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The majority of nasopharyngeal carcinoma (NPC) patients present at locally advanced stage. The poor prognosis has led to increasing interests in exploring the use of chemotherapy (CT). Intergroup-0099 trial was the first randomized trial comparing concurrent chemoradiotherapy (CCRT) with radiotherapy (RT) alone. Its outcome established the treatment(More)
Testing the fractionally integrated order of seasonal and non-seasonal unit roots is quite important for the economic and financial time series modelling. In this paper, Robinson test (1994) is applied to various well-known long memory models. Via Monte Carlo experiments, we study and compare the performances of this test using several sample sizes.
Long memory processes have been extensively studied over the past decades. When dealing with the financial and economic data, season-ality and time-varying long-range dependence can often be observed and thus some kind of non-stationarity can exist inside financial data sets. To take into account this kind of phenomena, we propose a new class of stochastic(More)
For the difficulties of the high dimensions and the complex environment in the video surveillance, a face detection method based on Locality Preserving Projections (LPP) incorporated with Adaboost is proposed. The LPP based features are extracted to reveal the local manifold structure of the faces using linear method. Then, the weak classifiers are(More)
Patients with nasopharyngeal carcinoma undergoing intensity-modulated radiation therapy may experience significant anatomic changes throughout the entire treatment course, and adaptive radiation therapy may be necessary to maintain optimal dose delivered both to the targets and to the critical structures. The timing of adaptive radiation therapy, however,(More)
Intrathoracic endotracheal metastasis from a very distant site is extremely rare. We report the first case of such a disease in a 68-year-old man with nasopharyngeal carcinoma who presented with a cough and hemoptysis 34 months after finishing radiotherapy. Prior to tracheal metastasis, he developed a solitary metastasis in the lung and underwent(More)
In this paper, nine memory parameter estimation procedures for the fractionally integrated I(d) process, semi-parametric and paramet-ric, which prevail in the existing literature are reviewed; through the simulation study under the ARFIMA(p, d, q) setting we cast a light on the finite sample performance of these estimation procedures for the non-stationary(More)