribution-Scores and Repairs in Databases -- When operations research meets databases -- Query Processing and Data Exploration -- Using a Key-Value Index-Store for Cross-Model Join Queries Over Heterogeneous Data Sources -- Reconstructing Spatiotemporal Data with C-VAEs -- What Happens when Two Multi-Query Optimization Paradigms Combine -- Skyline-Based Temporal Graph Exploration -- Temporal Graph Processing in Modern Memory Hierarchies -- Data Science and Fairness -- Comparing and Improving Active Learning Uncertainty Measures for Transformer Models -- FARMUR: Fair Adversarial Retraining to Mitigate Unfairness in Robustness -- Exploring Heterogeneous Data Graphs Through their Entity Paths -- Managing Linked Nulls in Property Graphs: Tools to Ensure Consistency and Reduce Redundancy -- Assessment of Data Quality in a Data Lakehouse Through Multi-Granularity Data Profiling -- Data Ingestion Validation through Stable Conditional Metrics with Ranking and Filtering -- An Ontology for Representing and Querying Semantic Trajectories in the Maritime Domain -- Extracting Provenance of Machine Learning Experiment Pipeline Artifacts. . |
| Record Nr. | UNINA-9910742483803321 |
| Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2023 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Advances in databases and information systems : 26th European conference, ADBIS 2022, Turin, Italy, September 5-8, 2022, proceedings / / Silvia Chiusano, Tania Cerquitelli, Robert Wrembel (editors)
| Advances in databases and information systems : 26th European conference, ADBIS 2022, Turin, Italy, September 5-8, 2022, proceedings / / Silvia Chiusano, Tania Cerquitelli, Robert Wrembel (editors) |
| Pubbl/distr/stampa | Cham, Switzerland : , : Springer, , [2022] |
| Descrizione fisica | 1 online resource (419 pages) |
| Disciplina | 005.74 |
| Collana | Lecture notes in computer science |
| Soggetto topico |
Database management
Information technology |
| ISBN | 3-031-15740-0 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Preface -- Organization -- Abstracts of the Keynote Talks -- Toward AI-Powered Data-Driven Education -- Insider Stories: Analyzing Stress, Depression, and Staff Welfare at Major US Companies from Online Reviews -- Tensor Query Processing: Neural Network to speed up Databases and Classical ML! -- Understanding and Rewiring Cities and Societies: A Computational Social Science Perspective -- Contents -- Keynote Talk and Tutorials -- Understanding and Rewiring Cities -- 1 Introduction -- 2 Neighborhoods' Characteristics and Urban Vitality -- 3 How Safety Perception Influences Vitality -- 4 The Interplay of Neighborhoods' Socio-Economic Conditions, Urban Environment, People Behaviors, and Crime -- 5 The Impact of COVID-19 Pandemic on Human Behavior -- 6 Looking Ahead -- References -- AI Approaches in Processing and Using Data in Personalized Medicine -- 1 Introduction -- 2 Different Sources of Patients' Medical Big Data - Collection and Processing -- 3 Emergent Artificial Intelligence Approaches for Supporting Quality Medical Decisions -- 4 Medical Decision Support Systems -- 4.1 Smart Ambient Intelligent Living Environments -- 4.2 Intelligent System for Supporting Cancer Patients -- 5 Conclusion -- References -- Explainable, Interpretable, Trustworthy, Responsible, Ethical, Fair, Verifiable AI... What's Next? -- 1 Introduction -- 2 Explainability -- 3 Interpretability -- 4 The Problem of Bias -- 5 Fairness -- 6 Verification -- 7 Accountability -- 8 Conclusions -- References -- OLAP and NoSQL: Happily Ever After -- 1 Introduction and Motivation -- 2 Schema-on-Read Approaches -- 2.1 Graph OLAP -- 2.2 Approximate OLAP -- 3 Schema-on-Write Approaches -- 3.1 Mono-Model Approaches -- 3.2 Multi-model Approaches -- 4 Conclusion -- References -- What's New in Temporal Databases? -- 1 Introduction -- 2 Query Processing of Primitive Operators.
