NDLI: Algorithms for mining meaningful roles

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Algorithms for mining meaningful roles

Content Provider	ACM Digital Library
Author	Xu, Zhongyuan Stoller, Scott D.
Abstract	Role-based access control (RBAC) offers significant advantages over lower-level access control policy representations, such as access control lists (ACLs). However, the effort required for a large organization to migrate from ACLs to RBAC can be a significant obstacle to adoption of RBAC. Role mining algorithms partially automate the construction of an RBAC policy from an ACL policy and possibly other information, such as user attributes. These algorithms can significantly reduce the cost of migration to RBAC. This paper proposes new algorithms for role mining. The algorithms can easily be used to optimize a variety of policy quality metrics, including metrics based on policy size, metrics based on interpretability of the roles with respect to user attribute data, and compound metrics that consider size and interpretability. The algorithms all begin with a phase that constructs a set of candidate roles. We consider two strategies for the second phase: start with an empty policy and repeatedly add candidate roles, or start with the entire set of candidate roles and repeatedly remove roles. In experiments with publicly available access control policies, we find that the elimination approach produces better results, and that, for a policy quality metric that reflects size and interpretability, our elimination algorithm achieves significantly better results than previous work.
Starting Page	57
Ending Page	66
Page Count	10
File Format	PDF
ISBN	9781450312950
DOI	10.1145/2295136.2295146
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2012-06-20
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Role mining Role-based access control
Content Type	Text
Resource Type	Article

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

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