ScudFile: Context File System Based On Context Stream

Files are fundamental for information storage in computer operating systems. However, the increasing number of personal files makes users difficult to manage and access. Nowadays, the mainstream operation systems use the directory, a tree structure, to organize and manage files. But with the growing number of files, tree directory exposed many shortcomings, such as file classification and file access depth.The main solution is use the extra information describes files, and use description information to help locate file. But the system either need user to describe manually or can't change the file services based on user situation.In this paper, we propose a context organization model-context stream to organize context information for files. Each context stream is a one-dimensional function of time. With the model of context stream, files can be reorganized using a set of discretely sampled streams based on file operation such as file creating, editing, and deleting. We proposed and implemented a file system with context streams, named ScudFile. ScudFile achieves to associate context streams with files automatically by tracing system calls when users operate on the files, based on context stream, get the user's file operating practices and support file services based on context, such as file search use context information, file recommendation.