| 一种移动对象间方向与距离关系的结合推理方法 |
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| 引用本文： | 董轶群,刘建东,徐文星,王淑鸿.一种移动对象间方向与距离关系的结合推理方法[J].北京石油化工学院学报,2020(1):46-53. |
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| 作者姓名： | 董轶群 刘建东 徐文星 王淑鸿 |
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| 作者单位： | 北京石油化工学院信息工程学院 |
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| 摘 要： | 针对移动空间对象间方向与距离关系的结合推理问题,首先用射线的端点近似表示空间对象,用射线的方向表示空间对象的移动方向;然后利用射线与圆之间位置关系的组合来描述2个空间对象之间的相对移动方向;在此基础上分别研究该位置关系的组合对定性距离变化的约束作用及该位置关系的组合与OPRA2方向关系的对应关系,进而建立起OPRA2方向关系与定性距离变化之间的内在联系。提出一种OPRA2方向关系与定性距离变化的结合推理方法。
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| 关 键 词： | 移动对象 方向关系 距离关系 OPRA2 空间推理 |
An Integrative Method of Reasoning about OPRA2 Direction and Distance Relations of Moving Objects |
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| DONG Yiqun,LIU Jiandong,XU Wenxing,WANG Shuhong.An Integrative Method of Reasoning about OPRA2 Direction and Distance Relations of Moving Objects[J].Journal of Beijing Institute of Petro-Chemical Technology,2020(1):46-53. |
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| Authors: | DONG Yiqun LIU Jiandong XU Wenxing WANG Shuhong |
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| Affiliation: | (Information Engineering Institute,Beijing Institute of Petrochemical Technology,Beijing 102617,China) |
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| Abstract: | Integrative representing and reasoning about direction and distance relations between moving objects have been a research hotspot of artificial intelligence in recent years.Firstly,the relative moving direction between two spatial objects is described by a combination of the position relations between the corresponding ray and the circle.Secondly,the restrictions of the combinations on the qualitative distance changes,and the corresponding relationship between the combinations and oriented point algebra with granularity of 2(OPRA2)are studied respectively.And then the connection between the OPRA2 direction relations and the qualitative distance changes is established.Finally,an approach to reasoning about basic OPRA2 direction relations and qualitative distance changes is presented. |
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| Keywords: | moving objects direction relations distance relations OPRA2 spatial reasoning |
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