Systems and methods for modeling credit risks of publicly traded companies
    2.
    发明申请
    Systems and methods for modeling credit risks of publicly traded companies 有权
    上市公司信用风险模型的制度和方法

    公开(公告)号:US20050021452A1

    公开(公告)日:2005-01-27

    申请号:US10795541

    申请日:2004-03-08

    IPC分类号: G06Q10/00 G06F17/60

    摘要: There are provided new structural default models for modeling the likely default of publicly traded companies. In a first embodiment, the invention is straight-forward to implement and allows the capture of some important ingredients of the actual default, including positive short-term CDSs. In a second embodiment the model is somewhat more versatile and complex. Provided is a very efficient method for dealing with the timing of a default boundary, that is, jumps in the company's value, etc. Further provided is a process using Fast Fourier Transform matrix processing for processing the structural default models in a computationally efficient manner.

    摘要翻译: 提供了新的结构性默认模型来模拟上市公司的可能违约。 在第一个实施例中,本发明是直接执行并且允许捕获实际违约的一些重要成分,包括正的短期CDS。 在第二个实施例中,该模型更为通用且复杂。 提供了一种用于处理默认边界的定时的非常有效的方法,即公司价值的跳跃等。进一步提供的是使用快速傅里叶变换矩阵处理来以计算有效的方式处理结构性默认模型的过程。

    METHOD AND APPARATUS TO GUIDE LASER CORNEAL SURGERY WITH OPTICAL MEASUREMENT
    3.
    发明申请
    METHOD AND APPARATUS TO GUIDE LASER CORNEAL SURGERY WITH OPTICAL MEASUREMENT 审中-公开
    用光学测量指导激光角膜手术的方法和装置

    公开(公告)号:US20070282313A1

    公开(公告)日:2007-12-06

    申请号:US11757195

    申请日:2007-06-01

    IPC分类号: A61B18/18

    摘要: Optical coherence tomography (OCT) is used to map the surface elevation and thickness of the cornea. The OCT maps are used to plan laser procedures for the treatment of an irregular, opacified or weakened cornea, and in the treatment of refractive errors. In the excimer laser phototherapeutic keratectomy (PTK) procedure, the OCT data is used to plan a map of ablation depth needed to restore a smooth optical surface. In the excimer laser photorefractive keratectomy procedure, OCT mapping of epithelial thickness is used to achieve clean laser epithelial removal. In femtosecond laser anterior keratoplasty procedure, OCT data is used to plan the depth of femtosecond laser dissection to remove an anterior layer of the cornea, leaving a smooth recipient bed of uniform thickness to receive a disk of donated corneal tissue. The linkage of an OCT system to a precise laser surgical system enables the performance of new procedures that are safer, less invasive and produce faster visual recovery than conventional surgical procedures.

    摘要翻译: 光学相干断层扫描(OCT)用于绘制角膜的表面高程和厚度。 OCT图用于计划用于治疗不规则,不透明或弱化的角膜的激光程序,以及治疗屈光不正。 在准分子激光治疗性角膜切除术(PTK)中,OCT数据用于计划恢复光滑表面所需的消融深度图。 在准分子激光屈光角膜切除手术中,使用上皮厚度的OCT图来实现清洁的激光上皮移除。 在飞秒激光前角膜移植术中,OCT数据用于计划飞秒激光解剖深度以去除角膜前壁,留下均匀厚度的平滑受体床,以接收捐赠的角膜组织盘。 OCT系统与精确的激光手术系统的联系使得能够执行比常规外科手术更安全,更少侵入性并且产生更快的视觉恢复的新程序。

    Systems and methods for modeling credit risks of publicly traded companies
    4.
    发明申请
    Systems and methods for modeling credit risks of publicly traded companies 有权
    上市公司信用风险模型的制度和方法

    公开(公告)号:US20070027786A1

    公开(公告)日:2007-02-01

    申请号:US11543599

    申请日:2006-10-05

    IPC分类号: G06Q40/00

    摘要: There are provided new structural default models for modeling the likely default of publicly traded companies. In a first embodiment, the invention is straight-forward to implement and allows the capture of some important ingredients of the actual default, including positive short-term CDSs. In a second embodiment them model is somewhat more versatile and complex. Provided is a very efficient method for dealing with the timing of a default boundary, that is, jumps in the company's value, etc. Further provided is a process using Fast Fourier Transform matrix processing for processing the structural default models in a computationally efficient manner.

    摘要翻译: 提供了新的结构性默认模型来模拟上市公司的可能违约。 在第一个实施例中,本发明是直接执行并且允许捕获实际违约的一些重要成分,包括正的短期CDS。 在第二个实施例中,它们的模型更为通用和复杂。 提供了一种用于处理默认边界的定时的非常有效的方法,即公司价值的跳跃等。进一步提供的是使用快速傅里叶变换矩阵处理来以计算有效的方式处理结构性默认模型的过程。