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Nowadays is probably every one of us registered at various social networks. These social networks are gathering information about us but only few of them provide a service for checking what data are being held about us. This paper describes creating semantic layer for such a tool; deals with Facebook Graph API, Semantic Web technology, OWL and describes the Facebook Ontology: a formal framework handling...
Examining data for similar items is one of the fundamental data-mining problems. Application of methods for similarity search could be useful for plagiarism or near-duplicate web page detection. The computerized methods developed during last years are mainly focused on English language. However, Slovak language has several specific attributes and using these methods may not be precise enough. Our...
This paper deals with the problem of mobile device time synchronization with millisecond accuracy. We created a solution that will allow synchronizing time on mobile phones depending on accelerometer sensor precision. Our solution is suitable for multiple mobile sensor measurement where the time accuracy of synchronization between mobile phones is needed. We tested the implemented solution on the...
Knowledge can be defined as a fact or state which is based on gathered information, experiences and association. Storing and gathering knowledge is an actual issue in artificial intelligence, health care and manufacturing. Ontologies use mechanism that offers inferring of the new facts out of explicitly given ones. We have used this feature for solving a logic riddle. The speed of inferring facts/knowledge...
It has been planned that the whole region of Slovak Republic's surface would be scanned, and there arose a need for storing the resulting data and making it publicly available. For this purpose, a scalable file-based database system for storing and accessing a large amount of geographic point cloud data was developed. The principle of the system was tested and proved to be sufficient in most situations,...
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