In the study, two methods for recommending application software were implemented and evaluated based on their ability to recommend alternative applications with related functionality to the one that a user is currently browsing. One method was based on Term Frequency–Inverse Document Frequency (TF-IDF) and the other was based on Latent Semantic Indexing (LSI). The dataset used was a set of 2501...

A new technique for measuring liquid-level utilizing wedge wave is presented and demonstrated through FEM simulation and a corresponding experiment. The velocities of wedge waves in the air and the water, and the sensitivities for the measurement, are compared with the simulation and the results obtained in the experiments. Combining the simulation and the measurement theory, it is verified tha...

One of the challenges facing intermodal integration is that the planning framework needed for it lacks appropriate measures of level of service that cut across the modes involved and the connections between them. In this study we develop a framework and a set of metrics of level of service in a multimodal context. We propose a conceptual framework in which we identify the various attributes of ...

In most current ground force combat simulations, the operational movements and command intent of forces follow prescribed, inflexible objectives and plans. Because of this limitation, the value of advanced intelligence, surveillance, and reconnaissance (ISR) and high-level fusion is reflected only in better targeting and not in improved operational-level command and control (C2). RAND has devel...

Due to insufficient sample sizes in national surveys, strikingly little is known about issue preferences at the level of Congressional districts in the United States, and existing studies focus only on a single issue dimension. This paper takes a first step toward filling this gap by developing a hierarchical Bayesian model to combine survey and census data to estimate the median of each congre...