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    • 51. 发明授权
    • Accurate text classification through selective use of image data
    • 通过选择性使用图像数据来准确地进行文本分类
    • US08768050B2
    • 2014-07-01
    • US13158484
    • 2011-06-13
    • Anitha KannanPartha Pratim TalukdarNikhil RasiwasiaQifa KeRakesh Agrawal
    • Anitha KannanPartha Pratim TalukdarNikhil RasiwasiaQifa KeRakesh Agrawal
    • G06K9/62
    • G06K9/6268G06K9/6227G06K9/6293
    • Product images are used in conjunction with textual descriptions to improve classifications of product offerings. By combining cues from both text and image descriptions associated with products, implementations enhance both the precision and recall of product description classifications within the context of web-based commerce search. Several implementations are directed to improving those areas where text-only approaches are most unreliable. For example, several implementations use image signals to complement text classifiers and improve overall product classification in situations where brief textual product descriptions use vocabulary that overlaps with multiple diverse categories. Other implementations are directed to using text and images “training sets” to improve automated classifiers including text-only classifiers. Certain implementations are also directed to learning a number of three-way image classifiers focused only on “confusing categories” of the text signals to improve upon those specific areas where text-only classification is weakest.
    • 产品图像与文本描述结合使用,以改进产品分类。 通过结合来自与产品相关的文本和图像描述的提示,实现在基于网络的商业搜索的上下文中增强了产品描述分类的精度和回收。 几个实现旨在改进那些仅文本方法最不可靠的领域。 例如,在简短的文本产品描述使用与多个不同类别重叠的词汇的情况下,多个实现使用图像信号来补充文本分类器并改进整体产品分类。 其他实现涉及使用文本和图像“训练集”来改进自动分类器,包括纯文本分类器。 某些实现也针对学习一些三维图像分类器,仅针对文本信号的“混淆类别”,以改善文本分类最弱的特定领域。
    • 53. 发明授权
    • Query classification using implicit labels
    • 使用隐式标签的查询分类
    • US08423568B2
    • 2013-04-16
    • US12560427
    • 2009-09-16
    • Ariel D. FuxmanAnitha KannanAndrew Brian GoldbergRakesh Agrawal
    • Ariel D. FuxmanAnitha KannanAndrew Brian GoldbergRakesh Agrawal
    • G06F7/00G06F17/30
    • G06F17/30693
    • Described is a technology for automatically generating labeled training data for training a classifier based upon implicit information associated with the data. For example, whether a query has commercial intent can be classified based upon whether the query was submitted at a commercial website's search portal, as logged in a toolbar log. Positive candidate query-related data is extracted from the toolbar log based upon the associated implicit information. A click log is processed to obtain negative query-related data. The labeled training data is automatically generated by separating at least some of the positive candidate query data from the remaining positive candidate query data based upon the negative query data. The labeled training data may be used to train a classifier, such as to classify an online search query as having a certain type of intent or not.
    • 描述了一种用于根据与数据相关联的隐含信息自动生成用于训练分类器的标记训练数据的技术。 例如,查询是否具有商业意图可以根据在商业网站的搜索门户网站上提交的查询进行分类,如登录在工具栏日志中。 基于相关联的隐含信息,从工具栏日志中提取正候选查询相关数据。 处理点击日志以获取负查询相关数据。 基于负查询数据,将剩余的正候选查询数据中的至少一些正候选查询数据分离出来,自动生成标示训练数据。 标记的训练数据可以用于训练分类器,例如将在线搜索查询分类为具有某种类型的意图。
    • 54. 发明授权
    • Object classification using taxonomies
    • 使用分类法的对象分类
    • US08275726B2
    • 2012-09-25
    • US12414065
    • 2009-03-30
    • Panayiotis TsaparasPanagiotis PapadimitriouAriel D. FuxmanLise C. GetoorRakesh Agrawal
    • Panayiotis TsaparasPanagiotis PapadimitriouAriel D. FuxmanLise C. GetoorRakesh Agrawal
    • G06E1/00G06E3/00G06F15/18G06G7/00
    • G06N99/005
    • As provided herein objects from a source catalog, such as a provider's catalog, can be added to a target catalog, such as an enterprise master catalog, in a scalable manner utilizing catalog taxonomies. A baseline classifier determines probabilities for source objects to target catalog classes. Source objects can be assigned to those classes with probabilities that meet a desired threshold and meet a desired rate. A classification cost for target classes can be determined for respective unassigned source objects, which can comprise determining an assignment cost and separation cost for the source objects for respective desired target classes. The separation and assignment costs can be combined to determine the classification cost, and the unassigned source objects can be assigned to those classes having a desired classification cost.
