Query processing over incomplete databases:
Incomplete data is part of life and almost all areas of scientific studies. Users tend to skip certain fields when they fill out online forms; participants choose to ignore sensitive questions on surveys; sensors fail, resulting in the loss of certain readings; publicly viewable satellite map servic...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Elektronisch E-Book |
Sprache: | English |
Veröffentlicht: |
[San Rafael, California]
Morgan & Claypool Publishers
[2018]
|
Schriftenreihe: | Synthesis lectures on data management
#50 |
Schlagworte: | |
Online-Zugang: | URL des Erstveröffentlichers |
Zusammenfassung: | Incomplete data is part of life and almost all areas of scientific studies. Users tend to skip certain fields when they fill out online forms; participants choose to ignore sensitive questions on surveys; sensors fail, resulting in the loss of certain readings; publicly viewable satellite map services have missing data in many mobile applications; and in privacy-preserving applications, the data is incomplete deliberately in order to preserve the sensitivity of some attribute values. Query processing is a fundamental problem in computer science, and is useful in a variety of applications. In this book, we mostly focus on the query processing over incomplete databases, which involves finding a set of qualified objects from a specified incomplete dataset in order to support a wide spectrum of real-life applications. We first elaborate the three general kinds of methods of handling incomplete data, including (i) discarding the data with missing values, (ii) imputation for the missing values, and (iii) just depending on the observed data values. For the third method type, we introduce the semantics of k-nearest neighbor (kNN) search, skyline query, and top-k dominating query on incomplete data, respectively. In terms of the three representative queries over incomplete data, we investigate some advanced techniques to process incomplete data queries, including indexing, pruning as well as crowdsourcing techniques |
Beschreibung: | Part of: Synthesis digital library of engineering and computer science Title from PDF title page (viewed on August 29, 2018) |
Beschreibung: | 1 Online-Resource (xv, 106 Seiten) Illustrationen |
ISBN: | 9781681734217 |
DOI: | 10.2200/S00870ED1V01Y201807DTM050 |
Internformat
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520 | |a Incomplete data is part of life and almost all areas of scientific studies. Users tend to skip certain fields when they fill out online forms; participants choose to ignore sensitive questions on surveys; sensors fail, resulting in the loss of certain readings; publicly viewable satellite map services have missing data in many mobile applications; and in privacy-preserving applications, the data is incomplete deliberately in order to preserve the sensitivity of some attribute values. Query processing is a fundamental problem in computer science, and is useful in a variety of applications. In this book, we mostly focus on the query processing over incomplete databases, which involves finding a set of qualified objects from a specified incomplete dataset in order to support a wide spectrum of real-life applications. We first elaborate the three general kinds of methods of handling incomplete data, including (i) discarding the data with missing values, (ii) imputation for the missing values, and (iii) just depending on the observed data values. For the third method type, we introduce the semantics of k-nearest neighbor (kNN) search, skyline query, and top-k dominating query on incomplete data, respectively. In terms of the three representative queries over incomplete data, we investigate some advanced techniques to process incomplete data queries, including indexing, pruning as well as crowdsourcing techniques | ||
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Datensatz im Suchindex
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any_adam_object | |
author | Gao, Yunjun Miao, Xiaoye |
author_GND | (DE-588)143651285 (DE-588)1167260368 |
author_facet | Gao, Yunjun Miao, Xiaoye |
author_role | aut aut |
author_sort | Gao, Yunjun |
author_variant | y g yg x m xm |
building | Verbundindex |
bvnumber | BV046427620 |
classification_rvk | ST 270 ST 285 |
collection | ZDB-105-MCS ZDB-105-MCDM |
ctrlnum | (ZDB-105-MCS)8444554 (OCoLC)1141130739 (DE-599)BVBBV046427620 |
dewey-full | 005.7565 |
dewey-hundreds | 000 - Computer science, information, general works |
dewey-ones | 005 - Computer programming, programs, data, security |
dewey-raw | 005.7565 |
dewey-search | 005.7565 |
dewey-sort | 15.7565 |
dewey-tens | 000 - Computer science, information, general works |
discipline | Informatik |
doi_str_mv | 10.2200/S00870ED1V01Y201807DTM050 |
