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    METHODS AND SYSTEMS FOR RECOMMENDING SERVICES BASED ON AN ELECTRONIC SOCIAL MEDIA TRUST MODEL
    1.
    发明申请
    METHODS AND SYSTEMS FOR RECOMMENDING SERVICES BASED ON AN ELECTRONIC SOCIAL MEDIA TRUST MODEL 审中-公开
    基于电子社会媒体信任模型推荐服务的方法与系统

    公开(公告)号：US20130097056A1

    公开(公告)日：2013-04-18

    申请号：US13272811

    申请日：2011-10-13

    申请人： Tong Sun ,  Lei Li ,  Hua Liu

    发明人： Tong Sun ,  Lei Li ,  Hua Liu

    IPC分类号： G06F15/16 ,  G06Q30/06

    CPC分类号： G06Q10/00 ,  G06Q30/02

    摘要： Methods and systems for recommending a service based on an electronic social media trust model. A user trust network and a service trust network can be constructed and the two separate trust networks can be combined to form a combined trust network. The combined trust network includes an explicit trust and an implicit trust in order to improve the recommendation coverage and consider a latent service rating without suffering noisy data. A trust-oriented random walk model can be conducted on a user node with respect to the combined trust network based on a user search intent and navigation behavior in order to select and recommend a service candidate. A service rating can then be predicted by considering the user ratings with respect to a target service, a propagated trust and an inferred service rating.

    摘要翻译： 基于电子社交媒体信托模型推荐服务的方法和系统。 可以构建用户信任网络和服务信任网络，并且可以组合两个单独的信任网络以形成组合的信任网络。 组合的信任网络包括明确的信任和隐性信任，以便改善推荐覆盖率并考虑潜在服务评级，而不会有嘈杂的数据。 可以基于用户搜索意图和导航行为相对于组合的信任网络在用户节点上进行信任导向的随机游走模型，以便选择和推荐服务候选者。 然后可以通过考虑用户对目标服务的评级，传播的信任和推断的服务评级来预测服务评级。

    Systems and methods for scalable topic detection in social media
    2.
    发明授权
    Systems and methods for scalable topic detection in social media 有权
    在社交媒体中扩展主题检测的系统和方法

    公开(公告)号：US09183293B2

    公开(公告)日：2015-11-10

    申请号：US13324391

    申请日：2011-12-13

    申请人： Lei Li ,  Wei Peng ,  Tong Sun

    发明人： Lei Li ,  Wei Peng ,  Tong Sun

    IPC分类号： G06F17/30 ,  G06Q30/02 ,  G06Q50/00

    CPC分类号： G06F17/30734 ,  G06F17/3071 ,  G06Q30/02 ,  G06Q50/01

    摘要： Embodiments generally relate to systems and methods for detecting topics in social media data. More particularly, the systems and methods can extract a concept hierarchy from a set of data, wherein the concept hierarchy comprises a plurality of layers. Further, the systems and methods can train topic models based on the content in each of the layers. Still further, the systems and methods can select the most appropriate topic model for social media data by balancing the complexity of the model and the accuracy of the topic detection result. Moreover, the systems and methods can use the most appropriate topic model to detect topics in social media data.

    摘要翻译： 实施例通常涉及用于检测社交媒体数据中的主题的系统和方法。 更具体地，系统和方法可以从一组数据中提取概念层次，其中概念层级包括多个层。 此外，系统和方法可以基于每个层中的内容来训练主题模型。 此外，系统和方法可以通过平衡模型的复杂性和主题检测结果的准确性来为社交媒体数据选择最合适的主题模型。 此外，系统和方法可以使用最合适的主题模型来检测社交媒体数据中的主题。

    SYSTEMS AND METHODS FOR SCALABLE TOPIC DETECTION IN SOCIAL MEDIA
    3.
    发明申请
    SYSTEMS AND METHODS FOR SCALABLE TOPIC DETECTION IN SOCIAL MEDIA 有权
    社会媒体可衡量主题检测的系统与方法

