What did you see? A study to measure personalization in Google’s search engine

Abstract In this paper we present the results of the project “#Datenspende” where during the German election in 2017 more than 4000 people contributed their search results regarding keywords connected to the German election campaign. Analyzing the donated result lists we prove, that the room for per...

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Main Authors: Tobias D. Krafft, Michael Gamer, Katharina A. Zweig
Format: Article
Language:English
Published: SpringerOpen 2019-12-01
Series:EPJ Data Science
Subjects:
Online Access:https://doi.org/10.1140/epjds/s13688-019-0217-5
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author Tobias D. Krafft
Michael Gamer
Katharina A. Zweig
author_facet Tobias D. Krafft
Michael Gamer
Katharina A. Zweig
author_sort Tobias D. Krafft
collection DOAJ
description Abstract In this paper we present the results of the project “#Datenspende” where during the German election in 2017 more than 4000 people contributed their search results regarding keywords connected to the German election campaign. Analyzing the donated result lists we prove, that the room for personalization of the search results is very small. Thus the opportunity for the effect mentioned in Eli Pariser’s filter bubble theory to occur in this data is also very small, to a degree that it is negligible. We achieved these results by applying various similarity measures to the result lists that were donated. The first approach using the number of common results as a similarity measure showed that the space for personalization is less than two results out of ten on average when searching for persons and at most four regarding the search for parties. Application of other, more specific measures show that the space is indeed smaller, so that the presence of filter bubbles is not evident. Moreover this project is also a proof of concept, as it enables society to permanently monitor a search engine’s degree of personalization for any desired search terms. The general design can also be transferred to intermediaries, if appropriate APIs restrict selective access to contents relevant to the study in order to establish a similar degree of trustworthiness.
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spelling doaj.art-d21b8f1ee0954099824cf062cbb800a52022-12-21T18:53:16ZengSpringerOpenEPJ Data Science2193-11272019-12-018112310.1140/epjds/s13688-019-0217-5What did you see? A study to measure personalization in Google’s search engineTobias D. Krafft0Michael Gamer1Katharina A. Zweig2Algorithm Accountability Lab, Department of Computer Science, Technische Universität KaiserslauternAlgorithm Accountability Lab, Department of Computer Science, Technische Universität KaiserslauternAlgorithm Accountability Lab, Department of Computer Science, Technische Universität KaiserslauternAbstract In this paper we present the results of the project “#Datenspende” where during the German election in 2017 more than 4000 people contributed their search results regarding keywords connected to the German election campaign. Analyzing the donated result lists we prove, that the room for personalization of the search results is very small. Thus the opportunity for the effect mentioned in Eli Pariser’s filter bubble theory to occur in this data is also very small, to a degree that it is negligible. We achieved these results by applying various similarity measures to the result lists that were donated. The first approach using the number of common results as a similarity measure showed that the space for personalization is less than two results out of ten on average when searching for persons and at most four regarding the search for parties. Application of other, more specific measures show that the space is indeed smaller, so that the presence of filter bubbles is not evident. Moreover this project is also a proof of concept, as it enables society to permanently monitor a search engine’s degree of personalization for any desired search terms. The general design can also be transferred to intermediaries, if appropriate APIs restrict selective access to contents relevant to the study in order to establish a similar degree of trustworthiness.https://doi.org/10.1140/epjds/s13688-019-0217-5Filter bubbleBlack boxPersonalizationData donationSearch engineGoogle
spellingShingle Tobias D. Krafft
Michael Gamer
Katharina A. Zweig
What did you see? A study to measure personalization in Google’s search engine
EPJ Data Science
Filter bubble
Black box
Personalization
Data donation
Search engine
Google
title What did you see? A study to measure personalization in Google’s search engine
title_full What did you see? A study to measure personalization in Google’s search engine
title_fullStr What did you see? A study to measure personalization in Google’s search engine
title_full_unstemmed What did you see? A study to measure personalization in Google’s search engine
title_short What did you see? A study to measure personalization in Google’s search engine
title_sort what did you see a study to measure personalization in google s search engine
topic Filter bubble
Black box
Personalization
Data donation
Search engine
Google
url https://doi.org/10.1140/epjds/s13688-019-0217-5
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