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    • 2. 发明授权
    • Method and apparatus for generating deterministic approximate weighted finite-state automata
    • 用于产生确定性近似加权有限状态自动机的方法和装置
    • US06266634B1
    • 2001-07-24
    • US09533549
    • 2000-03-23
    • Adam Louis BuchsbaumRaffaele GiancarloJeffery Rex Westbrook
    • Adam Louis BuchsbaumRaffaele GiancarloJeffery Rex Westbrook
    • G10L1514
    • G10L15/08G10L15/19
    • An approximate weighted finite-state automaton can be constructed in place of a weighted finite-state automaton so long as the approximate weighted finite-state automaton maintains a sufficient portion of the original best strings in the weighted finite-state automaton and sufficiently few spurious strings are introduced into the approximate weighted finite-state automaton compared to the weighted finite-state automaton. An approximate weighted finite-state automaton can be created from a non-deterministic weighted finite-state automaton during determinization by discarding the requirement that old states be used in place of new states only when an old state is identical to a new state. Instead, in an approximate weighted finite-state automaton, old states will be used in place of new states when each of the remainders of the new state is sufficiently close to the corresponding remainder of the old state. An error tolerance parameter &tgr; defines whether the remainders of the new state are sufficiently close to the corresponding remainders of the old state. If the remainders of the new state are sufficiently close to the remainders of the old state, a new transition is created from a current state to the old state rather than the new state. Such approximate weighted finite-state automata allow the size of the resulting deterministic finite-state automata to be reduced and can prevent the expansion that would otherwise occur in some deterministic finite-state automata.
    • 可以构造近似加权有限状态自动机来代替加权有限状态自动机,只要近似加权有限状态自动机在加权有限状态自动机中维持原始最佳字符串的足够部分,并且足够少的虚拟字符串 与加权有限状态自动机相比,被引入近似加权有限状态自动机。 在确定期间,可以通过丢弃仅在旧状态与新状态相同的旧状态来代替新状态的要求时,可以通过非确定性加权有限状态自动机来创建近似加权有限状态自动机。 相反,在近似加权有限状态自动机中,当新状态的每个剩余部分足够接近旧状态的相应剩余部分时,将使用旧状态代替新状态。 误差容差参数&tgr 定义新状态的剩余部分是否足够接近旧状态的相应剩余部分。 如果新的国家的剩余部分与旧国家的剩余国家相当接近,那么从现在的国家到旧的国家而不是新的国家就形成了新的转型。 这种近似加权有限状态自动机允许所得到的确定性有限状态自动机的大小减小,并且可以防止否则将在某些确定性有限状态自动机中发生的扩展。
    • 3. 发明授权
    • Method and apparatus for generating deterministic approximate weighted
finite-state automata
    • 用于产生确定性近似加权有限状态自动机的方法和装置
    • US6073098A
    • 2000-06-06
    • US975648
    • 1997-11-21
    • Adam Louis BuchsbaumRaffaele GiancarloJeffery Rex Westbrook
    • Adam Louis BuchsbaumRaffaele GiancarloJeffery Rex Westbrook
    • G10L15/08G10L15/18
    • G10L15/08G10L15/19
    • An approximate weighted finite-state automaton can be constructed in place of a weighted finite-state automaton so long as the approximate weighted finite-state automaton maintains a sufficient portion of the original best strings in the weighted finite-state automaton and sufficiently few spurious strings are introduced into the approximate weighted finite-state automaton compared to the weighted finite-state automaton. An approximate weighted finite-state automaton can be created from a non-deterministic weighted finite-state automaton during determinization by discarding the requirement that old states be used in place of new states only when an old state is identical to a new state. Instead, in an approximate weighted finite-state automaton, old states will be used in place of new states when each of the remainders of the new state is sufficiently close to the corresponding remainder of the old state. An error tolerance parameter .tau. defines whether the remainders of the new state are sufficiently close to the corresponding remainders of the old state. If the remainders of the new state are sufficiently close to the remainders of the old state, a new transition is created from a current state to the old state rather than the new state. Such approximate weighted finite-state automata allow the size of the resulting deterministic finite-state automata to be reduced and can prevent the expansion that would otherwise occur in some deterministic finite-state automata.
    • 可以构造近似加权有限状态自动机来代替加权有限状态自动机,只要近似加权有限状态自动机在加权有限状态自动机中维持原始最佳字符串的足够部分,并且足够少的虚拟字符串 与加权有限状态自动机相比,被引入近似加权有限状态自动机。 在确定期间,可以通过丢弃仅在旧状态与新状态相同的旧状态来代替新状态的要求时,可以通过非确定性加权有限状态自动机来创建近似加权有限状态自动机。 相反,在近似加权有限状态自动机中,当新状态的每个剩余部分足够接近旧状态的相应剩余部分时,将使用旧状态代替新状态。 容差参数tau定义新状态的剩余部分是否足够接近旧状态的相应剩余部分。 如果新的国家的剩余部分与旧国家的剩余国家相当接近,那么从现在的国家到旧的国家而不是新的国家就形成了新的转型。 这种近似加权有限状态自动机允许所得到的确定性有限状态自动机的大小减小,并且可以防止否则将在某些确定性有限状态自动机中发生的扩展。
    • 6. 发明授权
    • System and method for selecting training text
    • 选择训练文本的系统和方法
    • US6038533A
    • 2000-03-14
    • US499159
    • 1995-07-07
    • Adam Louis BuchsbaumJan Pieter VanSanten
    • Adam Louis BuchsbaumJan Pieter VanSanten
    • G10L13/02G10L13/08G10L5/02G10L4/00
    • G10L13/027G10L13/04
    • A system and method are described for determining a near-optimum subset of data, based on a selected model, from a large corpus of data. Sets of feature vectors corresponding to natural or other preselected divisions of the data corpus are mapped into matrices representative of such divisions. The invention operates to find a submatrix of full rank formed as a union of one or more of those division-based matrices. A greedy algorithm utilizing Gram-Schmidt orthonormalization operates on the division matrices to find a near optimum submatrix and in a time bound representing a substantial improvement over prior-art methods. An important application of the invention is the selection of a small number of sentences from a corpus of a very large number of such sentences from which the parameters of a duration model for speech synthesis can be estimated.
