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公开(公告)号：US20050147240A1
公开(公告)日：2005-07-07
申请号：US10752154
申请日：2004-01-05
CPC分类号： G06F21/60 , G06F21/6227 , G06F21/6245
摘要： A system, method, and computer program product to automatically eliminate the distribution information available for reconstruction from a disguised dataset. The invention flattens input numerical values into a substantially uniformly distributed dataset, then maps the uniformly distributed dataset into equivalent data in a target distribution. The invention allows the incremental encryption of new values in an encrypted database while leaving existing encrypted values unchanged. The flattening comprises (1) partitioning, (2) mapping, and (3) saving auxiliary information about the data processing, which is encrypted and not updated. The partitioning is MDL based, and includes a growth phase for dividing a space into fine partitions and a prune phase for merging some partitions together.
摘要翻译： 一种系统，方法和计算机程序产品，用于自动从伪装的数据集中消除可用于重建的分发信息。 本发明将输入数值平坦化为基本上均匀分布的数据集，然后将均匀分布的数据集映射到目标分布中的等效数据。 本发明允许对加密数据库中的新值进行增量加密，同时保留现有加密值。 扁平化包括（1）划分，（2）映射和（3）保存关于被加密且未更新的数据处理的辅助信息。 分区是基于MDL，并且包括用于将空间分割成精细分区的生长阶段和用于将一些分区合并在一起的剪枝阶段。
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公开(公告)号：US06633885B1
公开(公告)日：2003-10-14
申请号：US09477257
申请日：2000-01-04
IPC分类号： G06F1730
CPC分类号： G06F17/30864 , Y10S707/99933 , Y10S707/99935 , Y10S707/99943
摘要： A system and method for exporing a web-accessible database includes providing a GUI that a user can manipulate to quickly modify the results of a query to expand or contract the results set, without requiring additional querying. Attribute controls can be manipulated to impose restrictions on the results set, including by designating example records the attributes of which are used to restrict the records displayed to the user. Only records that can be displayed are instantiated, to further increase the speed of the system.
摘要翻译： 用于退出web可访问数据库的系统和方法包括提供用户可以操纵以在不需要额外查询的情况下快速修改查询结果以扩展或收缩结果集的GUI。 可以操纵属性控件对结果集施加限制，包括通过指定用于限制向用户显示的记录的属性的示例记录。 只有可以显示的记录被实例化，以进一步提高系统的速度。
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63.发明授权Method and system for building a decision-tree classifier from privacy-preserving data 有权从隐私保护数据构建决策树分类器的方法和系统公开(公告)号：US06546389B1
公开(公告)日：2003-04-08
申请号：US09487643
申请日：2000-01-19
IPC分类号： G06F1730
CPC分类号： G06Q30/02 , Y10S707/99936 , Y10S707/99942 , Y10S707/99943
摘要： A system and method for mining data while preserving a user's privacy includes perturbing user-related information at the user's computer and sending the perturbed data to a Web site. At the Web site, perturbed data from many users is aggregated, and from the distribution of the perturbed data, the distribution of the original data is reconstructed, although individual records cannot be reconstructed. Based on the reconstructed distribution, a decision tree classification model or a Naive Bayes classification model is developed, with the model then being provided back to the users, who can use the model on their individual data to generate classifications that are then sent back to the Web site such that the Web site can display a page appropriately configured for the user's classification. Or, the classification model need not be provided to users, but the Web site can use the model to, e.g., send search results and a ranking model to a user, with the ranking model being used at the user computer to rank the search results based on the user's individual classification data.
摘要翻译： 用于在保护用户隐私的同时挖掘数据的系统和方法包括扰乱用户计算机上的用户相关信息并将干扰的数据发送到网站。 在网站上，来自许多用户的扰动数据被聚合，并且从干扰数据的分布中，重构原始数据的分布，尽管不能重建个体记录。 基于重构分布，开发了决策树分类模型或朴素贝叶斯分类模型，然后将模型提供给用户，他们可以使用模型对其个人数据生成分类，然后将其发送回 网站，使得网站可以显示适当地为用户分类配置的页面。 或者，不需要向用户提供分类模型，但是网站可以使用该模型来例如向用户发送搜索结果和排名模型，在用户计算机上使用排名模型对搜索结果进行排名 基于用户的个人分类数据。
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公开(公告)号：US06457327B1
公开(公告)日：2002-10-01
申请号：US09567164
申请日：2000-05-08
IPC分类号： F25J300
CPC分类号： C01B21/0832 , B01D53/002 , B01D53/1493 , B01D2257/2027 , B01D2257/2066 , Y02P20/154
摘要： The process removes from a diluted gas one or more fluorine compounds present at a first concentration in the diluted gas and concentrates the fluorine compounds. This is done by directly contacting the diluted gas with a cryogenic liquid having a temperature less than or equal to about −150° F., thereby producing a vapor lean in the fluorine compounds and liquid enriched with the fluorine compounds at a second concentration. The second concentration is greater than the first concentration.
