Abstract: A mechanism for managing ranking information using a sign of a stream tuple generated when stream data is inserted into, or deleted from, a window is provided. A mechanism for generating only the differential information of ranking calculation results, a mechanism for adding ranking information according to a request, an interface for generating and outputting all ranking information from the differential information, a mechanism for generating all ranking calculation results, and an interface for using these mechanisms are provided.

Abstract: In order to make real time and the avoidance of risk compatible according to the contents of processing by an application, an index ID applying module applies an index computed utilizing streams before and after stream data to the stream data, computes the index again according to a stream that varies every moment, applies an index computed based upon the index of the stream data to the result of the processing of the stream data according to a predetermined procedure and outputs it. An application that receives the result of the processing and the index of the result of the processing switches processing depending upon the index.

Abstract: Voice of plural participants during a meeting is obtained and dialogue situations of the participants that change every second are displayed in real time, so that it is possible to provide a meeting visualization system for triggering more positive discussions. Voice data collected from plural voice collecting units associated with plural participants is processed by a voice processing server to extract speech information. The speech information is sequentially input to an aggregation server. A query process is performed for the speech information by a stream data processing unit of the aggregation server, so that activity data such as the accumulation value of speeches of the participants in the meeting is generated. A display processing unit visualizes and displays dialogue situations of the participants by using the sizes of circles and the thicknesses of lines on the basis of the activity data.

Abstract: A stream data processing system capable of highly reliable and highly usable real time data processing, is provided with: (1) a mechanism of copying some or all of stream data, and archiving the stream data in a non-volatile memory to allow real time data and archive data to be used seamlessly; and (2) a mechanism of improving the performance of query processings by using a plurality of stream data processing systems cooperatively.

Abstract: A stream data processing system capable of highly reliable and highly usable real time data processing, is provided with: (1) a mechanism of copying some or all of stream data, and archiving the stream data in a non-volatile memory to allow real time data and archive data to be used seamlessly; and (2) a mechanism of improving the performance of query processings by using a plurality of stream data processing systems cooperatively.

Abstract: An XML document classifying method includes the steps of: classifying a plurality of XML documents stored in a storage unit, depending on whether a specific element/attribute is present in the XML documents and based on the identity of the value of the element/attribute; generating a folder hierarchical expression wherein the XML documents are sorted and arranged into folders; and providing the folder hierarchical expression for a hierarchical file GUI.

Abstract: Provided is a stream data processing method cooperable with external data in real time. By providing a stream predict cache corresponding to a hierarchical cache of relation data predicted as being a data matching target with stream data, the number of accesses to a database is reduced to improve performance. Data to be stored in the stream predict cache is determined based on a characteristic of the stream data input by a user or monitoring information obtained by monitoring the stream data.

Abstract: In a file transfer system, a file stored in a server computer is transmitted to a client computer through a network. A portable mobile apparatus also connectable to the network has a transmission requesting means for requesting the server computer that the user of the mobile apparatus be authenticated and a desired file be transmitted from the server computer to the client computer. The server computer has a communication control unit for transmitting the desired file requested by the mobile apparatus to the client computer after authenticating the user of the mobile apparatus.

Abstract: A stream data processing system restrains the generation of communication traffic in the case of distributing loads by using a plurality of information processing devices. The global query is divided into a plurality of processes. At every divided process, a local query which includes the corresponding process is generated and each local query is set to a query processing device different from each other. In addition, the stream data is transmitted among a plurality of query processing devices in order so as to execute the local query in each query processing device. At this time, the entire stream data does not transmitted among the query processing devices in order. At least a part of the corresponding stream data is stored in a proxy device. When data received from an information processing device located in immediately before does not include the target data of the local query, the query processing device reads the corresponding data from the proxy device and executes the local query.

Abstract: A stream data processing system capable of highly reliable and highly usable real time data processing, is provided with: (1) a mechanism of copying some or all of stream data, and archiving the stream data in a non-volatile memory to allow real time data and archive data to be used seamlessly; and (2) a mechanism of improving the performance of query processings by using a plurality of stream data processing systems cooperatively.

Abstract: A data transfer method realizing a function similar to Unix's FORK by the following operations: allowing a parent process on a server to issue a request for intermission of communication to a process on a client and allowing the process on the client to issue a report of completion of intermission; allowing the parent process to issue, to a child process created on the server and the process on the client, a request for establishment of a new communication line connection between them; and, if the parent process has received data from the process on the client before the establishment of the new connection, coping the data to the child process.

Abstract: An XML document classifying method includes the steps of: classifying a plurality of XML documents stored in a storage unit, depending on whether a specific element/attribute is present in the XML documents and based on the identity of the value of the element/attribute; generating a folder hierarchical expression wherein the XML documents are sorted and arranged into folders; and providing the folder hierarchical expression for a hierarchical file GUI.

Abstract: In a file transfer system, a file stored in a server computer is transmitted to a client computer through a network. A portable mobile apparatus also connectable to the network has a transmission requesting means for requesting the server computer that the user of the mobile apparatus be authenticated and a desired file be transmitted from the server computer to the client computer. The server computer has a communication control unit for transmitting the desired file requested by the mobile apparatus to the client computer after authenticating the user of the mobile apparatus.

Abstract: A data transfer method realizing a function similar to Unix's FORK by the following operations: allowing a parent process on a server to issue a request for intermission of communication to a process on a client and allowing the process on the client to issue a report of completion of intermission; allowing the parent process to issue, to a child process created on the server and the process on the client, a request for establishment of a new communication line connection between them; and, if the parent process has received data from the process on the client before the establishment of the new connection, coping the data to the child process.