Abstract: In an embodiment, multiple computers cooperate to retrieve content from tables in a relational database. Each table contains respective rows. Each row contains a vertex of a graph. Many high-degree vertices are identified. Each high-degree vertex is connected to respective edges in the graph. A count of the edges of each high-degree vertex exceeds a degree threshold. A central computer detects that all vertices in a high-degree subset of tables are high-degree vertices. Based on detecting the high-degree subset of tables, multiple vertices of the graph that are not in the high-degree subset of tables are replicated. Within local storage capacity limits of the computers, this degree-based replication may be supplemented with other vertex replication strategies that are schema based, content based, or workload based. This intelligent selective replication maximizes system throughput by minimizing graph data access latency based on data locality.

Abstract: A display device includes luminous and non-luminous areas. The display device includes a display element layer, an optical control layer, and a low reflective window, stacked in the order provided. The low reflective window has SCI reflectivity of 4.12% or less. The display element layer includes a pixel definition film where a pixel opening that does not overlap the luminous area is defined. A first electrode is exposed through the pixel opening. An emission layer is disposed on the first electrode. A second electrode is disposed on the emission layer. A low reflective layer is disposed on the second electrode and includes bismuth (Bi) and/or ytterbium (Yb). The optical control layer includes a color pattern part that does not overlap the luminous area, and an overcoat layer disposed on the color pattern part and overlapping the luminous and non-luminous areas.

Abstract: A technique, performed by an electronic device, of managing a security key is provided. The electronic device may receive security information from each of at least one other electronic device, determine a master electronic device based on a security level of the electronic device and a security level of a security level of the at least one other electronic device, the security level of the at least one other electronic device being included in the received security information, generate a security key as the electronic device is determined as the master electronic device, and determine a portion to be removed from the security key for each security level of a plurality of electronic devices including the electronic device and the at least one other electronic device, and provide each partial security key from which the determined portion is omitted, to the at least one other electronic device.

Abstract: A Network-on-Chip (NoC) includes a packet transmission switch, and a corresponding method of operating the NoC includes storing packets received from an input terminal in a buffer, storing buffer locations in which each of the packets is stored in an ordering queue of an output terminal, and sequentially outputting the packets from the output terminal according to the buffer locations.

Abstract: A semiconductor device including a semiconductor chip having a first surface and a second surface opposite to the first surface, a first heat dissipation member on the second surface of the semiconductor chip, the first heat dissipation member having a vertical thermal conductivity in a direction perpendicular to the second surface, and a horizontal thermal conductivity in a direction parallel to the second surface, the first vertical thermal conductivity being smaller than the first horizontal thermal conductivity, and a second heat dissipation member comprising a vertical pattern penetrating the first heat dissipation member, the second heat dissipation member having a vertical thermal conductivity that is greater than the vertical thermal conductivity of the first heat dissipation member may be provided.

Abstract: A wireless power transmission device includes power transmission coils for transmitting power to a wireless power reception device; inverters for applying alternating current power to the coils; a communication module using a frequency different from that of the power transmitted from the coils; and a processor. The processor controls the inverters such that first power is sequentially applied to the coils respectively, receives a communication signal from the reception device through the communication module while the first power is being sequentially applied, identifies a first coil corresponding to a position of the reception device based on of a reception time point of the communication signal and time points at which the first power starts to be applied to the coils, and controls a first inverter corresponding to the first coil such that second power for charging the reception device is applied to the first coil.

Abstract: An electronic device constituting a blockchain node included in a blockchain network is provided.

Abstract: The present invention relates to a polymer having a novel structure used in a process for manufacturing a semiconductor and a display; an underlayer film composition for a process for manufacturing a semiconductor and a display, including the same; and a method for manufacturing a semiconductor element by using the same. The novel polymer of the present invention has both optimized etch selection ratio and planarization properties and excellent heat resistance, and thus the underlayer film composition including the same can be used as a hard mask in a semiconductor multilayer lithography process.

Abstract: An electronic device constituting a block node included in a blockchain network is provided. The method for operating an electronic device includes, in response to a request for recovery of loss of data stored in a memory, requesting user node information relating to a user of the electronic device from an external device through a communication circuit, receiving the user node information acquired based on node identification information stored in the external device, requesting block data associated with the user from the external device, based on the user node information, acquiring at least one block detected based on the node information, among the entire ledger, from the external device through the communication circuit, and storing the at least one acquired block in the memory.

