Abstract: An apparatus and method for recommending a communication party according to a user context in an MS, in which log information received and stored in the MS is retrieved, current context information about the MS is estimated using the log information, similarities of all communication parties stored in a phonebook of the MS are calculated, and communication parties are recommended by comparing the similarities.

Abstract: A method and apparatus for performing queriable XML compression and queries related to a compressed XML document are disclosed. In the method, information, including at least the frequencies of the respective tags of XML data, the type information of data values and data value-related statistical information is collected. Thereafter, the type information of data values of elements is inferred according to tags using an automatic data type inference engine algorithm. Reverse arithmetic encoding is performed on the tags and paths of elements. The data values are encoded based on the inferred type information.

Abstract: There is provided a wide-band direct conversion transmitting apparatus including: a local oscillation unit generating first, second, and third oscillation signal pairs each including a pair of signals having a phase difference of 90°; an image rejection mixer unit mixing baseband transmission signals including an I signal and a Q signal having a phase difference of 90° with the first oscillation signal pair; a harmonic rejection mixer unit mixing each of the first, second, and third oscillation signal pairs with the baseband transmission signals; and an output signal selecting unit selecting output signals from the image rejection mixer unit or from the harmonic rejection mixer unit.

Abstract: Provided is a continuous query processing apparatus and method using operation sharable among multiple queries on an Extensible Markup Language (XML) data stream. The apparatus, includes: a storing unit for storing a sharable operation result; a syntactic analyzation unit for performing a syntactic analysis on the registered continuous query; a semantic analyzation unit for analyzing the meaning upon receiving a syntactic analysis result from the syntactic analyzation unit; a sharable operation extracting unit for extracting a sharable operation upon receiving a semantic analysis result from the semantic analyzation unit; and a query execution unit for storing the result of the extracted sharable operation in the storing unit and performing the continuous queries on an XML data stream based on the result of the semantic analysis and the result of the sharable operation stored in the storing unit.

Abstract: A method of processing a query about an Extensible Markup Language (XML) data. The XML query processing method includes the first step of representing the XML data in the form of an XML graph, the second step of creating and updating an Adaptive Path indEX (APEX) based on frequently used paths extracted from previously processed XML queries and the XML graph, and the third step of processing an XML query using the APEX. The XML query processing is capable of improving the performance of processing the query by extracting frequently used paths from path expressions having been used as queries for XML data and updating the APEX through the use of the frequently used paths.

Abstract: A method and apparatus for performing queriable XML compression and queries related to a compressed XML document are disclosed. In the method, information, including at least the frequencies of the respective tags of XML data, the type information of data values and data value-related statistical information is collected. Thereafter, the type information of data values of elements is inferred according to tags using an automatic data type inference engine algorithm. Reverse arithmetic encoding is performed on the tags and paths of elements. The data values are encoded based on the inferred type information.

Abstract: Disclosed herein is a method of processing a query about an Extensible Markup Language (XML) data. The XML query processing method of the present invention includes the first step of representing the XML data in the form of an XML graph, the second step of creating and updating an Adaptive Path indEX (APEX) based on frequently used paths extracted from previously processed XML queries and the XML graph, and the third step of processing an XML query using the APEX. The XML query processing method of the present invention is capable of improving the performance of processing the query by extracting frequently used paths from path expressions having been used as queries for XML data and updating the APEX through the use of the frequently used paths.