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    • 34. 发明授权
    • System and method for personalized search, information filtering, and for generating recommendations utilizing statistical latent class models
    • 用于个性化搜索,信息过滤以及使用统计潜在类模型生成建议的系统和方法
    • US07328216B2
    • 2008-02-05
    • US10639024
    • 2003-08-11
    • Thomas HofmannJan Christian Puzicha
    • Thomas HofmannJan Christian Puzicha
    • G06F17/30
    • G06F17/30699Y10S707/99934Y10S707/99936Y10S707/99942
    • The system implements a novel method for personalized filtering of information and automated generation of user-specific recommendations. The system uses a statistical latent class model, also known as Probabilistic Latent Semantic Analysis, to integrate data including textual and other content descriptions of items to be searched, user profiles, demographic information, query logs of previous searches, and explicit user ratings of items. The system learns one or more statistical models based on available data. The learning may be reiterated once additional data is available. The statistical model, once learned, is utilized in various ways: to make predictions about item relevance and user preferences on un-rated items, to generate recommendation lists of items, to generate personalized search result lists, to disambiguate a users query, to refine a search, to compute similarities between items or users, and for data mining purposes such as identifying user communities.
    • 该系统实现了一种用于个性化过滤信息和自动生成用户特定建议的新方法。 系统使用统计潜在类别模型(也称为概率潜在语义分析)来整合包括要搜索的项目的文本和其他内容描述的数据,用户简档,人口统计信息,先前搜索的查询日志以及项目的显式用户评级 。 系统基于可用数据学习一个或多个统计模型。 一旦有其他数据可以重新学习。 已经学习的统计模型以各种方式被利用:对未评级项目进行项目相关性和用户偏好的预测,以产生项目的推荐列表,生成个性化搜索结果列表,消除用户查询的歧义,以改进 搜索,计算项目或用户之间的相似性,以及数据挖掘目的,如识别用户社区。
    • 36. 发明申请
    • High power excimer laser with a pulse stretcher
    • 具有脉冲担架的大功率准分子激光器
    • US20070280308A1
    • 2007-12-06
    • US11805583
    • 2007-05-23
    • Alexander ErshovJames FerrellThomas HofmannDaniel ReileyChris Remen
    • Alexander ErshovJames FerrellThomas HofmannDaniel ReileyChris Remen
    • H01S3/22
    • H01S3/225H01S3/0057H01S3/03H01S3/034
    • An apparatus and method is disclosed which may comprise a high power excimer or molecular fluorine gas discharge laser DUV light source system which may comprise: a pulse stretcher which may comprise: an optical delay path mirror, an optical delay path mirror gas purging assembly which may comprise: a purging gas supply system directing purging gas across a face of the optical delay line mirror. The optical delay path mirror may comprise a plurality of optical delay path mirrors; the purging gas supply system may direct purging gas across a face of each of the plurality of optical delay line mirrors. The purging gas supply system may comprise: a purging gas supply line; a purging gas distributing and directing mechanism which may direct purging gas across the face of the respective optical delay path mirror.
    • 公开了一种装置和方法,其可以包括高功率准分子或分子氟气体放电激光DUV光源系统,其可以包括:脉冲展宽器,其可以包括:光学延迟路径反射镜,光学延迟路径镜气体清洗组件,其可以 包括:吹扫气体供应系统,其引导净化气体穿过光学延迟线反射镜的表面。 光学延迟路径镜可以包括多个光学延迟路径镜; 净化气体供应系统可以引导净化气体穿过多个光学延迟线反射镜中的每一个的表面。 净化气体供应系统可以包括:净化气体供应管线; 吹扫气体分配和引导机构,其可以将吹扫气体引导通过相应的光学延迟路径反射镜的表面。
    • 38. 发明申请
    • Pyridinium-betain compounds and their use
    • 吡啶鎓 - 甜菜碱化合物及其用途
    • US20060204629A1
    • 2006-09-14
    • US10548416
    • 2003-03-10
    • Imre BlankMartin GrigorovThomas Hofmann
    • Imre BlankMartin GrigorovThomas Hofmann
    • A23L1/226
    • C07H13/00A23L27/2056C07F9/65586
    • The present invention concerns Pyridinium-Betain compounds of the following general formula (A) R1 is H R2 is a chemical group formed by a sugar pentose or hexose ring, substituted at C5 or C6, respectively, with an acid residue taken from the group—phosphoryl, sulfonyl, or carboxyl, and R2 is connected to the pyridaine ring either at C1 or C2 positions R3 is taken from the group consisting of OH, including the ionised form O−, R4 is an aliphatic chain (CH2)n, where n is the chain length in the range from n=0 to n=4, R5 is taken from the group consisting of residues—hydroxy, methoxy, ethoxy, methyl, ethyl, furfurylthio and derivatives, and wherein the counter-ion is taken from the group consisting of sodium, potassium, ammonium, calcium, chloride, carbonate, sulphate, phosphate, and the like.
