scholarly journals SENTENCE ORDERING USING CLUSTER CORRELATION AND PROBABILITY IN MULTI-DOCUMENTS SUMMARIZATION

2017 ◽  
Vol 10 (2) ◽  
pp. 77
Author(s):  
I Gusti Agung Socrates Adi Guna ◽  
Suci Nur Fauziah ◽  
Wanvy Arifha Saputra
Keyword(s):  
Previous Method ◽  
New Method ◽  
User Evaluation ◽  
Document Summarization ◽  
Chronological Sequence ◽  
Effect Relation ◽  
Cluster Correlation

Most of the document summary are arranged extractive by taking important sentences from the document. Extractive based summarization often not consider the connection sentence.  A good sentence ordering should aware about rhetorical relations such as cause-effect relation, topical relevancy and chronological sequence which exist between the sentences.  Based on this problem, we propose a new method for sentence ordering in multi document summarization using cluster correlation and probability for English documents. Sentences of multi-documents are grouped based on similarity into clusters. Sentence extracted from each cluster to be a summary that will be listed based on cluster correlation and probability. User evaluation showed that the summary result of proposed method easier to understanding than the previous method. The result of ROUGE method also shows increase on sentence arrangement compared to previous method.

Parameter identification of nonlinear rotor-bearing system based on improved kriging surrogate model

2016 ◽  
Vol 23 (5) ◽  
pp. 794-807 ◽  
Author(s):  
Fang Han ◽  
Xinglin Guo ◽  
Changki Mo ◽  
Haiyang Gao ◽  
Peijun Hou
Keyword(s):  
Evolutionary Algorithm ◽  
Surrogate Model ◽  
Computation Time ◽  
Previous Method ◽  
New Method ◽  
Structure Parameters ◽  
Kriging Surrogate Model ◽  
Rotor Bearing ◽  
Robustness To Noise ◽  
Bearing System

This paper presents a new method which can identify the structure parameters (such as the bearing parameters, the nonlinear rub-impact parameters, and so on) of a nonlinear rotor-bearing system. Based on an improved kriging surrogate model and evolutionary algorithm (IKSMEA), the new method can provide more accurate results with less computation time. The initial kriging surrogate model (KSM) is constructed by the samples of varying structure parameters and their response values. According to the identified process, a multi-point addition criterion is proposed and more appropriate predicted points are added to update the KSM. Numerical studies and experimental validation of a nonlinear rotor-bearing system are performed. Comparing to the previous method (KSM and evolutionary algorithm), the new method satisfies the condition of convergence with less updating steps and increased robustness to noise. The identified results indicate that the IKSMEA can identify the nonlinear rotor system more effectively and accurately.

The Central California Chronological Sequence Re-Examined

1953 ◽  
Vol 18 (4) ◽  
pp. 341-353 ◽  
Author(s):  
Russell E. Belous
Keyword(s):  
New Method ◽  
Large Measure ◽  
Central California ◽  
Temporal Relationships ◽  
Chemical Soil ◽  
Chronological Sequence ◽  
The Subject ◽  
California Archaeology ◽  
Stratigraphic Sequences

For a number of years the subject of California archaeology has undergone a great deal of discussion. A large measure of this discussion has been concerned with the problem of chronology. Heizer (1949) has postulated a classification of cultural and temporal relationships for central California. His chronology is based primarily on stratigraphic sequences together with intrasite comparisons and geological-chemical soil and bone analysis.This paper is an attempt to examine a part of his sequences using a new method for the chronological ordering of archaeological deposits (Brainerd 1951; Robinson 1951). The material to follow will be divided into three categories: 1) theory and method; 2) a discussion of the sequences resulting from the application of the method used here; and 3) the nature of the conclusions which one may safely draw in the light of 1) and 2) above.

Determination of Alkalinity of Reclaimed Rubber

1931 ◽  
Vol 4 (2) ◽  
pp. 273-280
Author(s):  
Henry F. Palmer ◽  
George W. Miller
Keyword(s):  
Previous Method ◽  
New Method ◽  
End Point ◽  
Alkaline Material

Abstract A new method is given for determining the relative alkalinity of reclaimed rubber. The extraction of the alkaline material is based on a digestion of the sample in a mixture of ethanol, benzene, and water. The method is compared with the previous method described by the authors in 1928. The experimental figures given show that the new method gives results which are dependable, and approximately four times as accurate as the previous method. The higher degree of accuracy is due to the elimination of much of the personal error, the extraction of a larger percentage of alkaline material, and a more accurate titration end point. The purpose of this paper is to present a method for determining the relative alkalinity of reclaimed rubber which, in the authors??? opinion, has certain advantages over other methods in use at present.

