Jan W. Buzydlowski

Learn More
The Radiation Therapy Oncology Group (RTOG) initiated a phase I/II study of intraoperative radiotherapy (IORT) in advanced or recurrent rectal cancer to assess therapeutic efficacy, toxicity, and establish quality control guidelines prior to beginning a phase III trial. From October 1985 through December 1989, 87 patients with histologically proven(More)
Author searching is traditionally based on the matching of name strings. Special characteristics of authors as personal names and subject indicators are not considered. This makes it difficult to identify a set of related authors or to group authors by subjects in retrieval systems. In this paper, we describe the design and implementation of a prototype(More)
In this paper we examine the relationship of term co-occurrence analysis and a user interface for digital libraries. We describe a current working implementation of a dynamic visual information retrieval system based on co-cited author maps that assists in browsing and retrieving records from a large-scale database, 10 years of the Arts & Humanities(More)
We apply a version of our web-based literature-mapping system to PNAS for 1971-2002, as indexed by the National Library of Medicine and the Institute for Scientific Information. Given a single input term from a user, a medical subject heading, a cocited author, or a cocited journal, PNASLINK rapidly displays views in which that term and the other 24 terms(More)
likely to have learned about it through reading as through traceable ties with the originators. The upshot, however, is that ACA has been vetted by many independent observers. Their reports are generally encouraging; ACA tends to deliver intelligible results with high face validity. Using data from the Arts & Humanities Citation Index for 1988–1997, we are(More)
PURPOSE This study was conducted to see what fraction of prostate cancer patients with biopsy-proven nodes are free of cancer 10 years after radiation treatment. METHODS AND MATERIALS RTOG protocol #75-06 included 90 patients with biopsy-proven pelvic nodal involvement treated with radiation. They have been continuously follow-up since treatment. When(More)
Although data warehouses are viewed as organized, summarized repositories of time-oriented data conceptually, the physical implementation determines the speed, efficiency, scalability, and extensibility of this view. Two major physical implementations exist today: data warehouses built upon relational database management systems (ROLAP) and warehouses built(More)
PURPOSE RTOG 83-07 is a Phase II randomized protocol designed to compare the efficacy and toxicity of Megestrol vs. Diethylstilbestrol (DES) used as cytoreductive agents prior to and during radiotherapy. The end points of this study include tumor clearance rate, effect on serum testosterone, loco-regional control, disease-free interval, and survival. (More)
This paper reports on conceptual development in the areas of database mining, and knowledge discovery in databases (KDD). Our e®orts have also led to a prototype implementation, called MOTC, for exploring hypothesis space in large and complex data sets. Our KDD conceptual development rests on two main principles. First, we use the crosstab representation(More)