公开(公告)号：US20120271788A1

公开(公告)日：2012-10-25

申请号：US13091405

申请日：2011-04-21

申请人： Ji Fang ,  Bi Chen

发明人： Ji Fang ,  Bi Chen

IPC分类号： G06N5/02

CPC分类号： G06F17/2785 ,  G06F17/2735 ,  G06F17/2795

摘要： A sentiment classifier for sentiment classification of content. An aspect classifier is configured to classify content as being related to a particular aspect of information, the aspect classifier incorporating at least a portion of the domain specific sentiment lexicon. A polarity classifier is then configured to classify the content classified by the aspect classifier as having one of a positive sentiment of the particular aspect of information, a negative sentiment of the particular aspect of information or as having no sentiment as to the particular aspect of information. The polarity classifier also incorporating at least a portion of the domain specific sentiment lexicon.

摘要翻译： 内容的情感分类情感分类器。 方面分类器被配置为将内容分类为与信息的特定方面相关，所述方面分类器包含域特定情绪词典的至少一部分。 然后，极性分类器被配置为将由分类器分类的内容分类为具有信息的特定方面的积极情绪，信息的特定方面的消极情绪或对信息的特定方面没有感觉 。 极性分类器还包含域特定情绪词典的至少一部分。

公开(公告)号：US20090086331A1

公开(公告)日：2009-04-02

申请号：US12235697

申请日：2008-09-23

申请人： R. A. Gunasekaran ,  Mangilal Agarwal ,  Ji Fang ,  Jackie Chen ,  Weisong Wang ,  Kody Varahramyan

发明人： R. A. Gunasekaran ,  Mangilal Agarwal ,  Ji Fang ,  Jackie Chen ,  Weisong Wang ,  Kody Varahramyan

IPC分类号： G02B3/14

CPC分类号： G02B3/14 ,  G02B1/06 ,  G02B15/00

摘要： A variable focal length microlens system having a base section with a fluid chamber and a fluid pressurization mechanism. A flexible, substantially transparent polymer lens section is fixed above the fluid chamber and the lens section has a curvature providing an initial focal point when in an unstrained state. The fluid chamber is substantially sealed and the fluid pressurization mechanism includes a flexible wall in the base section. The flexible wall may be displaced by magnetic activation, PZT activation of another activating mechanism.

摘要翻译： 一种可变焦距微透镜系统，具有具有流体室的基部和流体加压机构。 柔性的，基本上透明的聚合物透镜部分固定在流体室的上方，并且透镜部分具有在处于无限制状态时提供初始焦点的曲率。 流体室基本上被密封，并且流体加压机构包括在基部中的柔性壁。 柔性壁可以通过磁激活，PZT激活另一激活机构而移位。

公开(公告)号：US09672204B2

公开(公告)日：2017-06-06

申请号：US12789953

申请日：2010-05-28

申请人： Ji Fang ,  Jason Kessler

发明人： Ji Fang ,  Jason Kessler

IPC分类号： G06F17/00 ,  G06F17/27 ,  G06F17/28

CPC分类号： G06F17/2775 ,  G06F17/2795 ,  G06F17/2827

摘要： An automatic paraphrase acquisition technique is provided. A common theme of the various embodiments described herein resides in careful design of simple tasks that can elicit the necessary information for the automated process. These tasks are performed quickly and inexpensively. By gathering the results produced, paraphrases can be generated automatically using the method and/or system.

公开(公告)号：US08340062B2

公开(公告)日：2012-12-25

申请号：US12792677

申请日：2010-06-02

申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  He Liu ,  Ji Fang

发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  He Liu ,  Ji Fang

IPC分类号： H04L27/28

CPC分类号： H04L1/0045 ,  H04L1/208 ,  H04L25/03891

摘要： An uncontrolled spatial multiple access system and method facilitating spatial multiple access for multiple devices in a wireless local-area network (WLAN). Embodiments of the system and method increase throughput of the wireless network by facilitating concurrent encoded frame transmission. Decoding of the quasi-overlapped frames is achieved using a chain decoding technique that takes data streams (or signals) containing the quasi-overlapping encoded frames and isolates each encoded frame so that the frame can be decoded. Quasi-overlapped frames means that the frames are overlapped in the body of the frame but not at the preamble (or headers) of the frames. Embodiments of the chain decoding also use interference nullifying and interference cancellation to enable concurrent quasi-overlapping transmission. A carrier counting multiple access technique of embodiments of the system and method allow wireless networks to retain their asynchronous nature while supporting spatial multiple access and maintain backwards compatibility with the IEEE 802.11 standard.

