640,903 Hits in 9.7 sec

Selective predicate prediction for out-of-order processors

Eduardo Quiñones, Joan-Manuel Parcerisa, Antonio Gonzalez
2006 Proceedings of the 20th annual international conference on Supercomputing - ICS '06  
However, the use of predicated execution in out-of-order processors has to deal with two problems: there can be multiple definitions for a single destination register at rename time, and instructions with  ...  It is useful to eliminate hard-to-predict branches and to reduce the severe performance impact of branch mispredictions.  ...  An adaptive threshold mechanism must tradeoff the two effects, but giving more weight to flush reduction because it causes a higher performance degradation.  ... 
doi:10.1145/1183401.1183410 dblp:conf/ics/QuinonesPG06 fatcat:x7b3z6pnjnefnhrcmkbdw5g64a

Definitive Drug and Metabolite Screening in Urine by UPLC–MS-MS Using a Novel Calibration Technique

Thomas G. Rosano, Patrice Y. Ohouo, John J. LeQue, Scott M. Freeto, Michelle Wood
2016 Journal of Analytical Toxicology  
The study shows the applicability of definitive testing as an alternative to immunoassay screening and demonstrates a new approach to normalization of matrix effect.  ...  The aim of this study is to develop and validate a definitive test for rapid and threshold accurate screening of 33 drugs or metabolites (analytes) in urine.  ...  Materials and methods Technique principle A novel technique (TAC) is used to achieve matrix effect normalization and threshold accurate detection of the 33 analytes.  ... 
doi:10.1093/jat/bkw050 pmid:27562968 fatcat:fooymasoljdu3ase36j7b3bwge

Diversified Routing Queries in Dynamic Road Networks

Jianmin Li, Ying Zhong, Shunzhi Zhu
2019 IEEE Access  
A series of optimization techniques is developed to further enhance the query efficiency.  ...  Given a dynamic transportation network, a source, a destination, a travel time threshold τ t , a congestion probability threshold τ p , and a global travel cost threshold τ g , the DR query finds: 1) the  ...  EFFECT OF TRAVEL TIME THRESHOLD τ.t We also study the effect of travel time threshold τ.t on the performance of TPT-DR query processing (see Algorithm 3 in Section IV), and the experimental results are  ... 
doi:10.1109/access.2019.2893411 fatcat:g7plxrpawnf6jdzdv5sxwgx3ja

A simple and unambiguous definition of threshold voltage and its implications in deep-submicron MOS device modeling

X. Zhou, K.Y. Lim, D. Lim
1999 IEEE Transactions on Electron Devices  
A new definition of MOSFET threshold voltage is proposed, namely, the "critical-current at linear-threshold" method, which has a unique solution and is very simple to measure.  ...  The proposed method effectively removes ambiguity of de facto industry standard of the constant-current method for MOS threshold voltage.  ...  A technique for direct measuring the effective channel length and series resistance of submicron MOSFET's has been developed based on this V t definition [9] .  ... 
doi:10.1109/16.753720 fatcat:ryqphzqwjvfxrkrga7a256km6y

Cortical evoked response audiometry thresholds and neuroleptic, sedative, hypnotic drugs

P H Dejonckere, J Lebacq, C Coryn
2000 International Tinnitus Journal  
The purpose of our study was to assess the reliability of SVR-threshold definition in subjects taking neuroleptic, sedative, and hypnotic drugs.  ...  A highly significant difference is observed between the two groups: In the group receiving drugs, the SVR threshold for 3 kHz is 12.1 dB (average) higher than the BER threshold, whereas in the group without  ...  Effects of specific drugs cannot be identified in this study, owing to the limited number of subjects and to combined intake.  ... 
pmid:14689614 fatcat:5c4ezy2hv5az7nrcg2ieiphtau

Assorted Techniques for Defining Image Descriptors to Augment Content Based Classification Accuracy

2020 International Journal of Engineering and Advanced Technology  
Feature extraction techniques are the foundation of CBIC to represent the image data in the form of feature vectors.  ...  Image data has turned out to be a significant means of expression with the advancements of digital image processing technologies.  ...  Effect of feature representation for selection of dictionary for video summarization is studied and carried out by means of deep feature extraction [16] .  ... 
doi:10.35940/ijeat.b4208.029320 fatcat:jwe6bb5ymbgjdhmqzssuhzpogm

Identifying Defining Aspects of Chronic Fatigue Syndrome via Unsupervised Machine Learning and Feature Selection

Samuel P. Watson, Amy S. Ruskin, Valerie Simonis, Leonard A. Jason, Madison Sunnquist, Jacob D. Furst
2014 International Journal of Machine Learning and Computing  
We first suggest a method of determining the presence of a symptom based on its frequency and severity using an unsupervised dynamic thresholding approach.  ...  This threshold is used to diagnose subjects with 54 symptoms related to CFS. Based on these diagnoses, k-means is used to predict the presence of CFS.  ...  The static two-two threshold was similar, but used a score of two as the minimum for symptom presence.  ... 
doi:10.7763/ijmlc.2014.v4.400 fatcat:kumiqtwhcvc2bkayw2ecqjq6m4

Preface to the Special Issue "Rainfall Thresholds and Other Approaches for Landslide Prediction and Early Warning"

