Robert Keller
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View article: Are we there yet? Analyzing the role of access distance in carsharing in small urban areas
Are we there yet? Analyzing the role of access distance in carsharing in small urban areas Open
Carsharing is a valuable concept of the sharing economy to address today's mobility challenges such as traffic congestion, noise pollution, and CO2 emissions. Therefore, carsharing is increasingly expanded beyond metropolitan areas. Howeve…
View article: Empowering sustainable hotels: a guest-centric optimization for vehicle-to-building integration
Empowering sustainable hotels: a guest-centric optimization for vehicle-to-building integration Open
In light of global warming, hotels account for one of the highest energy demands within the building sector, offering great decarbonization potential. As electrification increases, so does the demand for electric vehicles (EVs) charging st…
View article: Citizens' preferences on smart energy technologies and services for smart districts
Citizens' preferences on smart energy technologies and services for smart districts Open
The design of sustainable urban environments is one of the most pressing endeavors. Particularly the emergence of digital technologies has triggered a range of technocentric movements for urban development, such as smart cities or district…
View article: Understanding information needs for seamless intermodal transportation: Evidence from Germany
Understanding information needs for seamless intermodal transportation: Evidence from Germany Open
Cities worldwide are seeking to enhance their sustainable mobility by reducing individual motorized transportation. While intermodal mobility – combining multiple transportation modes in one journey – is a key solution, individuals encount…
View article: Generative mechanisms of AI implementation: A critical realist perspective on predictive maintenance
Generative mechanisms of AI implementation: A critical realist perspective on predictive maintenance Open
Artificial intelligence (AI) promises various new opportunities to create and appropriate business value. However, many organizations – especially those in more traditional industries – struggle to seize these opportunities. To unpack the …
View article: Fake it till you make it: Synthetic data for emerging carsharing programs
Fake it till you make it: Synthetic data for emerging carsharing programs Open
Carsharing is an integral part of the transformation toward flexible and sustainable mobility. New carsharing programs are entering the market to challenge large operators by offering innovative services. This study investigates the use of…
View article: Beyond Sensors: A Rule-Based Approach for Cost-Effective Visitor Guidance
Beyond Sensors: A Rule-Based Approach for Cost-Effective Visitor Guidance Open
Tourism is an important economic driver for numerous regions, attracting more than one billion visitors annually. While economically significant, excessive numbers of visitors lead to local overcrowding, which negatively impacts visitors’ …
View article: The Design of Citizen-Centric Green IS in Sustainable Smart Districts
The Design of Citizen-Centric Green IS in Sustainable Smart Districts Open
Green information systems are often praised for their potential to foster sustainability in citizens’ daily lives and meet their needs. With this focus on citizens, districts that use smart technologies provide a litmus test, the results o…
View article: Obstacles to demand response: Why industrial companies do not adapt their power consumption to volatile power generation
Obstacles to demand response: Why industrial companies do not adapt their power consumption to volatile power generation Open
Various flexibility options in power systems, such as storage, grid expansion, and demand flexibility, gain increasing importance to balance the intermittent power supply of renewables. On the demand side, especially the industrial sector …
View article: Revealing influences on carsharing users’ trip distance in small urban areas
Revealing influences on carsharing users’ trip distance in small urban areas Open
Carsharing is an essential part of the transformation towards sustainable mobility in smaller urban areas. To expand their services and the positive social and environmental benefits, carsharing operators must understand their users' trave…
View article: Pathways to Developing Digital Capabilities within Entrepreneurial Initiatives in Pre-Digital Organizations
Pathways to Developing Digital Capabilities within Entrepreneurial Initiatives in Pre-Digital Organizations Open
To enable new digital business models, pre-digital organizations launch entrepreneurial initiatives. However, in developing the required digital capabilities, pre-digital organizations often face challenges as they are marked by the ways t…
View article: AI-based Decision Support for Sustainable Operation of Electric Vehicle Charging Parks
AI-based Decision Support for Sustainable Operation of Electric Vehicle Charging Parks Open
The widespread adoption of electric vehicles makes investments in charging parks both immediate and necessary to lower range anxiety and allow longer trips. However, many charging park operators struggle with sustainable and profitable ope…
View article: Affordance-Experimentation-Actualization Theory in Artificial Intelligence Research : a Predictive Maintenance Story
Affordance-Experimentation-Actualization Theory in Artificial Intelligence Research : a Predictive Maintenance Story Open
Artificial intelligence currently counts among the most prominent digital technologies and promises to generate significant business value in the future. Despite a growing body of knowledge, research could further benefit from incorporatin…
View article: Harnessing the Full Potential of Industrial Demand-Side Flexibility: An End-to-End Approach Connecting Machines with Markets through Service-Oriented IT Platforms
Harnessing the Full Potential of Industrial Demand-Side Flexibility: An End-to-End Approach Connecting Machines with Markets through Service-Oriented IT Platforms Open
The growing share of renewable energy generation based on fluctuating wind and solar energy sources is increasingly challenging in terms of power grid stability. Industrial demand-side response presents a promising way to balance energy su…
View article: Decoupling, Information Technology, and the Tradeoff between Organizational Reliability and Organizational Agility
Decoupling, Information Technology, and the Tradeoff between Organizational Reliability and Organizational Agility Open
Information technology units within organizations pursue organizational reliability and agility goals. Both capabilities are imperatives for business success but there is an organizational tension arising in being agile and reliable at the…
View article: Cloud Networks as Platform-based Ecosystems : Detecting Management Implications for Actors in Cloud Networks
Cloud Networks as Platform-based Ecosystems : Detecting Management Implications for Actors in Cloud Networks Open
Platform-based ecosystems are omnipresent in today’s world. This doctoral thesis focuses on cloud computing, which is an emerging platform-based ecosystem that companies adopt in their IT strategy quickly. Actors in cloud computing often c…
View article: MindMusic: Brain-Controlled Musical Improvisation
MindMusic: Brain-Controlled Musical Improvisation Open
MindMusic explores a new form of creative expression through brain controlled musical improvisation. Using EEG technology and a musical improviser system, Impro-Visor (Keller, 2018), MindMusic engages users in musical improvisation session…
View article: Program Language Translation Using a Grammar-Driven Tree-to-Tree Model
Program Language Translation Using a Grammar-Driven Tree-to-Tree Model Open
The task of translating between programming languages differs from the challenge of translating natural languages in that programming languages are designed with a far more rigid set of structural and grammatical rules. Previous work has u…
View article: Flexible IT platform for synchronizing energy demands with volatile markets
Flexible IT platform for synchronizing energy demands with volatile markets Open
Abandoning fossil and nuclear energy sources in the long run and increasing amount of renewable energies in electricity production causes a more volatile power supply. Depending on external realities, renewable energy production emphasizes…