针对自主驾驶的多模态感知参数化决策
Abstract—Autonomous driving is an emerging technology that
has advanced rapidly over the last decade. Modern transportation
is expected to benefit greatly from a wise decision-making
framework of autonomous vehicles, including the improvement of
mobility and the minimization of risks and travel time. However,
existing methods either ignore the complexity of environments
only fitting straight roads, or ignore the impact on surrounding
vehicles during optimization phases, leading to weak environmental adaptability and incomplete optimization objectives. To
address these limitations, we propose a pArameterized decisionmaking framework with mUlti-modal percepTiOn based on deep
reinforcement learning, called AUTO. We conduct a comprehensive perception to capture the state features of various traffic
participants around the autonomous vehicle, based on which we
design a graph-based model to learn a state representation of
the multi-modal semantic features. To distinguish between lanefollowing and lane-changing, we decompose an action of the
autonomous vehicle into a parameterized action structure that
first decides whether to change lanes and then computes an exact
action to execute. A hybrid reward function takes into account
aspects of safety, traffic efficiency, passenger comfort, and impact
to guide the framework to generate optimal actions. In addition,
we design a regularization term and a multi-worker paradigm to
enhance the training. Extensive experiments offer evidence that
AUTO can advance state-of-the-art in terms of both macroscopic
and microscopic effectiveness.
Index Terms—Decision-making, Autonomous Vehicle, Reinforcement Learning
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