Abstract: Provided is a compound of Chemical Formula 1: wherein: Y1 to Y9 are each independently N, C—H, C-D, or C-L?-R, provided that at least one of Y1 to Y9 is N; L? is a single bond or a substituted or unsubstituted C6-60 arylene; R is a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; L is a single bond, a substituted or unsubstituted C6-60 arylene, or a substituted or unsubstituted C2-60 heteroarylene containing any one or more of N, O and S; L1 and L2 are each independently a single bond or a substituted or unsubstituted C6-60 arylene; and Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; and an organic light emitting device including the same.

Abstract: Provided is an organic light emitting device that includes an anode, a cathode, a light emitting layer containing a compound of Chemical Formula 1: and a hole transport region that includes a compound of Chemical Formula 2: the organic light emitting device having improved driving voltage, efficiency and lifetime.

Abstract: The present disclosure relates to a compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Abstract: The present disclosure relates to a method and apparatus for acquiring learning data to generate a machine learning model for detecting a scam account of cryptocurrency. The method comprises receiving a report related to a scam address from a first database having information about a reported scam address stored therein, acquiring a first scam address and a first description related to the first scam address from the report, extracting a plurality of first keywords related to the first scam address from the first description using natural language processing, and storing the first scam address in a second database.

Abstract: The present disclosure relates to a method for detecting a scam address of cryptocurrency using a machine learning model, and the method comprises: acquiring information about scam addresses labeled as being used for a scam transaction and information about benign addresses labeled as being used for a normal transaction from a database; acquiring information about a mule address group used for money laundering on the basis of the scam address group; acquiring feature information corresponding to each of the benign addresses and the addresses included in the scam address group or the mule address group on the basis of at least one of the information about the benign addresses, the information about the scam address group, and the information about the mule address group; and generating a machine learning model by machine learning of the feature information corresponding to each of the addresses and label information corresponding to each of the addresses.

Abstract: Provided is an organic light-emitting device comprising an anode, a cathode, and a light-emitting layer provided between the anode and the cathode, wherein the light-emitting layer comprises a first compound of Chemical Formula 1 and a second compound of Chemical Formula 2: wherein: A is Chemical Formula 1a or 1b: Ar1 and Ar2 are each independently a C6-60 aromatic ring or a C2-60 heteroaromatic ring, and Ar1 and Ar2 are unsubstituted, or substituted with C1-60 alkyl, C6-60 aryl, or C2-60 heteroaryl; Ar?1 and Ar?2 are each independently substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl; provided that a1+b1+c1+d+e+f is 1 or more; or a2+b2+c2+d+e+f is 1 or more; R?1 and R?2 are each independently hydrogen, deuterium, C1-60 alkyl, C6-60 aryl, or C2-60 heteroaryl; and r and s are each independently 0 to 7.

Abstract: Provided is a compound of Chemical Formula 1: wherein: each X is independently N or CH, provided that at least one X is N; Y is O or S; each Ar is independently substituted or unsubstituted: C6-60 aryl or C5-60 heteroaryl containing N, O or S; each R1, R2, R3, and R4 independently is hydrogen, deuterium, halogen, cyano, or substituted or unsubstituted: C1-60 alkyl, C1-60 alkoxy, C2-60 alkenyl, C2-60 alkynyl, C3-60 cycloalkyl, C6-60 aryl, or C2-60 heteroaryl containing N, O or S, or two adjacent R4S combine to form a C4-60 aliphatic or aromatic ring; n1, n2, and n3 are each independently 0 or 1, and n4 is 1 to 4, provided that at least one of Ar is substituted with deuterium, or at least one of R1, R2, R3, or R4 is, or is substituted with, one or more deuterium, and an organic light-emitting diode comprising same.

Abstract: The present invention relates to a method for processing a knowledge graph in a data processing apparatus, comprising the steps of: (a) creating a knowledge graph including a taxonomy graph for a classification system of information objects and an entity graph for a relationship between specific information object instances; (b) updating the knowledge graph by reflecting the information objects extracted from a database in the knowledge graph; and (c) inferring the relevance of a random information object by using the updated knowledge graph.

