Learning real-time search, which interleaves planning and acting, allows agents to learn from multiple trials and respond quickly. Such algorithms require no prior knowledge of the environment and can be deployed without pre-processing. We introduce Prioritized-LRTA* (P-LRTA*), a learning real-time search algorithm based on Prioritized Sweeping. P-LRTA*… (More)
Perimeters and pattern databases are two similar memory-based techniques used in single-agent search problems. We present partial pattern databases, which unify the two approaches into a single memory-based heuristic table. Our approach allows the use of any abstraction level. We achieve a threefold reduction in the average number of nodes generated on the… (More)
In this report we describe a uniquely decentralized event-based system for online and offline tracking, analysis, and control of electronic document transactions in order to detect suspected insider misuse of those documents. Our system is focused on the problem of tracking and analyzing user's actions with respect to documents. On the user side, the… (More)
In vitro and in vivo studies implicate occludin in the regulation of paracellular macromolecular flux at steady state and in response to tumor necrosis factor (TNF). To define the roles of occludin in these processes, we established intestinal epithelia with stable occludin knockdown. Knockdown monolayers had markedly enhanced tight junction permeability to… (More)
Individuals (e.g., the self-employed and those earning casual wages such as tips) with income not reported to the tax authority by a third party may be less likely to be detected evading taxes relative to the case in which their income is subject to third-party reporting. However, their compliance responses – to changes in the proportion of income that is… (More)
W hen radars first came into operation during the late 1930s, they were not expected to detect targets much beyond the geometrical horizon. These early radars, operating at a wavelength of 13 m, generally met expectations. As new radars were rapidly developed, operating at shorter and shorter wavelengths for better target detection, observations of… (More)
We present a prototype of AICronus, an argumentation system that automates a challenging reasoning process used by experts in cosmogenic isotope dating. The architecture of the system is described and preliminary results are discussed.
BACKGROUND Detecting serum antibody against inhaled antigens is an important diagnostic adjunct for hypersensitivity pneumonitis (HP). We sought to validate a quantitative fluorimetric assay testing serum from bird fanciers. METHODS Antibody activity was assessed in bird fanciers and control subjects using various avian antigens and serological methods,… (More)
Smokers with asthma have poor symptom control, accelerated decline in lung function and an attenuated response to corticosteroids compared to nonsmokers with asthma . There is an unmet need for alternative or additional drugs for smokers with asthma who are unable to stop smoking . Macrolide antibiotics have anti-inflammatory activity  and in… (More)
Please note: not all these resources are available in the Dudley Knox Library but they can be requested through Interlibrary Loan.