Force Open: Lightweight black box file repair

Black-Box Problem Diagnosis in Parallel File Systems

We focus on automatically diagnosing different performance problems in parallel file systems by identifying, gathering and analyzing OS-level, black-box performance metrics on every node in the cluster. Our peercomparison diagnosis approach compares the statistical attributes of these metrics across I/O servers, to identify the faulty node. We develop a root-cause analysis procedure that furthe...

New Theory Cracks Open the Black Box of Deep Learning

Structuration theory: open the black box of integrated care

Introduction: The health care system is in transition. Integrated cares solutions are prominent and even forced by health care policy. But how can we understand the needs of different stakeholders in this system? Why do they still not act effectively and efficiently together? A closer look, using the structuration theory of Anthony Giddens, may be helpful. Theory: The theory of structuration en...

E-Voting and Forensics: Prying Open the Black Box

Over the past six years, the nation has moved rapidly from punch cards and levers to electronic voting systems. These new systems have occasionally presented election officials with puzzling technical irregularities. The national experience has included unexpected and unexplained incidents in each phase of the election process: preparations, balloting, tabulation, and reporting results. Quick t...

Black-Box Testing of Grey-Box Behavior

A key aspect of the Object-Oriented (OO) approach is that a designer can enrich an OO system by providing suitable (re-)definitions for some of the methods of the given system. Application frameworks provide good examples of such enrichment. An OO framework typically provides a number of template methods that implement specific patterns of calls to hook methods. An application developer can cus...