A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
The state of the art in distributed query processing
ACM Computing Surveys (CSUR)
Chord: A scalable peer-to-peer lookup service for internet applications
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
A scalable content-addressable network
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
A fine-grained access control system for XML documents
ACM Transactions on Information and System Security (TISSEC)
The Design of Rijndael
Kademlia: A Peer-to-Peer Information System Based on the XOR Metric
IPTPS '01 Revised Papers from the First International Workshop on Peer-to-Peer Systems
Pastry: Scalable, Decentralized Object Location, and Routing for Large-Scale Peer-to-Peer Systems
Middleware '01 Proceedings of the IFIP/ACM International Conference on Distributed Systems Platforms Heidelberg
k-anonymity: a model for protecting privacy
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems
Secure XML querying with security views
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Data Privacy through Optimal k-Anonymization
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Peer-to-peer management of XML data: issues and research challenges
ACM SIGMOD Record
L-diversity: Privacy beyond k-anonymity
ACM Transactions on Knowledge Discovery from Data (TKDD)
Highly distributed XQuery with DXQ
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
Anonymizing Classification Data for Privacy Preservation
IEEE Transactions on Knowledge and Data Engineering
Locating data sources in large distributed systems
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
XFlat: Query-friendly encrypted XML view publishing
Information Sciences: an International Journal
XRPC: interoperable and efficient distributed XQuery
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
DXQ: a distributed XQuery scripting language
XIME-P '07 Proceedings of the 4th international workshop on XQuery implementation, experience and perspectives
Workload-aware anonymization techniques for large-scale datasets
ACM Transactions on Database Systems (TODS)
XTreeNet: democratic community search
Proceedings of the VLDB Endowment
Journal of Biomedical Informatics
Multiuser cryptographic techniques
AFIPS '76 Proceedings of the June 7-10, 1976, national computer conference and exposition
Publishing Sensitive Transactions for Itemset Utility
ICDM '08 Proceedings of the 2008 Eighth IEEE International Conference on Data Mining
On the Anonymization of Sparse High-Dimensional Data
ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
XML processing in DHT networks
ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
An Internet-Scale Service for Publishing and Locating XML Documents
ICDE '09 Proceedings of the 2009 IEEE International Conference on Data Engineering
Locating XML Documents in a Peer-to-Peer Network Using Distributed Hash Tables
IEEE Transactions on Knowledge and Data Engineering
Anonymization of set-valued data via top-down, local generalization
Proceedings of the VLDB Endowment
EC-Web'07 Proceedings of the 8th international conference on E-commerce and web technologies
Data mining with differential privacy
Proceedings of the 16th ACM SIGKDD international conference on Knowledge discovery and data mining
Discovering frequent patterns in sensitive data
Proceedings of the 16th ACM SIGKDD international conference on Knowledge discovery and data mining
Federated querying architecture for clinical & translational health IT
Proceedings of the 1st ACM International Health Informatics Symposium
Towards large-scale sharing of electronic health records of cancer patients
Proceedings of the 1st ACM International Health Informatics Symposium
Boosting the accuracy of differentially private histograms through consistency
Proceedings of the VLDB Endowment
ρ-uncertainty: inference-proof transaction anonymization
Proceedings of the VLDB Endowment
Local and global recoding methods for anonymizing set-valued data
The VLDB Journal — The International Journal on Very Large Data Bases
Differential Privacy via Wavelet Transforms
IEEE Transactions on Knowledge and Data Engineering
Journal of Computer and System Sciences
Federated Querying Architecture with Clinical & Translational Health IT Application
Journal of Medical Systems
Proceedings of the 2nd ACM SIGHIT International Health Informatics Symposium
Analyzing clinical data in XML: bridging the gaps
Proceedings of the 2nd ACM SIGHIT International Health Informatics Symposium
Tapestry: a resilient global-scale overlay for service deployment
IEEE Journal on Selected Areas in Communications
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We present a new software tool called CDN (Collaborative Data Network) for sharing and querying of clinical documents modeled using HL7 v3 standard (e.g., Clinical Document Architecture (CDA), Continuity of Care Document (CCD)). Similar to the caBIG initiative, CDN aims to foster innovations in cancer treatment and diagnosis through large-scale, sharing of clinical data. We focus on cancer because it is the second leading cause of deaths in the US. CDN is based on the synergistic combination of peer-to-peer technology and the extensible markup language XML and XQuery. Using CDN, a user can pose both structured queries and keyword queries on the HL7 v3 documents hosted by data providers. CDN is unique in its design - it supports location oblivious queries in a large-scale, network wherein a user does not explicitly provide the location of the data for a query. A location service in CDN discovers data of interest in the network at query time. CDN uses standard cryptographic techniques to provide security to data providers and protect the privacy of patients. Using CDN, a user can pose clinical queries pertaining to cancer containing aggregations and joins across data hosted by multiple data providers. CDN is implemented with open-source software for web application development and XML query processing. We ran CDN in a distributed environment using Amazon EC2 as a testbed. We report its performance on real and synthetic datasets of discharge summaries. We show that CDN can achieve good performance in a setup with large number of data providers and documents.