    • 如本文所提供的,可以使用目录分类法将来自源目录的诸如提供者目录的对象以可扩展的方式添加到目标目录,例如企业主目录。 基准分类器确定源对象到目标目录类的概率。 可以将源对象分配给具有满足期望阈值且满足期望速率的概率的那些类。 可以针对相应的未分配的源对象来确定目标类别的分类成本,其可以包括确定用于各个期望目标类别的源对象的分配成本和分离成本。 分离和分配成本可以组合以确定分类成本,并且未分配的源对象可以被分配给具有期望的分类成本的那些类。
    • 55. 发明申请
    • THIN FILMS FOR PHOTOVOLTAIC CELLS
    • 光伏电池薄膜
    • US20120115312A1
    • 2012-05-10
    • US13321834
    • 2010-05-26
    • Rakesh AgrawalHugh W. HillhouseQijie GuoMahaprasad Kar
    • Rakesh AgrawalHugh W. HillhouseQijie GuoMahaprasad Kar
    • H01L21/20
    • H01L31/0322B82Y30/00C09D11/36H01L21/02485H01L21/02568H01L21/02601H01L21/02614H01L21/02628H01L31/0749H01L31/1864Y02E10/541Y02P70/521
    • In one aspect, a method for forming CIGSSe-based thin films includes depositing at least two layers of particles on a substrate. At least one layer includes a CIGSSe particle having a chemical composition denoted by Cu(InI-xGax)(S1-ySey)2 where 0≦x ≦1 and 0≦y≦1. The particle layers are annealed individually or in combination to form a CIGSSe thin film having a composition profile along the depth of the film In addition, one or more of the particle layers may be also deposited on a pre-existing absorber and annealed to form a film having a composition profile along the depth of the film After depositing thin film precursor layers containing CIGSSe nanoparticles (and/or any other particles) on a suitable substrate in accordance with a desired concentration profile, a subsequent treatment under an Se and/or S containing atmosphere at elevated temperature may be used to convert the precursor layers into a CIGSSe absorber film In a further aspect, a method for forming multinary metal chalcogenide semiconductor layers directly on a substrate from a solution of precursors, includes depositing a plurality of metal chalcogenide particles onto a substrate to form a precursor film A species containing a metal, chalcogen, or combination thereof is dissolved in a solution containing one or more solvents to form a liquid chalcogen medium. The precursor film is contacted with the liquid chalcogen medium at a temperature of at least 50 C to form a multinary metal chalcogenide thin film
    • 一方面,用于形成CIGSSe的薄膜的方法包括在衬底上沉积至少两层颗粒。 至少一层包括具有由Cu(InI-xGax)(S1-ySey)2表示的化学组成的CIGSSe颗粒,其中0和nlE; x和nlE; 1和0& nlE; y≦̸ 1。 颗粒层单独地或组合地退火以形成具有沿着膜的深度的组成分布的CIGSSe薄膜。此外,一个或多个颗粒层也可以沉积在预先存在的吸收体上并退火以形成 具有沿着膜深度的组成轮廓的膜根据期望的浓度分布,在合适的底物上沉积含有CIGSSe纳米颗粒(和/或任何其它颗粒)的薄膜前体层,然后在Se和/或S 可以使用高温下的含氮气氛将前体层转化为CIGSSe吸收膜。在另一方面,从前体溶液直接在基底上形成多金属硫族化物半导体层的方法包括沉积多个金属硫族化物颗粒 在基材上形成前体膜A含有金属,硫族元素或其组合的物质是溶解的 在含有一种或多种溶剂以形成液体硫属培养基的溶液中。 前体膜与液态硫属培养基在至少50℃的温度下接触以形成多元金属硫族化物薄膜
    • 58. 发明授权
    • System and method for distributed querying and presentation of information from heterogeneous data sources
    • 用于从异构数据源分发查询和呈现信息的系统和方法
