نتایج جستجو برای: retrieval time

تعداد نتایج: 1959901  

2002
Horst M. Eidenberger Christian Breiteneder

This paper is an experimental study on the performance of the two major methods for macro-level similarity measurement: linear weighted merging and logical retrieval. Performance is measured as the average query execution time for a significant number of tests. The two models were implemented in the standard version (as they are applied in a number of prototypes) and in an optimized version. Th...

Journal: :Journal of Sensors 2021

As one of the essential pieces evidence crime scenes, footprint images cannot be ignored in cracking serial cases. Traditional comparison and retrieval require much time human resources, significantly affecting progress case. With rapid development deep learning, convolutional neural network has shown excellent performance image recognition retrieval. To meet actual needs public security retrie...

Asgharnia M Bahadori MH Faraji R Ghasemian F, Zahiri Z

Background: Abnormal oocyte morphology has been associated with the hormonal environment to which the gametes are exposed. In this study, we evaluated the oocytes morphology, fertilization rate, embryos quality, and implantation rate resulted of retrieved oocytes in different times after human chorionic gonadotrophin (hCG) administration. Materials and Methods: A total of 985 metaphase II were ...

2013
Cunhui Shi Bo Xu Hongfei Lin Qing Guo

Microblog, as a way of online communication, can generate large amounts of information in a very short period. Therefore, how to retrieve the latest relevant information becomes a hot research area. Different from traditional information retrieval (IR), the microblog retrieval emphasizes fresh contents of the information. In order to solve this problem, we extend the traditional IR methods by t...

Journal: :Circulation. Cardiovascular interventions 2017
Kush R Desai James L Laws Riad Salem Samdeep K Mouli Martin F Errea Jennifer K Karp Yihe Yang Robert K Ryu Robert J Lewandowski

BACKGROUND Despite growth in placement of retrievable inferior vena cava filters, retrieval rates remain low. Filters with extended implantation times present a challenge to retrieval, where standard techniques often fail. The development of advanced retrieval techniques has positively impacted retrieval of retrievable inferior vena cava filters with prolonged dwell times; however, there is no ...

Purpose: This study was carried out to determine the level of precision, recall, and searching time for “Nama” and “Namayeh” databases, as well as to find out which of the indexing tools (thesaurus and Dewey decimal classification) helps us more in improvement of information retrieval. Methodology: This study is an analytical survey in which the necessary data was collected by direct observati...

Journal: :IJEGR 2008
Eugene Santos Eunice E. Santos Hien Nguyen Long Pan John Korah Huadong Xia

Homeland security and disaster relief are some of the critical areas of E-governance that have to deal with vast amounts of dynamic heterogeneous data. Providing rapid real-time search capabilities for such applications is a challenge. Intelligent Foraging, Gathering, and Matching (I-FGM) is an established framework developed to assist users to find information quickly and effectively by increm...

1998
Byoung-Kee Yi Christos Faloutsos

Fast similarity searching in large time-sequence databases has attracted a lot of research interest [1, 5, 2, 6, 3, 10]. All of them use the Euclidean distance (L2), or some variation of Lp metrics. Lp metrics lead to e cient indexing, thanks to feature extraction (e.g., by keeping the rst few DFT coe cients) and subsequent use of fast spatial access methods for the points in feature space. In ...

1998
Byoung-Kee Yi H. V. Jagadish Christos Faloutsos

2017
Joshua D. Brown Driss Raissi Qiong Han Val R. Adams Jeffery C. Talbert

BACKGROUND Retrieval of vena cava filters (VCFs) is important for safety as complications increase with longer dwell times. This study assessed VCF retrieval rates and factors associated with retrieval in a national cohort. METHODS AND RESULTS VCFs were identified by procedural codes from an administrative claims database. Patients were identified who had a VCF placement during a hospitalizat...

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