Abstract: Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device including a light emitting layer comprising a first compound of Chemical Formula 1 and a second compound of Chemical Formula 2: A is a benzene ring fused with the two pentagonal rings; Ar1 to Ar3 are each independently a substituted or unsubstituted C6-20 aryl or C5-60 heteroaryl containing one or more of N, O and S; provided that at least one of Ar1-Ar3, and R1 is substituted with at least one deuterium, or at least one of R1 is deuterium, and the first compound comprises at least 5 deuteriums; B is a benzene ring fused with the two pentagonal rings; Ar4 is a substituted or unsubstituted C6-60 aryl; and Ar5 is a substituted or unsubstituted C6-60 aryl or C5-50 heteroaryl containing one of N, O and S.

Abstract: Provided is a compound of Chemical Formula 1: and an organic light emitting device including the same.

Abstract: A compound represented by Chemical Formula 1 and an organic light emitting device comprising the same, the compound used as a material of an organic material layer of the organic light emitting device and providing improved efficiency, low driving voltage, and improved lifetime characteristics.

Abstract: The present specification provides an organoluminescent device including a capping layer on one surface of an electrode, wherein the capping layer includes a compound represented by Chemical Formula 1: X, and R1 to R5 are defined therein.

Abstract: The present invention relates to a method for collecting data from a multi-domain in a data collection device. The method includes a step A of collecting data from a general web that is accessible through a search engine; a step B of collecting data from a dark web site that is not accessible with a general web browser and is accessible with preset specific software; and a step C of standardizing the collected data in a preset format and generating metadata for the collected data.

Abstract: Provided is an organic electroluminescent device, the organic electroluminescent device comprising a cathode, an anode, and one or more organic material layers provided between the cathode and the anode, the one or more organic material layers comprising a light emitting layer, an electron transport region and a hole transport region, wherein all of the organic materials, other than a dopant, contained in the one or more organic material layers have a triplet state energy of 2.5 eV or higher, at least three types of the organic materials having a triplet state energy of 2.5 eV or higher have a triplet state energy of 2.7 eV or higher, and at least two types of the organic materials having a triplet state energy of 2.5 eV or higher include a spiro compound.

Abstract: The present specification relates to a compound and an organic electronic device comprising the same.

Abstract: An organic light emitting device comprising an anode, a cathode, and one or more organic material layers that are provided between the anode and the cathode and include a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2.

Abstract: A compound of Formula 1 and an organic light emitting device including the same, and the compound providing low driving voltage, high light emitting efficiency, and a long service life of the organic light emitting device.

Abstract: Provided is an organic light emitting device having an excellent balance between luminous efficiency and lifespan, the organic light emitting device including: an anode; a cathode positioned opposite to the anode; a light emitting layer positioned between the anode and the cathode; a hole transport layer positioned between the anode and the light emitting layer; and an electron transport layer positioned between the light emitting layer and the cathode, wherein the electron transport layer includes a metal complex compound and an electron transport material having a heterogeneous electron transfer rate constant (K) of 1.2 to 1.65, and the heterogeneous electron transfer rate constant (K) is calculated by the following Mathematical Equation 1: K = k d + k a 2 ? Mathematical ? ? Equation ? ? 1 ? wherein in Mathematical Equation 1: kd (donating k) is an electron donating rate constant and ka (accepting k) is an electron accepting rate constant.

Abstract: Provided is an organic light emitting device comprising a first electrode; a second electrode provided to face the first electrode; and an organic material layer having one or more layers provided between the first electrode and the second electrode, wherein a compound of the following Formula 1 is included as a host in the organic material layer having one or more layers, and a compound of the following Formula 2 is included as a dopant in the organic material layer having one or more layers:

Abstract: An organic light emitting device including a light emitting layer which comprises a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, and the organic light emitting device having improved driving voltage, efficiency and lifetime.