    公开(公告)号：US20130151531A1

    公开(公告)日：2013-06-13

    申请号：US13324391

    申请日：2011-12-13

    申请人： Lei Li ,  Wei Peng ,  Tong Sun

    发明人： Lei Li ,  Wei Peng ,  Tong Sun

    IPC分类号： G06F17/30

    CPC分类号： G06F17/30734 ,  G06F17/3071 ,  G06Q30/02 ,  G06Q50/01

    摘要： Embodiments generally relate to systems and methods for detecting topics in social media data. More particularly, the systems and methods can extract a concept hierarchy from a set of data, wherein the concept hierarchy comprises a plurality of layers. Further, the systems and methods can train topic models based on the content in each of the layers. Still further, the systems and methods can select the most appropriate topic model for social media data by balancing the complexity of the model and the accuracy of the topic detection result. Moreover, the systems and methods can use the most appropriate topic model to detect topics in social media data.

    摘要翻译： 实施例通常涉及用于检测社交媒体数据中的主题的系统和方法。 更具体地，系统和方法可以从一组数据中提取概念层次，其中概念层级包括多个层。 此外，系统和方法可以基于每个层中的内容来训练主题模型。 此外，系统和方法可以通过平衡模型的复杂性和主题检测结果的准确性来为社交媒体数据选择最合适的主题模型。 此外，系统和方法可以使用最合适的主题模型来检测社交媒体数据中的主题。

    METHODS AND SYSTEMS FOR MEASURING ENGAGEMENT EFFECTIVENESS IN ELECTRONIC SOCIAL MEDIA
    4.
    发明申请
    METHODS AND SYSTEMS FOR MEASURING ENGAGEMENT EFFECTIVENESS IN ELECTRONIC SOCIAL MEDIA 审中-公开
    电子社会媒体测量有效性的方法与系统

    公开(公告)号：US20130080212A1

    公开(公告)日：2013-03-28

    申请号：US13245039

    申请日：2011-09-26

    申请人： Lei Li ,  Tong Sun ,  Wei Peng

    发明人： Lei Li ,  Tong Sun ,  Wei Peng

    IPC分类号： G06Q10/00

    CPC分类号： G06Q10/10 ,  G06Q50/01

    摘要： A system and method for measuring engagement effectiveness with respect to a service agent by analyzing a conversation between the agent and a customer in a social media environment. A conversation history between the agent and the customer can be mapped into a multi-resolution space based on different time frames via a mapping module. A polarized topical and sentimental distance between the continuous conversations can be calculated by applying a topic-sentiment mixture model and a divergence theorem onto the conversation history with respect to the time frame. Finally, the polarized topical distances can be aggregated in a time-sensitive way based on a time function and an effectiveness score can be calculated and represented as a weighted pyramid kernel of multiple levels. Such a time-sensitive pyramid kernel function based on the implicit topical and sentimental correspondences between daily conversations enables discriminative evaluation for the agent engagement in a customer care.

    摘要翻译： 一种用于通过分析代理和社交媒体环境中的客户之间的对话来测量关于服务代理的参与有效性的系统和方法。 代理和客户之间的会话历史可以通过映射模块基于不同的时间帧映射到多分辨率空间。 可以通过将关于时间框架的话题情感混合模型和发散定理应用于会话历史来计算连续对话之间的极化局部和感性的距离。 最后，可以基于时间函数以时间敏感的方式聚合极化的局部距离，并且可以计算有效性得分并将其表示为多个级别的加权金字塔核。 这种基于日常对话之间隐含的主题和感性对应的时间敏感的金字塔核心功能使得代理人参与客户关怀的歧视性评估成为可能。

    Method of Detecting Source Change for File Level Incremental Backup
    5.
    发明申请
    Method of Detecting Source Change for File Level Incremental Backup 审中-公开

