Sebastian Schultheiß

Sebastian Schultheiß
Hochschule für Angewandte Wissenschaften Hamburg | HAW

Master of Arts
Research assistant

About

20
Publications
4,060
Reads
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82
Citations
Introduction
Sebastian is a research assistant and lecturer at the Hamburg University of Applied Sciences, Germany. He focuses on qualitative and quantitative user studies, such as laboratory studies and online surveys. Currently he is engaged in a research project on the role of search engine optimization on the results of search engines.
Additional affiliations
May 2019 - present
Hochschule für Angewandte Wissenschaften Hamburg
Position
  • Research Assistant
Education
September 2016 - March 2019
Hochschule für Angewandte Wissenschaften Hamburg
Field of study
  • Information, Media, Library
September 2013 - August 2016
Hochschule für Angewandte Wissenschaften Hamburg
Field of study
  • Library and Information Management

Publications

Publications (20)
Article
Full-text available
The purpose of this study is to replicate a study from 2007, which found that student users trust in Google’s ability to rank results more than in their own relevance judgements. In a between-subjects experiment using eye-tracking methodology, participants (n=25) worked on search tasks where the results ranking on search engine results pages had be...
Article
Full-text available
According to recent studies, search engine users have little knowledge of Google's business model. In addition, users cannot sufficiently distinguish organic results from advertisements, resulting in result selections under false assumptions. Following on from that, this study examines how users' understanding of search‐based advertising influences...
Article
Purpose In commercial web search engine results rankings, four stakeholder groups are involved: search engine providers, users, content providers and search engine optimizers. Search engine optimization (SEO) is a multi-billion-dollar industry and responsible for making content visible through search engines. Despite this importance, little is know...
Article
Full-text available
People have a high level of trust in search engines, especially Google, but only limited knowledge of them, as numerous studies have shown. This leads to the question: To what extent is this trust justified considering the lack of familiarity among users with how search engines work and the business models they are founded on? We assume that trust...
Preprint
Full-text available
This research focuses on what users know about search engine optimization (SEO) and how well they can identify results that have potentially been influenced by SEO. We conducted an online survey with a sample representative of the German online population (N = 2,012). We found that 43% of users assume a better ranking can be achieved without paying...
Article
To gain a better understanding of user knowledge and perspectives of search engines, a fruitful approach are representative online surveys. In 2020, we conducted an online survey with a sample representative of the German online population aged 16 through 69 (N = 2,012). The online survey included 12 search engine-related sections. The questions co...
Article
We present an overview of the work of the Search Studies research group, focusing on commercial search engines from a user perspective. This encompasses studying what users of these search engines get to see on the result pages, how users interact with search engines, and the effect both have on knowledge acquisition in society. Our research combin...
Preprint
Full-text available
People have a high level of trust in search engines, especially Google, but only limited knowledge of them, as numerous studies have shown. This leads to the question: To what extent is this trust justified considering the lack of familiarity among users with how search engines work and the business models they are founded on? We assume that trust...
Article
A better understanding of users' search interactions in library search systems is key to improving the result ranking. By focusing on known-item searches (searches for an item already known) and search tactics, vast improvement can be made. To better understand user behaviour, we conducted four transaction-log studies, comprising more than 4.2 mill...
Article
Full-text available
The purpose of this paper is (1) to show which topics are especially fruitful for researchers interested in user behavior in commercial search engines, (2) to help researchers decide which data to collect and to what extent. We classify potential areas for IIR research along two dimensions, namely the type of interaction data used (small-scale or l...
Thesis
Full-text available
Repräsentative Untersuchungen ergaben, dass Suchmaschinennutzer zum Großteil weder das von Werbung bestimmte Geschäftsmodell Googles kennen noch bezahlte von organischen Ergebnissen unterscheiden können. Daran knüpft die vorliegende Masterarbeit an und untersucht, welchen Einfluss der Kenntnisstand über Suchmaschinenwerbung auf das Rechercheverhalt...
Research Proposal
Full-text available
Discovery-Systeme sind Bibliothekskataloge, die auf Suchmaschinentechnologie basieren. Zielsetzung der vorliegenden Forschungsarbeit ist eine Nutzungsevaluation von beluga, dem Discovery-System der Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky. Dazu wurden die Fragen gestellt, wie die NutzerInnen in ihren Recherchen vorgehen, welche...
Article
http://www.b-i-t-online.de/heft/2018-01/fachbeitrag-suenkler.pdf Sprachsteuerungssysteme, die den Nutzer auf Zuruf unterstützen, werden im Zuge der Verbreitung von Smartphones und Lautsprechersystemen wie Amazon Echo oder Google Home zunehmend populär. Eine der zentralen Anwendungen dabei stellt die Suche in Websuchmaschinen dar. Wie aber funktion...
Article
Volltext: https://opus4.kobv.de/opus4-bib-info/files/14269/BuB_2017_11_633.pdf
Article
Zusammenfassung Anleitungen zu verschiedensten Themen, sogenannte Tutorials, erleben seit einiger Zeit einen regelrechten Boom im Web. Immer mehr Angebote werden online gestellt; entsprechend steigt auch der Bedarf an geeigneten Plattformen und Suchinstrumenten, um diese Vielzahl für den Nutzer zu bündeln und durchsuchbar zu machen. Der Beitrag näh...
Conference Paper
Full-text available
Beschrieben wird ein studentisches Projekt, das im Auftrag eines Telekommunikationsunternehmens die sprachgesteuerte Websuche vier verschiedener Systeme evaluierte und aus den Erkenntnissen Empfehlungen für die Gestaltung einer optimalen Voice Web Search ableitete. Der Beitrag versucht, die unterschiedlichen Perspektiven und Erwartungen von Auftrag...
Thesis
Full-text available
Diese Bachelorarbeit geht der Frage nach, ob Suchmaschinennutzer der durch Google vorgegebenen Trefferreihenfolge mehr vertrauen als ihren eigenen Relevanzurteilen. Dafür wurde eine Studie aus dem Jahr 2007 repliziert. Kernbestandteil beider Arbeiten ist ein Eye-Tracking-Experiment. Dabei wurden den Probanden ohne deren Kenntnis Google-Ergebnisseit...

