Abstract: Disclosed is a speaker driver from which surrounding (suspension) has been omitted, including a magnet unit disposed in a set form, a vibration unit disposed adjacent to the magnet unit and generating a sound through vibration, and a winding unit disposed between the magnet unit and the vibration unit in a winding shape, generating magnetism in a first direction or a second direction which is a direction opposite to the first direction when power is applied to the winding unit, and vibrating the vibration unit by applying, to the vibration unit, a force generated in association with magnetism of the magnet unit.

Abstract: Provided is a speaker driver. The speaker driver includes a pair of yoke members that is arranged to face each other so as to have empty spaces provided on inner sides thereof and fixed to a stand base, two or more magnets that are mounted on inner side surfaces of the yoke members, and a rotating member that is provided with a voice coil disposed in parallel in a direction facing the magnet and disposed between the yoke members, and has one end rotatably coupled to the yoke members and the other end provided with a diaphragm coupling part to which a diaphragm is coupled.

Abstract: Provided is a speaker driver. The speaker driver includes a pair of yoke members that is arranged to face each other so as to have empty spaces provided on inner sides thereof and fixed to a stand base, two or more magnets that are mounted on inner side surfaces of the yoke members, and a rotating member that is provided with a voice coil disposed in parallel in a direction facing the magnet and disposed between the yoke members, and has one end rotatably coupled to the yoke members and the other end provided with a diaphragm coupling part to which a diaphragm is coupled.

Abstract: Disclosed is a speaker driver from which surrounding (suspension) has been omitted, including a magnet unit disposed in a set form, a vibration unit disposed adjacent to the magnet unit and generating a sound through vibration, and a winding unit disposed between the magnet unit and the vibration unit in a winding shape, generating magnetism in a first direction or a second direction which is a direction opposite to the first direction when power is applied to the winding unit, and vibrating the vibration unit by applying, to the vibration unit, a force generated in association with magnetism of the magnet unit.

Abstract: Provided are systems, apparatuses, methods and non-transitory computer readable media for efficiently processing and analyzing big data using a columnar index data format. A method of processing big data at a processing system configured as a computer may include generating a dictionary by sorting data based on a column unit of the big data; classifying the sorted data into one or more data blocks for each dictionary based on a data size; generating an index that includes first data values of the respective data blocks in order of the data blocks, for each dictionary; and generating a column ID for each column based on row order of the big data.

Abstract: Disclosed are method and system for determining the validity of a command line, comprising the steps of: maintaining a first IP address database including first IP address information or at least one terminal specification information associated with the first IP address information, in which the first IP address information includes IP address information of a proxy server or that of a terminal using a dynamic IP address; receiving a command line from a terminal of a user; extracting a request content, second IP address information, or second terminal specification information included in the command line; generating log information including the request content, the second IP address information, the second terminal specification information or input time point information with respect to the input time point of the command line recording the log information associated with the command line in a log database; identifying the terminal by referring to the first IP address database and the log database; and de

Abstract: Provided are systems, apparatuses, methods and non-transitory computer readable media for efficiently processing and analyzing big data using a columnar index data format. A method of processing big data at a processing system configured as a computer may include generating a dictionary by sorting data based on a column unit of the big data; classifying the sorted data into one or more data blocks for each dictionary based on a data size; generating an index that includes first data values of the respective data blocks in order of the data blocks, for each dictionary; and generating a column ID for each column based on row order of the big data.

Abstract: Disclosed are method and system for determining the validity of a command line, comprising the steps of: maintaining a first IP address database including first IP address information or at least one terminal specification information associated with the first IP address information, in which the first IP address information includes IP address information of a proxy server or that of a terminal using a dynamic IP address; receiving a command line from a terminal of a user; extracting a request content, second IP address information, or second terminal specification information included in the command line; generating log information including the request content, the second IP address information, the second terminal specification information or input time point information with respect to the input time point of the command line recording the log information associated with the command line in a log database; identifying the terminal by referring to the first IP address database and the log database; and de

Abstract: A method and system of processing an invalid click is provided. The method includes the steps of: verifying an invalid click Internet Protocol (IP) address of a user terminal generating the invalid click with respect to an advertisement; associating the invalid click IP address with the advertisement, and registering and maintaining the invalid click IP address in an invalid click list when the invalid click IP address is verified; and providing the user terminal of the invalid click IP address with a result page other than the advertisement with respect to an advertisement exposure request using the invalid click IP address. When a number of clicks is greater than or equal to a predetermined number of clicks with respect to the same advertisement using the same IP address over a predetermined time, the step of verifying verifies the same IP address as the invalid click IP address.

