Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userPropose a formula for the relation between improving measurement accuracy and reliability in geodetic network
اقتراح صيغة للعلاقة بين تحسين دقة القياس و الموثوقية في الشبكة الجيوديزية
1435
0 15
0
(
0
)
Authors
إياد فحصة( باحث )
Created by
Shamra Editor
Ask ChatGPT about the research
يقدم البحث الصيغة الموسّعةً لعلاقة تحسين دقة القياس (المقدّمة من العالم Otrenbski )، و التي تشمل الشبكات الجيوديزية المرتبطة أو الحرة، مع قياسات مرتبطة أو غير مرتبطة، و التي يتم معالجتها وفق نظرية التربيعات الصغرى. بالإضافة إلى تحسين الدقة العام (Global) يعطي البحث صيغةً إضافيةً تأخذ بالإعتبار تحسين الدقة المحلي الخاص بكل قياسٍ (تحسين الدقة المحلي). و تمَّ البرهان على صحة الصيغة المقترحة بالإعتماد على المصفوفة الجامدة ( Idempotent Matrix ). بالإضافة إلى المفهوم العام لموثوقية الشبكة الجيوديزية المبين في المراجع الجيوديزية، يعطي البحث صيغةً للعلاقة بين تحسين دقة القياس و إحدى ميزات الموثوقية الداخلية (المقدمة من Pelzer)، و المستخدمة في تقييم القياسات الجيوديزية. يكشف البحث و يعطي المؤشرات الرياضية لتفاعل نموذج المعالجة الرياضية مع حدوث الأغلاط في القياسات الجيوديزية.
Research offers expanded version of the relationship to improve measurement accuracy (provided by Otrenbski), which include correlated or free geodetic networks, with correlated or incorrelated observations, which are processed according to the Least Square theory. In addition to enhancing the Global accuracy, Research gives additional formula takes into consideration the enhancement of each observation (local precision). the validity of the proposed formula was proved depending on the Idempotent matrix. In addition to the general concept of the reliability of geodetic network (described in literature), Research gives the formula of the relationship between improvement of measurement accuracy and one of internal reliability features (provided by Pelzer), and used in the evaluation of geodetic measurements. Research find and gives the basic mathematical indicators of the interaction of processing model with the occurrence of errors in geodetic measurements.
References used
Baarda (1968): A testing procedure for use in Geodetic networks, Netherland Geodetic Commision Delft
Schaffrin B.(1997):Reliability measures for correlated observations – J.Engineering Surveying
Ghilani C. D. and P. R. Wolf: Adjustment Computations: Spatial Data Analysis, Fourth Edition © 2006 John Wiley & Sons, Inc. ISBN: 978-0-471-69728-2 37
rate research
Read More
The current research aims to study the effectiveness of Rush model in the grading
scale of poor school adjustment College Maladjustment test of the second version of
Minnesota Multiphasic Personality Revision Minnesota test. It also aims to test th
e
effectiveness of the sample of study on the results of the grading scale poor school
adjustment using the accuracy Criteria of the standard error and stability and information
function. The search results after staging reach a form Summary of the scale process saves
time and effort after the staging process listed unit Logit so were some of the vocabulary is
appropriate to exclude according to suitability index note that the deletion of the
vocabulary has not been on a diagnostic basis, according to statistical values for Bilog, and
therefore an instrument enjoy a high level of accuracy extend specialist holistic perspective
for all effects and health problems and social and psychological responsible for poor
school adjustment, note that access to treatment is successful but accurate assessment that
gives reliable results in the treatment process. As it turns out that the best size of the
sample in the staging process is (700) after any medium samples tested small samples
(300) and large samples (2000) and in accordance with the Criteria for the three-precision,
a standard error and stability and function information.
The work demonstrates the importance of calculation of zenith angel of the primer magnetic field of the transmitter-station through knowledge of the coordinates of both transmitter-station and measure- area due to the use of special equations. They h
ave great importance for electromagnetically field measurements. The direction angels have been calculated for most famous transmitter-stations in some different areas of SYRIA (DRAA and SUWEDA). According to the results, these angels differed with the variation of coordinates of the transmitter in the same location, and some field measurements have confirmed this method.
Pronunciation lexicons and prediction models are a key component in several speech synthesis and recognition systems. We know that morphologically related words typically follow a fixed pattern of pronunciation which can be described by language-spec
ific paradigms. In this work we explore how deep recurrent neural networks can be used to automatically learn and exploit this pattern to improve the pronunciation prediction quality of words related by morphological inflection. We propose two novel approaches for supplying morphological information, using the word's morphological class and its lemma, which are typically annotated in standard lexicons. We report improvements across a number of European languages with varying degrees of phonological and morphological complexity, and two language families, with greater improvements for languages where the pronunciation prediction task is inherently more challenging. We also observe that combining bidirectional LSTM networks with attention mechanisms is an effective neural approach for the computational problem considered, across languages. Our approach seems particularly beneficial in the low resource setting, both by itself and in conjunction with transfer learning.
This paper tries to examine the relationship between analogy and the grammatical
rule. Analogy is one of the basic principles and bases of Arabic grammar during times of
rule formation and judging it. Linguists were divided in their attitude to ana
logy, with
some supporting it and others against it. Grammarians were more inclined toward analogy
than compilers, because grammarians’ research was based on the existing similarity
between words, phrases, and style used in speech reported by tellers of what had been said
by the Arabs. They based their rules and origins of analogy on that similarity. Analogists
transliterated some foreign terms, Arabized, and derived new words out of them in a
manner similar to that done with Arabic terms. However, some grammarians went very far
in their excessive use of analogy to the extent that it becomes far removed from linguistic
reality to be a form riddle and guessing, leading to reaction against analogy then against
grammar. Analogy became an end in itself; it overlooked its original purpose; was then
manifested in rule formation of words said spontaneously.
GPS technology considers the essential tool for establishing geodetic networks.
Static method of GPS is used often in observing geodetic network points. Establishing
geodetic networks using GPS requires accuracy, consistency and economency.
This p
aper discusses influence of observation mode and number of GPS receivers in
accuracy of calculating of coordinates of points. Coordinates of network points are
clculated using tow and three GPS receivers and with diferent methods like radial, traverse,
network.
Comparison between coordinates for network points obtained by several cases is
performed. The differences between coordinates indicate accuracy of network method in
calculating coordinates when three or more receivers are avlible. When tow receivers are
avilable the radial method is the best in accuracy and consistency.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
