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dc.contributor.author
Ramesh, Sukriti
dc.date.accessioned
2017-11-07T11:02:18Z
dc.date.available
2017-06-09T17:14:43Z
dc.date.available
2017-11-07T11:02:18Z
dc.date.issued
2011
dc.identifier.uri
http://hdl.handle.net/20.500.11850/41276
dc.identifier.doi
10.3929/ethz-a-006422870
dc.description.abstract
Despite the advances in the areas of databases and information retrieval, there still remain certain types of queries that are difficult to answer using machines alone. Such queries require human interaction to either provide data that is not readily available to machines or to gain more information from existing electronic data. CrowdDB is a database system that enables difficult queries to be answered by using crowdsourcing to integrate human knowledge with electronically available data. To a large extent, the concepts and capabilities of traditional database systems are leveraged in CrowdDB. Despite the commonalities, since CrowdDB deals with procuring and utilizing human input, several existing capabilities of traditional database systems require modifications and extensions. Much unlike electronically available data, human input provided by crowdsourcing is unbounded and virtually infinite. Accordingly, CrowdDB is a system based on an open-world assumption. An extension of SQL, termed as Crowd-SQL, is used to model data and manipulate it. CrowdSQL is also used as the language to express complex queries on the integrated data sources. Furthermore, interaction with the crowd in CrowdDB requires an additional component that governs automatic user interface generation, based on available schemas and queries. Also, performance acquires a new meaning in the context of a system such as CrowdDB. Response time (efficiency), quality (effectiveness) and cost (in $) in CrowdDB are dependent on a number of different parameters including the availability of the crowd, financial rewards for tasks and state of the crowdsourcing platform. In this thesis, we propose the design, architecture and functioning of CrowdDB. In addition, we present the details of building such a system on an existing Java-based database, H2. The design and functionalities of CrowdDB have also been presented in [13].
en_US
dc.format
application/pdf
dc.language.iso
en
en_US
dc.publisher
Eidgenössische Technische Hochschule Zürich, Department of Computer Science, Systems Group
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
HUMAN-COMPUTER INTERACTION, HCI
en_US
dc.subject
EXPERTENWISSEN (KÜNSTLICHE INTELLIGENZ)
en_US
dc.subject
ABFRAGEN (INFORMATIONSSYSTEME)
en_US
dc.subject
EXPERTISE + EXPERT JUDGMENT (ARTIFICIAL INTELLIGENCE)
en_US
dc.subject
SPECIAL PROGRAMMING LANGUAGES
en_US
dc.subject
QUERIES (INFORMATION SYSTEMS)
en_US
dc.subject
SPEZIELLE PROGRAMMIERSPRACHEN
en_US
dc.title
CrowdDB
en_US
dc.type
Master Thesis
dc.rights.license
In Copyright - Non-Commercial Use Permitted
ethz.title.subtitle
Answering Queries with Crowdsourcing
en_US
ethz.size
63 p.
en_US
ethz.code.ddc
DDC - DDC::0 - Computer science, information & general works::004 - Data processing, computer science
en_US
ethz.identifier.nebis
006422870
ethz.publication.place
Zürich
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02150 - Dep. Informatik / Dep. of Computer Science::02663 - Institut für Computing Platforms / Institute for Computing Platforms::03689 - Kossmann, Donald (ehemalig)
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02150 - Dep. Informatik / Dep. of Computer Science::02642 - Institut für Informationssysteme (ehem.) / Institute of Information Systems (form.)
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02150 - Dep. Informatik / Dep. of Computer Science::02663 - Institut für Computing Platforms / Institute for Computing Platforms::03689 - Kossmann, Donald (ehemalig)
ethz.identifier.url
http://dx.doi.org/10.3929/ethz-a-006422870
ethz.date.deposited
2017-06-09T17:14:54Z
ethz.source
ECOL
ethz.source
ECIT
ethz.identifier.importid
imp59364ea50608828448
ethz.identifier.importid
imp59366b00374ba22306
ethz.ecolpid
eth:2632
ethz.ecitpid
pub:68934
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-15T02:02:18Z
ethz.rosetta.lastUpdated
2020-02-15T06:16:28Z
ethz.rosetta.versionExported
true
ethz.COinS
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