Abstract: Provided is an anomaly pattern detection system including an anomaly detection device connected to one or more servers. The anomaly detection device may include an anomaly detector configured to model input data by considering all of the input data as normal patterns, and detect an anomaly pattern from the input data based on the modeling result.

Abstract: Provided is a learning-based data processing system which generates a learning model by learning a learning data set, recognizes observational data according to the learning model, and provides a recognition result. The learning-based data processing system may include a data recognition device configured to generate a cascaded learning model by cascading a first learning model generated based on a first learning data set and a second learning model generated based on a second learning data set.

Abstract: Disclosed are a refractive optical screen and a floating hologram system using the same. The refractive optical screen is a refractive optical screen which refracts incident light beams and adjusts a travelling direction of the light beams, and includes a prism array in which a plurality of prisms refracting one or more light beams toward a viewing direction of a viewer located at the front side of the refractive optical screen is arranged in a line, and one or more virtual images generated by the one or more refracted light beams simultaneously form a floating hologram arranged in the viewing direction.

Abstract: Provided is a learning-based data processing system which generates a learning model by learning a learning data set, recognizes observational data according to the learning model, and provides a recognition result. The learning-based data processing system may include a data recognition device configured to generate a cascaded learning model by cascading a first learning model generated based on a first learning data set and a second learning model generated based on a second learning data set.

Abstract: Provided is an anomaly pattern detection system including an anomaly detection device connected to one or more servers. The anomaly detection device may include an anomaly detector configured to model input data by considering all of the input data as normal patterns, and detect an anomaly pattern from the input data based on the modeling result.

Abstract: Disclosed are a refractive optical screen and a floating hologram system using the same. The refractive optical screen is a refractive optical screen which refracts incident light beams and adjusts a travelling direction of the light beams, and includes a prism array in which a plurality of prisms refracting one or more light beams toward a viewing direction of a viewer located at the front side of the refractive optical screen is arranged in a line, and one or more virtual images generated by the one or more refracted light beams simultaneously form a floating hologram arranged in the viewing direction.