Ebook: Time Granularities in Databases, Data Mining, and Temporal Reasoning

Calendar units, such as months and days, clock units, such as hours and seconds, and specialized units, such as business days and academic years, play a major role in a wide range of information system applications. System support for reasoning about these units, called granularities in this book, is important for the efficient design, use, and implementation of such applications. The book deals with several aspects of temporal information and provides a unifying model for granularities. It is intended for computer scientists and engineers who are interested in the formal models and technical development of specific issues. Practitioners can learn about critical aspects that must be taken into account when designing and implementing databases supporting temporal information. Lecturers may find this book useful for an advanced course on databases. Moreover, any graduate student working on time representation and reasoning, either in data or knowledge bases, should definitely read it.

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Calendar units, such as months and days, clock units, such as hours and seconds, and specialized units, such as business days and academic years, play a major role in a wide range of information system applications. System support for reasoning about these units, called granularities in this book, is important for the efficient design, use, and implementation of such applications. The book deals with several aspects of temporal information and provides a unifying model for granularities. It is intended for computer scientists and engineers who are interested in the formal models and technical development of specific issues. Practitioners can learn about critical aspects that must be taken into account when designing and implementing databases supporting temporal information. Lecturers may find this book useful for an advanced course on databases. Moreover, any graduate student working on time representation and reasoning, either in data or knowledge bases, should definitely read it.

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Calendar units, such as months and days, clock units, such as hours and seconds, and specialized units, such as business days and academic years, play a major role in a wide range of information system applications. System support for reasoning about these units, called granularities in this book, is important for the efficient design, use, and implementation of such applications. The book deals with several aspects of temporal information and provides a unifying model for granularities. It is intended for computer scientists and engineers who are interested in the formal models and technical development of specific issues. Practitioners can learn about critical aspects that must be taken into account when designing and implementing databases supporting temporal information. Lecturers may find this book useful for an advanced course on databases. Moreover, any graduate student working on time representation and reasoning, either in data or knowledge bases, should definitely read it.
Content:
Front Matter....Pages I-XI
Front Matter....Pages 1-1
Introduction....Pages 3-10
Granularity Systems....Pages 11-44
Front Matter....Pages 45-45
Design of Temporal Databases with Multiple Granularities....Pages 47-81
Querying Temporal Databases with Multiple Views....Pages 83-113
Front Matter....Pages 115-115
Constraint Reasoning....Pages 117-151
An Application to Knowledge Discovery....Pages 153-173
Front Matter....Pages 175-175
Open Issues and Research Directions....Pages 177-184
Appendix: Proofs....Pages 185-221
Back Matter....Pages 223-230

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Calendar units, such as months and days, clock units, such as hours and seconds, and specialized units, such as business days and academic years, play a major role in a wide range of information system applications. System support for reasoning about these units, called granularities in this book, is important for the efficient design, use, and implementation of such applications. The book deals with several aspects of temporal information and provides a unifying model for granularities. It is intended for computer scientists and engineers who are interested in the formal models and technical development of specific issues. Practitioners can learn about critical aspects that must be taken into account when designing and implementing databases supporting temporal information. Lecturers may find this book useful for an advanced course on databases. Moreover, any graduate student working on time representation and reasoning, either in data or knowledge bases, should definitely read it.
Content:
Front Matter....Pages I-XI
Front Matter....Pages 1-1
Introduction....Pages 3-10
Granularity Systems....Pages 11-44
Front Matter....Pages 45-45
Design of Temporal Databases with Multiple Granularities....Pages 47-81
Querying Temporal Databases with Multiple Views....Pages 83-113
Front Matter....Pages 115-115
Constraint Reasoning....Pages 117-151
An Application to Knowledge Discovery....Pages 153-173
Front Matter....Pages 175-175
Open Issues and Research Directions....Pages 177-184
Appendix: Proofs....Pages 185-221
Back Matter....Pages 223-230
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