摘要翻译： 该过程从稀释气体中除去在稀释气体中以第一浓度存在的一种或多种氟化合物并浓缩氟化合物。 这是通过将稀释气体与温度低于或等于约-150°F的低温液体直接接触来进行的，从而在氟化合物中产生蒸汽贫和富含氟化合物的液体以第二浓度。 第二浓度大于第一浓度。
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公开(公告)号：US06383257B1
公开(公告)日：2002-05-07
申请号：US09542995
申请日：2000-04-04
IPC分类号： B01D5322
CPC分类号： B01D53/229 , B01D53/002 , B01D53/04 , B01D53/053 , B01D53/14 , B01D2256/24 , B01D2258/0216 , B01D2259/40001 , Y02C20/10 , Y02C20/30
摘要： An apparatus and process for separating perfluorocarbon compounds from a gas mixture passes an incoming stream of a gas into a cold trap, the gas stream including a plurality of perfluorocarbon compounds. The gas mixture is cooled within the cold trap to a temperature below −100° C. to produce a condensate that is enriched in at least one perfluorocarbon compound and a non-condensed stream from which the condensate was separated. The condensate is withdrawn from the cold trap. The condensate may be withdrawn by warming the cold trap to vaporize the condensate and thereafter flowing the vaporized condensate into a storage vessel. The non-condensed stream may be vented to the atmosphere, re-circulated into the cold trap or flowed through subsequent separation processes to extract additional perfluorocarbon compounds.
摘要翻译： 用于从气体混合物中分离全氟化碳化合物的装置和方法将气体的进入流通入冷阱，该气流包括多个全氟化碳化合物。 将气体混合物在冷阱内冷却至低于-100℃的温度，以产生富含至少一种全氟化碳化合物的冷凝物和从其中分离出冷凝物的非冷凝物流。 冷凝水从冷阱中取出。 可以通过加热冷阱来蒸发冷凝物，然后将蒸发的冷凝物流入储存容器中，从而将冷凝物抽出。 非冷凝流可以排放到大气中，再循环到冷阱中或者通过随后的分离过程流出以提取另外的全氟化碳化合物。
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公开(公告)号：US06347531B1
公开(公告)日：2002-02-19
申请号：US09415636
申请日：1999-10-12
IPC分类号： F25J300
CPC分类号： F25J1/0055 , F25J1/0022 , F25J1/0212 , F25J1/0291 , F25J1/0292 , F25J2220/60
摘要： A method of gas liquefaction wherein the refrigeration to cool and liquefy an essentially water-free feed gas is provided by a single recirculating mixed refrigerant cycle in which refrigeration is provided by the vaporization of two mixed refrigerant streams of different compositions at a lower and higher pressure levels respectively. A lower pressure level vaporizing refrigerant cools the feed gas stream in a first cooling zone and a higher pressure level vaporizing refrigerant further cools and condenses the cooled gas in a second cooling zone to provide the final liquid product. The lower pressure level vaporizing refrigerant is provided by one or more liquids obtained by ambient cooling of compressed mixed refrigerant vapor. The vaporized lower pressure level refrigerant can be returned to the refrigerant compressor at a temperature below ambient, without further warming, and this cool refrigerant is compressed and combined with the vaporized higher pressure level refrigerant, which is returned at about ambient temperature.
