We study the new mobile query auto-completion (QAC) problem to exploit mobile devices’ exclusive signals, such as those related to mobile applications (apps). We propose AppAware, a novel QAC model using installed app and recently opened app signals to suggest queries for matching input prefixes on mobile devices. To overcome the challenge of noisy and voluminous signals, AppAware optimizes com...

�ery Autocompletion (QAC) systems are interactive tools that assist a searcher in entering a query, given a partial query pre�x. Existing QAC research – with a number of notable exceptions – relies upon large existing query logs from which to extract historical queries. �ese queries are then ordered by some ranking algorithm as candidate completions, given the query pre�x. Given the numerous se...

In this paper we describe a question answering task, called Question Answering Challenge (QAC), and its first evaluation (QAC1). This was carried out as a task of NTCIR Workshop 3 in October 2002. In QAC, we aimed to encourage the development of practical QA systems in a general domain and focus on research of user interaction and information extraction. Developments of evaluation method of que...

A semi-analytical study of the acoustic radiation losses associated with various transverse vibration modes of a micromechanical (MEMS) annular resonator is presented. The quality factor, Q, of such resonators is of interest in many applications and depends on structural geometry, fluid-structure interaction, and the device encapsulation. Resonators with at least one surface exposed to air can ...

Este trabalho apresenta a elaboração de um questionário para avaliação continuada em curso Farmácia. Foram realizadas revisão da literatura e discussões envolvendo o Apoio Pedagógico Comissão Graduação do curso, dando origem à primeira versão com 20 itens, analisados por especialistas submetidos pré-teste graduandos; após etapa adequação, foi aplicado Questionário Avaliação Continuada (QAC) 21 ...

A simple and sensitive spectrophotometric assay for quaternary ammonium compounds (QACs) based on Dragendorff's reagent is described. Although not specific for a particular QAC, the assay allows for rapid survey of tissue for QAC content. A separation method for QACs in halophyte tissue containing high levels of cations was developed using ion exchange resins and ninhydrin to remove the amino a...

The aim in this study was to assess the effectiveness of a quaternary ammonium chloride (QAC) surfactant in reducing surface staphylococcal contamination in a routinely operating medical ward occupied by patients who had tested positive for methicillin-resistant Staphylococcus aureus (MRSA). The QAC being tested is an antibacterial film that is sprayed onto a surface and can remain active for u...

Query auto completion (QAC) models recommend possible queries to web search users when they start typing a query prefix. Most of today’s QAC models rank candidate queries by popularity (i.e., frequency), and in doing so they tend to follow a strict query matching policy when counting the queries. That is, they ignore the contributions from so-called homologous queries, queries with the same ter...

OBJECTIVES To examine the distribution of all genes known to be responsible for resistance to quaternary ammonium compounds (QACs), and their association with resistance to QACs and other antimicrobials, in Escherichia coli recovered from retail meats. METHODS A total of 570 strains of E. coli isolated from US retail meats in 2006 were screened for the presence of 10 QAC resistance genes [qac...

BACKGROUND Non-tuberculous mycobacteria (NTM) are increasingly important as opportunistic infections after major and minor surgical procedures, likely because they are ubiquitous and not effectively killed by many commonly used disinfectants. Outbreaks of soft tissue infections with NTM appeared related to the use of commercial disinfectants based on quaternary ammonium compounds (QACs). METH...