知识推理是补全知识图谱的重要方法,旨在根据图谱中已有的知识,推断出未知的事实或关系.针对多数推理方法仍存在没有充分考虑实体对之间的路径信息,且推理效率偏低、可解释性差的问题,提出了将TuckER嵌入和强化学习相结合的知识推理方法...知识推理是补全知识图谱的重要方法,旨在根据图谱中已有的知识,推断出未知的事实或关系.针对多数推理方法仍存在没有充分考虑实体对之间的路径信息,且推理效率偏低、可解释性差的问题,提出了将TuckER嵌入和强化学习相结合的知识推理方法TuckRL(TuckER embedding with reinforcement learning).首先,通过TuckER嵌入将实体和关系映射到低维向量空间,在知识图谱环境中采用策略引导的强化学习算法对路径推理过程进行建模,然后在路径游走进行动作选择时引入动作修剪机制减少无效动作的干扰,并将LSTM作为记忆组件保存智能体历史动作轨迹,促使智能体更准确地选择有效动作,通过与知识图谱的交互完成知识推理.在3个主流大规模数据集上进行了实验,结果表明TuckRL优于现有的大多数推理方法,说明将嵌入和强化学习相结合的方法用于知识推理的有效性.展开更多
This paper concerns the observer-based adaptive control problem of uncertain time-delay switched systems with stuck actuator faults. Under the case where the original controller cannot stabilize the faulty system, mul...This paper concerns the observer-based adaptive control problem of uncertain time-delay switched systems with stuck actuator faults. Under the case where the original controller cannot stabilize the faulty system, multiple adaptive controllers are designed and a suitable switching logic is incorporated to ensure the closed-loop system stability and state tracking. New delay-independent sufficient conditions for asymptotic stability are obtained in terms of linear matrix inequalities based on piecewise Lyapunov stability theory. On the other hand, adaptive laws for on-line updating of some of the controller parameters are also designed to compensate the effect of stuck failures. Finally, simulation results for reference [1] model show that the design is feasible and efficient.展开更多
Purpose:.To evaluate the surgical effect of levator muscle shortening and levator aponeurosis tucking in treating minimal and moderate congenital blepharoptosis.Methods:.Clinical data of 28 patients(40 eyes) diagnosed...Purpose:.To evaluate the surgical effect of levator muscle shortening and levator aponeurosis tucking in treating minimal and moderate congenital blepharoptosis.Methods:.Clinical data of 28 patients(40 eyes) diagnosed with mide and moderate congenital blepharoptosis at our institution were retrospectively analyzed. Postoperative efficacy was evaluated and statistically compared between these two techniques.Results:.During 14 months follow-up,.16 eyes with ptosis undergoing levator muscle shortening were treated,.3 with undercorrection of ptosis and 1 with overcorrection of ptosis.In patients receiving levator aponeurosis tucking,.16 eyes were cured and 4 with undercorrection of ptosis.Conclusion:.Both levator muscle shortening and levator aponeurosis tucking are safe and efficacious for correcting minimal and moderate congenital blepharoptosis.展开更多
