Handling missing data of some skewed distributions / (Record no. 56473)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02805cam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223031508.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 160516s2015 ua d f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.18.04.M.Sc.2015.Mo.H |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Meatemed Mohamed Eissawy |
| 245 10 - TITLE STATEMENT | |
| Title | Handling missing data of some skewed distributions / |
| Statement of responsibility, etc. | Mohamed Meatemed Mohamed Eissawy ; Supervised Ahmed Amin Elsheikh , Naglaa Abdelmoneim Morad |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | معالجة البيانات المفقودة لبعض التوزيعات الملتوية |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Mohamed Meatemed Mohamed Eissawy , |
| Date of publication, distribution, etc. | 2015 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 102 Leaves : |
| Other physical details | charts ; |
| Dimensions | 30cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - Institute of Statistical Studies and research - Department of Statistics and Econometrics |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The problem of imputation of missing observations emerges in many areas. Data usually contained missing observations due to many factors, such as machine failures and human error. Incomplete dataset usually causes bias due to differences between observed and unobserved data. The treatment of missing data has been an issue in statistics for some time, but it has come to the fore in recent years. The current interest in missing data stems mostly from the problems caused in surveys and census data, but the topic is actually much broader than that. Imputation is an increasingly popular method for handling data with missing values. When using imputation, analysts fill in missing values with random draws from an imputation model, and then fit the imputed data to an analysis model. In an ideal world, the imputation model would perfectly represent the distribution of the data. But such perfect fidelity can be very difficult to achieve, and in practice it is often unnecessary. All that is necessary is that the imputation model preserves those aspects of the distribution that are relevant to the analysis model. The point of imputation is not that the imputed values should look like observed values. The point is that the imputed variable should act like the observed variable when used in analysis. Researchers often impute continuous variables under an assumption of normality, yet many incomplete variables are skewed. It was found that imputing skewed variables under a normal model can lead to bias |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Handling missing data |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | LOCF |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Skewed distributions |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ahmed Amin Elsheikh , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Naglaa Abdelmoneim Morad , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Aml |
| Reviser | Cataloger |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.18.04.M.Sc.2015.Mo.H | 01010110068819000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.18.04.M.Sc.2015.Mo.H | 01020110068819000 | 22.09.2023 | CD - Rom | 68819.CD |