摘要:
A method is provided. The method includes in response to a new query or new input data being input, calculating a required minimum number of cycles per unit time which corresponds to the minimum number of cycles per unit time that is required to process the new query or the new input data, selecting a query to execute first, calculating the number of cycles to be processed during the time period set in advance by multiplying the calculated, required minimum number of cycles per unit time with a time period that is allocated to process the selected query or the input data and is set in advance, and putting a system into a dormant state for a remaining period of time in response to the calculated number of cycles being completely executed within the time period set in advance.
摘要:
Provided are a method and apparatus for controlling load shedding for excluding data streams input into a data stream management system (DSMS). A method of selecting data not to be in the data process may be determined. A load shedding factor may also be determined. Data streams of the data process may be processed by applying the method of selecting the data according to the load shedding factor.
摘要:
Provided are method and device for managing a memory in a data stream management system (DSMS) of a portable device. The method includes moving data of a selected memory region that has a low priority to a secondary storage and storing a received data stream in the selected memory region.
摘要:
Provided are an apparatus and method of componentizing a legacy system that reconstructs software components, which are included in the legacy system, as abstract or logical modules according to the association between the components. An apparatus for componentizing a legacy system includes a legacy code analyzing unit which analyzes the association between one or more legacy codes, which are included in the legacy system, a component generating unit which generates data for defining one or more components by referring to the analyzed association, a component analyzing unit which analyzes the association between the components, and a data updating unit which updates the data by referring to the association between the components.
摘要:
An apparatus and method for developing component-based software, and more particularly, an apparatus and method for developing component-based software in order to define an identified component in a component language and reuse the identified component. The apparatus includes a component division module to analyze source code and a build file and to divide the analyzed source code and build file into a build-level component and a functional-level component; an integrity check module to check the integrity of languages defining the build-level component, the functional-level component, and an interface of the functional-level component; and a component combination module to combine one or more build-level components corresponding to one or more functional-level components that form an architecture.
摘要:
An apparatus and a method of optimizing queries through scheduling User Defined Operators (UDOs) in a Data Stream Management System (DSMS), are provided. The apparatus includes a query optimizer configured to receive queries, each of the queries including the UDOs and data streams subject to respective operations of the UDOs, and group the data streams and UDOs into scheduling units, each of the scheduling units including one of the data streams and one of the UDOs. The apparatus further includes a scheduler configured to schedule an execution order in which the scheduling units are executed.
摘要:
An apparatus for managing a bucket range of Locality Sensitive Hash is provided. The apparatus includes a range setting unit configured to set bucket ranges of Locality Sensitive Hash by dividing at least one vector based on distribution of data that are projected to the at least one vector.
摘要:
Provided are an apparatus and method for transmitting only sensor data actually used to process a user request among sensor data received from a sensor when communication restarts between a sensor data management device and a sensor data analysis device. Accordingly, the amount of data transmitted to the sensor data analysis device is reduced. The sensor data analysis device may analyze the sensor data received from the sensor data management device to process the user request.
摘要:
Provided are an apparatus and method for transmitting only sensor data actually used to process a user request among sensor data received from a sensor when communication restarts between a sensor data management device and a sensor data analysis device. Accordingly, the amount of data transmitted to the sensor data analysis device is reduced. The sensor data analysis device may analyze the sensor data received from the sensor data management device to process the user request.
摘要:
Provided are an apparatus and method of componentizing a legacy system that reconstructs software components, which are included in the legacy system, as abstract or logical modules according to the association between the components. An apparatus for componentizing a legacy system includes a legacy code analyzing unit which analyzes the association between one or more legacy codes, which are included in the legacy system, a component generating unit which generates data for defining one or more components by referring to the analyzed association, a component analyzing unit which analyzes the association between the components, and a data updating unit which updates the data by referring to the association between the components.