Abstract: Disclosed are method and system for determining the validity of a command line, comprising the steps of: maintaining a first IP address database including first IP address information or at least one terminal specification information associated with the first IP address information, in which the first IP address information includes IP address information of a proxy server or that of a terminal using a dynamic IP address; receiving a command line from a terminal of a user; extracting a request content, second IP address information, or second terminal specification information included in the command line; generating log information including the request content, the second IP address information, the second terminal specification information or input time point information with respect to the input time point of the command line; recording the log information associated with the command line in a log database; identifying the terminal by referring to the first IP address database and the log database; and d

Abstract: A computer-implemented charging control method includes determining an expected click count for an advertisement provided on a web page; obtaining a generated click count for the advertisement, using the computer, the generated click count including a number of clicks on the advertisement during a period of time; generating an invoice for the advertisement, based on the expected click count and the generated click count; and transmitting the invoice to an advertiser terminal.

Abstract: Provided are a method for billing for an online advertisement, a system thereof and a computer-readable recording medium. The method for billing for an online advertisement includes: extracting an advertisement publication result based on a selection history of a plurality of users for advertisement information of an advertiser; providing the advertisement publication result to the advertiser; receiving basic self-billing information for determining an billing object from an advertiser terminal; performing the billing for an published online advertisement based on the received basic self-billing information.

Abstract: The present invention relates to a method that enables an advertiser to show self-billing information when providing an advertising service, a system thereof, and a computer-readable recording medium. According to one aspect of the invention, provided is an advertising method which comprises: a step for providing the advertiser with a result of online advertising, a step for receiving from the advertiser, based on the result of online advertising, the self-billing information for the online advertisements that have been already published, and a step for processing the billing for the published advertisements based on the self-billing information.

Abstract: Provided are a system and method for providing a search result based on a similarity between contents and a system and method for providing an advertisement. The search result providing system may include: a content retrieval unit to retrieve a content corresponding to a user query; a similar content verification unit to verify a similar content based on at least one portion of the retrieved content; and a content provider to provide the retrieved content and the similar content in response to the user query.

Abstract: There are provided a method and system for determining the validity of a command, which includes: a first step of receiving a command including a predetermined query from a terminal of a user; a second step of generating log information associated with the command, in which the log information includes at least one of the query included in the command, input time point information on a time point of inputting the command, and a network address of the terminal; a third step of recording the log information in a log database; a fourth step of calculating a first determination result with respect to the validity of the command according to a predetermined first determination standard; a fifth step of including identification information determined according to the first determination result in the log information and recording in the log database; a sixth step of periodically searching for log information recorded for a first period with reference to the log database; and a seventh step of determining again the

Abstract: A method and system of processing an invalid click is provided. The method includes the steps of: verifying an invalid click Internet Protocol (IP) address of a user terminal generating the invalid click with respect to an advertisement; associating the invalid click IP address with the advertisement, and registering and maintaining the invalid click IP address in an invalid click list when the invalid click IP address is verified; and providing the user terminal of the invalid click IP address with a result page other than the advertisement with respect to an advertisement exposure request using the invalid click IP address. When a number of clicks is greater than or equal to a predetermined number of clicks with respect to the same advertisement using the same IP address over a predetermined time, the step of verifying verifies the same IP address as the invalid click IP address.

Abstract: A method of managing an advertisement and a system for executing the method are provided.

Abstract: Disclosed is a method for determining the validity of a command line, the method including the steps of: maintaining a permit database including information on a permitted network address and at least one blocked keyword associated with the permitted network address; receiving a command line including a request content from a terminal of a user; extracting network address information or the request content included in the command line; determining whether the extracted network address information is permitted network address information by referring to the permit database; determining whether the request content has relation with the at least one blocked keyword associated with the permitted network address information by referring to the permit database, in case that it is determined that the extracted network address information is permitted network address information; and performing validity determination with respect to the command line in accordance with a predetermined determination method, in case tha

Abstract: Disclosed are method and system for determining the validity of a command line, comprising the steps of: maintaining a first IP address database including first IP address information or at least one terminal specification information associated with the first IP address information, in which the first IP address information includes IP address information of a proxy server or that of a terminal using a dynamic IP address; receiving a command line from a terminal of a user; extracting a request content, second IP address information, or second terminal specification information included in the command line; generating log information including the request content, the second IP address information, the second terminal specification information or input time point information with respect to the input time point of the command line; recording the log information associated with the command line in a log database; identifying the terminal by referring to the first IP address database and the log database; and d

Abstract: There are provided a method and system for determining the validity of a command, which includes: a first step of receiving a command including a predetermined query from a terminal of a user; a second step of generating log information associated with the command, in which the log information includes at least one of the query included in the command, input time point information on a time point of inputting the command, and a network address of the terminal; a third step of recording the log information in a log database; a fourth step of calculating a first determination result with respect to the validity of the command according to a predetermined first determination standard; a fifth step of including identification information determined according to the first determination result in the log information and recording in the log database; a sixth step of periodically searching for log information recorded for a first period with reference to the log database; and a seventh step of determining again the