Problem determination is one of the most important tasks in managing distributed systems. Probing (both at the transaction and network levels) has been widely used for assessing compliance with Service Level Agreements and locating problems in distributed systems. However a probing scheme which uses a fixed set of regularly scheduled probes can be expensive in terms of the number of synthetic t...

This paper uniquely leverages unsolicited real darknet data to propose a novel system, CSC-Detector, that aims at identifying Cyber Scanning Campaigns. The latter define a new phenomenon of probing events that are distinguished by their orchestration (i.e., coordination) patterns. To achieve its aim, CSC-Detector adopts three engines. Its fingerprinting engine exploits a unique observation to e...

Quality of Service (QoS) routing in computer networks is an important component in QoS architectures in order to provide end-to-end QoS support. Two major issues make QoS routing difficult: (1) Most of the QoS routing problems are NP-hard, such as the Delay Constraint Least Cost Routing (DCLCR) problem; (2) Imprecise network information degrades the routing performance. Using DCLCR problem as a...

Manual pocket depth probing has been widely used as a retrospective diagnosis method in periodontics. However, numerous studies have questioned its ability to accurately measure the anatomic pocket depth. In this paper, an ultrasonic periodontal probing method is described, which involves using a hollow water-filled probe to focus a narrow beam of ultrasound energy into and out of the periodont...

Purpose: To investigate whether neonatal dacryocystoceles and dacryocystitis are associated with nasolacrimal duct cysts, and to report the outcomes of treatment of these disorders. Methods: This was a retrospective medical record review of two groups of infants with nasolacrimal duct (NLD) obstruction. The first group had dacryocystoceles with or without dacryocystitis. The second group had NL...

AIM To compare the outcomes of surgical periodontal therapy with and without initial scaling and root planing. METHODS Twenty-four patients with severe chronic periodontitis were enrolled in this pilot, randomized controlled clinical trial. Patients were equally allocated into two treatment groups: Control group was treated with scaling and root planing, re-evaluation, followed by Modified Wi...

We investigate a graph probing problem in which an agent has only an incomplete view G′ ( G of the network and wishes to explore the network with least effort. In each step, the agent selects a node u in G′ to probe. After probing u, the agent gains the information about u and its neighbors. All the neighbors of u become observed and are probable in the subsequent steps (if they have not been p...

BACKGROUND Congenital nasolacrimal obstruction is usually the result of failure of canalisation of the distal end of the nasolacrimal duct. The most common outcome is spontaneous resolution, but some children do require surgical treatment by probing. Probing is a blind procedure with a recognised failure rate. METHODS In 52 lacrimal systems of 40 children nasal endoscopy was combined with a "...

This paper presents a novel source-biased approach to automatically discover and rank relevant data intensive web services. It supports a service-centric view of the Web through source-biased probing and source-biased relevance detection and ranking metrics. Concretely, our approach is capable of answering source-centric queries by focusing on the nature and degree of the topical relevance of o...

This paper describes the design, development and evaluation tests of an integrated force sensor prototype for portable Coordinate Measuring Arms (CMAs or AACMMs). The development is based on the use of strain gauges located on the surface of the CMAs' hard probe. The strain gauges as well as their cables and connectors have been protected with a custom case, made by Additive Manufacturing techn...