Samuele Segoni, Stefano Luigi Gariano, Ascanio Rosi
2021 Water  
Conflicts of Interest: The authors declare no conflict of interest.  ...  A statistical analysis on the effect of outliers in small datasets on the estimation of parameter uncertainties with bootstrapping statistical technique is a valid methodological corollary to this work  ...  Results are encouraging since a quantitative and comparative validation shows that the effectiveness of the model is higher than other approaches based on I-D and E-D thresholds. − Given that a recent  ... 
doi:10.3390/w13030323 fatcat:qp2vlilu7bfpbg5cjd67nmw4jm

Effective Surface Area of Current Density Distribution Maps

Anton Oleksandrovich Popov, Yevhenii Yevheniiovych Udovychenko, I. A. Chaikovsky
2014 Electronics and Communications  
Magnetocardiography (MCG) is a technique of measuring the weak magnetic fields generated in the heart during its functioning.  ...  MCG can be measured using a superconducting quantum interference device (SQUID) sensor that converts magnetic flux to voltage, and is the most sensitive sensor to detect magnetism.  ...  But two values isn't enough for definite decision about CDDMs set of new patient belonging to the studied group. Fig. 2.  ... 
doi:10.20535/2312-1807.2014.19.5.38822 fatcat:oymugzolqbfdrasv6zademc6je

Evaluation of Automatic Building Detection Approaches Combining High Resolution Images and LiDAR Data

Txomin Hermosilla, Luis A. Ruiz, Jorge A. Recio, Javier Estornell
2011 Remote Sensing  
The results obtained show a high efficiency of the evaluated methods for building detection techniques, in particular the thresholding-based approach, when the parameters are properly adjusted and adapted  ...  The thresholding-based approach is founded on the establishment of two threshold values: one refers to the minimum height to be considered as building, defined using the LiDAR data, and the other refers  ...  and the support of the Spanish Instituto Geográfico Nacional (IGN).  ... 
doi:10.3390/rs3061188 fatcat:lvof272xmnb3tibzitzd43zz5q

Image Segmentation Methods for Flood Monitoring System

Nur Atirah Muhadi, Ahmad Fikri Abdullah, Siti Khairunniza Bejo, Muhammad Razif Mahadi, Ana Mijic
2020 Water  
This paper presents a comparative study of image segmentation techniques used in extracting water information from digital images. The segmentation methods were evaluated visually and statistically.  ...  Therefore, we concluded that the hybrid technique is a promising segmentation method compared to the others in extracting water features from digital images.  ...  Acknowledgments: The authors appreciate the support for this study from the Universiti Putra Malaysia and the Institute of Aquaculture and Aquatic Sciences.  ... 
doi:10.3390/w12061825 fatcat:7vgikq4b4jagnfntukpsyxcmlu

Competence thresholds for the use of inhalers in people with dementia

1997 Age and Ageing  
Conclusions: MTS can be used to determine the likelihood of a mild or moderately demented patient being able to learn a multiple-stage inhaler technique.  ...  Methods: the ability to learn three inhaler techniques of increasing levels of complexity was studied in 50 normal and demented inhaler-naive elderly people (mean age 81 years) with stable 10-point mini-mental  ...  The study design, by testing technique in ascending order of difficulty on successive days, could have introduced a learning effect which would not be present if the order of testing had been random, although  ... 
doi:10.1093/ageing/26.2.83 pmid:9177663 fatcat:ccgapg4whbbfnpwh7dyxiqk7em

An empirical study on the influence of context in computing thresholds for Chidamber and Kemerer metrics

Leonardo C. Santos, Renata Saraiva, Mirko Perkusich, Hyggo O. Almeida, Angelo Perkusich
2017 Proceedings of the 29th International Conference on Software Engineering and Knowledge Engineering  
For both quasi-experiments, the accuracy of the definition of thresholds improved by considering the context.  ...  Our work is restricted to Chidamber and Kemerer metrics, due to availability of data. We conducted an empirical study composed of two quasi-experiments.  ...  [16] , an empirical study was performed to evaluate the effectiveness of two threshold definition techniques: ROC curves [8] and the Bender method [17] to define thresholds.  ... 
doi:10.18293/seke2017-044 dblp:conf/seke/SantosSPAP17 fatcat:5fjycxktvvcobcfppjunmgfgla

Shot Clustering Techniques for Story Browsing

W. Tavanapong, J. Zhou
2004 IEEE transactions on multimedia  
Existing scene definitions are rather broad, making it difficult to compare the performance of existing techniques and to develop a better one.  ...  This paper introduces a stricter scene definition for narrative films and presents ShotWeave, a novel technique for clustering relevant shots into a scene using the stricter definition.  ...  EXPERIMENTAL STUDY In this section, the performance of the two existing techniques and ShotWeave in terms of segmentation accuracy and time is investigated on two test videos, each lasting more than 100  ... 
doi:10.1109/tmm.2004.830810 fatcat:mab64nvvjrc6lbuo3dbx67xuma


Craig S. Rudick, J. Christopher Mihos, Cameron K. McBride
2011 Astrophysical Journal  
Using a suite of N-body simulations of galaxy clusters specifically tailored to study the intracluster light (ICL) component, we measure the quantity of ICL using a number of different methods previously  ...  We find that techniques which define the ICL solely based on the current position of the cluster luminosity, such as a surface brightness or local density threshold, tend to find less ICL than methods  ...  The authors would like to thank Heather L. Morrison, Paul Harding, and Daniel S. Akerib for many useful suggestions and for advice on defining the focus of this paper.  ... 
doi:10.1088/0004-637x/732/1/48 fatcat:wwh4efbkkrdajg3w27cr5lfr4q
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