A parallel computing approach to creating engineering concept spaces for semantic retrieval: the Illinois Digital Library Initiative project

1996 ◽  
Vol 18 (8) ◽  
pp. 771-782 ◽  
Author(s):  
Hsinchun Chen ◽  
B. Schatz ◽  
T. Ng ◽  
J. Martinez ◽  
A. Kirchhoff ◽  
...  
Keyword(s):  
Parallel Computing ◽  
Digital Library ◽  
Semantic Retrieval ◽  
Engineering Concept ◽  
Computing Approach

A study on next‐generation digital library using context‐awareness technology

2013 ◽  
Vol 31 (2) ◽  
pp. 236-253 ◽  
Author(s):  
Younghee Noh
Keyword(s):  
Digital Library ◽  
Digital Libraries ◽  
Context Awareness ◽  
Theoretical Research ◽  
Context Aware ◽  
Semantic Retrieval ◽  
Next Generation ◽  
Climate Control ◽  
Content Type ◽  
Reference Services

PurposeThis study seeks to examine the concepts of context, context‐awareness, and context‐awareness technology needed for applying context‐awareness technology to the next‐generation of digital libraries, and proposed context‐aware services that can be applied to any situation by illustrating some library contexts.Design/methodology/approachThe paper investigated both theoretical research and case analysis studies before suggesting a service model for context‐awareness‐based libraries by examining the context, context‐awareness, and context‐awareness technology in depth.FindingsThis paper derived possible library services which could be provided if context‐awareness services are implemented by examining and analyzing case studies and systems constructed in other fields. A library‐applied context‐aware system could recognize users entering the library and provide optimal services tailored to each situation for both new and existing users. In addition, the context‐awareness‐based library could provide context‐awareness‐based reference services, context‐awareness‐based loan services, and cater to other user needs in the stacks, research space, and a variety of other information spaces. The context‐awareness‐based library could also recognize users in need of emergency assistance by detecting the user's behavior, movement path, and temperature, etc. Comfort or climate‐control services could provide the user with control of the temperature, humidity, illumination and other environmental elements to fit the circumstances of users, books, and instruments through context‐aware technology.Practical implicationsNext‐generation digital libraries apply new concepts such as semantic retrieval, real‐time web, cloud computing, mobile web, linked data, and context‐awareness. Context‐awareness‐based libraries can provide applied context‐awareness access service, reactive space according to the user's access, applied context‐awareness lobbies, applied context‐awareness reference services, and applied context‐awareness safety services, context‐awareness‐based comfort services and so on.Originality/valueReal instances of libraries applying context‐aware technology are few, according to the investigative results of this study. The study finds that the next‐generation digital library using context‐awareness technology can provide the best possible service for the convenience of its users.

A parallel computing approach to genetic sequence comparison: The master-worker paradigm with interworker communication

1991 ◽  
Vol 24 (2) ◽  
pp. 152-169 ◽  
Author(s):  
Dean F. Sittig ◽  
David Foulser ◽  
Nicholas Carriero ◽  
George McCorkle ◽  
Perry L. Miller
Keyword(s):  
Parallel Computing ◽  
Sequence Comparison ◽  
Genetic Sequence ◽  
Computing Approach

scholarly journals An Ultra-Fast Digitally Reconstructed Radiograph (DRR) Implementation of the Siddon-Jacobs Algorithm using Parallel Computing: Runtime Improvement of an Intensity-Based 2D/3D Registration

2021 ◽  
Vol 7 (2) ◽  
pp. 25-28
Author(s):  
Julio C. Alvarez-Gomez ◽  
Gerardo Jimenez Palavicini ◽  
Hubert Roth ◽  
Jürgen Wahrburg
Keyword(s):  
Parallel Computing ◽  
3D Registration ◽  
3D Data ◽  
Pixel Location ◽  
Mri Scans ◽  
Computing Approach ◽  
Ct And Mri

Abstract A key component of an intensity-based 2D/3D registration is the digitally reconstructed radiograph (DRR) module, which creates 2D projections from pre-operative 3D data, e.g., CT and MRI scans. On average, an intensity-based 2D/3D registration requires ten iterations and the rendering of twelve DRR images per iteration. In a typical DRR implementation, the rendering time is about two seconds, and the registration runtime is four minutes. We present an implementation of the Siddon-Jacobs algorithm that uses a novel pixel-step approach to determine the pixel location of the rendering plane. In addition, we calculate the intensity of each pixel in the rendering plane using a parallel computing approach. The DRR rendering time is reduced to 10ms on average so that the registration runtime can be achieved in an average of 4.8 seconds.

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