公开(公告)号：US12174628B2

公开(公告)日：2024-12-24

申请号：US16328202

申请日：2017-08-25

Applicant: Purdue Research Foundation

Inventor： Scott Alan Bronikowski ,  Daniel Paul Barrett ,  Haonan Yu ,  Jeffrey Mark Siskind

IPC: G05D1/00 ,  B60W30/10 ,  B60W50/08 ,  B60W50/10 ,  G05D1/02 ,  G05D1/10

Abstract: A system for directing the motion of a vehicle, comprising receiving commands in natural language using a processor, the commands specifying a relative path to be taken by the vehicle with respect to other objects in the environment; and determining an absolute path for the vehicle to follow based on the relative path using the processor, the absolute path comprising a series of coordinates in the environment; and directing the vehicle along the absolute path. Also provided is a system for training a lexicon of a natural language processing system, comprising receiving a data set containing a corpus of absolute paths driven by a vehicle annotated with natural language descriptions of the absolute paths using a processor, and determining parameters of the lexicon based on the data set.

公开(公告)号：US20250123626A1

公开(公告)日：2025-04-17

申请号：US18991129

申请日：2024-12-20

Applicant: Purdue Research Foundation

Inventor： Jeffrey Mark Siskind ,  Haonan Yu ,  Scott Alan Bronikowski ,  Daniel Paul Barrett

IPC: G05D1/00 ,  B60W30/10 ,  B60W50/08 ,  B60W50/10 ,  G05D1/222 ,  G05D1/227 ,  G05D1/249 ,  G05D1/46 ,  G06N3/08

Abstract: Training a lexicon of a natural language processing system may include receiving a data set containing a corpus of absolute paths driven by a vehicle annotated with natural language descriptions of said absolute paths and determining parameters of the lexicon based on the data set. The degree to which a path taken by the vehicle satisfies the annotated description may be specified by a scoring function. The lexicon may be determined by finding the lexicon parameters that optimize the degree to which the paths taken by the vehicle satisfy the annotated descriptions. Objects in the environment of the same class are disambiguated by specifying their position relative to other objects using prepositions.