Experimental Evaluation of Dynamic Typing Mechanism: A Case Study

2019 ◽  
pp. 179-185
Author(s):  
K. Indra Gandhi ◽  
K. Induja
Keyword(s):  
Experimental Evaluation ◽  
Dynamic Typing

scholarly journals Simplification and Detection of Outlying Trajectories from Batch and Streaming Data Recorded in Harsh Environments

2019 ◽  
Vol 8 (6) ◽  
pp. 272 ◽  
Author(s):  
Iq Reviessay Pulshashi ◽  
Hyerim Bae ◽  
Hyunsuk Choi ◽  
Seunghwan Mun ◽  
Riska Asriana Sutrisnowati
Keyword(s):  
South Korea ◽  
Real World ◽  
Experimental Evaluation ◽  
Streaming Data ◽  
Harsh Environments ◽  
Noise Filtering ◽  
New Approach ◽  
Detection Algorithms ◽  
Outlying Point

Analysis of trajectory such as detection of an outlying trajectory can produce inaccurate results due to the existence of noise, an outlying point-locations that can change statistical properties of the trajectory. Some trajectories with noise are repairable by noise filtering or by trajectory-simplification. We herein propose the application of a trajectory-simplification approach in both batch and streaming environments, followed by benchmarking of various outlier-detection algorithms for detection of outlying trajectories from among simplified trajectories. Experimental evaluation in a case study using real-world trajectories from a shipyard in South Korea shows the benefit of the new approach.

The Effects of Bytecode Generation in XSLT and XQuery

2011 ◽  
Author(s):  
O'Neil Davion Delpratt ◽  
Michael Kay
Keyword(s):  
Open Source ◽  
Code Generation ◽  
Experimental Evaluation ◽  
Query Rewriting ◽  
Relative Importance ◽  
Development Team ◽  
Java Bytecode ◽  
High Level ◽  
Performance Gains

This paper attempts to analyze the performance benefits that are achievable by adding a code generation phase to an XSLT or XQuery engine. This is not done in isolation, but in comparison with the benefits delivered by high-level query rewriting. The two techniques are complementary and independent, but can compete for resources in the development team, so it is useful to understand their relative importance. We use the Saxon XSLT/XQuery processor as a case study, where we can now translate the logic of queries into Java bytecode. We provide an experimental evaluation of the performance of Saxon with the addition of this feature compared to the existing Saxon product. Saxon's Enterprise Edition already delivers a performance benefit over the open source product using the join optimizer and other features. What can we learn from these to achieve further performance gains through direct byte code generation?

Experimental Evaluation of Wind Noise Sources: A Case Study

1999 ◽  
Author(s):  
William B. Coney ◽  
Jen Y. Her ◽  
Keith Tomaszewicz ◽  
Kevin Y. Zhang ◽  
James A. Moore
Keyword(s):  
Experimental Evaluation ◽  
Noise Sources ◽  
Wind Noise
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