公开(公告)号：US11194860B2

公开(公告)日：2021-12-07

申请号：US15207445

申请日：2016-07-11

申请人： Baidu USA, LLC

发明人： Erheng Zhong ,  Chaochun Liu ,  Yusheng Xie ,  Nan Du ,  Hongliang Fei ,  Yi Zhen ,  Yu Cao ,  Richard Chun Ching Wang ,  Dawen Zhou ,  Wei Fan

IPC分类号： G06F16/901 ,  G16H50/70 ,  G16H10/20 ,  G16H50/30 ,  G16H50/20

摘要： Systems and methods are disclosed for question generation to obtain more related medical information based on observed symptoms from a patient. In embodiments, possible diseases associated with the observed symptoms are generated by querying a knowledge graph. In embodiments, candidate symptoms associated with the possible diseases are also identified and are combined with the observed symptoms to obtain combined symptom sets. In embodiments, discriminative scores for the candidate symptom sets are determined and candidate symptoms with top discriminative scores are selected. In embodiments, these selected candidate symptoms may be checked for conflicts with observed symptoms and removed from further consideration if a conflict exists. In embodiments, one or more questions may be generated based on the remaining selected candidate systems to aid in collecting information about the patient. In embodiments, the process may be repeated with the updated observed symptoms.

公开(公告)号：US10372743B2

公开(公告)日：2019-08-06

申请号：US15215492

申请日：2016-07-20

申请人： Baidu USA, LLC

发明人： Shulong Tan ,  Hongliang Fei ,  Yi Zhen ,  Yu Cao ,  Bocong Liu ,  Chaochun Liu ,  Richard Chun Ching Wang ,  Dawen Zhou ,  Wei Fan

IPC分类号： G06F17/30 ,  G06F16/35 ,  G06F16/33

摘要： Systems and methods are disclosed to identify entities that have a similar meaning, and may, in embodiments, be grouped into entity groups for knowledge base construction. In embodiments, the entity relations of similarity or non-similarity for an entity pair are predicted as a binary relationship. In embodiments, the prediction may be based upon similarity score between the entities and the entity features, which features are constructed using an entity feature or representation model. In embodiments, the prediction may be an iterative process involving minimum human checking and existing knowledge update. In embodiments, one or more entity groups are formed using graph search from the predicted entity pairs. In embodiments, a group centroid entity may be selected to represent each group based on one or more factors, such as its generality or popularity.

公开(公告)号：US20180025282A1

公开(公告)日：2018-01-25

申请号：US15215513

申请日：2016-07-20

申请人： Baidu USA, LLC

发明人： Yusheng Xie ,  Nan Du ,  Jing Zhai ,  Weicheng Zhu ,  Dawen Zhou ,  Wei Fan

IPC分类号： G06N7/00 ,  G06N99/00

CPC分类号： G06N7/005

摘要： Systems and methods are disclosed for question generation to infer the most probable cause from the observable outcome and known Noisy-OR causal relations. In embodiments, the outcomes are sorted by indices according to an order including but not limited to the outcomes' natural frequency order, expert-labeled order, machine-learning derived order, etc. According to their assigned indices, in embodiments, observed outcomes with lower indices are assigned for exact inference while observed outcomes with higher indices are assigned for variational inference. In embodiments, results of exact inference and variational inference are combined to predict the most probable cause. The unique combination of exact inference and variational inference according to outcome indices makes the probable cause inferring process faster.

公开(公告)号：US20180025121A1

公开(公告)日：2018-01-25

申请号：US15215393

申请日：2016-07-20

申请人： Baidu USA, LLC

发明人： Hongliang Fei ,  Shulong Tan ,  Yi Zhen ,  Erheng Zhong ,  Chaochun Liu ,  Dawen Zhou ,  Wei Fan

IPC分类号： G06F19/00

CPC分类号： G06F19/3418 ,  G16H10/60 ,  G16H15/00 ,  G16H50/20 ,  G16H50/50 ,  G16H50/70 ,  G16H70/20

摘要： Systems and methods are disclosed provide improved automated extraction of medical-related information. In embodiments, finer-grained medical-related data, such as medical entities, including symptoms, diseases, dimensions, and temporal information, can be extracted. In embodiments, by extracted finer level medical-related information from an input statement and generating visual displays of that information, a medical professional can readily see relevant medical information that provides medical entities and associated dimension information, as well as evolving history.

