Abstract: The present disclosure provides a converter controlling apparatus including a plurality of switching devices capable of controlling a pulse width modulation (PWM), the converter controlling apparatus including: an efficiency determiner configured to variably change resistance of a gate terminal, wherein a PWM signal for controlling the PWM of the switching device is applied to a gate terminal based on an amount of current flowing through the converter.

Abstract: A method and system for online transaction using an offline experience. A computer-implemented method may include providing, to an electronic device, an internal image of an offline store registered as an affiliate to an online open market; recognizing a product displayed in the offline store in the internal image; generating a user interface using a virtual object for the product recognized in the internal image; and providing a service associated with a corresponding product with respect to a product selected through the user interface.

Abstract: Disclosed herein is a gate-driving apparatus configured for stably providing a voltage having a negative value to a gate of a switch, including a SiC(silicon carbide)-based FET (Field Effect Transistor), which requires a negative voltage having a negative value to implement a stable OFF state. The gate-driving apparatus includes a negative-voltage application circuit including a Zener diode and a capacitor connected in parallel to the Zener diode, wherein the Zener diode may have a cathode connected to a secondary coil of a pulse transformer and an anode connected to the gate of the switch.

Abstract: A device and a method for controlling a high side DC/DC converter (HDC) of a hybrid vehicle are provided. The switching frequency of the HDC is variably adjusted based on situations of temperatures of an inductor and an IGBT switching element, which constitute the HDC, to maintain a balance between the temperatures of the inductor and the IGBT switching element. Accordingly, temperatures of the inductor and the IGBT switching element are detected, and the switching frequency of the HDC is variably adjusted based on a situation for each temperature of each element to maintain a balance between the temperatures of the inductor and the IGBT switching element, thereby improving the utilization rate of the IGBT switching element.

Abstract: Switching devices of a primary circuit connected in parallel to each other and a method for operating the same are provided. The switching device includes a first module that is connected between a power supply component that applies power of a vehicle and a ground component. A plurality of first modules and a plurality of second modules are provided. Further, a second module is connected in parallel to the first module.

Abstract: A current sensing apparatus includes: a temperature sensor configured to sense a temperature of a power converter; a current sensing unit configured to sense an input current of the power converter; and a central processing unit (CPU) configured to control an operation of the power converter in response to the sensed temperature of the power converter and the sensed input current of the power converter. The CPU includes a compensation unit configured to store, upon receiving an indication of the sensed temperature of the power converter from the temperature sensor, an operation voltage of at least one diode included in the current sensing unit in a map, and to compensate for an error of a sensing current based on the stored operation voltage when the current sensing unit senses the input current.

Abstract: A device and a method for controlling a high side DC/DC converter (HDC) of a hybrid vehicle are provided. The switching frequency of the HDC is variably adjusted based on situations of temperatures of an inductor and an IGBT switching element, which constitute the HDC, to maintain a balance between the temperatures of the inductor and the IGBT switching element. Accordingly, temperatures of the inductor and the IGBT switching element are detected, and the switching frequency of the HDC is variably adjusted based on a situation for each temperature of each element to maintain a balance between the temperatures of the inductor and the IGBT switching element, thereby improving the utilization rate of the IGBT switching element.

Abstract: A current sensing circuit includes: a current sensing transformer including a primary coil connected to an input terminal of a converter and a secondary coil; a first current path connected to the secondary coil, including a first resistor, and configured to allow a forward current induced in the secondary coil to flow therethrough; and a second current path connected to the secondary coil, including a second resistor, and configured to allow a reverse current induced in the secondary coil to flow therethrough, wherein the first current path further includes at least one voltage drop element disposed between the secondary coil and the first resistor.

Abstract: A current sensing apparatus includes: a temperature sensor configured to sense a temperature of a power converter; a current sensing unit configured to sense an input current of the power converter; and a central processing unit (CPU) configured to control an operation of the power converter in response to the sensed temperature of the power converter and the sensed input current of the power converter. The CPU includes a compensation unit configured to store, upon receiving an indication of the sensed temperature of the power converter from the temperature sensor, an operation voltage of at least one diode included in the current sensing unit in a map, and to compensate for an error of a sensing current based on the stored operation voltage when the current sensing unit senses the input current.

Abstract: A search system includes a non-transitory computer-readable storage device, and a computing device. A term extracting unit causes the computing device to extract multiple terms from an input query, a weight computing unit causes the computing device to compute a weight for each of the multiple terms, and a reduction query recommending unit causes the computing device to remove at least one term from the multiple terms, based on the weight, and to provide at least one reduced query using remaining terms. A search method that uses a computing device to provide a reduced query, the method includes extracting multiple terms from an input query; computing, by the computing device, a weight of each of the multiple terms; and removing at least one term from the multiple terms, based on the weight, and providing at least one reduced query generated using remaining terms out of the multiple terms.

Abstract: A method and system for providing keyword ranking using a common affix is provided. The method for providing keyword ranking using the common affix includes: extracting a common affix using a keyword set; and providing keyword ranking which includes the extracted common affix.

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: A method and system for analyzing competition results is disclosed, the method comprising providing a probability model to analyze competition results including both information about options used for a competition process, and rank information of competition participants; and determining a first parameter about a pure ability of each competition participant, and a second parameter about advantages and disadvantages of the option used for the competition process by analyzing the competition results using the probability model, wherein the first and second parameters are determined by calculating a prior distribution of the second random variable, calculating a likelihood function of the second random variable, and estimating the first and second parameter through the use of the prior distribution of the second random variable and the likelihood function.

Abstract: A search system includes a non-transitory computer-readable storage device, and a computing device. A term extracting unit causes the computing device to extract multiple terms from an input query, a weight computing unit causes the computing device to compute a weight for each of the multiple terms, and a reduction query recommending unit causes the computing device to remove at least one term from the multiple terms, based on the weight, and to provide at least one reduced query using remaining terms. A search method that uses a computing device to provide a reduced query, the method includes extracting multiple terms from an input query; computing, by the computing device, a weight of each of the multiple terms; and removing at least one term from the multiple terms, based on the weight, and providing at least one reduced query generated using remaining terms out of the multiple terms.

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: A method and system for analyzing competition results is disclosed, the method comprising providing a probability model to analyze competition results including both information about options used for a competition process, and rank information of competition participants; and determining a first parameter about a pure ability of each competition participant, and a second parameter about advantages and disadvantages of the option used for the competition process by analyzing the competition results using the probability model, wherein the first and second parameters are determined by calculating a prior distribution of the second random variable, calculating a likelihood function of the second random variable, and estimating the first and second parameter through the use of the prior distribution of the second random variable and the likelihood function.

Abstract: A method and system for providing keyword ranking using a common affix is provided. The method for providing keyword ranking using the common affix includes: extracting a common affix using a keyword set; and providing keyword ranking which includes the extracted common affix.