2.1 Temporal Selection -- 2.2 Temporal Joins -- 3 New Directions in Models and Semantics -- 4 Systems -- 5 Conclusion and Future Directions -- References -- Graph Processing -- An Algebra for Path Manipulation in Graph Databases -- 1 Introduction -- 2 Related Work -- 3 Data Model -- 4 Path Algebra -- 4.1 Operations over Paths -- 4.2 Operations over Sets of Paths -- 4.3 Examples of Queries -- 5 Properties -- 6 Use Cases -- 6.1 Transportation -- 6.2 Proteins -- 7 Discussion -- 7.1 Labels and Repeated Results -- 7.2 Notions of Compatibility -- 7.3 Paths Queries Across Multiple Graphs -- References -- Road Network Graph Representation for Traffic Analysis and Routing -- 1 Introduction -- 2 Related Work -- 3 Road Network Graph Modelling -- 3.1 Primal Graph -- 3.2 Dual Graph -- 4 Generation of Traffic Data -- 5 Traffic Data Integration -- 6 Routing -- 6.1 Managing Road Closures -- 7 Road Network Analysis -- 8 Conclusion -- References -- Parallel Discovery of Top-k Weighted Motifs in Large Graphs -- 1 Introduction -- 2 Related Research -- 3 Background -- 4 The Proposed Approach -- 4.1 Correctness -- 4.2 Extension to 4-Cliques -- 5 Performance Evaluation -- 6 Conclusions -- References -- A Data Quality Framework for Graph-Based Virtual Data Integration Systems -- 1 Introduction -- 2 Related Work -- 3 Preliminaries -- 3.1 Running Example -- 3.2 Formal Background -- 4 Managing Data Quality in Virtual Data Integration -- 4.1 DC Generation and Graph-Based Representation -- 4.2 Global DC Management -- 5 Global Query Rewriting with Global DCs -- 5.1 Query with DCs -- 6 Validation -- 7 Conclusions and Future Work -- References -- Time Series and Data Streams -- Generating Comparative Explanations of Financial Time Series -- 1 Introduction -- 2 Literature Review -- 3 Data Overview -- 4 Financial Data Summarizer -- 5 Experiments -- 5.1 Intrinsic Evaluation. 5.2 Extrinsic Summary Validation -- 6 Conclusions and Future Works -- References -- Summarizing Edge-Device Data via Core Items -- 1 Introduction -- 2 Related Work -- 3 Preliminaries -- 3.1 Apache Storm -- 3.2 Stream Summarization -- 4 Algorithms for Core Item Sets Computation -- 4.1 SoftSieving -- 5 Experimental Evaluation -- 6 Conclusion -- References -- Parallel Techniques for Variable Size Segmentation of Time Series Datasets -- 1 Introduction -- 2 Problem Definition and Background -- 2.1 SAX Representation -- 2.2 Similarity Queries -- 2.3 Problem Statement -- 3 Adaptive SAX Based on the Representation's Sum of Squared Errors (ASAX_SSE) -- 3.1 Sum of Squared Errors (SSE) -- 3.2 SSE of PAA Representation Considering One Segment (LSSE) -- 3.3 SSE of PAA Representation Considering All Segments (GSSE) -- 3.4 Variable-Size Segmentation Based on SSE Measurement -- 3.5 Lower Bounding of the Similarity Measure -- 4 Parallel Versions of ASAX_SSE -- 4.1 Parallelization on Data -- 4.2 Parallelization on Segments -- 5 Experiments -- 5.1 Setup -- 5.2 Precision of k-Nearest Neighbor Search -- 5.3 Scalability -- 6 Related Work -- 7 Conclusion -- References -- On Line Analytical Processing -- ORTree: Tuning Diversified Similarity Queries by Means of Data Partitioning -- 1 Introduction -- 2 Background -- 2.1 Range-Tree -- 2.2 MAM - Omni-Technique -- 2.3 The Diversity Problem -- 2.4 Diversity Algorithms -- 2.5 Candidate Selection -- 3 Methodology -- 4 Experiments -- 4.1 Index Creation Time -- 4.2 Quality Experiments -- 4.3 Number of Elements Retrieved -- 4.4 Query Time Evaluation -- 5 Conclusions and Future Work -- References -- A Knowledge-Based Approach to Support Analytic Query Answering in Semantic Data Lakes*-12pt -- 1 Introduction -- 2 Case Study: Azure COVID-19 Data Lake -- 3 Semantic Data Lake: Data Model -- 3.1 Metadata Layer -- 3.2 Knowledge Layer. 