quality of data
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Author(s):  
Celalettin Yuce ◽  
Ozhan Gecgel ◽  
Oguz Dogan ◽  
Shweta Dabetwar ◽  
Yasar Yanik ◽  
...  

Abstract The improvements in wind energy infrastructure have been a constant process throughout many decades. There are new advancements in technology that can further contribute towards the Prognostics and Health Management (PHM) in this industry. These advancements are driven by the need to fully explore the impact of uncertainty, quality and quantity of data, physics-based machine learning (PBML), and digital twin (DT). All these aspects need to be taken into consideration to perform an effective PHM of wind energy infrastructure. To address these aspects, four research questions were formulated. What is the role of uncertainty in machine learning (ML) in diagnostics and prognostics? What is the role of data augmentation and quality of data for ML? What is the role of PBML? What is the role of the DT in diagnostics and prognostics? The methodology used was Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA). A total of 143 records, from the last five years, were analyzed. Each of the four questions was answered by discussion of literature, definitions, critical aspects, benefits and challenges, the role of aspect in PHM of wind energy infrastructure systems, and conclusion.


2022 ◽  
Vol 69 (1) ◽  
pp. 1-18
Author(s):  
Xin-Ran Li

In spite of big data and new techniques, the phylogeny and timing of cockroaches remain in dispute. Apart from sequencing more species, an alternative way to improve the phylogenetic inference and time estimation is to improve the quality of data, calibrations and analytical procedure. This study emphasizes the completeness of data, the reliability of genes (judged via alignment ambiguity and substitution saturation), and the justification for fossil calibrations. Based on published mitochondrial genomes, the Bayesian phylogeny of cockroaches and termites is recovered as: Corydiinae + (((Cryptocercidae + Isoptera) + ((Anaplectidae + Lamproblattidae) + (Tryonicidae + Blattidae))) + (Pseudophyllodromiinae + (Ectobiinae + (Blattellinae + Blaberidae)))). With two fossil calibrations, namely, Valditermes brenanae and Piniblattella yixianensis, this study dates the crown Dictyoptera to early Jurassic, and crown Blattodea to middle Jurassic. Using the ambiguous ‘roachoid’ fossils to calibrate Dictyoptera+sister pushes these times back to Permian and Triassic. This study also shows that appropriate fossil calibrations are rarer than considered in previous studies.


2022 ◽  
Vol 1 (1) ◽  
pp. 23-34
Author(s):  
I Gusti Ayu Agung Omika DEWI

In general, in qualitative research there are several methods of data collection, namely documentation, interviews, surveys, focus group discussions, observation, participatory arrangements and qualitative audio-visual material. The aim of this paper discusses about the method of data collection in qualitative research, especially in accounting research interpretive. After going through the literature review process, it can be seen that the quality of data in interpretive accounting research is strongly influenced by the ability of the researcher to carry out its role as a research instrument. Researchers should be able to ' merge' with the object of research so as to choose or combine the data collection method that is appropriate to be able to understand and interpret the research object corresponding subject's perspective or the communities studied in depth according interpretive characteristics.


MAUSAM ◽  
2022 ◽  
Vol 64 (1) ◽  
pp. 97-104
Author(s):  
R.C. BHATIA ◽  
A.K. SHARMA

