Research problems in data warehousing
CIKM '95 Proceedings of the fourth international conference on Information and knowledge management
Building the data warehouse (2nd ed.)
Building the data warehouse (2nd ed.)
An overview of data warehousing and OLAP technology
ACM SIGMOD Record
Advanced database systems
A product perspective on total data quality management
Communications of the ACM
Enhancing data quality in data warehouse environments
Communications of the ACM
Improving data warehouse and business information quality: methods for reducing costs and increasing profits
Comparison of access methods for time-evolving data
ACM Computing Surveys (CSUR)
Maintaining data warehouses over changing information sources
Communications of the ACM
Data warehousing: using the Wal-Mart model
Data warehousing: using the Wal-Mart model
Efficient computation of temporal aggregates with range predicates
PODS '01 Proceedings of the twentieth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
A foundation for capturing and querying complex multidimensional data
Information Systems - Data warehousing
Active Database Systems: Triggers and Rules for Advanced Database Processing
Active Database Systems: Triggers and Rules for Advanced Database Processing
Active data warehouses: complementing OLAP with analysis rules
Data & Knowledge Engineering - Data warehousing
IEEE Transactions on Knowledge and Data Engineering
Temporal Entity-Relationship Models-A Survey
IEEE Transactions on Knowledge and Data Engineering
Efficiently Supporting Temporal Granularities
IEEE Transactions on Knowledge and Data Engineering
Maintaining Temporal Views over Non-Temporal Information Sources for Data Warehousing
EDBT '98 Proceedings of the 6th International Conference on Extending Database Technology: Advances in Database Technology
Point-Versus Interval-Based Temporal Data Models
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Incremental Computation and Maintenance of Temporal Aggregates
Proceedings of the 17th International Conference on Data Engineering
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Modeling Temporal Consistency in Data Warehouses
DEXA '01 Proceedings of the 12th International Workshop on Database and Expert Systems Applications
Architecture and Quality in Data Warehouses
CAiSE '98 Proceedings of the 10th International Conference on Advanced Information Systems Engineering
A Temporal Query Language for OLAP: Implementation and a Case Study
DBPL '01 Revised Papers from the 8th International Workshop on Database Programming Languages
Effective timestamping in databases
The VLDB Journal — The International Journal on Very Large Data Bases
Towards an Accommodation of Delay in Temporal Active Databases
ADC '00 Proceedings of the Australasian Database Conference
Multidimensional Data Modeling for Complex Data
ICDE '99 Proceedings of the 15th International Conference on Data Engineering
Temporal data warehousing
Striving towards Near Real-Time Data Integration for Data Warehouses
DaWaK 2000 Proceedings of the 4th International Conference on Data Warehousing and Knowledge Discovery
Modeling strategies and alternatives for data warehousing projects
Communications of the ACM - Supporting exploratory search
A conceptual solution for representing time in data warehouse dimensions
APCCM '06 Proceedings of the 3rd Asia-Pacific conference on Conceptual modelling - Volume 53
Data & Knowledge Engineering
Real-time data warehouse loading methodology
IDEAS '08 Proceedings of the 2008 international symposium on Database engineering & applications
Optimizing data warehouse loading procedures for enabling useful-time data warehousing
IDEAS '09 Proceedings of the 2009 International Database Engineering & Applications Symposium
Maintaining internal consistency of report for real-time OLAP with layer-based view
APWeb'11 Proceedings of the 13th Asia-Pacific web conference on Web technologies and applications
What time is it in the data warehouse?
DaWaK'06 Proceedings of the 8th international conference on Data Warehousing and Knowledge Discovery
Performance optimization of analysis rules in real-time active data warehouses
APWeb'12 Proceedings of the 14th Asia-Pacific international conference on Web Technologies and Applications
Proceedings of the sixteenth international workshop on Data warehousing and OLAP
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Real-world changes are generally discovered delayed by computer systems. The typical update patterns for traditional data warehouses on an overnight or even weekly basis increase this propagation delay until the information is available to knowledge workers. Typically, traditional data warehouses focus on summarized data (at some level) rather than detailed data.For active data warehouse environments, detailed data about entities is required for checking the data conditions and triggering actions to automize routine decision tasks. Hence, keeping data current (by minimizing the latency from when data is captured until it is available to knowledge workers) and consistent in that context is a difficult task.In this paper we present an approach for modeling conceptual time consistency problems and introduce a data model that deals with timely delays. It supports knowledge workers in finding out, why (or why not) an active system responded to a certain state of the data. Therefore, the model enables analytical processing of detailed data (enhanced by valid time) based on a knowledge state at a specific time. All states that were not yet known by the system at that point in time are consistently ignored. This enables timely consistent analyses by considering that the validity of detailed data and aggregates can be restricted to time intervals only, due to frequent updates and late-arriving information.