4 Integration and Mapping Discovery -- 5 Query Answering -- 6 Evaluation -- 7 Conclusion -- References -- Insight-Based Vocalization of OLAP Sessions -- 1 Introduction -- 2 Related Work -- 3 Overview -- 4 Formal Background -- 5 The Vocalization Process -- 5.1 Insight Generation -- 5.2 Insight Selection -- 5.3 Vocalization -- 6 A Closer Look at the VOOL Modules -- 7 Evaluation and Conclusion -- References -- Advanced Querying -- Querying Temporal Anomalies in Healthcare Information Systems and Beyond -- 1 Introduction -- 2 Related Work -- 3 Temporal Anomalies -- 3.1 Preliminaries -- 3.2 Definition of Temporal Anomalies -- 3.3 Anomaly Labelling and Retrieval -- 4 SQL Implementations -- 4.1 Unfold/Fold -- 4.2 Unfold/Fold Join Filtered -- 4.3 Window Function -- 5 Experimental Evaluation -- 5.1 Setup and Dataset -- 5.2 Results -- 6 Conclusion and Future Work -- References -- Soft Spatial Querying on JSON Data Sets -- 1 Introduction -- 2 Background -- 2.1 Brief Introduction to Fuzzy Sets -- 2.2 Related Work -- 2.3 The J-CO Framework -- 3 Case Study and J-CO-QL+ Script -- 3.1 Case Study -- 3.2 Definition of Fuzzy Concepts -- 3.3 Processing a GeoJSON Document -- 3.4 Soft Spatial Querying -- 4 Conclusions -- References -- Maximum Range-Sum for Dynamically Occurring Objects with Decaying Weights -- 1 Introduction -- 2 Preliminaries -- 3 Approximate Solution to DDW-MaxRS -- 3.1 Properties of the Approximate Solution -- 3.2 Memory-Efficient Approximate Solution -- 4 Generalization -- 5 Experimental Study -- 6 Related Work -- 7 Conclusions and Future Work -- References -- Performance -- Storage Management with Multi-Version Partitioned BTrees -- 1 Introduction -- 2 Architecture of Multi-Version Partitioned BTrees -- 3 Cached Partition: Stop Re-writing Valid Data -- 4 Garbage Collection and Space Reclamation -- 5 Experimental Evaluation -- 6 Conclusion. References -- Generalization Aware Compression of Molecular Trajectories -- 1 Introduction -- 2 Background -- 3 Methodology -- 4 Experiments -- 5 Conclusions and Future Work -- References -- Analysing Workload Trends for Boosting Triple Stores Performance -- 1 Introduction -- 2 Background and Related Work -- 2.1 RDF Graph and Queries Processing -- 2.2 Indexing and Cache -- 2.3 Replication -- 2.4 Workload Adaption -- 2.5 Heat Query -- 3 Heat Item Gets Colder -- 3.1 Smoothing Methods -- 3.2 Exponential Smoothing -- 3.3 Holt-Winters' Additive Method -- 4 Experimental Evaluation -- 4.1 Exponential Smoothing -- 4.2 Hot Data Parts -- 4.3 Seasonality Factors and Capacity -- 5 Conclusion and Future Work -- References -- Machine Learning -- Comparison of Models Built Using AutoML and Data Fusion -- 1 Introduction -- 2 Related Work -- 3 Problem Statement -- 4 Proposed Approach -- 4.1 Datasets Description -- 4.2 Data Fusion Process -- 4.3 Experimental Design -- 4.4 Performance Evaluation -- 5 Conclusion and Future Work -- References -- Dimensional Data KNN-Based Imputation -- 1 Introduction -- 2 Related Work -- 3 DW Dimension -- 4 Distance Between Dimension Instances -- 4.1 Attribute Distance -- 4.2 Hierarchy