摘要翻译： 一种不受控制的空间多址系统和方法，其促进无线局域网（WLAN）中的多个设备的空间多址接入。 该系统和方法的实施例通过促进并发编码的帧传输来增加无线网络的吞吐量。 使用链式解码技术来实现准重叠帧的解码，链路解码技术获取包含准重叠编码帧的数据流（或信号），并隔离每个编码帧，使得帧可以被解码。 准重叠帧意味着帧在帧的主体中重叠，但不在帧的前导码（或报头）处。 链路解码的实施例还使用干扰无效和干扰消除来实现并行准重叠传输。 计算系统和方法的实施例的多址接入技术的载波允许无线网络保持其异步性质，同时支持空间多址并保持与IEEE 802.11标准的向后兼容性。

公开(公告)号：US20120127914A1

公开(公告)日：2012-05-24

申请号：US12952063

申请日：2010-11-22

申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji-hoon Ryoo ,  Ji Fang

发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji-hoon Ryoo ,  Ji Fang

IPC分类号： H04B7/14

CPC分类号： H04B7/15521 ,  H04B7/14 ,  H04B7/15 ,  H04B7/15528 ,  H04B7/15592

摘要： Techniques and systems that improve throughput between a pair of nodes by using two multi-hop paths of one-way flows regardless of the one-way flows interfering with each other are described herein. These techniques enable nearly full-rate data flow through frame transmissions, even though these frame transmissions can interfere with substantially concurrent relay transmissions. In some implementations, relays on the two paths forward mixed frame signals to the next hop without trying to decode the mixed frame signals of interfered frames. The destination successfully recovers the useful information from the mixed frame signals by canceling out interference based on previously received frames.

摘要翻译： 这里描述了通过使用单向流的两个多跳路径来改善一对节点之间的吞吐量的技术和系统，而不管彼此干扰的单向流。 即使这些帧传输可能干扰基本上并发的中继传输，这些技术使得能够通过帧传输几乎全速率数据流。 在一些实施方式中，两个路径上的中继器将混合帧信号转发到下一跳，而不尝试对被干扰帧的混合帧信号进行解码。 目的地通过基于先前接收到的帧来消除干扰，从混合帧信号成功地恢复有用信息。

公开(公告)号：US20110299612A1

公开(公告)日：2011-12-08

申请号：US12792677

申请日：2010-06-02

申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  He Liu ,  Ji Fang

发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  He Liu ,  Ji Fang

IPC分类号： H04L27/28

CPC分类号： H04L1/0045 ,  H04L1/208 ,  H04L25/03891

摘要： An uncontrolled spatial multiple access system and method facilitating spatial multiple access for multiple devices in a wireless local-area network (WLAN). Embodiments of the system and method increase throughput of the wireless network by facilitating concurrent encoded frame transmission. Decoding of the quasi-overlapped frames is achieved using a chain decoding technique that takes data streams (or signals) containing the quasi-overlapping encoded frames and isolates each encoded frame so that the frame can be decoded. Quasi-overlapped frames means that the frames are overlapped in the body of the frame but not at the preamble (or headers) of the frames. Embodiments of the chain decoding also use interference nullifying and interference cancelation to enable concurrent quasi-overlapping transmission. A carrier counting multiple access technique of embodiments of the system and method allow wireless networks to retain their asynchronous nature while supporting spatial multiple access and maintain backwards compatibility with the IEEE 802.11 standard.

摘要翻译： 一种不受控制的空间多址系统和方法，其促进无线局域网（WLAN）中的多个设备的空间多址接入。 该系统和方法的实施例通过促进并发编码的帧传输来提高无线网络的吞吐量。 使用链式解码技术来实现准重叠帧的解码，链路解码技术获取包含准重叠编码帧的数据流（或信号），并隔离每个编码帧，使得帧可以被解码。 准重叠帧意味着帧在帧的主体中重叠，但不在帧的前导码（或报头）处。 链路解码的实施例还使用干扰无效和干扰消除来实现并行准重叠传输。 计算系统和方法的实施例的多址接入技术的载波允许无线网络保持其异步性质，同时支持空间多址并保持与IEEE 802.11标准的向后兼容性。

公开(公告)号：US08660056B2

公开(公告)日：2014-02-25

申请号：US12952063

申请日：2010-11-22

申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji-hoon Ryoo ,  Ji Fang

发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji-hoon Ryoo ,  Ji Fang

IPC分类号： H04W4/00 ,  H04B7/14 ,  H04J1/10 ,  H04J3/08 ,  H04B7/155 ,  H04B7/15

CPC分类号： H04B7/15521 ,  H04B7/14 ,  H04B7/15 ,  H04B7/15528 ,  H04B7/15592

摘要： Techniques and systems that improve throughput between a pair of nodes by using two multi-hop paths of one-way flows regardless of the one-way flows interfering with each other are described herein. These techniques enable nearly full-rate data flow through frame transmissions, even though these frame transmissions can interfere with substantially concurrent relay transmissions. In some implementations, relays on the two paths forward mixed frame signals to the next hop without trying to decode the mixed frame signals of interfered frames. The destination successfully recovers the useful information from the mixed frame signals by canceling out interference based on previously received frames.