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Projects

Projects (4)
Project
The overall goal of the project is to describe and explain the role of search engine optimization from the perspective of the participating stakeholder groups by analysing search results/search result pages for optimized content as well as quantitative and qualitative surveys of search engine users, search engine optimizers and content providers. Thus the external influence on the results of commercial search engines can be described and quantified for the first time. The project contributes to theory building in information science by extending existing information-seeking models by a component of external influence on the search results. The project focuses on informative content; it examines how documents that play a role in answering information-oriented search queries can be influenced externally. This sets the project apart from pure questions of online marketing, where the focus is on the optimization itself and not on the consequences for the compilation of result sets. To measure the effect of search engine optimization, a software will be developed that can automatically query search engines and analyze the returned results. The results of the search result analyses carried out using it are combined with findings from the survey and further investigations of search engine users, search engine optimisers and content providers in order to obtain a comprehensive picture of the influence of search engine optimisation. Methodologically, the project is characterized by a triangulation of methods of data analysis from computer science and social science methods. The interdisciplinary basis of the analysis is unique and will significantly advance the understanding of search engines in general and the influence search engine optimization has in particular. With search engine optimization, the project addresses a highly relevant topic for information seeking in society, which to a considerable extent takes place via commercial search engines. The expected empirical and theoretical results contribute to a better understanding of information seeking in the context of modern web infrastructures. At the level of transfer into practice, the results will be relevant to issues like consumer protection.
Archived project
Die Praxis der Relevanzbeurteilung von Google-Nutzern auf dem Prüfstand: eine Eye-Tracking-Studie / We still trust in Google, but less than 10 years ago: an eye-tracking study
Archived project
Der Einfluss des Verständnisses von Suchmaschinenwerbung auf das Rechercheverhalten am PC und am mobilen Endgerät: eine Nutzerstudie