Level Instance Distance -- 4.3 Hierarchy Instance Distance -- 4.4 Dimension Instance Weight -- 5 H-OLAPKNN Imputation -- 5.1 H-OLAPKNN Overview -- 5.2 Imputation for Parameters by OLAPKNN -- 6 Experimental Assessment -- 6.1 Technical Environment and Datasets -- 6.2 Experimental Methodology -- 6.3 Results and Analysis -- 7 Conclusion and Future Work -- References -- Feature Ranking from Random Forest Through Complex Network's Centrality Measures*2mm -- 1 Introduction -- 2 Related Work -- 2.1 Feature Selection and Ranking -- 2.2 Random Forests -- 2.3 Complex Networks -- 3 From Trees in a Random Forest to a Complex Network -- 4 Experimental Setup. 5 Results and Discussion. |
| Record Nr. | UNINA-9910590049403321 |
| Cham, Switzerland : , : Springer, , [2022] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Advances in databases and information systems : 26th European conference, ADBIS 2022, Turin, Italy, September 5-8, 2022, proceedings / / Silvia Chiusano, Tania Cerquitelli, Robert Wrembel (editors)
| Advances in databases and information systems : 26th European conference, ADBIS 2022, Turin, Italy, September 5-8, 2022, proceedings / / Silvia Chiusano, Tania Cerquitelli, Robert Wrembel (editors) |
| Pubbl/distr/stampa | Cham, Switzerland : , : Springer, , [2022] |
| Descrizione fisica | 1 online resource (419 pages) |
| Disciplina | 005.74 |
| Collana | Lecture notes in computer science |
| Soggetto topico |
Database management
Information technology |
| ISBN | 3-031-15740-0 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Preface -- Organization -- Abstracts of the Keynote Talks -- Toward AI-Powered Data-Driven Education -- Insider Stories: Analyzing Stress, Depression, and Staff Welfare at Major US Companies from Online Reviews -- Tensor Query Processing: Neural Network to speed up Databases and Classical ML! -- Understanding and Rewiring Cities and Societies: A Computational Social Science Perspective -- Contents -- Keynote Talk and Tutorials -- Understanding and Rewiring Cities -- 1 Introduction -- 2 Neighborhoods' Characteristics and Urban Vitality -- 3 How Safety Perception Influences Vitality -- 4 The Interplay of Neighborhoods' Socio-Economic Conditions, Urban Environment, People Behaviors, and Crime -- 5 The Impact of COVID-19 Pandemic on Human Behavior -- 6 Looking Ahead -- References -- AI Approaches in Processing and Using Data in Personalized Medicine -- 1 Introduction -- 2 Different Sources of Patients' Medical Big Data - Collection and Processing -- 3 Emergent Artificial Intelligence Approaches for Supporting Quality Medical Decisions -- 4 Medical Decision Support Systems -- 4.1 Smart Ambient Intelligent Living Environments -- 4.2 Intelligent System for Supporting Cancer Patients -- 5 Conclusion -- References -- Explainable, Interpretable, Trustworthy, Responsible, Ethical, Fair, Verifiable AI... What's Next? -- 1 Introduction -- 2 Explainability -- 3 Interpretability -- 4 The Problem of Bias -- 5 Fairness -- 6 Verification -- 7 Accountability -- 8 Conclusions -- References -- OLAP and NoSQL: Happily Ever After -- 1 Introduction and Motivation -- 2 Schema-on-Read Approaches -- 2.1 Graph OLAP -- 2.2 Approximate OLAP -- 3 Schema-on-Write Approaches -- 3.1 Mono-Model Approaches -- 3.2 Multi-model Approaches -- 4 Conclusion -- References -- What's New in Temporal Databases? -- 1 Introduction -- 2 Query Processing of Primitive Operators.
