A problem which has recently attracted research attention is that of estimating the distribution of flow sizes in internet traffic. On high traffic links it is sometimes impossible to record every packet. Researchers have approached the problem of estimating flow lengths from sampled packet data in two separate ways. Firstly, different sampling methodologies can be tried to more accurately meas...

The computation of optical ow from image derivatives is biased in regions of non uniform gradient distributions. A least-squares or total least squares approach to computing optic ow from image derivatives even in regions of consistent ow can lead to a systematic bias dependent upon the direction of the optic ow, the distribution of the gradient directions, and the distribution of the image noi...

We consider the problem of map learning while maintaining ground-truth pose estimates. Map learning is important in tasks that requir ea model of the envir onmentor some of its featur es. As a robot collects data, uncertainty about its position accumulates and corrupts its knowledge of the positions from which observations are taken. We addr essthis problem by employing cooperative localization...

This paper outlines an appr oachand experimental results for Synthetic Aperture Radar (SAR) object recognition using the MSTAR data. With SAR scattering c enter locations and magnitudes as features, the invariance of these featur esis shown with obje ct articulation (e.g., rotation of a tank turr et) and with external con guration variants. This scatter er location and magnitude quasi-invarianc...

Last year a second-generation SSRL-type thermionic cathode rf gun was installed in the Advanced Photon Source (APS) linac. This gun (referred to as “gun2”) has been successfully commissioned and now serves as the main injector for the APS linac, essentially replacing the Koontz-type DC gun. To help ensure injector availability, particularly with the advent of top-up mode operation at the APS, a...

In the course of statistical processing traffic flows characteristics data, check for presence anomalous measurements in sampling should be done at very start processing. If are detected, they excluded from an early stage and not taken into considerations further calculations. Numerous criteria have been developed to detect outliers, their effectiveness depends on sample size. practice, technic...