目的探讨下颏抗阻力训练(chin tuck against resistance,CTAR)联合吞咽低频电刺激治疗脑卒中(cerebral stroke,CS)后吞咽障碍(dysphagia after actue stroke,DAS)患者的疗效。方法采用配对病例对照研究法选取虞城县人民医院康复科2021年...目的探讨下颏抗阻力训练(chin tuck against resistance,CTAR)联合吞咽低频电刺激治疗脑卒中(cerebral stroke,CS)后吞咽障碍(dysphagia after actue stroke,DAS)患者的疗效。方法采用配对病例对照研究法选取虞城县人民医院康复科2021年1月至2023年9月收治的84例CS后DAS患者进行回顾性研究,按治疗方案不同分为参照组(n=42)、研究组(n=42)。其中采用吞咽低频电刺激治疗的患者设为参照组,采用CTAR联合吞咽低频电刺激治疗的患者设为研究组。比较两组治疗前、治疗4周后吞咽功能障碍分级情况、标准吞咽功能评定量表(SSA)评分、功能性经口舌摄食量表(FOIS)评分、舌骨喉活动度、表面肌电图、吞咽障碍特异性生命质量量表(SWAL-QOL)评分。结果研究组治疗4周后吞咽功能障碍改善情况优于参照组(P<0.05);研究组治疗4周后SSA评分为(24.18±2.12)分,低于参照组(28.79±3.77)分,FOIS评分为(5.68±0.45)分,高于参照组(4.63±0.51)分(P<0.05);研究组治疗4周后舌骨前移、上移活动度分别为(11.47±2.55)mm、(17.38±4.59)mm,高于参照组(8.25±1.06)mm、(14.03±4.56)mm(P<0.05);研究组治疗4周后最大波幅为(725.38±55.02)V,高于参照组(605.98±49.65)V,吞咽时程为(1.11±0.15)s,短于参照组(1.33±0.21)s(P<0.05);研究组治疗4周后SWAL-QOL评分为(125.32±15.32)分,高于参照组(102.54±14.25)分(P<0.05)。结论CTAR联合吞咽低频电刺激治疗CS后DAS患者可有效提高舌骨喉活动度,改善吞咽、摄食功能,促进生活质量提升。展开更多
目的对鼻咽癌放疗后吞咽障碍患者分别实施Shaker训练和下颏抗阻力(chin tuck against resistance,CTAR)训练,分析三种训练对患者的影响。方法选择2017年2月—2019年2月厦门大学附属第一医院收治的84例鼻咽癌内镜手术后化疗患者为研究对...目的对鼻咽癌放疗后吞咽障碍患者分别实施Shaker训练和下颏抗阻力(chin tuck against resistance,CTAR)训练,分析三种训练对患者的影响。方法选择2017年2月—2019年2月厦门大学附属第一医院收治的84例鼻咽癌内镜手术后化疗患者为研究对象,按随机数字表法将患者分为对照组、Shaker组以及CTAR练组,每组各28例。三组均进行常规吞咽训练,Shaker组联合Shaker训练,CTAR组联合CTAR训练。分析三组患者吞咽能力、日常生活质量、康复治疗效果以及并发症情况。结果干预前三组患者电视透视检查(video fluoroscopy swallowing study,VFSS)评级、功能性经口摄食量表(functional oral intake scale,FOIS)评级以及吞咽障碍特异性生活质量量表(swallowing-quality of life,SWAL-QOL)评分比较,差异无统计学意义(P>0.05)。干预后Shaker组和CTAR组患者VFSS评分低于对照组,FOIS和SWAL-QOL评分高于对照组,差异有统计学意义(P<0.05)。Shaker组和CTAR组之间各评分比较,差异无统计学意义(P>0.05)。对照组患者治疗总有效率为71.43%,Shaker组患者治疗总有效率为92.86%,CTAR组患者治疗总有效率为96.43%。对照组的治疗有效率明显低于Shaker组和CTAR组,差异有统计学意义(P<0.05)。Shaker组和CTAR组治疗总有效率比较,差异无统计学意义(P>0.05)。对照组、Shaker组以及CTAR组并发症发生率分别为32.14%、7.14%以及3.57%。对照组明显高于Shaker组和CTAR组,差异有统计学意义(P<0.05);Shaker组与CTAR组比较,差异无统计学意义(P>0.05)。结论Shaker和CTAR训练均能有效缓解鼻咽癌放疗后患者的吞咽障碍症状,提高摄食功能,并发症较少,改善患者预后。展开更多
文摘知识推理是补全知识图谱的重要方法,旨在根据图谱中已有的知识,推断出未知的事实或关系.针对多数推理方法仍存在没有充分考虑实体对之间的路径信息,且推理效率偏低、可解释性差的问题,提出了将TuckER嵌入和强化学习相结合的知识推理方法TuckRL(TuckER embedding with reinforcement learning).首先,通过TuckER嵌入将实体和关系映射到低维向量空间,在知识图谱环境中采用策略引导的强化学习算法对路径推理过程进行建模,然后在路径游走进行动作选择时引入动作修剪机制减少无效动作的干扰,并将LSTM作为记忆组件保存智能体历史动作轨迹,促使智能体更准确地选择有效动作,通过与知识图谱的交互完成知识推理.在3个主流大规模数据集上进行了实验,结果表明TuckRL优于现有的大多数推理方法,说明将嵌入和强化学习相结合的方法用于知识推理的有效性.