2.1 Temporal Selection -- 2.2 Temporal Joins -- 3 New Directions in Models and Semantics -- 4 Systems -- 5 Conclusion and Future Directions -- References -- Graph Processing -- An Algebra for Path Manipulation in Graph Databases -- 1 Introduction -- 2 Related Work -- 3 Data Model -- 4 Path Algebra -- 4.1 Operations over Paths -- 4.2 Operations over Sets of Paths -- 4.3 Examples of Queries -- 5 Properties -- 6 Use Cases -- 6.1 Transportation -- 6.2 Proteins -- 7 Discussion -- 7.1 Labels and Repeated Results -- 7.2 Notions of Compatibility -- 7.3 Paths Queries Across Multiple Graphs -- References -- Road Network Graph Representation for Traffic Analysis and Routing -- 1 Introduction -- 2 Related Work -- 3 Road Network Graph Modelling -- 3.1 Primal Graph -- 3.2 Dual Graph -- 4 Generation of Traffic Data -- 5 Traffic Data Integration -- 6 Routing -- 6.1 Managing Road Closures -- 7 Road Network Analysis -- 8 Conclusion -- References -- Parallel Discovery of Top-k Weighted Motifs in Large Graphs -- 1 Introduction -- 2 Related Research -- 3 Background -- 4 The Proposed Approach -- 4.1 Correctness -- 4.2 Extension to 4-Cliques -- 5 Performance Evaluation -- 6 Conclusions -- References -- A Data Quality Framework for Graph-Based Virtual Data Integration Systems -- 1 Introduction -- 2 Related Work -- 3 Preliminaries -- 3.1 Running Example -- 3.2 Formal Background -- 4 Managing Data Quality in Virtual Data Integration -- 4.1 DC Generation and Graph-Based Representation -- 4.2 Global DC Management -- 5 Global Query Rewriting with Global DCs -- 5.1 Query with DCs -- 6 Validation -- 7 Conclusions and Future Work -- References -- Time Series and Data Streams -- Generating Comparative Explanations of Financial Time Series -- 1 Introduction -- 2 Literature Review -- 3 Data Overview -- 4 Financial Data Summarizer -- 5 Experiments -- 5.1 Intrinsic Evaluation. 5.2 Extrinsic Summary Validation -- 6 Conclusions and Future Works -- References -- Summarizing Edge-Device Data via Core Items -- 1 Introduction -- 2 Related Work -- 3 Preliminaries -- 3.1 Apache Storm -- 3.2 Stream Summarization -- 4 Algorithms for Core Item Sets Computation -- 4.1 SoftSieving -- 5 Experimental Evaluation -- 6 Conclusion -- References -- Parallel Techniques for Variable Size Segmentation of Time Series Datasets -- 1 Introduction -- 2 Problem Definition and Background -- 2.1 SAX Representation -- 2.2 Similarity Queries -- 2.3 Problem Statement -- 3 Adaptive SAX Based on the Representation's Sum of Squared Errors (ASAX_SSE) -- 3.1 Sum of Squared Errors (SSE) -- 3.2 SSE of PAA Representation Considering One Segment (LSSE) -- 3.3 SSE of PAA Representation Considering All Segments (GSSE) -- 3.4 Variable-Size Segmentation Based on SSE Measurement -- 3.5 Lower Bounding of the Similarity Measure -- 4 Parallel Versions of ASAX_SSE -- 4.1 Parallelization on Data -- 4.2 Parallelization on Segments -- 5 Experiments -- 5.1 Setup -- 5.2 Precision of k-Nearest Neighbor Search -- 5.3 Scalability -- 6 Related Work -- 7 Conclusion -- References -- On Line Analytical Processing -- ORTree: Tuning Diversified Similarity Queries by Means of Data Partitioning -- 1 Introduction -- 2 Background -- 2.1 Range-Tree -- 2.2 MAM - Omni-Technique -- 2.3 The Diversity Problem -- 2.4 Diversity Algorithms -- 2.5 Candidate Selection -- 3 Methodology -- 4 Experiments -- 4.1 Index Creation Time -- 4.2 Quality Experiments -- 4.3 Number of Elements Retrieved -- 4.4 Query Time Evaluation -- 5 Conclusions and Future Work -- References -- A Knowledge-Based Approach to Support Analytic Query Answering in Semantic Data Lakes*-12pt -- 1 Introduction -- 2 Case Study: Azure COVID-19 Data Lake -- 3 Semantic Data Lake: Data Model -- 3.1 Metadata Layer -- 3.2 Knowledge Layer. 4 Integration and Mapping Discovery -- 5 Query Answering -- 6 Evaluation -- 7 Conclusion -- References -- Insight-Based Vocalization of OLAP Sessions -- 1 Introduction -- 2 Related Work -- 3 Overview -- 4 Formal Background -- 5 The Vocalization Process -- 5.1 Insight Generation -- 5.2 Insight Selection -- 5.3 Vocalization -- 6 A Closer Look at the VOOL Modules -- 7 Evaluation and Conclusion -- References -- Advanced Querying -- Querying Temporal Anomalies in Healthcare Information Systems and Beyond -- 1 Introduction -- 2 Related Work -- 3 Temporal Anomalies -- 3.1 Preliminaries -- 3.2 Definition of Temporal Anomalies -- 3.3 Anomaly Labelling and Retrieval -- 4 SQL Implementations -- 4.1 Unfold/Fold -- 4.2 Unfold/Fold Join Filtered -- 4.3 Window Function -- 5 Experimental Evaluation -- 5.1 Setup and Dataset -- 5.2 Results -- 6 Conclusion and Future Work -- References -- Soft Spatial Querying on JSON Data Sets -- 1 Introduction -- 2 Background -- 2.1 Brief Introduction to Fuzzy Sets -- 2.2 Related Work -- 2.3 The J-CO Framework -- 3 Case Study and J-CO-QL+ Script -- 3.1 Case Study -- 3.2 Definition of Fuzzy Concepts -- 3.3 Processing a GeoJSON Document -- 3.4 Soft Spatial Querying -- 4 Conclusions -- References -- Maximum Range-Sum for Dynamically Occurring Objects with Decaying Weights -- 1 Introduction -- 2 Preliminaries -- 3 Approximate Solution to DDW-MaxRS -- 3.1 Properties of the Approximate Solution -- 3.2 Memory-Efficient Approximate Solution -- 4 Generalization -- 5 Experimental Study -- 6 Related Work -- 7 Conclusions and Future Work -- References -- Performance -- Storage Management with Multi-Version Partitioned BTrees -- 1 Introduction -- 2 Architecture of Multi-Version Partitioned BTrees -- 3 Cached Partition: Stop Re-writing Valid Data -- 4 Garbage Collection and Space Reclamation -- 5 Experimental Evaluation -- 6 Conclusion. References -- Generalization Aware Compression of Molecular Trajectories -- 1 Introduction -- 2 Background -- 3 Methodology -- 4 Experiments -- 5 Conclusions and Future Work -- References -- Analysing Workload Trends for Boosting Triple Stores Performance -- 1 Introduction -- 2 Background and Related Work -- 2.1 RDF Graph and Queries Processing -- 2.2 Indexing and Cache -- 2.3 Replication -- 2.4 Workload Adaption -- 2.5 Heat Query -- 3 Heat Item Gets Colder -- 3.1 Smoothing Methods -- 3.2 Exponential Smoothing -- 3.3 Holt-Winters' Additive Method -- 4 Experimental Evaluation -- 4.1 Exponential Smoothing -- 4.2 Hot Data Parts -- 4.3 Seasonality Factors and Capacity -- 5 Conclusion and Future Work -- References -- Machine Learning -- Comparison of Models Built Using AutoML and Data Fusion -- 1 Introduction -- 2 Related Work -- 3 Problem Statement -- 4 Proposed Approach -- 4.1 