Ken Baclawski - Academia.edu (original) (raw)
Papers by Ken Baclawski
... Ken Baclawski College of Computer Science Northeastern University Boston, MA, 02115 kenb@ccs.... more ... Ken Baclawski College of Computer Science Northeastern University Boston, MA, 02115 kenb@ccs.neu.edu Scott DeLoach Air Force Institute of Technology Dayton, OH, 02115 - please correct Scott.Deloach@afit.af.mil ¡¢£¤¥ Using ...
The role that ontologies play or can play in designing and employing semantic technologies has be... more The role that ontologies play or can play in designing and employing semantic technologies has been widely acknowledged by the Semantic Web and Linked Data communities. But the level of collaboration between these communities and the Applied Ontology community has been much less than expected. And ontologies and ontological techniques appear to be of marginal use in Big Data and its applications.
Data Mining, Intrusion Detection, Information Assurance, and Data Networks Security 2007, 2007
Blogs represent an important new arena for knowledge discovery in open source intelligence gather... more Blogs represent an important new arena for knowledge discovery in open source intelligence gathering. Bloggers are a vast network of human (and sometimes non-human) information sources monitoring important local and global events, and other blogs, for items of interest upon which they comment. Increasingly, issues erupt from the blog world and into the real world. In order to monitor blogging about important events, we must develop models and metrics that represent blogs correctly. The structure of blogs requires new techniques for evaluating such metrics as the relevance, specificity, credibility and timeliness of blog entries. Techniques that have been developed for standard information retrieval purposes (e.g. Google's PageRank) are suboptimal when applied to blogs because of their high degree of exophoricity, quotation, brevity, and rapidity of update. In this paper, we offer new metrics related for blog entry relevance, specificity, timeliness and credibility that we are implementing in a blog search and analysis tool for international blogs. This tools utilizes new blog-specific metrics and techniques for extracting the necessary information from blog entries automatically, using some shallow natural language processing techniques supported by background knowledge captured in domain-specific ontologies.
ACM SIGMOD Record, 1994
Evaluating database system performance often requires generating synthetic databases - ones havin... more Evaluating database system performance often requires generating synthetic databases - ones having certain statistical properties but filled with dummy information. When evaluating different database designs, it is often necessary to generate several databases and evaluate each design. As database sizes grow to terabytes, generation often takes longer than evaluation. This paper presents several database generation techniques. In particular it discusses:
The blogosphere provides a novel window into public opinion, but its dynamic nature makes it an e... more The blogosphere provides a novel window into public opinion, but its dynamic nature makes it an elusive medium to analyze and interpret in the aggregate, where it is most informative. We are developing new technology employing ontologies to solve this problem by fusing the signals of the blogosphere and zeroing in on issues that are most likely to migrate offline, enabling analysts to anticipate the threats or opportunities they represent.
... Ken Baclawski College of Computer Science Northeastern University Boston, MA, 02115 kenb@ccs.... more ... Ken Baclawski College of Computer Science Northeastern University Boston, MA, 02115 kenb@ccs.neu.edu Scott DeLoach Air Force Institute of Technology Dayton, OH, 02115 - please correct Scott.Deloach@afit.af.mil ¡¢£¤¥ Using ...
The role that ontologies play or can play in designing and employing semantic technologies has be... more The role that ontologies play or can play in designing and employing semantic technologies has been widely acknowledged by the Semantic Web and Linked Data communities. But the level of collaboration between these communities and the Applied Ontology community has been much less than expected. And ontologies and ontological techniques appear to be of marginal use in Big Data and its applications.
Data Mining, Intrusion Detection, Information Assurance, and Data Networks Security 2007, 2007
Blogs represent an important new arena for knowledge discovery in open source intelligence gather... more Blogs represent an important new arena for knowledge discovery in open source intelligence gathering. Bloggers are a vast network of human (and sometimes non-human) information sources monitoring important local and global events, and other blogs, for items of interest upon which they comment. Increasingly, issues erupt from the blog world and into the real world. In order to monitor blogging about important events, we must develop models and metrics that represent blogs correctly. The structure of blogs requires new techniques for evaluating such metrics as the relevance, specificity, credibility and timeliness of blog entries. Techniques that have been developed for standard information retrieval purposes (e.g. Google's PageRank) are suboptimal when applied to blogs because of their high degree of exophoricity, quotation, brevity, and rapidity of update. In this paper, we offer new metrics related for blog entry relevance, specificity, timeliness and credibility that we are implementing in a blog search and analysis tool for international blogs. This tools utilizes new blog-specific metrics and techniques for extracting the necessary information from blog entries automatically, using some shallow natural language processing techniques supported by background knowledge captured in domain-specific ontologies.
ACM SIGMOD Record, 1994
Evaluating database system performance often requires generating synthetic databases - ones havin... more Evaluating database system performance often requires generating synthetic databases - ones having certain statistical properties but filled with dummy information. When evaluating different database designs, it is often necessary to generate several databases and evaluate each design. As database sizes grow to terabytes, generation often takes longer than evaluation. This paper presents several database generation techniques. In particular it discusses:
The blogosphere provides a novel window into public opinion, but its dynamic nature makes it an e... more The blogosphere provides a novel window into public opinion, but its dynamic nature makes it an elusive medium to analyze and interpret in the aggregate, where it is most informative. We are developing new technology employing ontologies to solve this problem by fusing the signals of the blogosphere and zeroing in on issues that are most likely to migrate offline, enabling analysts to anticipate the threats or opportunities they represent.