We study the problem of learning a generalizable action policy for an intelligent agent to actively approach an object of interest in indoor environment solely from its visual inputs. While scene-driven or recognition-driven visual navigation has been widely studied, prior efforts suffer severely from the limited generalization capability. In this paper, we first argue the object searching task is environment dependent while the approaching ability is general. To learn a generalizable approaching policy, we present a novel solution dubbed as GAPLE which adopts two channels of visual features: depth and semantic segmentation, as the inputs to the policy learning module. The empirical studies conducted on the House3D dataset as well as on a physical platform in a real world scenario validate our hypothesis, and we further provide in-depth qualitative analysis.

探讨一种可学习到的通用行动策略用于室内环境中仅通过视觉输入主动接近感兴趣的物体，提出了一种基于深度和语义分割作为策略学习模块输入的新解决方案GAPLE，通过实证研究在House3D数据集上和真实世界情境中的物理平台上进行验证并提供了深入的定性分析。

GAPLE: 室内环境中机器人物体搜索的通用接近策略学习