The ability to act and respond to exogenous events in dynamic environments is crucial for robust autonomy. In dynamic environments, external changes may occur that prevent an agent from reaching its goal(s). I am interested in the design of reasoning and planning components operating in environments that undergo changes in real time. My goal is to develop a framework for fully integrated planni...

We have been developing an architecture for reasoning with multiple sensors distributed on a computer network, linking them with analysis modules, and reasoning with the results to combine evidence of possible intrusion for display to the user. The architecture, called MAITA, consists of monitors distributed across machines and linked together under control of the user and supported by a “monit...

We consider the enforcement powers of program monitors, which intercept security-sensitive actions of a target application at run time and take remedial steps whenever the target attempts to execute a potentially dangerous action. A common belief in the security community is that program monitors, regardless of the remedial steps available to them when detecting violations, can only enforce saf...

BACKGROUND REDD+ programs rely on accurate forest carbon monitoring. Several REDD+ projects have recently shown that local communities can monitor above ground biomass as well as external professionals, but at lower costs. However, the precision and accuracy of carbon monitoring conducted by local communities have rarely been assessed in the tropics. The aim of this study was to investigate dif...

Since the 1980s, accelerometer-based activity monitors have been used by researchers to quantify physical activity. The technology of these monitors has continuously evolved. For example, changes have been made to monitor hardware (type of sensor (e.g., piezoelectric, piezoresistive, capacitive)) and output format (counts vs raw signal). Commonly used activity monitors belong to the ActiGraph a...

Twenty-two yellow tree monitors (Varanus bengalensis) were trapped and transported from 5 provinces, namely Lampang, Phitsanulok, Kamphaeng Phet, Tak and Prachin Buri to look for the infective larvae stage of Angiostrongylus cantonensis. In 4 provinces all of the yellow tree monitors were infected with the infective stage larvae of A. cantonensis altogether. Twenty-one of the 22 yellow tree mon...

Monitoring process let self-adapting systems to watch their current state and therefore making the needed changes. Deploying monitors into a system involves adding the necessary statements into the source code and the possibility to impact the system’s performance during execution, also if monitors use reflection mechanisms. This paper features a scheme to deploy monitors on compiled systems, r...

We propose a rigorous comparison of information flow monitors with respect to two dimensions: soundness and transparency. For soundness, we notice that the standard information flow security definition called Termination-Insensitive Noninterference (TINI) allows the presence of termination channels, however it does not describe whether the termination channel was present in the original program...

Reduced physical activity is an important feature of Chronic Obstructive Pulmonary Disease (COPD). Various activity monitors are available but their validity is poorly established. The aim was to evaluate the validity of six monitors in patients with COPD. We hypothesized triaxial monitors to be more valid compared to uniaxial monitors. Thirty-nine patients (age 68±7 years, FEV(1) 54±18%predict...

Consumer-level activity monitors, such as Fitbit and Misfit devices, are a popular and low-cost means of measuring physical activity. This study aims to compare the accuracy of step counts from two consumer-level activity monitors against two reference devices in healthy, community-dwelling older adults in free-living conditions. Twenty-five older adults (aged 65-84) simultaneously wore 5 devic...