Samsung Electronics Co., Ltd.

Electronics and Telecommunications Research Institute

Sangho Yi

Muwoong Lee

Seokjin Chang

Kyungduk Lee

Boseok Moon

Seokhyun Kim

Hyunjin Choi

Yoonkyong Lee

Jongsung Na

Youngseop Shim

Seungmin Park

Sangbum Suh

Yookun Cho

Jaemyoung Kim

Donghyouk Lim

Jaeheung Lee

Jinha Oh

Sumin Lim

Yungjoon Jung

Youngbin Seo

A storage device and an operating method thereof are provided. The storage device includes a memory configured to store parameter data used as an input in a neural network. The storage device also includes a storage controller configured to receive a request signal from a host. The storage controller is also configured to encode, based on the parameter data, log data in the neural network, the log data indicating contexts of the plurality of components, and transmit the encoded log data to the host.

Storage device and operating method thereof

When a communication occurs in an electronic device, groups are automatically generated according to the user's situation by: storing a communication history in a database; generating a first group from the database on the basis of the time and location information stored in the database at a predetermined time; retrieving a transmission list from the database and generating a second group from the database on the basis of an identifier of an opposing party included in the transmission list; retrieving a reception list from the database and generating a third group from the database on the basis of an identifier of an opposing party included in the reception list and the identifier of the opposing party included in the transmission list; and generating a fourth group on the basis of the information commonly included in at least two groups of the first group, the second group and the third group.

Method and device for forming group using communication history information

A method of determining a second application related to a first application being executed by using a use log of a portable terminal and executing the second application according to a user input and an apparatus for supporting the same are provided. The portable terminal may determine the second application related to the first application being executed, based on a use log collected in a previous context state identical or similar to a current context state of a user. At this time, in order to determine the current context state of the user, the portable terminal may use information related to a location of the portable terminal and information related to a current time.

Method of using use log of portable terminal and apparatus using the same

A user preference analysis method and device are provided for providing a user with customized content through preference analysis based on the user's content consumption activity. The user preference analysis method includes displaying content data on a screen of the device in response to a user input; recording content information about the content data displayed on the screen; analyzing a user preference based on the recorded content information; and storing a user preference analysis result for the content data.

User preference analysis method and device

Disclosed is a flash memory device having a secure flash file deletion function and a method for securely deleting a flash file. Data and object headers as actual contents of the flash file are separately stored in data blocks and header blocks. At this time, the data is encrypted and stored, and a decryption key is included in an object header and stored in a header block. When the flash file is deleted, the object header is deleted by searching the header block where the object header including the decryption key is stored. In order to search the header block, a binary tree structure is used in which a terminal node indicates an LSB of a file ID. Disclosed may be applied to an embedded system where a flash memory is used as a storage medium. In particular, disclosed is suitable for a NAND flash memory device.

Flash memory device having secure file deletion function and method for securely deleting flash file

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Seoul, South Korea

Sangho Yi