“Scrambling” geo-referenced data to protect privacy induces bias in distance estimation
Privacy concerns regarding the sharing of spatially referenced household data have induced researchers and survey agencies to “scramble” geographic information by adding random spatial errors to true location coordinates. In this paper, we prove mathematically that the addition of random noise leads...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
3 February 2015
|
| In: |
Population and environment
Year: 2015, Volume: 37, Issue: 1, Pages: 83-98 |
| ISSN: | 1573-7810 |
| DOI: | 10.1007/s11111-014-0225-0 |
| Online Access: | Verlag, kostenfrei registrierungspflichtig, Volltext: http://dx.doi.org/10.1007/s11111-014-0225-0 Verlag, kostenfrei registrierungspflichtig, Volltext: https://link.springer.com/article/10.1007/s11111-014-0225-0 
|
| Author Notes: | Noam Elkies, Günther Fink, Till Bärnighausen |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1559063459 | ||
| 003 | DE-627 | ||
| 005 | 20220813175748.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 170529s2015 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1007/s11111-014-0225-0 |2 doi | |
| 035 | |a (DE-627)1559063459 | ||
| 035 | |a (DE-576)489063454 | ||
| 035 | |a (DE-599)BSZ489063454 | ||
| 035 | |a (OCoLC)1340975582 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 33 |2 sdnb | ||
| 100 | 1 | |a Elkies, Noam D. |e VerfasserIn |4 aut | |
| 245 | 1 | 0 | |a “Scrambling” geo-referenced data to protect privacy induces bias in distance estimation |c Noam Elkies, Günther Fink, Till Bärnighausen |
| 264 | 1 | |c 3 February 2015 | |
| 300 | |a 16 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 29.05.2017 | ||
| 520 | |a Privacy concerns regarding the sharing of spatially referenced household data have induced researchers and survey agencies to “scramble” geographic information by adding random spatial errors to true location coordinates. In this paper, we prove mathematically that the addition of random noise leads to a systematic overestimation of distances between households and access points of interest. We illustrate this average distance bias as well as the attenuation bias generated by random spatial errors using data on household and health facility location from a Health and Demographic Surveillance Site in rural South Africa. Given the large overall biases observed, we argue that the use of scrambled spatial data for policy making or empirical work is generally not advisable, and that alternative methods of protecting data confidentiality should be used to ensure the usability of spatial data for quantitative analysis. | ||
| 700 | 1 | |a Fink, Guenther |e VerfasserIn |0 (DE-588)133775402 |0 (DE-627)556367995 |0 (DE-576)300092113 |4 aut | |
| 700 | 1 | |a Bärnighausen, Till |d 1969- |e VerfasserIn |0 (DE-588)120262029 |0 (DE-627)080560512 |0 (DE-576)178470848 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Population and environment |d Dordrecht [u.a.] : Springer Science + Business Media B.V., 1980 |g 37(2015), 1, Seite 83-98 |h Online-Ressource |w (DE-627)320588785 |w (DE-600)2018639-3 |w (DE-576)121191788 |x 1573-7810 |7 nnas |a “Scrambling” geo-referenced data to protect privacy induces bias in distance estimation |
| 773 | 1 | 8 | |g volume:37 |g year:2015 |g number:1 |g pages:83-98 |g extent:16 |a “Scrambling” geo-referenced data to protect privacy induces bias in distance estimation |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1007/s11111-014-0225-0 |x Verlag |x Resolving-System |z kostenfrei registrierungspflichtig |3 Volltext |
| 856 | 4 | 0 | |u https://link.springer.com/article/10.1007/s11111-014-0225-0 |x Verlag |z kostenfrei registrierungspflichtig |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20170529 | ||
| 993 | |a Article | ||
| 994 | |a 2015 | ||
| 998 | |g 120262029 |a Bärnighausen, Till |m 120262029:Bärnighausen, Till |p 3 |y j | ||
| 999 | |a KXP-PPN1559063459 |e 2970373076 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"origin":[{"dateIssuedKey":"2015","dateIssuedDisp":"3 February 2015"}],"language":["eng"],"title":[{"title":"“Scrambling” geo-referenced data to protect privacy induces bias in distance estimation","title_sort":"“Scrambling” geo-referenced data to protect privacy induces bias in distance estimation"}],"recId":"1559063459","relHost":[{"physDesc":[{"extent":"Online-Ressource"}],"origin":[{"dateIssuedKey":"1980","publisherPlace":"Dordrecht [u.a.] ; Dordrecht [u.a.]","publisher":"Springer Science + Business Media B.V. ; Kluwer","dateIssuedDisp":"1980-"}],"pubHistory":["3.1980 -"],"language":["eng"],"note":["Gesehen am 28.01.22"],"title":[{"title_sort":"Population and environment","subtitle":"a journal of interdisciplinary studies","title":"Population and environment"}],"disp":"“Scrambling” geo-referenced data to protect privacy induces bias in distance estimationPopulation and environment","part":{"pages":"83-98","year":"2015","extent":"16","text":"37(2015), 1, Seite 83-98","issue":"1","volume":"37"},"recId":"320588785","id":{"eki":["320588785"],"issn":["1573-7810"],"zdb":["2018639-3"]},"type":{"media":"Online-Ressource","bibl":"periodical"}}],"person":[{"given":"Noam D.","family":"Elkies","display":"Elkies, Noam D.","roleDisplay":"VerfasserIn","role":"aut"},{"given":"Guenther","family":"Fink","display":"Fink, Guenther","roleDisplay":"VerfasserIn","role":"aut"},{"roleDisplay":"VerfasserIn","role":"aut","family":"Bärnighausen","given":"Till","display":"Bärnighausen, Till"}],"name":{"displayForm":["Noam Elkies, Günther Fink, Till Bärnighausen"]},"type":{"media":"Online-Ressource","bibl":"article-journal"},"physDesc":[{"extent":"16 S."}],"note":["Gesehen am 29.05.2017"],"id":{"doi":["10.1007/s11111-014-0225-0"],"eki":["1559063459"]}} | ||
| SRT | |a ELKIESNOAMSCRAMBLING3201 | ||