Violations of functional dependencies (FDs) are common in practice, often arising in the context of data integration or Web data extraction. Resolving these violations is known to be challenging for a variety of reasons, one of them being the exponential number of possible “repairs”. Previous work has tackled this problem either by producing a single repair that is (nearly) optimal with respect...

This paper deals with maintenance strategies with minimal repairs for single-unit repairable systems which are subject to competing and dependent failures due to degradation and traumatic shocks. The main aims are to study different approaches for making a minimal repair decision (i.e. time-based or condition-based) which is a possible corrective maintenance action under the occurrence of shock...

Data is inherently dirty and there has been a sustained effort to come up with different approaches to clean it. A large class of data repair algorithms rely on data-quality rules and integrity constraints to detect and repair the data. A well-studied class of integrity constraints is Functional Dependencies (FDs, for short) that specify dependencies among attributes in a relation. In this pape...

OBJECTIVE To compare the Lichtenstein, tension-free mesh, and the Shouldice, 4-layer Bassini repair of the inguinal hernia. DESIGN Prospective randomized clinical trial. SETTING A private suburban hernia center. PATIENTS Six hundred seventy-two men with inguinal hernias, aged 20 to 90 years, seen at the hernia center between January 1, 1990, and December 31, 1995. INTERVENTIONS Slightly...

OBJECTIVES To assess the results of inferior capsular shift for multidirectional instability of the shoulder in athletes. METHODS Multidirectional instability was surgically corrected in 53 shoulders in 47 athletes who engaged in contact sports. A history of major trauma was found in eight patients, the others having had minor episodes. Before surgery, all patients had complex combinations of...

In today’s marketplace the repairs of various components especially long lead items for turbomachinery equipment are an important factor for the maintaining reliability and performance of the equipment. This paper will describe repairs applied to compressors