公开(公告)号：US10650318B2

公开(公告)日：2020-05-12

申请号：US15215513

申请日：2016-07-20

申请人： Baidu USA, LLC

发明人： Yusheng Xie ,  Nan Du ,  Jing Zhai ,  Weicheng Zhu ,  Dawen Zhou ,  Wei Fan

IPC分类号： G06N7/00

摘要： Systems and methods are disclosed for question generation to infer the most probable cause from the observable outcome and known Noisy-OR causal relations. In embodiments, the outcomes are sorted by indices according to an order including but not limited to the outcomes' natural frequency order, expert-labeled order, machine-learning derived order, etc. According to their assigned indices, in embodiments, observed outcomes with lower indices are assigned for exact inference while observed outcomes with higher indices are assigned for variational inference. In embodiments, results of exact inference and variational inference are combined to predict the most probable cause. The unique combination of exact inference and variational inference according to outcome indices makes the probable cause inferring process faster.

公开(公告)号：US20180025008A1

公开(公告)日：2018-01-25

申请号：US15215492

申请日：2016-07-20

申请人： Baidu USA, LLC

发明人： Shulong Tan ,  Hongliang Fei ,  Yi Zhen ,  Yu Cao ,  Bocong Liu ,  Chaochun Liu ,  Richard Chun Ching Wang ,  Dawen Zhou ,  Wei Fan

IPC分类号： G06F17/30

CPC分类号： G06F16/355 ,  G06F16/3331

摘要： Systems and methods are disclosed to identify entities that have a similar meaning, and may, in embodiments, be grouped into entity groups for knowledge base construction. In embodiments, the entity relations of similarity or non-similarity for an entity pair are predicted as a binary relationship. In embodiments, the prediction may be based upon similarity score between the entities and the entity features, which features are constructed using an entity feature or representation model. In embodiments, the prediction may be an iterative process involving minimum human checking and existing knowledge update. In embodiments, one or more entity groups are formed using graph search from the predicted entity pairs. In embodiments, a group centroid entity may be selected to represent each group based on one or more factors, such as its generality or popularity.

公开(公告)号：US20180011979A1

公开(公告)日：2018-01-11

申请号：US15207445

申请日：2016-07-11

申请人： Baidu USA, LLC

发明人： Erheng Zhong ,  Chaochun Liu ,  Yusheng Xie ,  Nan Du ,  Hongliang Fei ,  Yi Zhen ,  Yu Cao ,  Richard Chun Ching Wang ,  Dawen Zhou ,  Wei Fan

IPC分类号： G06F19/00 ,  G06F17/30

CPC分类号： G06F16/9024 ,  G16H10/20 ,  G16H50/20 ,  G16H50/30 ,  G16H50/70

摘要： Systems and methods are disclosed for question generation to obtain more related medical information based on observed symptoms from a patient. In embodiments, possible diseases associated with the observed symptoms are generated by querying a knowledge graph. In embodiments, candidate symptoms associated with the possible diseases are also identified and are combined with the observed symptoms to obtain combined symptom sets. In embodiments, discriminative scores for the candidate symptom sets are determined and candidate symptoms with top discriminative scores are selected. In embodiments, these selected candidate symptoms may be checked for conflicts with observed symptoms and removed from further consideration if a conflict exists. In embodiments, one or more questions may be generated based on the remaining selected candidate systems to aid in collecting information about the patient. In embodiments, the process may be repeated with the updated observed symptoms.