Modeling Arbitrarily Shaped Liquid Pipelines Using a Segmented Transmission Line Model

2020 ◽  
Vol 142 (6) ◽  
Author(s):  
Travis Wiens
Keyword(s):  
Transmission Line ◽  
Method Of Characteristics ◽  
Previous Method ◽  
New Method ◽  
Transmission Line Model ◽  
Computationally Efficient ◽  
Time Step ◽  
Line Model ◽  
Order Of Magnitude ◽  
Variable Time Step

Abstract This paper presents a new method of simulating the dynamic flow and pressure of laminar liquid flow through pipes of arbitrarily changing cross section. This method uses a segmented model based on the previously presented tapered transmission line model (TLM). This new method is computationally efficient and has comparable accuracy to previous methods such as the method of characteristics (MOC), but allow for more flexibility in solution time-step (such as accommodating variable time-step solvers), which is required if the rest of the system model has stiff equations. For the sample geometry presented, the new model calculates the dynamic response an order of magnitude faster than the previous method of characteristics solution, with minimal loss of accuracy.

scholarly journals Nonparametric Conditional Heteroscedastic Hourly Probabilistic Forecasting of Solar Radiation

J ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 174-191 ◽  
Author(s):  
John Boland ◽  
Adrian Grantham
Keyword(s):  
Solar Radiation ◽  
Prediction Interval ◽  
Bootstrap Method ◽  
Local Variation ◽  
Previous Method ◽  
New Method ◽  
Probabilistic Forecasting ◽  
Clear Sky ◽  
Forecasting Method ◽  
Better Than

We develop a new probabilistic forecasting method for global horizontal irradiation (GHI) by extending our previous bootstrap method to a case of an exponentially decaying heteroscedastic model for tracking dynamics in solar radiance. Our previous method catered for the global systematic variation in variance of solar radiation, whereas our new method also caters for the local variation in variance. We test the performance of our new probabilistic forecasting method against our old probabilistic forecasting method at three locations: Adelaide, Darwin, and Mildura. These locations are chosen to represent three distinct climates. The prediction interval coverage probability, prediction interval normalized averaged width and Winkler score results from our new probabilistic forecasting method are encouraging. Our new method performs better than our previous method at Adelaide and Mildura; regions with a higher proportion of clear-sky days, whereas our previous method performs better than our new method at Darwin; a region with a lower proportion of clear-sky days. These results suggest that the ideal probabilistic forecasting method might be climate specific.

Ultrastructural Localization of NA+-K+ -Atpase in Rabbit Cornea Using 5-Nitroindoxyl Phosphate as Substrate

1977 ◽  
Vol 35 ◽  
pp. 444-445
Author(s):  
K. C. Tsou ◽  
Mahin Khatami
Keyword(s):  
Endothelial Cells ◽  
Comparative Study ◽  
Ultrastructural Localization ◽  
Ultrastructural Level ◽  
Endothelial Damage ◽  
Previous Method ◽  
New Method ◽  
Rabbit Cornea ◽  
Fixed Tissue ◽  
Nitrophenyl Phosphate

Recently, Leunberger and Novikoff (1) have shown that the endothelial cells are the primary sites of Na+-K+-ATPase, a key mechanism in the control of hydration of cornea. Since this enzyme would be a useful marker for our study of endothelial damage by CO2 laser (2), we have undertaken a comparative study for the localization of this enzyme at ultrastructural level with different methods. In the course of this work we developed a new method with the use of 5-nitroindoxyl phosphate as a synthetic substrate. This new substrate, like p-nitrophenyl phosphate (3), meets the requirements for the demonstration of the K+ activated step of dephosphorylation of ATPase. In addition, it can be used with glutaraldehyde fixed tissue, thereby offering an important advantage over the previous method (3).Rabbit corneas were freshly excised under pentobarbitol anesthesia.

scholarly journals Fractionation of Soil Organic Matter into Labile and Stable Fractions

Agronomy ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 73
Author(s):  
Marek Kopecký ◽  
Ladislav Kolář ◽  
Kristýna Perná ◽  
Radka Váchalová ◽  
Petr Mráz ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Classical Method ◽  
Fulvic Acids ◽  
Exchange Capacity ◽  
Previous Method ◽  
New Method ◽  
Laboratory Equipment ◽  
Modified Method ◽  
Organic Fractions