Datasets Description -- 4.2 Data Fusion Process -- 4.3 Experimental Design -- 4.4 Performance Evaluation -- 5 Conclusion and Future Work -- References -- Dimensional Data KNN-Based Imputation -- 1 Introduction -- 2 Related Work -- 3 DW Dimension -- 4 Distance Between Dimension Instances -- 4.1 Attribute Distance -- 4.2 Hierarchy Level Instance Distance -- 4.3 Hierarchy Instance Distance -- 4.4 Dimension Instance Weight -- 5 H-OLAPKNN Imputation -- 5.1 H-OLAPKNN Overview -- 5.2 Imputation for Parameters by OLAPKNN -- 6 Experimental Assessment -- 6.1 Technical Environment and Datasets -- 6.2 Experimental Methodology -- 6.3 Results and Analysis -- 7 Conclusion and Future Work -- References -- Feature Ranking from Random Forest Through Complex Network's Centrality Measures*2mm -- 1 Introduction -- 2 Related Work -- 2.1 Feature Selection and Ranking -- 2.2 Random Forests -- 2.3 Complex Networks -- 3 From Trees in a Random Forest to a Complex Network -- 4 Experimental Setup. 5 Results and Discussion. |
| Record Nr. | UNISA-996485665503316 |
| Cham, Switzerland : , : Springer, , [2022] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
| ||
Advances in databases and information systems : 25th European Conference, ADBIS 2021, Tartu, Estonia, August 24-26, 2021, proceedings / / Ladjel Bellatreche [and three others] editors
| Advances in databases and information systems : 25th European Conference, ADBIS 2021, Tartu, Estonia, August 24-26, 2021, proceedings / / Ladjel Bellatreche [and three others] editors |
| Edizione | [1st ed. 2021.] |
| Pubbl/distr/stampa | Cham, Switzerland : , : Springer, , [2021] |
| Descrizione fisica | 1 online resource (XXI, 289 p. 84 illus., 51 illus. in color.) |
| Disciplina | 005.74 |
| Collana | Lecture Notes in Computer Science |
| Soggetto topico |
Databases
Database management |
| ISBN | 3-030-82472-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Patterns and events -- Social media and text mining -- Indexes, queries and constraints -- High-dimensional data and data streams -- Data integration. |
| Record Nr. | UNISA-996464436103316 |
| Cham, Switzerland : , : Springer, , [2021] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
| ||
Advances in databases and information systems : 25th European Conference, ADBIS 2021, Tartu, Estonia, August 24-26, 2021, proceedings / / Ladjel Bellatreche [and three others] editors
| Advances in databases and information systems : 25th European Conference, ADBIS 2021, Tartu, Estonia, August 24-26, 2021, proceedings / / Ladjel Bellatreche [and three others] editors |
| Edizione | [1st ed. 2021.] |
| Pubbl/distr/stampa | Cham, Switzerland : , : Springer, , [2021] |
| Descrizione fisica | 1 online resource (XXI, 289 p. 84 illus., 51 illus. in color.) |
| Disciplina | 005.74 |
| Collana | Lecture Notes in Computer Science |
| Soggetto topico |
Databases
Database management |
| ISBN | 3-030-82472-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Patterns and events -- Social media and text mining -- Indexes, queries and constraints -- High-dimensional data and data streams -- Data integration. |
| Record Nr. | UNINA-9910494554303321 |
| Cham, Switzerland : , : Springer, , [2021] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
