Ruixiang Zhang

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Despite the successes in capturing continuous distributions, the application of generative ad-versarial networks (GANs) to discrete settings, like natural language tasks, is rather restricted. The fundamental reason is the difficulty of back-propagation through discrete random variables combined with the inherent instability of the GAN training objective.(More)
BACKGROUND AND OBJECTIVES Only few randomized trials or comparative studies with large number of patients have been reported on the outcomes of thoracoscopic and laparoscopic esophagectomy (TLE) with cervical anastomosis and open 3-field esophagectomy (OE) for patients with esophageal cancer. The objective of this study is to compare the safety,(More)
–The evolution of a dynamic walking gait of biped robot is presented in this paper. The gait is generated for a biped robot to walk on flat ground and climb up stairs. For the trajectory based gait generation, various parameters satisfy ZMP criterion and can realize continuous walking. The evolutionary algorithm is used to choose the parameter combinations.(More)
This paper describes an integrated quasi‐ autonomous four‐limbed robot, named Capuchin, which is equipped with appropriate sensing, planning and control capabilities to " free‐climb " vertical terrain. Unlike aid climbing that takes advantage of special tools and/or engineered terrain features, free climbing only relies on friction at the contacts between(More)
–This paper presents the research work on a small size humanoid robot: RoboSapien. The objective of this project is to build a platform for the study of dynamic walking and the artificial intelligence tools. In all, the robot has 17 degrees of freedom and each joint is driven by a DC servo motor. Two DSPs are utilized in the control system. In this paper,(More)
The effect of neoadjuvant chemotherapy on the survival of patients with thoracic esophageal squamous cell carcinomas (ESCCs) remains controversial. The optimal management strategy for resectable ESCCs varies regionally based on local randomized controlled trials. A systematic review and meta-analysis was conducted to re-evaluate this controversial issue.A(More)
OBJECTIVE To investigate the feasibility of no nasogastric intubation and early oral feeding at will after thoracolaparoscopic esophagectomy for patients with esophageal cancer. METHODS Between January 2013 and January 2014, the feasibility of no nasogastric intubation and early oral feeding at postoperative day(POD) 1 after thoracolaparoscopic(More)
INTRODUCTION The most efficient treatment of such anastomotic leaks after esophagectomy remains controversial. Our objective was to evaluate the effectiveness of perianastomotic drains in anastomotic leaks. METHODS Five patients with intrathoracic anastomotic leaks had placement of perianastomotic drains through remanet esophagus and fitula into infected(More)