fiNys pkj n’kdksa ls m".kdfVca/kh; pØokrksa ¼Vh-lh-½ ds egRoiw.kZ izs{k.k miyC/k djkus esa ekSle foKkfud mixzgksa dh {kerkvksa ls lHkh ifjfpr gSA Hkw&LFkSfrd ekSle foKkfud mixzgksa ls izkIr n`’;] vojDr vkSj ty ok"i pSuyksa ls i`Foh ds es?kkPNknu ds yxkrkj  izkIr gksus okys fp= vkSj bu vk¡dM+ksa ls ek=kRed mRiknksa dks rS;kj djus dh {kerk lcls egRoiw.kZ gSA ekSle foKkfud mixzg v/;;u lgdkjh laLFkku           ¼lh-vkbZ-,e-,l-,l-½ foLdkasflu ;wfuoflZVh] ;w-,l-,- esa fiNys dqN o"kksZa esa fd, x, vuqla/kku ,oa fodkl iz;klksa ls m".kdfVca/kh; pØokrksa ds Lopkfyr fo’ys"k.k ds fy, ,d mUur M~oksjd rduhd ¼,-Mh-Vh-½ dk fodkl fd;k x;k gSA mRrjh vVykafVd vkSj dSfjfc;u lkxj esa vkus okys pØokrksa ds fo’ys"k.k ds fy, bl rduhd dk izpkyukRed mi;ksx fd;k tk jgk gSA tcfd Hkkjrh; leqnzksa esa ijEijkxr M~oksjd rduhd          ¼Mh-Vh-½ csgrj dk;Z djrh gS rFkkfi gekjs {ks= esa bl le; izpkyukRed vk/kkj  ij ,-Mh-,- dk mi;ksx bruk dkjxj ugha gSA   lh-vkbZ-,e-,l-,l- esa fiNys dqN o"kksaZ esa vuqla/kku ,oa fodkl iz;klksa ls mixzg ds vk¡dM+ksa ls izkIr fd, x, ek=kRed mRiknksa esa Hkh dkQh lq/kkj gqvk gSA bu mRiknksa esa fuf’pr :i esa m".kdfVca/kh; pØokrksa ds fo’ys"k.k esa lq/kkj vk;k gS vkSj ;s m".kdfVca/kh; pØokrksa dh Hkkoh xfr fn’kk dk iwokZuqeku djus ds fy, egRoiw.kZ lwpuk miyC/k djkrs gaSA Hkkjrh; mixzgksa ds vk¡dM+ksa ls orZeku esa izpkyukRed mRiknksa dh xq.koRrk midj.kksa ds vifj"—r foHksnu ij vk/kkfjr gSA vxys o"kZ ¼2013½ ls bulSV Ja[kyk ds u, mixzg ls vf/kd csgrj xq.koRrk ds vk¡dM+sa miyC/k gksus ls mRiknksa dh xq.koRrk esa vkSj vf/kd lq/kkj vkus dh vPNh laHkkouk gSA lw{e rajx vk/kkfjr midj.kksa ls izkIr vk¡dMsa+  Hkh m".kdfVca/kh; pØokr ds fo’ys"k.k ds fy, vfrfjDr mi;ksxh lwpuk miyC/k djkrs gSaA Åijh {kksHkeaMy esa m".k dksj folaxfr m".kdfVca/kh; pØokr dh rhozrk dk mi;ksxh lwpd gSA Capabilities of meteorological satellites to provide vital observations on Tropical Cyclones (TC) are well known since more than last four decades. Most important are the frequent pictures of earth’s cloud cover in the visible, IR and water vapour channels obtained from Geostationary meteorological satellites together with the capability of generating a number of quantitative products from these data. R&D efforts of last several years at the Cooperative Institute of Meteorological Satellite Studies (CIMSS), Wisconsin University, USA have culminated into development of an Advanced Dvorak’s Technique (ADT) for automatic analysis of Tropical Cyclones. It is in operational use for analysis of North Atlantic and Caribbean Sea cyclones. It has been used on experimental basis at Satellite Meteorology Center, IMD while the conventional Dvorak Technique (DT) works well over the Indian seas, experience of using ADT does not permit at present its use on operational basis over our region. R&D efforts of last several years at CIMSS have also resulted in lot of improvements in the Quantitative products derived from the satellite data. These products have certainly improved the analysis of TC and have provided useful information for predicting the future intensity/movement of TCs. Quality of currently operational products from Indian satellite data is limited by the coarser resolution of the instruments. With the availability of much better quality of data from the new satellite of INSAT series from year (2013) onward there is a good possibility of making further improvements in the quality of products. Data obtained from microwave based instruments also provides useful additional information for TC analysis. The warm core anomaly in the upper troposphere is a useful indicator of the TC intensity.


2022 ◽  
pp. 149-163
Author(s):  
Jorge Lima de Magalhães ◽  
Luc Quoniam ◽  
Zulmira Hartz ◽  
Henrique Silveira ◽  
Priscila da Nobrega Rito

The 21st century brings an information revolution unprecedented in human history. The knowledge management of the data generated daily is a constant challenge for organizations and in all areas of science. Nevertheless, it is extremely relevant to the health area since it promotes the individual's well-being and health. In this sense, the quality of data, information, processes, and production of products and healthcare for the populations of the countries have increasingly become global concerns. Therefore, thinking about health only as a burden is a short-sighted thought. The new era of big data requires innovative knowledge management for global health, where quality is also guiding the new times. This chapter presents a reflection of the new times and management challenges for quality in global health and One Health.


