Abstract: Systems and methods for low latency materialized information provision are disclosed. For example, a system may include at least one memory storing instructions and one or more processors configured to execute the instructions to perform operations. The operations may include receiving, via a materialization service, data from multiple sources related to an item associated with a webpage hosted by a server. The data may include first event data sourced from a real-time feed and second event data sourced from stored data. Operations may include generating synchronized data based on the first and second event data. Operations may include receiving a request from the web server for information related to the item, the request being associated with a user segment. Operations may include identifying data to aggregate to fulfill the request, generating a data structure gathering synchronized data using the data structure, and forwarding the gathered synchronized data to the server.

Abstract: Disclosed is a ciphertext calculation method. The ciphertext calculation method comprises the steps of: receiving a comparative calculation command for a plurality of ciphertexts of the same type; performing a calculation by reflecting the plurality of ciphertexts of the same type on a synthesis function corresponding to the comparative calculation command; and outputting the calculated ciphertexts of the same type.

Abstract: Disclosed is a method in which an application server of a distributed system provides data, the method including performing event watching on a ZooKeeper server, receiving information related to a change of a first field included in first data from the ZooKeeper server according to a result of the event watching, reading the first data from a first storage when a request signal for the first data is input from a client, and changing a value of the first field included in the read first data on the basis of the information received from the ZooKeeper server and providing the first data with the changed value of the first field to the client.

Abstract: Disclosed is a method in which an application server of a distributed system provides data, the method including performing event watching on a ZooKeeper server, receiving information related to a change of a first field included in first data from the ZooKeeper server according to a result of the event watching, reading the first data from a first storage when a request signal for the first data is input from a client, and changing a value of the first field included in the read first data on the basis of the information received from the ZooKeeper server and providing the first data with the changed value of the first field to the client.

Abstract: Disclosed is a method in which an application server of a distributed system provides data, the method including performing event watching on a ZooKeeper server, receiving information related to a change of a first field included in first data from the ZooKeeper server according to a result of the event watching, reading the first data from a first storage when a request signal for the first data is input from a client, and changing a value of the first field included in the read first data on the basis of the information received from the ZooKeeper server and providing the first data with the changed value of the first field to the client.

Abstract: Systems and methods for low latency materialized information provision are disclosed. For example, a system may include at least one memory storing instructions and one or more processors configured to execute the instructions to perform operations. The operations may include receiving, via a materialization service, data from multiple sources related to an item associated with a webpage hosted by a server. The data may include first event data sourced from a real-time feed and second event data sourced from stored data. Operations may include generating synchronized data based on the first and second event data. Operations may include receiving a request from the web server for information related to the item, the request being associated with a user segment. Operations may include identifying data to aggregate to fulfill the request, generating a data structure gathering synchronized data using the data structure, and forwarding the gathered synchronized data to the server.

Abstract: Systems and methods for low latency materialized information provision are disclosed. For example, a system may include at least one memory storing instructions and one or more processors configured to execute the instructions to perform operations. The operations may include receiving, via a materialization service, data from multiple sources related to an item associated with a webpage hosted by a server. The data may include first event data sourced from a real-time feed and second event data sourced from stored data. Operations may include generating synchronized data based on the first and second event data. Operations may include receiving a request from the web server for information related to the item, the request being associated with a user segment. Operations may include identifying data to aggregate to fulfill the request, generating a data structure gathering synchronized data using the data structure, and forwarding the gathered synchronized data to the server.

Abstract: Disclosed is a ciphertext calculation method. The ciphertext calculation method comprises the steps of: receiving a comparative calculation command for a plurality of ciphertexts of the same type; performing a calculation by reflecting the plurality of ciphertexts of the same type on a synthesis function corresponding to the comparative calculation command; and outputting the calculated ciphertexts of the same type.

Abstract: An apparatus that provides a cooperative shopping service in association with a chat application includes a friend information receiving unit configured to receive, from a host device, information about at least one friend or chat room selected from a list of multiple friends or multiple chat rooms managed by the chat application; an invitation unit configured to transmit an invitation message to a guest device corresponding to the friend or a member of the chat room through the chat application; and a cooperative shopping service providing unit configured to provide, both to the host device and the guest device, a list of products that are capable of being put into a shopping cart of the host device and receive order information about product selected from the list of products by at least one of the host device and the guest device, wherein the list of products provided to the host device and the guest device is generated based on a location of a delivery destination determined by the host device.

Abstract: Systems and methods for low latency materialized information provision are disclosed. For example, a system may include at least one memory storing instructions and one or more processors configured to execute the instructions to perform operations. The operations may include receiving, via a materialization service, data from multiple sources related to an item associated with a webpage hosted by a server. The data may include first event data sourced from a real-time feed and second event data sourced from stored data. Operations may include generating synchronized data based on the first and second event data. Operations may include receiving a request from the web server for information related to the item, the request being associated with a user segment. Operations may include identifying data to aggregate to fulfill the request, generating a data structure gathering synchronized data using the data structure, and forwarding the gathered synchronized data to the server.

Abstract: An apparatus that provides a cooperative shopping service in association with a chat application includes a friend information receiving unit configured to receive, from a host device, information about at least one friend or chat room selected from a list of multiple friends or multiple chat rooms managed by the chat application; an invitation unit configured to transmit an invitation message to a guest device corresponding to the friend or a member of the chat room through the chat application; and a cooperative shopping service providing unit configured to provide, both to the host device and the guest device, a list of products that are capable of being put into a shopping cart of the host device and receive order information about product selected from the list of products by at least one of the host device and the guest device, wherein the list of products provided to the host device and the guest device is generated based on a location of a delivery destination determined by the host device.