    • US07702617B2
    • 2010-04-20
    • US10286300
    • 2002-10-31
    • Rakesh AgrawalAmit Somani
    • Rakesh AgrawalAmit Somani
    • G06F7/00G06F17/30
    • G06Q10/06G06Q30/0282
    • A method, system, business method, and computer program product for retrieving and organizing networked data, wherein fetch rules and extraction rules enable a user to automatically collect and extract information from a remote network site. The fetch rules reproduce the interaction a client executes if interacting directly with the remote site, so a server cannot be shut out. The extraction rules allow the client, preferably via an applet, to glean relevant information from the acquired pages for presentation in a general interface. As an electronic commerce business method, information about remote site responsiveness, fetch rules, and extraction rules may be shared between server and client for a fee. The server accumulates vendor contacts, stores query rules, and provides common interface rules. The invention can gather statistics on vendor responsiveness and can resell information to vendors or others.
    • 一种用于检索和组织网络数据的方法,系统,业务方法和计算机程序产品,其中获取规则和提取规则使得用户能够从远程网站自动收集和提取信息。 获取规则重现客户端直接与远程站点交互时执行的交互,因此无法关闭服务器。 提取规则允许客户端,优选地通过小应用程序从所获取的页面中收集相关信息,以便在通用接口中呈现。 作为电子商务业务方法,有关远程站点响应,获取规则和提取规则的信息可能会在服务器和客户端之间共享一段费用。 服务器累积供应商联系人,存储查询规则,并提供通用接口规则。 本发明可以收集关于供应商响应能力的统计信息,并可以向供应商或其他人转售信息。
    • 60. 发明授权
    • Apparatus, and associated method, for facilitating dynamic filtering of a receive signal
    • 装置和相关方法,用于促进接收信号的动态滤波
    • US07444132B2
    • 2008-10-28
    • US10407931
    • 2003-04-04
    • Li PanRakesh Agrawal
    • Li PanRakesh Agrawal
    • H04M11/00
    • H04B1/123
    • Apparatus, and an associated method, for adaptively controlling filter characteristics of a filter forming part of a receive station, such as a mobile station operable in a cellular communication system. An adaptive parameter unit is provided with signal representations of signals that are to be applied to the filter element. The adaptive parameter unit, responsive to measurement or other analysis of the signal indicia, selects the filter characteristics to be exhibited by the filter. And, the filter characteristics are caused to be selected responsive thereto. Dynamic selection and reselection of the filter characteristics is effectuated in which the response time of the filter is minimized during good signal conditions and increased, to permit increased filter operations, during weak signal conditions.
    • 用于自适应地控制形成诸如在蜂窝通信系统中操作的移动站的接收站的一部分的滤波器的滤波器特性的装置和相关联的方法。 自适应参数单元被提供有要施加到滤波器元件的信号的信号表示。 响应于信号标记的测量或其他分析的自适应参数单元选择滤波器要呈现的滤波器特性。 并且,响应于此而选择滤波器特性。 实现了滤波器特性的动态选择和重新选择,其中滤波器的响应时间在良好的信号条件下被最小化并且在弱信号条件下增加以允许增加的滤波器操作。