摘要翻译： 一种气体液化方法，其中用于冷却和液化基本上无水的进料气体的制冷是通过单个循环混合制冷剂循环提供的，其中通过在较低和较高压力下蒸发不同组成的两种混合制冷剂流来提供制冷 级别。 较低压力水平的蒸发制冷剂在第一冷却区域中冷却进料气流，并且较高压力水平的蒸发制冷剂进一步冷却并冷凝第二冷却区中的冷却气体以提供最终的液体产物。 低压级蒸发制冷剂由通过压缩混合制冷剂蒸汽的环境冷却而获得的一种或多种液体提供。 蒸发的低压级制冷剂可以在低于环境温度的温度下返回到制冷剂压缩机，而不会进一步升温，并且该冷却的制冷剂被压缩并与在大约环境温度下返回的蒸发的高压级制冷剂组合。
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67.发明授权公开(公告)号：US06276168B1
公开(公告)日：2001-08-21
申请号：US09566075
申请日：2000-05-08
申请人： Zbigniew Tadeusz Fidkowski , John Frederick Cirucci , Rakesh Agrawal , Shyam Ramchand Suchdeo , Steven Ray Auvil
发明人： Zbigniew Tadeusz Fidkowski , John Frederick Cirucci , Rakesh Agrawal , Shyam Ramchand Suchdeo , Steven Ray Auvil
IPC分类号： F25J100
CPC分类号： C01B21/0832 , B01D3/146 , Y10S62/918
摘要： The process recovers NF3 from a multicomponent fluid containing NF3, one or more components less volatile than NF3, and one or more components more volatile than NF3. The process uses a first distillation column and a second distillation column, each distillation column having a top and a bottom. The process includes the following steps: feeding the multicomponent fluid to the first distillation column at a first feed location below the top of the first distillation column; feeding a cryogenic liquid to the first or second distillation column adjacent the top of the first or second distillation column; withdrawing a mixture containing NF3 from the first distillation column; feeding the mixture to the second distillation column at a second feed location; separating NF3 from the mixture in the second distillation column; and removing a stream of NF3 from the second distillation column.
摘要翻译： 该过程从含有NF3的多组分流体，一种或多种不如NF3的挥发性成分的一种或多种成分以及比NF3更易挥发的一种或多种成分回收NF3。 该方法使用第一蒸馏塔和第二蒸馏塔，每个蒸馏塔具有顶部和底部。 该方法包括以下步骤：在第一蒸馏塔顶部的第一进料位置将多组分流体进料至第一蒸馏塔; 将第一或第二蒸馏塔的低温液体与邻近第一或第二蒸馏塔的顶部相加; 从第一蒸馏塔中取出含有NF 3的混合物; 在第二进料位置将混合物进料到第二蒸馏塔; 从第二蒸馏塔中的混合物中分离出NF3; 并从第二蒸馏塔中除去NF 3流。
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公开(公告)号：US06263700B1
公开(公告)日：2001-07-24
申请号：US09389267
申请日：1999-09-03
申请人： Rakesh Agrawal , Jianguo Xu
发明人： Rakesh Agrawal , Jianguo Xu
IPC分类号： F25J302
CPC分类号： B01D3/146 , F25J3/0219 , F25J3/0233 , F25J3/0257 , F25J3/0261 , F25J3/0295 , F25J3/04309 , F25J3/044 , F25J3/04412 , F25J3/04418 , F25J3/0443 , F25J3/04666 , F25J3/04709 , F25J3/04715 , F25J3/04793 , F25J2200/02 , F25J2200/04 , F25J2200/30 , F25J2200/34 , F25J2200/50 , F25J2200/52 , F25J2200/54 , F25J2200/90 , F25J2210/12 , F25J2235/02 , F25J2235/42 , F25J2245/02 , F25J2245/42 , F25J2290/40
摘要： An efficient multieffect distillation process separates multicomponent mixtures containing three or more components into product streams each enriched in one of the components. The distillation process consists of at least two distillation columns that are thermally linked. A mixture stream that can be the given feed or a stream recovered from another distillation column and containing three or more components is fed to one of the thermally linked distillation columns and at least two submixture streams are produced from this distillation column and transferred to other distillation columns for further distillation. At least one of the submixture streams is transferred to the other thermally linked distillation column. One submixture stream is lean in the least volatile component of the mixture feed and the other submixture stream is lean in the most volatile component of the mixture feed.
