In this paper, we formulate the optimal channel access of secondary user system in cognitive radio networks as the total reward maximization by Partially Observable Markov Decision Processes (POMDPs). Match Ability is proposed that takes allowable channel transmission rate and bit-error-rate (BER) required by receiving end into account. A heuristic greedy algorithm for channel access is propose...

Background: Since tumors located in thorax region of body mainly move due to respiration, in the modern radiotherapy, there have been many attempts such as; external markers, strain gage and spirometer represent for monitoring patients’ breathing signal. With the advent of fluoroscopy technique, indirect methods were proposed as an alternative approach to extract patients’ breathing signals...

Dental features have been widely used for forensic identification purposes. With the large number of cases that need to be investigated by forensic odontologists, a move towards computer-aided dental identification systems is necessary. We propse an automated scoring and ranking method that can be used to augment other text-based methods such as WinID. Given a postmortem (PM) radiograph with a ...

Tracking highly articulated 3-D objects such as human hands with an uncalibrated camera is not an easy task. In addition to changes in position, such objects change their shape and appearance with time. We present a robust tracker for such cases which works well in spite of cases of other similar moving objects, and background clutter. Our hand gesture analysis system is based on such a tracker...

This paper presents an appearance-based model to address the human re-identification problem. Human reidentification is an important and still unsolved task in computer vision. Re-identification refers to the problem of establishing correspondence among various observations of the same subject viewed at different time instances in different camera positions. It can also be defined as the proces...

Although many methods perform well in single camera tracking, multi-camera tracking remains a challenging problem with less attention. DukeMTMC is a large-scale, well-annotated multi-camera tracking benchmark which makes great progress in this field. This report is dedicated to briefly introduce our method on DukeMTMC and show that simple hierarchical clustering with well-trained person re-iden...

The classical mean-variance investment model is simple, elegant, and popular. As such, it is also subject to criticisms. One unsatisfactory feature of the model is that variance treats the upside and downside equally as risks. In this regard, the downside Lower Partial Moments (LPM) are more attractive as alternative risk measures, since they only penalize the downside. In the meanwhile, consid...

This paper describes a new binocular tracking method using Log Polar Mapping (LPM) which approximately represents the mapping of the retina into the visual cortex in primate vision. Using LPM makes it possible not only to obtain both a high central resolution and a wide eld of view, but also to signi cantly reduce processing image data. In this paper, LPM is performed in software by lookup tabl...

The reduplication in Kor. sālsal and sălɨlɨ ‘gently’ presents interesting phonological problems in 1) what should be the underlying base, *sal or salɨ? and 2) how the length alternation should be explained. In this paper I first present a serial analysis in which these examples are explained as cases of overand under-application, and then examine how it compares with a similar analysis in recen...