2022 ◽  
pp. 197-217
Author(s):  
Gregory Smith ◽  
Thilini Ariyachandra

Disaster recovery management requires agile decision making and action that can be supported through business intelligence (BI) and analytics. Yet, fundamental data issues such as challenges in data quality have continued to plague disaster recovery efforts leading to delays and high costs in disaster support. This chapter presents an example of these issues from the 2005 Atlantic hurricane season, where Hurricane Katrina wreaked havoc upon the city of New Orleans forcing the Federal Emergency Management Agency (FEMA) to begin an unprecedented cleanup effort. The chapter brings to light the failings in record keeping during this disaster and highlight how a simple BI application can improve the accuracy and quality of data and save costs. It also highlights the ongoing data driven issues in disaster recovery management that FEMA continues to confront and the need for integrated centralized BI and analytics solutions extending to the supply chain that FEMA needs to become more nimble and effective when dealing with disasters.


2021 ◽  
Author(s):  
Sarah Holmes Watkins ◽  
Karen Ho ◽  
Christian Testa ◽  
Louise Falk ◽  
Patrice Soule ◽  
...  

Background: DNA methylation (DNAm) is commonly assayed using the Illumina Infinium MethylationEPIC BeadChip, but there is currently little published evidence to define the lower limits of the amount of DNA that can be used whilst preserving data quality. Such evidence is valuable for analyses utilising precious or limited DNA sources. Materials and methods: We use a single pooled sample of DNA in quadruplicate at three dilutions to define replicability and noise, and an independent population dataset of 328 individuals (from a community-based study including US-born non-Hispanic Black and white persons) to assess the impact of total DNA input on the quality of data generated using the Illumina Infinium MethylationEPIC BeadChip. Results: Data are less reliable and more noisy as DNA input decreases to 40ng, with clear reductions in data quality; however samples with a total input as low as 40ng pass standard quality control tests, and we observe little evidence that low input DNA obscures the associations between DNAm and two phenotypes, age and smoking status. Conclusions: DNA input as low as 40ng can be used with the Illumina Infinium MethylationEPIC BeadChip, provided quality checks and sensitivity analyses are undertaken.


2021 ◽  
Vol 21 (2) ◽  
pp. 146-153
Author(s):  
Bahrul Ma'ani ◽  
Supyani - ◽  
Almusrijah Aini ◽  
Indah Maulinda

Funds with the ‘mudharabah’ principle are investment funds so that Islamic banks share the proceeds only to the owners of funds that use the ‘mudharabah’ principle. The collection of funds is applied to savings and deposit products that use ‘mudharabah’ contracts. The amount of income received by the owner of the ‘mudharabah’ fund is part of the income received in cash from the distribution of funds by Islamic banks. Therefore, the funds collected with the ‘mudharabah’ principle are one of the elements in calculating profit sharing. The problem raised in the research is how to implement the ‘mudharabah’ contract and its impact on fund-raising products in Islamic banking. Two main things affect the quality or results of research: the quality of research instruments and the quality of data collection. The quality of research instruments relates to the validity and reliability of the instruments and the quality of data collection regarding the accuracy of the methods used to collect data. Therefore, an instrument tested for validity and reliability may not necessarily produce valid and reliable data if the instrument is not appropriately used in collecting data. The type of research was the quantitative technique used through interviews, observations, and documentation. In analyzing the data obtained, the authors used descriptive techniques. The results showed that applying ‘mudharabah’ contracts to fund-raising products at Islamic banks is only applied to savings and deposit products, and the advantages of products that use ‘mudharabah’ contracts are basically to make it easier for customers to transact. These products can be used as financing guarantees. There are supporting and inhibiting factors in the products that use ‘mudharabah’ contracts. These supporting factors include the existence of Islamic sharia principles, which are used as a reference for implementing a profit-sharing system on all products, especially savings and deposit products, and the existence of infrastructure facilities within the company that are pretty complete. Meanwhile, the inhibiting factors include the lack of socialization regarding Islamic banks' existence. Abstrak: Dana dengan prinsip 'mudharabah' adalah dana investasi sehingga bank syariah membagi hasil hanya kepada pemilik dana yang menggunakan prinsip 'mudharabah'. Penghimpunan dana diterapkan pada tabungan dan deposito dengan akad mudharabah. Besarnya pendapatan yang diterima oleh pemilik dana mudharabah merupakan bagian dari pendapatan yang diterima secara tunai dari penyaluran dana oleh bank syariah. Oleh karena itu, dana yang dihimpun dengan prinsip 'mudharabah' menjadi salah satu unsur dalam menghitung bagi hasil. Masalah yang diangkat dalam penelitian ini adalah bagaimana penerapan akad mudharabah dan dampaknya terhadap penghimpunan dana di perbankan syariah. Dua hal utama yang mempengaruhi kualitas atau hasil penelitian: kualitas instrumen penelitian dan kualitas pengumpulan data. Kualitas instrumen penelitian berkaitan dengan validitas dan reliabilitas instrumen serta kualitas pengumpulan data mengenai ketepatan metode yang digunakan untuk mengumpulkan data. Jenis penelitian yang digunakan adalah teknik kuantitatif melalui wawancara, observasi, dan dokumentasi. Dalam menganalisis data yang diperoleh, penulis menggunakan teknik deskriptif. Hasil penelitian menunjukkan bahwa penerapan akad mudharabah pada produk penghimpunan dana di bank syariah hanya berlaku pada produk tabungan dan deposito, dan keunggulan produk yang menggunakan akad mudharabah pada dasarnya adalah untuk memudahkan nasabah dalam bertransaksi. Produk-produk ini dapat digunakan sebagai jaminan pembiayaan. Ada faktor pendukung dan penghambat dalam produk yang menggunakan akad mudharabah. Faktor pendukung tersebut antara lain adanya prinsip syariah Islam yang dijadikan acuan penerapan sistem bagi hasil pada semua produk khususnya produk tabungan dan deposito, serta adanya sarana prasarana di dalam perusahaan yang cukup lengkap. Sedangkan faktor penghambatnya antara lain kurangnya sosialisasi tentang keberadaan bank syariah. Kata-kata kunci: mudharabah, implementasi, dampak, produk penghimpunan dana, perbankan syariah.