摘要翻译： 有效的多效蒸馏方法将含有三种或更多种组分的多组分混合物分离成各自富含一种组分的产物流。 蒸馏过程由至少两个热连接的蒸馏塔组成。 将可以是给定进料或从另一个蒸馏塔回收并含有三种或更多种组分的混合物料流进料到一个热连接的蒸馏塔中，并从该蒸馏塔产生至少两种亚混合物流并转移至其它蒸馏 塔用于进一步蒸馏。 至少一个副混合流被转移到另一个热连接的蒸馏塔。 一个混合物料流在混合物进料的最不易挥发的组分中是贫的，而另一个混合物流在混合物进料的最易挥发组分中是贫的。
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69.发明授权公开(公告)号：US06240744B1
公开(公告)日：2001-06-05
申请号：US09459561
申请日：1999-12-13
IPC分类号： F25J300
CPC分类号： F25J3/04703 , B01D3/14 , B01D3/141 , B01D3/146 , F25J3/04412 , F25J3/04666 , F25J3/04678 , F25J3/04733 , F25J3/04939 , F25J2205/60 , F25J2205/80 , F25J2205/82 , F25J2235/58 , F25J2245/58 , Y10S62/905 , Y10S62/924
摘要： A process separates a multicomponent feed by distillation into at least one stream enriched in the most volatile component, one stream enriched in the least volatile component, and one stream enriched in a component of intermediate volatility. In one embodiment, the process produces an argon-enriched stream from a cryogenic air separation process. The distillation system includes at least one distillation column that produces a nitrogen-enriched stream from the top of the column, an oxygen product stream from the bottom of the column, and an argon-enriched stream from a partitioned section. The geometry of the partitioned section minimizes vapor and liquid distribution, and includes a vertical separating element and an end separating element to isolate the partitioned section from the intermediate distillation section. The equivalent diameter (De) of the partitioned section is at least 60% of the ideal diameter (Di) of the partitioned section, wherein the equivalent diameter is defined as four times the cross sectional flow area enclosed by the vertical separating element divided by the perimeter formed by the vertical separating element, and the ideal diameter (Di) is the diameter of a circle which has the same cross sectional flow area as that cross sectional flow area which is enclosed by the vertical separating element.
摘要翻译： 一种方法是通过蒸馏将多组分进料分离成富含最易挥发组分的至少一种物流，富含最不易挥发组分的一种物流和富含中等挥发性组分的一种物流。 在一个实施方案中，该方法从低温空气分离过程产生富氩流。 蒸馏系统包括至少一个蒸馏塔，其从塔的顶部产生富氮流，来自塔底的氧产物流和来自分隔区的富氩流。 分隔部分的几何形状使蒸汽和液体分布最小化，并且包括垂直分离元件和端部分离元件以将分隔部分与中间蒸馏部分隔离。 分隔部分的当量直径（De）为分隔部分的理想直径（Di）的至少60％，其中等效直径定义为垂直分离元件所包围的横截面流动面积的四倍 由垂直分离元件形成的周边，理想直径（Di）是与由垂直分离元件包围的横截面积面积相同的横截面积面积的圆的直径。
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70.发明授权Method and system for generating a decision-tree classifier in parallel in a multi-processor system 有权在多处理器系统中并行生成决策树分类器的方法和系统
公开(公告)号：US6138115A
公开(公告)日：2000-10-24
申请号：US245765
申请日：1999-02-05
IPC分类号： G06F17/30
CPC分类号： G06F17/30705 , G06F17/30625 , Y10S707/962 , Y10S707/966 , Y10S707/968 , Y10S707/99933 , Y10S707/99936 , Y10S707/99937 , Y10S707/99944
摘要： A method and system are disclosed for generating a decision-tree classifier in parallel in a multi-processor system, from a training set of records. The method comprises the steps of: partitioning the records among the processors, each processor generating an attribute list for each attribute, and the processors cooperatively generating a decision tree by repeatedly partitioning the records using the attribute lists. For each node, each processor determines its best split test and, along with other processors, selects the best overall split for the records at that node. Preferably, the gini-index and class histograms are used in determining the best splits. Also, each processor builds a hash table using the attribute list of the split attribute and shares it with other processors. The hash tables are used for splitting the remaining attribute lists. The created tree is then pruned based on the MDL principle, which encodes the tree and split tests in an MDL-based code, and determines whether to prune and how to prune each node based on the code length of the node.
摘要翻译： 公开了一种用于在多处理器系统中从培训记录集并行生成决策树分类器的方法和系统。 该方法包括以下步骤：在处理器之间划分记录，每个处理器为每个属性生成属性列表，并且处理器通过使用属性列表重复分割记录来协同地生成决策树。 对于每个节点，每个处理器确定其最佳分割测试，并与其他处理器一起为该节点上的记录选择最佳的整体分割。 优选地，使用基尼系数索引和类别直方图来确定最佳分割。 此外，每个处理器使用split属性列表构建哈希表，并与其他处理器共享。 散列表用于分割剩余的属性列表。 然后，基于MDL原理修剪创建的树，MDL原理在基于MDL的代码中对树进行编码和分割测试，并根据节点的代码长度确定是否修剪和如何修剪每个节点。
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