format | Electronic eBook |
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id | DE-604.BV046427620 |
illustrated | Not Illustrated |
indexdate | 2024-07-10T08:44:19Z |
institution | BVB |
isbn | 9781681734217 |
language | English |
oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-031839923 |
oclc_num | 1141130739 |
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owner_facet | DE-83 |
physical | 1 Online-Resource (xv, 106 Seiten) Illustrationen |
psigel | ZDB-105-MCS ZDB-105-MCDM |
publishDate | 2018 |
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publishDateSort | 2018 |
publisher | Morgan & Claypool Publishers |
record_format | marc |
series | Synthesis lectures on data management |
series2 | Synthesis lectures on data management |
spelling | Gao, Yunjun Verfasser (DE-588)143651285 aut Query processing over incomplete databases Yunjun Gao, Xiaoye Miao [San Rafael, California] Morgan & Claypool Publishers [2018] © 2018 1 Online-Resource (xv, 106 Seiten) Illustrationen txt rdacontent c rdamedia cr rdacarrier Synthesis lectures on data management #50 Part of: Synthesis digital library of engineering and computer science Title from PDF title page (viewed on August 29, 2018) Incomplete data is part of life and almost all areas of scientific studies. Users tend to skip certain fields when they fill out online forms; participants choose to ignore sensitive questions on surveys; sensors fail, resulting in the loss of certain readings; publicly viewable satellite map services have missing data in many mobile applications; and in privacy-preserving applications, the data is incomplete deliberately in order to preserve the sensitivity of some attribute values. Query processing is a fundamental problem in computer science, and is useful in a variety of applications. In this book, we mostly focus on the query processing over incomplete databases, which involves finding a set of qualified objects from a specified incomplete dataset in order to support a wide spectrum of real-life applications. We first elaborate the three general kinds of methods of handling incomplete data, including (i) discarding the data with missing values, (ii) imputation for the missing values, and (iii) just depending on the observed data values. For the third method type, we introduce the semantics of k-nearest neighbor (kNN) search, skyline query, and top-k dominating query on incomplete data, respectively. In terms of the three representative queries over incomplete data, we investigate some advanced techniques to process incomplete data queries, including indexing, pruning as well as crowdsourcing techniques Querying (Computer science) Database searching Missing observations (Statistics) Datenbanksystem (DE-588)4113276-2 gnd rswk-swf Abfrageverarbeitung (DE-588)4378490-2 gnd rswk-swf Unvollständigkeit (DE-588)4509185-7 gnd rswk-swf Datenbanksystem (DE-588)4113276-2 s Unvollständigkeit (DE-588)4509185-7 s Abfrageverarbeitung (DE-588)4378490-2 s DE-604 Miao, Xiaoye Verfasser (DE-588)1167260368 aut Erscheint auch als Druck-Ausgabe, paperback 978-1-68173-420-0 Erscheint auch als Druck-Ausgabe, hardcover 978-1-68173-422-4 Synthesis lectures on data management #50 (DE-604)BV036731811 50 https://doi.org/10.2200/S00870ED1V01Y201807DTM050 Verlag URL des Erstveröffentlichers Volltext |
spellingShingle | Gao, Yunjun Miao, Xiaoye Query processing over incomplete databases Synthesis lectures on data management Querying (Computer science) Database searching Missing observations (Statistics) Datenbanksystem (DE-588)4113276-2 gnd Abfrageverarbeitung (DE-588)4378490-2 gnd Unvollständigkeit (DE-588)4509185-7 gnd |
subject_GND | (DE-588)4113276-2 (DE-588)4378490-2 (DE-588)4509185-7 |
title | Query processing over incomplete databases |
title_auth | Query processing over incomplete databases |
title_exact_search | Query processing over incomplete databases |
title_full | Query processing over incomplete databases Yunjun Gao, Xiaoye Miao |
title_fullStr | Query processing over incomplete databases Yunjun Gao, Xiaoye Miao |
title_full_unstemmed | Query processing over incomplete databases Yunjun Gao, Xiaoye Miao |
title_short | Query processing over incomplete databases |
title_sort | query processing over incomplete databases |
topic | Querying (Computer science) Database searching Missing observations (Statistics) Datenbanksystem (DE-588)4113276-2 gnd Abfrageverarbeitung (DE-588)4378490-2 gnd Unvollständigkeit (DE-588)4509185-7 gnd |
topic_facet | Querying (Computer science) Database searching Missing observations (Statistics) Datenbanksystem Abfrageverarbeitung Unvollständigkeit |
url | https://doi.org/10.2200/S00870ED1V01Y201807DTM050 |
volume_link | (DE-604)BV036731811 |
work_keys_str_mv | AT gaoyunjun queryprocessingoverincompletedatabases AT miaoxiaoye queryprocessingoverincompletedatabases |