While data on file systems and data on the Web have traditionally been organized in a hierarchical structure, tagging has emerged as a viable technology for dealing with large collections of data. Tagging involves attaching descriptive keywords to data objects such as files and URLs. Most current implementations of tagging restrict the scope of tags to the website or application in which they w...

Abstract This paper presents an ethnographic study on the Pamplona graffiti community and analyzes emotions motivation necessary for successful learning. The research methods are interviews observations of graffiti-writing practice in community. According to writers, although technical elements can be learned, there is also innate element that makes a person become writer. belief generates seri...

Graffiti is common in many communities and even affects our historical heritage structures. This leads to a decrease the revenue associated with commercial activities or services (e.g., shops, restaurants, residences), potentially reduces tourism region. Visual data, form of photographs, becoming an efficient mechanism record information. Photographs can be quickly captured, are already frequen...

In this paper, we present a series of experiments in which we analyze the usage of graffiti style features for signaling personal gang identification in a large, online street gangs forum, with an accuracy as high as 83% at the gang alliance level and 72% for the specific gang. We then build on that result in predicting how members of different gangs signal the relationship between their gangs ...