62天的远洋征程

2013年8月11日,中国海事旗舰船"海巡01"缓缓靠泊上海国客中心码头,圆满结束了对澳大利亚等四国的访问。这是一次训练之旅、一次交流之旅,对我国实现多边"互联互通、深化合作、扩大交流、增进友好"的目标,有着重要意义。

Marine Accident Analysis with GIS

In this study, marine casualties which are recorded Global Integrated Shipping Information System （GISIS） in 2007-2011, result in death, injury, economic loss and environmental pollution are discussed. The studied types of ships are container, bulk dry, general cargo, roro, ropax, passenger and tankers. The information contained in GISIS system is textual format and it is difficult to systematically analyze this information. For this reason, by creating a new data base, which is Microsoft Excel-based, ship accidents are classified according to name, flag state and type of ship, type, size and coordinates of the accidents that are evaluated by entering the Geographical Information System（GIS）. In the study, all marine areas having been separated into ranges in ArcGIS 10 program, the marine areas with intensive marine accidents have been determined and marine accident chart has been created. As a result of the study, high risk marine areas are Strait of Dover and Hamburg in the North Europe, Belfast Shores in Ireland, the seas surrounding Great Belt, Kattegat and Copenhagen in Baltic Sea, In far east, Kanmon Strait, Urage Channel and Bungo Strait in Japan, Shanghai, Ningbo and Hong Kong in China.

海事适任评估中主观题自动评分技术研究

【目的】针对海事领域适任评估中主观题评分工作量大,易受阅卷人主观意向影响导致评分不客观的问题,构建一套针对海事领域的主观题自动评分系统。【方法】首先,采用依存句法分析加权TextRank算法提取关键词;其次,融合句向量、核心词、句法成分及依存结构判断学生答案和标准答案的相似度;然后,建立海事专用否定词集判断学生答案与标准答案的语义对立关系;最后,给出较为客观的评分。【结果】通过多组不同主观题进行测试,实验结果表明系统评分与人工阅卷的平均分差为0.21,偏差率为4.20%。【局限】对较长且结构复杂的语句处理效果不够理想。【结论】提出的主观题自动评分算法在海事适任评估主观题阅卷中总体效果较好。