NDLI: Analysis of Schemas with Access Restrictions

Content Provider	ACM Digital Library
Author	Bourhis, Pierre Ley, Clemens Benedikt, Michael
Copyright Year	2015
Abstract	We study verification of systems whose transitions consist of accesses to a Web-based data source. An access is a lookup on a relation within a relational database, fixing values for a set of positions in the relation. For example, a transition can represent access to a Web form, where the user is restricted to filling in values for a particular set of fields. We look at verifying properties of a schema describing the possible accesses of such a system. We present a language where one can describe the properties of an access path and also specify additional restrictions on accesses that are enforced by the schema. Our main property language, AccessLTL, is based on a first-order extension of linear-time temporal logic, interpreting access paths as sequences of relational structures. We also present a lower-level automaton model, A-automata, into which AccessLTL specifications can compile. We show that AccessLTL and A-automata can express static analysis problems related to “querying with limited access patterns” that have been studied in the database literature in the past, such as whether an access is relevant to answering a query and whether two queries are equivalent in the accessible data they can return. We prove decidability and complexity results for several restrictions and variants of AccessLTL and explain which properties of paths can be expressed in each restriction.
Starting Page	1
Ending Page	46
Page Count	46
File Format	PDF
ISSN	03625915
e-ISSN	15574644
DOI	10.1145/2699500
Volume Number	40
Issue Number	1
Journal	ACM Transactions on Database Systems (TODS)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2015-03-25
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Access methods Hidden Web Optimization
Content Type	Text
Resource Type	Article
Subject	Information Systems

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Generating Plans from Proofs

An X-ray on web-available XML schemas

Static analysis and optimization of semantic web queries

Automatic Filling of Hidden Web Forms:A Survey

Querying schemas with access restrictions

Probe, count, and classify:categorizing hidden web databases

Analysis of object oriented spatial access methods

QProber: A system for automatic classification of hidden-Web databases

Reconsidering Multi-Dimensional schemas

Analysis of Schemas with Access Restrictions

Similar Documents

Generating Plans from Proofs

An X-ray on web-available XML schemas

Static analysis and optimization of semantic web queries

Automatic Filling of Hidden Web Forms:A Survey

Querying schemas with access restrictions

Probe, count, and classify:categorizing hidden web databases

Analysis of object oriented spatial access methods

QProber: A system for automatic classification of hidden-Web databases

Reconsidering Multi-Dimensional schemas

Analysis of Schemas with Access Restrictions