    • 描述了一种系统和方法,用于基于来自大量数据的语料库,基于所选择的模型来确定数据的近最佳子集。 对应于数据语料库的自然或其他预选分割的特征向量的集合被映射到表示这种分割的矩阵中。 本发明操作以找到形成为这些基于分割的矩阵中的一个或多个的联合的完整秩的子矩阵。 使用Gram-Schmidt正交归一化的贪心算法对分割矩阵进行操作以找到接近最优子矩阵,并且在时间上表示相对于现有技术方法的显着改进。 本发明的一个重要应用是从大量这样的句子的语料库中选择少量的句子,由此可以估计用于语音合成的持续时间模型的参数。
    • 7. 发明授权
    • Data storage technique
    • 数据存储技术
    • US08065348B1
    • 2011-11-22
    • US12380268
    • 2009-02-25
    • Adam Louis BuchsbaumKiem-Phong Vo
    • Adam Louis BuchsbaumKiem-Phong Vo
    • G06F17/30
    • G06F17/30076G06F3/0643G06F9/542G06F2209/542
    • A preload library partitions certain files into segments and transforms the data of the files on a segment by segment basis, each independently of the other. The transformed segments are then stored as part of a transformed file, with each segment corresponding to a bag containing a chunk (of transformed data) and a gap which permits the chunks to grow when data of the segment is modified during a write operation. The bags are followed by a chunk map which contains metadata defining the compressed version of each segment. The preload library intercepts system calls from applications to the OC specifying access to specific segments of a transformed file. The preload library identifies the chunks corresponding to the specified segments, retrieves and reverses the transform on those chunks and passes the data to the application requesting it. For a system call to write data to certain segments, the data is modified and re-transformed by the library before being written back to disk. A preload library provides improved random access into transformed (e.g. compressed, encrypted, etc.) files.
    • 预加载库将某些文件分割成段,并逐段转换文件的数据,每个文件分别独立于另一个。 变换的段然后被存储为变换文件的一部分,每个段对应于包含块(变换数据)的行李,以及允许块在写入操作期间数据被修改时允许块增长的间隙。 行李后面是一个块图,其中包含定义每个段的压缩版本的元数据。 预加载库拦截从应用程序到OC的系统调用,指定访问转换文件的特定段。 预加载库标识对应于指定段的块,检索并反转这些块上的变换,并将数据传递给请求它的应用程序。 对于将数据写入某些段的系统调用,数据在被写回磁盘之前被库修改和重新转换。 预加载库提供改进的随机访问到变换(例如压缩,加密等)文件。
    • 9. 发明授权
    • Preload library for transparent file transformation
    • 预加载库进行透明文件转换
    • US07536418B2
    • 2009-05-19
    • US10754994
    • 2004-01-10
    • Adam Louis BuchsbaumKiem-Phong Vo
    • Adam Louis BuchsbaumKiem-Phong Vo
    • G06F17/30
    • G06F17/30076G06F3/0643G06F9/542G06F2209/542
    • A preload library partitions certain files into segments and transforms the data of the files on a segment by segment basis, each independently of the other. The transformed segments are then stored as part of a transformed file, with each segment corresponding to a bag containing a chunk (of transformed data) and a gap which permits the chunks to grow when data of the segment is modified during a write operation. The bags are followed by a chunk map which contains metadata defining the compressed version of each segment. The preload library intercepts system calls from applications to the OC specifying access to specific segments of a transformed file. The preload library identifies the chunks corresponding to the specified segments, retrieves and reverses the transform on those chunks and passes the data to the application requesting it. For a system call to write data to certain segments, the data is modified and re-transformed by the library before being written back to disk. A preload library provides improved random access into transformed (e.g. compressed, encrypted, etc.) files.
    • 预加载库将某些文件分割成段,并逐段转换文件的数据,每个文件分别独立于另一个。 变换的段然后被存储为变换文件的一部分,每个段对应于包含块(变换数据)的行李,以及允许块在写入操作期间数据被修改时允许块增长的间隙。 行李后面是一个块图,其中包含定义每个段的压缩版本的元数据。 预加载库拦截从应用程序到OC的系统调用,指定访问转换文件的特定段。 预加载库标识对应于指定段的块,检索并反转这些块上的变换,并将数据传递给请求它的应用程序。 对于将数据写入某些段的系统调用,数据在被写回磁盘之前被库修改和重新转换。 预加载库提供改进的随机访问到变换(例如压缩,加密等)文件。