Browsing Tetherless World Publications by Author "Williams, Gregory"
Now showing items 1-11 of 11
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Converting governmental datasets into linked data
Lebo, Tim; Williams, Gregory (2010-09-01)Linked Data provide many benefits to data consumers, but many publicly available datasets are still released in the Comma Separated Values (CSV) format, a ubiquitous common denominator. We introduce a methodology to transform ... -
Enabling fine-grained HTTP caching of SPARQL query results
Williams, Gregory; Weaver, Jesse (2011-10-23)As SPARQL endpoints are increasingly used to serve linked data, their ability to scale becomes crucial. Although much work has been done to improve query evaluation, little has been done to take advantage of caching. ... -
Producing and Using Linked Open Government Data in the TWC LOGD Portal
Lebo, Tim; Erickson, John S.; Graves, Alvaro; Williams, Gregory; DiFranzo, Dominic; Li, Xian; Michaelis, James; Zheng, Jin; Flores, Johanna; Shangguan, Zhenning; McGuinness, Deborah L.; Hendler, James A. (2011-11-04)As open government initiatives around the world pub- lish an increasing number of raw datasets, citizens and communities face daunting challenges when organiz- ing, understanding, and associating disparate data re- lated ... -
Reducing I/O Load in Parallel RDF Systems via Data Compression
Weaver, Jesse; Williams, Gregory (2011-05-29) -
Scalable RDF query processing on clusters and supercomputers
Weaver, Jesse; Williams, Gregory (2009-10-26)The proliferation of RDF data on the web has increased the need for systems that can query these data while scaling with their growing size and number. We present an application of parallel hash-joins for basic graph pattern ... -
Scalable Reduction of Large Datasets to Interesting Subsets
Williams, Gregory; Weaver, Jesse; Atre, Medha; Hendler, James A. (2010-08-19) -
Supporting Identity Reasoning in SPARQL
Williams, Gregory (2008-01-01) -
Techniques for Next Generation Querying of the Web
Williams, Gregory (2008-01-01) -
The Web is My Back-end: Creating Mashups with Linked Open Government Data
DiFranzo, Dominic; Graves, Alvaro; Erickson, John S.; Ding, Li; Michaelis, James; Lebo, Tim; Patton, Evan; Williams, Gregory; Li, Xian; Zheng, Jin; Flores, Johanna; McGuinness, Deborah L.; Hendler, James A. (Linking Government Data, 2011-01-01)Governments around the world have been releasing raw data to their citizens at an increased pace. The mixing and linking of these government datasets enhances their value and makes new insights possible. The use of mashups, ... -
TWC LOGD: A Portal for Linked Open Government Data Ecosystems
Ding, Li; Lebo, Tim; Erickson, John S.; DiFranzo, Dominic; Williams, Gregory; Li, Xian; Michaelis, James; Graves, Alvaro; Zheng, Jin; Flores, Johanna; McGuinness, Deborah L.; Hendler, James A. (Journal of Web Semantics, 2011-06-22)International open government initiatives are releasing an increasing volume of raw government datasets directly to citizens via the Web. The transparency resulting from these releases creates new application opportunities ... -
TWC LOGD: A Portal for Linking Open Government Data
DiFranzo, Dominic; Ding, Li; Erickson, John S.; Li, Xian; Lebo, Tim; Michaelis, James; Graves, Alvaro; Williams, Gregory; Zheng, Jin; Flores, Johanna; Gervasio, Gino; McGuinness, Deborah L.; Hendler, James A. (2010-11-11)International open government initiatives are releasing an increasing number of “raw” government datasets directly to citizens via the Web, creating new opportunities but imposing burdens inherent to the problems of ...