学　术

　　为搭建我校博士后之间的学术交流平台，促进学术水平提升，学校博士后管理办公室组织开展博士后学术沙龙活动。本次沙龙由我校博士后郑德生、刘伟和周军分享其研究成果，诚挚邀请感兴趣的师生参加。

   一、时　间：2017年6月8日（周四）14:30

   二、地　点：沙河校区光电学院409会议室

   三、主办单位：电子科技大学博士后管理办公室

   四、承办单位：光电信息学院  电子科技大学博士后联谊会

   五、活动安排：

   报告一：

　　（1）主　题：A Swarm Recommendation Algorithm for Intelligent Tourism

　　（2）主讲人：郑德生　信息与软件工程学院博士后

　　（3）交流内容：

　　In the time of big data, the rapid development of cross media properties and production (eg. Intelligent tourism) produce more information. Therefore, users in the huge amount of information have a personalized service demand. The demand for user groups, based on the existing group recommended algorithm, use the respective strategy polymerization method to build the model group, and provide a new group recommendation algorithm based on social network analysis. Taking the cross media intelligent travel as the focus of analysis and experiments, the interaction factors among the members in the actual situation are taken into account as optimized swarm model. At the same time, through crawling technology, we get the relevant data of a tourism website, and use the standard error to verify the accuracy in the experiment, the effectiveness and practicability of the algorithm.

　　（4）主讲人简介：

　　Zheng Desheng, male, member of the Communist Party of China, the postdoctoral University of Electronic Science and technology, Sichuan Province Institute of computer software branch vice chairman, published SCI/EI papers 20 papers published several books and get some software copyright. Visited University of California at Los Angeles and the University of California at Irvine and worked in product manager of American Apache-da Ltd. and HUAWEI Technologies Co. Ltd. IT storage architecture and Design Department as architect.

　　报告二：

　　（1）主　题：一种面向目标基于地震照明的加密组合震源设计（A target-oriented and seismic illumination based infilling source array optimization method）

　　（2）主讲人：刘伟　光电信息学院博士后

　　（3）交流内容：

　　报告将主要介绍一种能够适用于陆上复杂地区（西部山区、黄土高原、山前带地区）地震勘探的观测系统设计方法，即面向地质目标基于波动方程地震照明的加密组合震源设计。报告分三个部分进行展开，首先是背景知识介绍，包括地震勘探中的震源组合技术、加密炮技术和地震波传播的互易原理；其次是方法原理讲解，包括方法背景、基本原理和技术路线，主要展现研究思路；最后是效果展示。

　　（4）主讲人简介：

　　刘伟博士分别在2010年和2015年获得了西南石油大学勘查技术与工程的工程学士学位和地质资源与地质工程的工学博士学位。现为电子科技大学光电信息学院的全职博士后（一级学科：信息与通信工程），他的博士后研究课题是频率域全波形反演方法研究。此外，他的主要研究方向还有地震波正演和照明、地震属性分析、地震观测系统优化设计和信号处理。

　　报告三：

　　（1）主　题：Research on Inversion Method of Magnetotelluric Static-shifted Data

　　（2）主讲人：周军　资源与环境学院博士后

　　（3）交流内容：

　　In Magnetotelluric sounding(MT) data processing, the static shift correction is one of the most important steps. Due to the complexity of the distribution of the shallow inhomogeneous electrical body, it is difficult to estimate the shift value of measured data. For this problem, we put forward on the basis of the inversion model for static shift estimation, and reconstructed the initial model for new inversion. The estimation method is used to calculate the theoretical simulation data and measured data. The calculation results show that static shift estimation results from static shift speed calculating of the proposed method are more objective and accurate. It is applied in inversion model constraint, based on the above model, for the original data inversion, which can be a good approximation to the real electrical structure of the model.

　　（4）主讲人简介：

　　J Zhou received the Ph.D. degree from the Chengdu University of Technology in 2016. He currently works as a Postdoctoral Fellow in the School of Resources and Environment of UESTC. Dr. Zhou is working in the field of geophysical exploration. His main research interests include forward modeling theory, inversion algorithm and application strategy of electromagnetic prospecting.

　　　　　　　　　　　　　　　　　电子科技大学博士后管理办公室

　　　　　　　　　　　　　　　　　　　　　2017年6月5日