摘要翻译： 这里描述了通过使用单向流的两个多跳路径来改善一对节点之间的吞吐量的技术和系统，而不管彼此干扰的单向流。 即使这些帧传输可能干扰基本上并发的中继传输，这些技术使得能够通过帧传输几乎全速率数据流。 在一些实施方式中，两个路径上的中继器将混合帧信号转发到下一跳，而不尝试对被干扰帧的混合帧信号进行解码。 目的地通过基于先前接收到的帧来消除干扰，从混合帧信号成功地恢复有用信息。

公开(公告)号：US08510097B2

公开(公告)日：2013-08-13

申请号：US12338085

申请日：2008-12-18

申请人： Lauri J Karttunen ,  Ji Fang

发明人： Lauri J Karttunen ,  Ji Fang

IPC分类号： G06F17/20 ,  G06F17/28 ,  G10L15/04

CPC分类号： G06F17/2775

摘要： Computer methods, apparatus and articles of manufacture therefor, are disclosed for text-characterization using a finite state transducer that along each path accepts on a first side an n-gram of text-characterization (e.g., a language or a topic) and outputs on a second side a sequence of symbols identifying one or more text-characterizations from a set of text-characterizations. The finite state transducer is applied to input data. For each n-gram accepted by the finite state transducer, a frequency counter associated with the n-gram of the one or more text-characterizations in the set of text-characterizations is incremented. The input data is classified as one or more text-characterizations from the set of text-characterizations using the frequency counters associated therewith.

摘要翻译： 公开了用于文本表征的计算机方法，装置和制品，其使用有限状态传感器，沿着每个路径在第一侧接受n-gram的文本表征（例如，语言或主题），并在 第二侧是从一组文本表征中识别一个或多个文本表征的符号序列。 将有限状态传感器应用于输入数据。 对于由有限状态传感器接受的每个n-gram，与文本特征集合中的一个或多个文本表征的n-gram相关联的频率计数器递增。 使用与其相关联的频率计数器将输入数据分类为来自一组文本表征的一个或多个文本表征。

公开(公告)号：US08352405B2

公开(公告)日：2013-01-08

申请号：US13091405

申请日：2011-04-21

申请人： Ji Fang ,  Bi Chen

发明人： Ji Fang ,  Bi Chen

IPC分类号： G06F17/00 ,  G06N5/02

CPC分类号： G06F17/2785 ,  G06F17/2735 ,  G06F17/2795

摘要： A sentiment classifier for sentiment classification of content. An aspect classifier is configured to classify content as being related to a particular aspect of information, the aspect classifier incorporating at least a portion of the domain specific sentiment lexicon. A polarity classifier is then configured to classify the content classified by the aspect classifier as having one of a positive sentiment of the particular aspect of information, a negative sentiment of the particular aspect of information or as having no sentiment as to the particular aspect of information. The polarity classifier also incorporating at least a portion of the domain specific sentiment lexicon.

摘要翻译： 内容的情感分类情感分类器。 方面分类器被配置为将内容分类为与信息的特定方面相关，所述方面分类器包含域特定情绪词典的至少一部分。 然后，极性分类器被配置为将由分类器分类的内容分类为具有信息的特定方面的积极情绪，信息的特定方面的消极情绪或对信息的特定方面没有感觉 。 极性分类器还包含域特定情绪词典的至少一部分。

公开(公告)号：US20110317633A1

公开(公告)日：2011-12-29

申请号：US12824104

申请日：2010-06-25

申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji Fang

发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji Fang

IPC分类号： H04W74/00

CPC分类号： H04W74/08 ,  H04L27/2607 ,  H04W72/00 ,  H04W72/044 ,  H04W84/12

摘要： A fine-grained channel access system and method to facilitate fine-grained channel access in a high-data rate wide-band wireless local-area network (WLAN). Embodiments of the system and method divide an entire wireless channel into proper size subchannels commensurate with the physical layer data rate and typical frame size. Once the subchannels are defined, each node on the WLAN contends independently for each of the fine-grained subchannels. A first orthogonal frequency-division multiplexing (OFDM) technique is used to signal an access point on the WLAN that the node desires one or more of the subchannels. A second OFDM technique (which is different from the first OFDM technique) is used for data transmission. Sometimes there is contention between nodes that want the same subchannel. The access point resolves any contention between the nodes using a frequency domain contention technique that includes a frequency domain backoff technique.

摘要翻译： 一种细粒度的信道接入系统和方法，用于在高数据速率宽带无线局域网（WLAN）中促进细粒度信道接入。 系统和方法的实施例将整个无线信道划分成与物理层数据速率和典型帧大小相称的适当尺寸的子信道。 一旦定义了子信道，WLAN上的每个节点独立地针对每个细粒度子信道进行竞争。 第一正交频分复用（OFDM）技术用于向WLAN上的接入点发信号通知节点希望一个或多个子信道。 第二OFDM技术（其与第一OFDM技术不同）用于数据传输。 有时在需要相同子通道的节点之间存在竞争。 接入点使用包括频域退避技术的频域争用技术来解决节点之间的任何争用。