    • 本发明涉及以下通式(A)的吡啶鎓 - 甜菜碱化合物。R 1是由糖戊糖或己糖环形成的化学基团,其由 C5或C6,其中残基取自基团 - 磷酰基,磺酰基或羧基,R 2和R 2在C1或C2位置R 3连接到吡啶酮环上, / SUB>取自由OH组成的组,包括电离形式,其中R 4是脂族链(CH 2 2 N) 其中n是在n = 0至n = 4的范围内的链长,R 5取自残基羟基,甲氧基,乙氧基 甲基,乙基,糠基硫代和衍生物,其中抗衡离子取自钠,钾,铵,钙,氯化物,碳酸盐,硫酸盐,磷酸盐等。
    • 40. 发明授权
    • Two chamber F2 laser system with F2 pressure based line selection
    • 双室F2激光系统采用F2压力线选择
    • US06798812B2
    • 2004-09-28
    • US10243102
    • 2002-09-13
    • German E. RylovThomas HofmannRichard L. Sandstrom
    • German E. RylovThomas HofmannRichard L. Sandstrom
    • H01S3223
    • H01S3/225H01S3/03H01S3/036H01S3/09702H01S3/1055H01S3/2258H01S3/2308
    • The present invention provides an injection seeded modular gas discharge laser system capable of producing high quality pulsed laser beams at pulse rates of about 4,000 Hz or greater and at pulse energies of about 5 to 10 mJ or greater for integrated outputs of about 20 to 40 Watts or greater. Two separate discharge chambers are provided, one of which is a part of a master oscillator producing a very narrow band seed beam which is amplified in the second discharge chamber. The parameters chamber can be controlled separately permitting optimization of wavelength parameters in the master oscillator and optimization of pulse energy parameters in the amplifying chamber. A preferred embodiment is a F2 laser system configured as a MOPA and specifically designed for use as a light source for integrated circuit lithography. In this preferred embodiment, both of the chambers and the laser optics are mounted on a vertical optical table within a laser enclosure. In the preferred MOPA embodiment, each chamber comprises a single tangential fan providing sufficient gas flow to permit operation at pulse rates of 4000 Hz or greater by clearing debris from the discharge region in less time than the approximately 0.25 milliseconds between pulses. The master oscillator is operated with a fluorine partial pressure and total gas pressure within specified ranges in order to reduce the intensity of the weak line to less than 0.01% of the strong line. Therefore, the need for line selection optical equipment is avoided.
    • 本发明提供一种注射接种的模块化气体放电激光系统,其能够以约4,000Hz或更大的脉冲速率产生高质量的脉冲激光束,并且在约20至40瓦特的集成输出的脉冲能量为约5至10mJ或更大的脉冲能量 或更大。 提供两个单独的放电室,其中之一是主振荡器的一部分,其产生在第二放电室中放大的非常窄的带状晶体束。 可以分别控制参数室,允许在主振荡器中优化波长参数并优化放大室中的脉冲能量参数。 优选实施例是被配置为MOPA并被专门设计用作集成电路光刻的光源的F2激光系统。 在该优选实施例中,腔室和激光光学器件都安装在激光外壳内的垂直光学平台上。 在优选的MOPA实施例中,每个腔室包括单个切向风扇,其通过在比脉冲之间的大约0.25毫秒更短的时间内清除来自放电区域的碎屑来提供足够的气流以允许以4000Hz或更高的脉冲速率操作。 主振荡器以氟分压和总气体压力在指定范围内运行,以将弱线的强度降低到强线的0.01%以下。 因此,避免了线路选择光学设备的需要。