نتایج جستجو برای: structural similarity

تعداد نتایج: 492979  

2016
Thanos G. Stavropoulos Stelios Andreadis Marina Riga Efstratios Kontopoulos Panagiotis Mitzias Yiannis Kompatsiaris

Semantic drift is an active field of research, aiming to identify and measure changes in ontologies across time and versions, closely related to ontology evolution. However, practical and widely adopted methods that are directly applicable to Semantic Web constructs have yet to emerge. Building upon and extending existing work, this paper presents a framework for measuring semantic drift in ont...

2012
Jongil Jeong Dongkyoo Shin Dongil Shin

In this paper, we propose an alternative mapping strategy to mine the structural similarity and an advanced mapping rule from the algorithm. Objectrelational mapping technique is used for extracting advanced storage design schema for microarray data and structural similarity of elements is evaluated for efficient storage construction. The mapping strategy reduced the number of relational tables...

2012
Arthur J. White Jeffrey Chan Conor Hayes Thomas Brendan Murphy

Discussion boards are a form of social media which allow users to discuss topics and exchange information in a complex manner, in a number of different settings. As the popularity of such message boards has increased, communities of users have emerged, and several prominent types of social role have been identified, such as Question Answerer, Celebrity, Discussion Person and Topic Initiator. Re...

2017
Ankur Bhardwaj Seema Verma Manoj Kumar Shukla Anand Prakash Shukla

Ultrasound Imaging plays vital role in diagnoses a disease. US image suffers from speckle noise. Despeckling is an important task for accurate diagnosis. In this paper experiment has been performed to measure the effectiveness of various filters available for despeckling. Results are compared qualitatively and quantitatively the Peak Signal to Noise Ratio and SSIM parameters are used to quantif...

1996
Jürgen G. Körner

I present a mini-review on the physics of heavy flavour baryons where I concentrate on the HQET description of their exclusive decay modes. In particular I discuss the structure of current-induced bottom baryon to charm baryon transitions, and the structure of pion and photon transitions between heavy charm or bottom baryons in the Heavy Quark Symmetry limit as mQ → ∞. The emphasis is on the st...

Journal: :Knowledge Eng. Review 2015
Maciej Piernik Dariusz Brzezinski Tadeusz Morzy Anna Lesniewska

With its presence in data integration, chemistry, biological and geographic systems, XML has become an important standard not only in computer science. A common problem among the mentioned applications involves structural clustering of XML documents — an issue that has been thoroughly studied and led to the creation of a myriad of approaches. In this paper, we present a comprehensive review of ...

2008
David M. Rouse Sheila S. Hemami

The natural continuum of visual processing from signal analysis to cognition inspires the search for extensions to current models to include some higher-level structural processing. This paper continues the authors’ study regarding the role of visual structure in cognition, where two representations of a natural image are considered: signal-based and structurally based. Structural representatio...

2017
Thanos G. Stavropoulos Efstratios Kontopoulos Albert Meroño-Peñuela Stavros Tachos Stelios Andreadis Yiannis Kompatsiaris

Detecting and measuring semantic drift in different versions of ontologies across time is a novel area of research that rapidly gains attention. Nevertheless, there exist only a few relevant practical methods and tools and even fewer are flexible enough to be efficiently applied to multiple domains. As the often domain-specific nature of ontologies may render methods and tools for measuring sem...

2013
Jin-Hyo Kim Ricardo Resende Tom Wennekes Hong-Ming Chen Sabrina Buchini Andrew G. Watts Pat Pilling Victor A. Streltsov Martin Petric Richard Liggins Susan Barrett Jennifer L. McKimm-Breschkin Masahiro Niikura Stephen G. Withers

Influenza antiviral agents play important roles in modulating disease severity and in controlling pandemics while vaccines are prepared, but the development of resistance to agents like the commonly used neuraminidase inhibitor Tamiflu may limit their future utility. We report here a completely new class of specific, mechanism-based anti-influenza drugs that function via the formation of a high...

2009
Guangyao Cao Luhong Liang Siwei Ma Debin Zhao

Image quality assessment (IQA) is a crucial technique in perceptual image/video coding, because it is not only a ruler for performance evaluation of coding algorithms but also a metric for ratio-distortion optimization in coding. In this paper, inspired by the fact that distortions of both global and local information influence the perceptual image quality, we propose a novel IQA method that in...

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