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    • 3. 发明申请
    • SYSTEMS AND METHODS FOR DETECTING UNFAIR MANIPULATIONS OF ON-LINE REPUTATION SYSTEMS
    • 用于检测在线信号系统的广泛操作的系统和方法
    • WO2009140498A3
    • 2010-02-18
    • PCT/US2009043957
    • 2009-05-14
    • RHODE ISLAND EDUCATIONSUN YANKAY STEVEN MYANG YAFEIYANG QING
    • SUN YANKAY STEVEN MYANG YAFEIYANG QING
    • G06Q10/00
    • G06Q30/02G06Q10/10G06Q30/0282
    • A method is disclosed for detecting unfair ratings in rating data over a period of time with an on-line rating system. The method includes the steps of: detecting changes in an arrival rate of ratings in the rating data over the period of time and providing arrival rate change data; detecting changes in a model of the rating data over the period of time such that changes in the model are represented as model errors and providing model error data; detecting changes in a histogram of the rating data over the period of time and providing histogram detection data; detecting changes in a mean of the rating data over the period of time and providing mean change detection data; and processing the arrival rate change data, the model error data, the histogram detection data, and the mean change detection data to identify unfair ratings in the rating data.
    • 公开了一种用于通过在线评级系统检测一段时间内的评级数据中的不公平评级的方法。 该方法包括以下步骤:检测一段时间内评级数据中的评级到达率的变化并提供到达率变化数据; 在时间段内检测评级数据模型的变化,使得模型中的变化被表示为模型误差并提供模型误差数据; 检测一段时间内评级数据的直方图的变化并提供直方图检测数据; 检测一段时间内评级数据的平均值的变化并提供均值变化检测数据; 以及处理到达率变化数据,模型误差数据,直方图检测数据和平均变化检测数据,以识别评级数据中的不公平评级。
    • 9. 发明申请
    • METHOD AND SYSTEM FOR MAPPING TISSUE STATUS OF ACUTE STROKE
    • 用于绘制急性呼吸的组织状态的方法和系统
    • WO2010055405A3
    • 2010-08-26
    • PCT/IB2009007446
    • 2009-11-13
    • APOLLO MEDICAL IMAGING TECHNOLYANG QING
    • YANG QING
    • A61B5/02A61B5/055A61B6/00
    • A61B5/055A61B5/416A61B6/501A61B6/507A61B6/5217A61B6/5247G06T7/0012G06T7/11G06T7/136G06T2207/10072G06T2207/30104
    • The current invention provides a method of identifying a ischemic lesion. The method includes loading perfusion imaging data into an electronic memory element and deriving perfusion maps from the perfusion imaging data, where the perfusion maps include a cerebral blood volume (CBV) map and an arterial delay time (DT) map, which utilize arterial delay and dispersion effects. Ischemic pixels are determined from the perfusion imaging data, where the DT is greater than a predetermined first threshold value and the CBV is below a second threshold value and the infarct portion of the ischemic lesion is determined, where DT is greater than a predetermined third threshold value and/or the CBV is below a forth threshold value. A cluster analysis is applied to all of the determined ischemic lesion and infarct pixels and the penumbra is then determined, where mismatch regions between the ischemic lesion and the infarct core define the penumbra.
    • 本发明提供了鉴定缺血性病变的方法。 所述方法包括将灌注成像数据加载到电子存储元件中并从灌注成像数据中导出灌注图,其中灌注图包括使用动脉延迟的脑血容量(CBV)图和动脉延迟时间(DT)图, 分散效应。 从灌注成像数据确定缺血像素,其中DT大于预定的第一阈值,并且CBV低于第二阈值,并且确定缺血性损伤的梗死部分,其中DT大于预定的第三阈值 值和/或CBV低于第四阈值。 对所有确定的缺血性病变和梗死像素进行聚类分析,然后确定半暗带,其中缺血性病变与梗死核之间的不匹配区域定义半暗带。