The present study aims to test and evaluate the efficiency of a new modified method of organic matter evaluation. It allows the assessment of the quality and quantity of the primary soil organic matter and the stable organic fractions separately. The new method was tested in six soil samples of different localities in the Czech Republic. This method is based on observing reaction kinetics during the oxidation of soil organic matter and measuring the cation-exchange capacity of stable organic fractions. The results were compared with classical methods, which rely on the isolation of humic substances, determination of the content of humic acids and fulvic acids and their ratio CHA:CFA, quotient E4/6, and fractionation of soil organic matter according to resistance to oxidation. It turned out that the results of the new modified method are more sensitive in comparison with the results obtained by classical procedures. The linear regression demonstrated the dependence between the amounts of soil organic matter determined by the classical method compared with the modified method. Moreover, the new modified method was found to be faster and not demanding on laboratory equipment. The new method has been improved to be easily repeatable, and some shortcomings of the previous method were eliminated. Based on our results and other recent studies, the modified method may be recommended for the practical evaluation of soil organic matter conditions.

A Method for a Direct Measure of Entrainment and Detrainment

2020 ◽  
Vol 148 (8) ◽  
pp. 3329-3340
Author(s):  
Zhiting Wang
Keyword(s):  
Exchange Rates ◽  
Cloud Model ◽  
Deep Convection ◽  
Correlation Coefficients ◽  
Interface Velocity ◽  
Small Region ◽  
Previous Method ◽  
New Method ◽  
Mass Fluxes ◽  
Free Air

Abstract The entrainment and detrainment rates are important quantities characterizing airmass exchange between clouds and the environment. One of the challenges in calculating the rates is the need to know the velocity vector of the cloud interface in relation to that of the cloud-free air; however, the interface is not well resolved in most cloud model simulations and so the precise value of the vector is not known. Here a new method is described to approximately calculate mass fluxes across the cloud surface in well-resolved simulations of cumulus convection. The method does away with the need to calculate a cloud interface velocity and instead uses gradients of a defined cloud scalar across the cloud interface. As a result, the entrainment and detrainment rates are expressed as an integration over a small region around the cloud interface. The integrand is composed of the total derivative of the cloud scalar. The new method is applied to large-eddy simulations (LES) of a shallow cumulus case and a deep convection case. Compared to a previous method, the approach described here gives 1.5–2 times smaller exchange rates and shows less noise. The smaller exchange rates are explained as the result of differences in how the two methods correct for the advective contribution to variations of cloud volume. Derived two-dimensional distributions of the exchange rates agree well for both methods. Spatial correlation coefficients are about 0.69–0.88 for entrainment and 0.55–0.78 for detrainment.

OCDs Reliability Screening Using Normalization Variance of Noise Spectrum

2011 ◽  
Vol 130-134 ◽  
pp. 72-75
Author(s):  
Qiu Zhan Zhou ◽  
Jian Gao ◽  
Na Lei ◽  
Dan’e Wu
Keyword(s):  
Screening Method ◽  
Low Frequency ◽  
Noise Spectrum ◽  
Previous Method ◽  
New Method ◽  
Excess Noise ◽  
Frequency Noise ◽  
Related Characteristic ◽  
The Relationship ◽  
Large Frequency

Considering the inflexibility and limitations of the traditional frequency-domain OCDs reliability screening method using noise parameters at fixed frequency-points, we put forward a new method using the normalization variance of a large frequency-band noise spectrum in this paper. The possible sources of excess noise in OCDs and the relationship between low-frequency noise and reliability are studied at first, and then we describe the detailed process of the method for reliability screening, including the normalization method of noise spectrum, the calculations of variance and related characteristic quantities. At last, compare the screening results obtained by both of the previous method and this new method, and it demonstrated that this method is much more accurate and reliable.

The Oscillating Fluid Mechanics Method (OFMM) for Studying Oil Film Oscillation and Dynamic Characteristics of Journal Bearings

1996 ◽  
Vol 118 (1) ◽  
pp. 239-245 ◽  
Author(s):  
Chen Zuoyi ◽  
Sun Yongzhong
Keyword(s):  
Fluid Mechanics ◽  
Journal Bearings ◽  
Previous Method ◽  
New Method ◽  
Oil Film ◽  
Rotordynamic Coefficients ◽  
Steady State Method ◽  
Calculational Procedure ◽  
State Method ◽  
Oscillating Fluid Mechanics

A new method to study oil film oscillation and to determine the unstable rotational speed and rotordynamic coefficients of bearings is presented. Differences between the new method called the Oscillating Fluid Mechanics Method (OFMM) and the previous method (quasi-steady state method) are discussed. Insufficiencies of the previous method are analyzed. The theory and calculational procedure of OFMM are given. Calculated results show that this new method provides significantly improved predictions.

Sign in / Sign up

Export Citation Format

Share Document