    公开(公告)号：US20190095286A1

    公开(公告)日：2019-03-28

    申请号：US15714366

    申请日：2017-09-25

    申请人： Zhenqiu Fang ,  Lei Li ,  Zhonghua Dang ,  Guangju Li

    发明人： Zhenqiu Fang ,  Lei Li ,  Zhonghua Dang ,  Guangju Li

    IPC分类号： G06F11/14

    摘要： A system and method are presented that identify new, modified, unchanged, and deleted files in an incremental backup through a file list maintained on the backup destination. The FileList is a flat file in which file information about each file on a source node is stored sequentially into the file. During a subsequent incremental backup, the FileList is read sequentially from the backup destination and is used to generate a search tree. A hash value based on the file path is the key to the search tree, with the file's modified time and size being hashed together to form the value of the tree's key-value pair. Files are examined on the source and compared to the key-value pairs in the search tree. Status information in the search tree is modified to indicate discovered files. Unmodified status information identifies files that have been deleted since the previous backup.

    Method and apparatus for transmitting and receiving data in orthogonal frequency division multiplexing system
    6.
    发明授权
    Method and apparatus for transmitting and receiving data in orthogonal frequency division multiplexing system 有权

    公开(公告)号：US10123327B2

    公开(公告)日：2018-11-06

    申请号：US14344926

    申请日：2011-09-19

    申请人： Yang Hu ,  Zhiping Lei ,  Lei Li ,  Jie Mao

    发明人： Yang Hu ,  Zhiping Lei ,  Lei Li ,  Jie Mao

    IPC分类号： H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W88/08

    摘要： Embodiments of the disclosure provide a method in a source node for transmitting data in an OFDM system in which data are transmitted on frequency bands from the source node to a destination node, the method comprising: selecting a set of frequency bands from available frequency bands in the OFDM system; and transmitting data in frequency domain on the selected set of frequency bands to the destination node. Embodiments of the disclosure further provide a method at a destination node for receiving data in an OFDM system in which data are received on frequency bands from a source node, the method comprising: determining a set of frequency bands of available frequency bands on which data are to be received in frequency domain; and receiving the data on the determined set of frequency bands from the source node. Corresponding apparatuses are also provided.

    Method for the production of ethylene glycol
    10.
    发明授权
    Method for the production of ethylene glycol 有权
    乙二醇生产方法

    公开(公告)号：US08962895B2

    公开(公告)日：2015-02-24

    申请号：US14001120

    申请日：2012-02-24

    申请人： Juntao Liu ,  Weimin Yang ,  Lei Li ,  Wanmin Wang ,  Linna Zhang ,  Haifeng Song

    发明人： Juntao Liu ,  Weimin Yang ,  Lei Li ,  Wanmin Wang ,  Linna Zhang ,  Haifeng Song

    IPC分类号： C07C29/149 ,  B01J8/06

    CPC分类号： C07C29/149 ,  B01J8/067 ,  B01J2208/0053 ,  Y02P20/52 ,  C07C31/202

    摘要： The present invention relates to a method for the production of ethylene glycol using a feedstock comprising an oxalate and a catalyst containing copper and/or a copper oxide, comprising contacting the feedstock with the catalyst in a reactor under the conditions of a temperature in the range from about 170 to about 270° C., a weight hourly space velocity of the oxalate in the range from about 0.2 to about 5 h−1, a molar ratio of hydrogen to the oxalate in the range from about 40:1 to about 200:1 and a reaction pressure in the range from about 1.5 to about 10 MPa, to produce an effluent containing ethylene glycol, in which the reactor is a tube-array reactor using partitioned heat exchange and adopting outer and inner tubes configured in a double-tube structure to facilitate the heat exchange of the catalyst.

    摘要翻译： 本发明涉及使用包含草酸盐和含有铜和/或氧化铜的催化剂的原料生产乙二醇的方法，包括在反应器中在等温范围内的温度条件下将反应器与催化剂接触 约170至约270℃，草酸盐的重时空速在约0.2至约5小时-1的范围内，氢与草酸的摩尔比在约40:1至约200的范围内 ：1，反应压力在约1.5至约10MPa的范围内，以产生含有乙二醇的流出物，其中反应器是使用分隔热交换的管阵列反应器，并采用配置在双组分中的外管和内管， 管结构以促进催化剂的热交换。