GERAM ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 108-116
Author(s):  
Wenty Agustin ◽  
M. Nur Mustafa ◽  
Elvrin Septyanti

This study aims to identify and describe the form of language errors at the syntactic level in the sentence field in the Youtube commentary of Najwa Shihab Melawan Corona. This type of research is qualitative or can be interpreted as research that emphasizes the quality of data collected using descriptive methods. Sources of data in this study are comments written by YouTube users on the Najwa Shihab Melawan Corona broadcast. The data in this study are writings that represent the opinions of Youtube users regarding related videos. The data collection techniques used in this study were reading and note-taking techniques. The data analysis technique used in this study was data reduction, data presentation, and conclusion drawing. The results of this study found language errors in the sentence field in the form of non-subjected sentences, non-predicated sentences, lucky sentences, duplication of subjects, illogical sentences, ambiguity sentences, conjunction omissions, Excessive use of conjunctions, unparalleled sequences, use of foreign terms and use of unnecessary question words.


2021 ◽  
Vol 12 (4) ◽  
pp. 889-905
Author(s):  
Iwona Markowicz ◽  
Paweł Baran

Research background: Transactions in international trade of goods are recorded in two sources, on the side of the seller's country and on the side of the buyer's country. The confrontation of such data makes it possible to measure their quality. An inconsistency between the data is called mirror data asymmetry. Purpose of the article: The aim of the paper is to adapt the methods developed by the Authors to study mirror data asymmetry to commodity group markets examination. The quality of data on trade within specific commodity groups (CN chapters) in intra-Community trade was compared. The data were aggregated by country. The indicators used allow for the indication of commodity groups with high mirror data compatibility and those with data asymmetry between intra-Community supplies (ICS) and acquisitions (ICA). Moreover, the commodity groups for which the value-based and quantity-based approaches give different results have been identified. Methods: Based on the literature on the subject and their own research, the Authors have developed a group of methods for studying the asymmetry of mirror data. The proposed indicator formulas are based on various data aggregation approaches. The research used data on intra-Community supplies and acquisitions of goods broken down into 97 chapters of the Combined Nomenclature (CN). Differences between the ICS and ICA in particular commodity groups were aggregated for all pairs of EU countries. The data comes from the Comext database, provided by Eurostat. Findings & value added: The results of the analysis are rankings of the Combined Nomenclature (CN) chapters by the quality of data on ICS and ICA. Lists of CN chapters have been created for discrepancies both in value and weight of goods. Thus, areas of necessary intensification of the work of public statistics services to improve data reliability were identified.


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