منابع مشابه
When Graffiti Brings Order
Most researchers use Petri nets as a formal notation with mathematically defined semantics. Their graphical part is usually only seen as a notation, that does not carry semantics. Contrary to this tradition, we show in this article that, when created by a human, there is inherent semantics in the positions of places, transitions and arcs. We propose to use the full definition of Petri nets: whe...
متن کاملRecognition of Graffiti Tags
Graffiti tagging, the inscription of an individual graffiti writer’s unique mark in public space, is considered to be an antisocial behaviour and is a criminal offense. Due to the costs involved in the removal of graffiti tags it would be desirable to deter tagging. A searchable database of graffiti images could be an integral part of the policing system aimed at deterring graffiti vandalism. I...
متن کاملThe Immediate Usability of Graffiti
We present four empirical measures of the immediate usability of Graffiti, a character recognizer for pen-based computers. Since speed is fully controlled by the user, we measured the accuracy attainable after minimal exposure. The first measure, 79%, is the inherent accuracy, or the extent to which Graffiti strokes match letters in the Roman alphabet. The other three measures were obtained in ...
متن کاملGraffiti Server — Design and Implementation
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...
متن کاملSpatial analysis of graffiti in San Francisco
Graffiti, as a social phenomenon, has been with us since people first began painting on cave walls. Our responses to graffiti range from recognition of artistry, to interpreting it as a sign of urban decay and disorder. Major cities respond to tax-payers with this latter response by providing graffiti abatement programs, often at substantial cost; thus, understanding and mitigating the causes o...
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ژورنال
عنوان ژورنال: The monitoring of public opinion economic&social changes
سال: 2019
ISSN: 2219-5467
DOI: 10.14515/monitoring.2019.1.15