Abstract:
A search apparatus for the efficient ontology reasoning and a method therefor are provided to minimize the inclusion relation verification in the inclusion relation interference of all concepts existing within specific area in the real world. A search device(300) for the efficient ontology reasoning comprises a storage unit(310), a top-down search unit(320) and a bottom-up search unit(330). The top-down and bottom-up search units generate a negative information list according to the inclusion relation between a specific concept and the concept of a concept layer. The inclusion relation verification with the specific concept is not performed for a concept recorded in the negative information list.
Abstract:
The present invention relates to a mobile device and a method for classifying moving actions of a user and a method for creating a hierarchical tree model for the same. The mobile device comprises: an acceleration sensor; a buffer for collecting acceleration data outputted from the acceleration sensor according to a specific action of a user; an extraction unit for extracting a characteristic element about the specific action of the user based on the acceleration data collected in the buffer; and an action determination unit for classifying the specific action of the user into a certain action by inputting the characteristic element extracted by the extraction unit to a previously configured hierarchical tree model. The hierarchical tree model was constructed in advance based on an extracted characteristic element from each action. The characteristic element of each action is extracted based on a first frame group which is configured by dividing the selected acceleration data for each action by a predetermined time unit and a second frame group in which part of the acceleration data is constructed to overlap with the first frame group by separating the collected acceleration data for each action by a different time unit from the predetermined time unit.
Abstract:
PURPOSE: A system and a method for inferring ontology based on mobile are provided to be applied to various ubiquitous computing fields by processing context which is generated from a mobile terminal in real time. CONSTITUTION: An ontology input unit(110) changes context into ontology type context. A fact conversion unit(120) stores a knowledge base(150) by converting a subject, a predicate, and object which is extracted from ontology context into a inferable fact based on a fact template which is defied by corresponding to a triple syntax. An ontology extractor(130) infers the face which is stored in a knowledge base by matching with an inference rule.
Abstract:
PURPOSE: An ontology schema reasoning method is provided to reduce the time and cost for complete graph creation by judging a logical error and comprehension relation in an arrange order based on the arrangement in the order from a higher concept to a lower concept. CONSTITUTION: Plural concepts in ontology are arranged in the order from a higher concept to a lower concept(S201). According to the order of the arrange concept, the logical error for the each concept within the ontology is verified(S203). Based on the order of the arranged concepts, it is judged whether or not predetermined concept among the plural concepts is included in the higher or lower concepts(S205). On the basis of the judgment results, the inter-concept class structure among the ontology concept is estimated(S207).
Abstract:
태블로 알고리즘을 이용한 온톨로지 추론 시스템 및 방법이 개시된다. 구조모델 생성부는 수학적으로 결정가능한 추론을 위해 적재된 온톨로지의 서술 논리를 태블로 알고리즘의 사용에 적합한 추론 구조의 데이터 모델로 변경한다. 데이터모델 처리부는 온톨로지 추론에 적합한 기반 구조로 형성된 데이터 모델과 관계 모델이 포함하는 문장들의 구문에 따라 데이터 모델을 간편화 및 최적화하여 개념명세 데이터 모델과 개념들의 집합명세 데이터 모델을 생성한다. 지식베이스에는 데이터 모델, 관계 모델, 개념명세 데이터 모델 및 개념들의 집합명세 데이터 모델이 저장된다. 데이터모델 추론부는 개념명세 데이터 모델을 입력받아 개념들간의 포함관계를 추론한다. 본 발명에 따르면, 실세계 특정 영역에 존재하는 모든 개념들의 정의와 관계를 특정 영역뿐만 아니라 보편 영역의 기본 개념에 대한 정의와 그들의 관계에 대한 명세를 기반으로 사람이 생각하는 수준에서의 새로운 개념과 관계 추론을 사용자 요구에 적합한 합리적인 시간 내에 쉽고 일관되게 할 수 있다. 온톨로지, 추론, 태블로 알고리즘, 데이터 모델, 개념명세