Abstract: A semiconductor device includes: a substrate; a contact plug on the substrate; a lower electrode electrically connected to the contact plug, and including a first electrode layer, a first buffer layer, and a second electrode layer, sequentially stacked; a first support layer in contact with an upper surface of the lower electrode and disposed to overlap at least a portion of the lower electrode, the first support layer extending in a direction parallel to an upper surface of the substrate; a dielectric layer disposed on the lower electrode and the first support layer; and an upper electrode disposed on the dielectric layer. The lower electrode comprises a first region overlapping the first support layer, and having a first height; and a second region not overlapping the first support layer, and having a second height lower than the first height.

Abstract: An electronic device constituting a first block node included in a blockchain network of the disclosure is provided. The electronic device performs, in response to an input of requesting a transaction, obtaining first input data, output data, and a first identification value indicating a unique value capable of identifying a first smart contract, validating a blockchain application, forwarding a public key for a private key and an input data request to the second block node, based on the validation result, receiving, from the second block node, second input data encrypted with the public key and a second identification value indicating a unique value capable of identifying a second smart contract, and transmitting transaction data including the first input data and the output data to the server node, based on the comparison result of the first identification value and the second identification value.

Abstract: According to an embodiment of the disclosure, an electronic device configuring a first block node included in a blockchain network may store a partial ledger including a part of a full ledger regarding the blockchain network, may determine whether data necessary for executing a first smart contract regarding a transaction requested to be performed is stored in a first database, based on a result of the determining, may acquire node information including information regarding at least one block node that stores the data from the third block node through a communication circuit, and may acquire the data from the second block node or the third block node, based on the node information, and may execute the first smart contract.

Abstract: Provided is a robot including a main body having a traveling wheel and a traveling motor for rotating the traveling wheel, a seating body disposed above the main body, a left projector disposed at a left side of the main body to scan a beam toward a left lower direction, a right projector disposed at a right side of the main body to scan a beam toward a right lower direction, and a processor for controlling the traveling motor, the left projector, and the right projector.

Abstract: Techniques are described for establishing a private network path from a first cloud environment to a second cloud environment. A tenancy associated with the first cloud environment is provided in the second cloud environment. The tenancy includes a set of one or more resources that enable communication between the first cloud environment and the second cloud environment. A request originating in the second cloud environment and associated with a service provided by the first cloud environment is caused to be received by a first resource from the set of one or more resources. Using at least one resource from the set of one or more resources, the request is transmitted from the second cloud environment to first cloud environment.

Abstract: Techniques are described for creating a network-link between a first virtual network in a first cloud environment and a second virtual network in a second cloud environment. The first virtual network in the first cloud environment is created to enable a user associated with a customer tenancy in the second cloud environment to access one or more services provided in the first cloud environment. The network-link is created based on one or more link-enabling virtual networks being deployed in the first cloud environment and the second cloud environment.

Abstract: Techniques are described for creating a network-link between a first virtual network in a first cloud environment and a second virtual network in a second cloud environment. The first virtual network in the first cloud environment is created to enable a user associated with a customer tenancy in the second cloud environment to access one or more services provided in the first cloud environment. The network-link is created based on one or more link-enabling virtual networks being deployed in the first cloud environment and the second cloud environment.

Abstract: Techniques are described for creating a network-link between a first virtual network in a first cloud environment and a second virtual network in a second cloud environment. The first virtual network in the first cloud environment is created to enable a user associated with a customer tenancy in the second cloud environment to access one or more services provided in the first cloud environment. The network-link is created based on one or more link-enabling virtual networks being deployed in the first cloud environment and the second cloud environment.

Abstract: Data structures and methods are described for applying mutations on a distributed graph in a fast and memory-efficient manner. Nodes in a distributed graph processing system may store graph information such as vertices, edges, properties, vertex keys, vertex degree counts, and other information in graph arrays, which are divided into shared arrays and delta logs. The shared arrays on a local node remain immutable and are the starting point of a graph, on top of which mutations build new snapshots. Mutations may be supported at both the entity and table levels. Periodic delta log consolidation may occur at multiple levels to prevent excessive delta log buildup. Consolidation at the table level may also trigger rebalancing of vertices across the nodes.

Abstract: Disclosed is an electronic device including a plurality of sensing coils for sensing an external device; a power transmitting coil for transmitting power to the external device; and a processor configured to: sequentially apply, to the power transmitting coil, powers having magnitudes respectively set to correspond to the plurality of sensing coils, and during a period in which power corresponding to each sensing coil of the plurality of sensing coils among the powers is applied, identify induction voltages respectively induced in the plurality of sensing coils, and sense the external device located on a wireless power transmitting device, on the basis of the identified induction voltages.