基金supported by the National Basic Research Program of China (No.2007CB714006)
文摘This paper concerns the observer-based adaptive control problem of uncertain time-delay switched systems with stuck actuator faults. Under the case where the original controller cannot stabilize the faulty system, multiple adaptive controllers are designed and a suitable switching logic is incorporated to ensure the closed-loop system stability and state tracking. New delay-independent sufficient conditions for asymptotic stability are obtained in terms of linear matrix inequalities based on piecewise Lyapunov stability theory. On the other hand, adaptive laws for on-line updating of some of the controller parameters are also designed to compensate the effect of stuck failures. Finally, simulation results for reference [1] model show that the design is feasible and efficient.
文摘Purpose:.To evaluate the surgical effect of levator muscle shortening and levator aponeurosis tucking in treating minimal and moderate congenital blepharoptosis.Methods:.Clinical data of 28 patients(40 eyes) diagnosed with mide and moderate congenital blepharoptosis at our institution were retrospectively analyzed. Postoperative efficacy was evaluated and statistically compared between these two techniques.Results:.During 14 months follow-up,.16 eyes with ptosis undergoing levator muscle shortening were treated,.3 with undercorrection of ptosis and 1 with overcorrection of ptosis.In patients receiving levator aponeurosis tucking,.16 eyes were cured and 4 with undercorrection of ptosis.Conclusion:.Both levator muscle shortening and levator aponeurosis tucking are safe and efficacious for correcting minimal and moderate congenital blepharoptosis.
文摘目的探讨下颏抗阻力训练(chin tuck against resistance,CTAR)联合吞咽低频电刺激治疗脑卒中(cerebral stroke,CS)后吞咽障碍(dysphagia after actue stroke,DAS)患者的疗效。方法采用配对病例对照研究法选取虞城县人民医院康复科2021年1月至2023年9月收治的84例CS后DAS患者进行回顾性研究,按治疗方案不同分为参照组(n=42)、研究组(n=42)。其中采用吞咽低频电刺激治疗的患者设为参照组,采用CTAR联合吞咽低频电刺激治疗的患者设为研究组。比较两组治疗前、治疗4周后吞咽功能障碍分级情况、标准吞咽功能评定量表(SSA)评分、功能性经口舌摄食量表(FOIS)评分、舌骨喉活动度、表面肌电图、吞咽障碍特异性生命质量量表(SWAL-QOL)评分。结果研究组治疗4周后吞咽功能障碍改善情况优于参照组(P<0.05);研究组治疗4周后SSA评分为(24.18±2.12)分,低于参照组(28.79±3.77)分,FOIS评分为(5.68±0.45)分,高于参照组(4.63±0.51)分(P<0.05);研究组治疗4周后舌骨前移、上移活动度分别为(11.47±2.55)mm、(17.38±4.59)mm,高于参照组(8.25±1.06)mm、(14.03±4.56)mm(P<0.05);研究组治疗4周后最大波幅为(725.38±55.02)V,高于参照组(605.98±49.65)V,吞咽时程为(1.11±0.15)s,短于参照组(1.33±0.21)s(P<0.05);研究组治疗4周后SWAL-QOL评分为(125.32±15.32)分,高于参照组(102.54±14.25)分(P<0.05)。结论CTAR联合吞咽低频电刺激治疗CS后DAS患者可有效提高舌骨喉活动度,改善吞咽、摄食功能,促进生活质量提升。
