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    • 23. 发明申请
    • EXECUTION OF SEMANTIC QUERIES USING RULE EXPANSION
    • 使用规则扩展的语义查询的执行
    • US20100250576A1
    • 2010-09-30
    • US12416103
    • 2009-03-31
    • Stuart M. BowersChris Demetrios KarkaniasDavid B. Wecker
    • Stuart M. BowersChris Demetrios KarkaniasDavid B. Wecker
    • G06F17/30G06F7/00
    • G06F17/30427G06F17/30407
    • A semantic query may refer to a logical rule, where the rule is defined in terms of constituent expressions. In order to execute the semantic query efficiently, occurrences of the rule may be expanded by replacing the rule with its constituent expressions. Expansion may be performed repeatedly, until only grounded expressions remain. Expressions are grounded when they refer to tables or views that are represented in an underlying database. Once the rule has been reduced to grounded expressions, the semantic query processor may formulate a relational query in terms of the grounded expressions. If the relational query takes into account the various grounded expressions to which the rule reduces, then the portion of the semantic query that refers to the rule may be processed without an excessive number of round trips to the relational database.
    • 语义查询可以指逻辑规则,其中规则是根据组成表达式定义的。 为了有效执行语义查询,可以通过用其组成表达式替换规则来扩展规则的出现。 可以重复执行扩展,直到只剩下接地的表达。 当表达式引用在基础数据库中表示的表或视图时,表达式是基础的。 一旦将规则减少到接地表达式,语义查询处理器可以根据接地表达式制定关系查询。 如果关系查询考虑了规则减少的各种接地表达式,则可以处理引用规则的语义查询的部分,而不会对关系数据库进行过多的往返次数。
    • 28. 发明授权
    • Self-describing data framework
    • 自我描述数据框架
    • US08615404B2
    • 2013-12-24
    • US11678266
    • 2007-02-23
    • Chris Demetrios KarkaniasStephen Edward Hodges
    • Chris Demetrios KarkaniasStephen Edward Hodges
    • G06Q50/00G06F15/18
    • G06Q50/22G06F19/00
    • A system that can enable establishment of a self-describing data network is provided. Generally, the innovation provides a mechanism by which self-describing data can be collected, validated and stored in such a way that permits each data element to be inherently self-describing. The manner in which the data is stored can be analogized to a ‘data chemistry’ whereby data is stored in the smallest meaningful bit (e.g., atom) coupled with descriptive metadata (e.g., tags). In a specific example, the data network maintains health-related data where each element includes a core data element wrapped with descriptive metadata. The descriptive metadata (e.g., tags) can be employed to interrelate the data elements for storage as well as to facilitate efficient traversal of the data network as a whole.
    • 提供了一种能够建立自描述数据网络的系统。 通常,创新提供了一种机制,通过该机制,可以以允许每个数据元素本身自描述的方式收集,验证和存储自描述数据。 存储数据的方式可以类似于“数据化学”,由此将数据存储在与描述性元数据(例如,标签)耦合的最小有意义的位(例如,原子)中。 在具体示例中,数据网络维护健康相关数据,其中每个元素包括用描述性元数据包裹的核心数据元素。 可以使用描述性元数据(例如,标签)来相互关联用于存储的数据元素,并且有助于整体上有效地遍历数据网络。