Blar i NTNU Open på forfatter "Ahlers, Dirk"
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Energy Citizenship in Positive Energy Districts – Towards a transdisciplinary approach to impact assessment
Van Wees, Mark; Pineda Revilla, Beatriz; Fitzgerald, Helena; Ahlers, Dirk; Romero, Natalia; Alpagut, Beril; Kort, Joke; Tjahja, Cyril; Kaiser, Gabi; Blessing, Viktoria; Patricio, Lia; Smit, Sander (Peer reviewed; Journal article, 2022)It is commonly assumed by the projects demonstrating concepts for positive energy districts in cities across Europe that citizens want and need to be involved in the development of these concepts as an essential condition ... -
Everything is Filed under 'File' — Conceptual Challenges in Applying Semantic Search to Network Shares for Collaborative Work
Ahlers, Dirk; Mehrpoor, Mahsa (Chapter, 2015) -
Expanding the utility of geospatial knowledge bases by linking concepts to WikiText and to polygonal boundaries
Martins, Bruno; López-Pellicer, Francisco J.; Ahlers, Dirk (Chapter, 2015)This vision paper argues that a geospatial knowledge base combining textual descriptions for concepts such as places, together with place types, semantic relations between concepts and, most importantly, polygonal geometries ... -
F2c2C-DM: A Fog-to-cloudlet-to-Cloud Data Management Architecture in Smart City
Sinaeepourfard, Amir; Krogstie, John; Petersen, Sobah Abbas; Ahlers, Dirk (Chapter, 2019)Smart city solutions make a high-level technological innovation in a city to expand their citizens' quality of life by several different technological management strategies (such as resource management and data management) ... -
The Governance Approach of Smart City Initiatives. Evidence from Trondheim, Bergen, and Bodø
Gohari, Savis; Ahlers, Dirk; Nielsen, Brita Fladvad; Junker, Eivind (Journal article, 2020)A pragmatic and polity-focused solution for governing a smart city in the direction of sustainability is still missing in theory and practice. A debate about whether a smart city is a pragmatic solution for modern challenges ... -
Granularity as a qualitative concept for GIR
Ahlers, Dirk (Chapter, 2015)We examine the notion of granularity for qualitative thinking about geospatial data and location references. Granularity can be understood as an abstraction of level of detail or spatial resolution. Pure coordinates, which ... -
Harnessing Mobility Data in Cities: A Case Study from the Bergen Region
Ahlers, Dirk; Akerkar, Rajendra Arvind; Krogstie, John; Opdahl, Andreas Lothe; Tessem, Bjørnar; Zhang, Weiqing (Journal article; Peer reviewed, 2018)Smart cities attempt to use big data, machine learning, and other topical information and communication techniques (ICTs) to improve energy-consumption, mobility, waste management, and other crucial city functions. Many ... -
How to PED – The +CityxChange Cookbook: Experiences and Guidelines on Positive Energy Districts
Wyckmans, Annemie Bertha Marcella; Junqueira de Andrade, Elisa; Berthelsen, Bjørn Ove; Livik, Klaus; Reeves, Kieran; Prokýšek, Miloš; Drambarean, Tudor; Meeliste, Siim; Petkova, Eftima; Spasova, Borislava; Bäcker, Andy; Fitzgerald, Helena; Smit, Sander; Skoglund, Tor Rune; Brennan, Gary; Guldbrandsøy, Erik Næss; Rørvik, Ella-Lovise Hammervold; Rostad, Mette; Kvaal, Bernhard (Research report, 2023)This “How to PED’’ cookbook contains experiences, lessons learned, and recommendations gained throughout the 5 years of the +CityxChange EU Horizon 2020 project, specifically focused on the variety of activities necessary ... -
Interactive Exploration of Geographic Regions with Web-based Keyword Distributions
Ahlers, Dirk; Kumar, Chandan (Peer reviewed; Journal article, 2013)The most common and visible use of geographic information retrieval (GIR) today is the search for specific points of interest that serve an information need for places to visit. However, in some planning and decision making ... -
Investigating contextual ontologies and document corpus characteristics for information access in engineering settings
Mehrpoor, Mahsa; Ahlers, Dirk; Gulla, Jon Atle; Kristensen, Kjetil; Sivertsen, Ole Ivar (Journal article; Peer reviewed, 2017)Knowledge and information are valuable resources in enterprises for solution reuse. However, identifying relevant information from a rapidly growing number of unstructured resources is challenging for users. We discuss a ... -
Linkage Quality Analysis of GeoNames in the Semantic Web
Ahlers, Dirk (Chapter, 2017)We examine the GeoNames gazetteer as a hub of Linked Geospatial Data. We survey quality and linkage characteristics to understand how well it supports the traversal of the Semantic Web and which limitations exist. We examine ... -
LocWeb2022: 12th International Workshop on Location and the Web
Ahlers, Dirk; Wilde, Erik (Chapter, 2022)The LocWeb2022 workshop at The Web Conference 2022 will run for the 12th time with evolving topics around location-aware information access, Web architecture, spatial social computing, and social good. It is designed as a ... -
Making Sense of the Urban Future: Recommendation Systems in Smart Cities
Ahlers, Dirk (Peer reviewed; Journal article, 2020)A large variety of Recommender Systems today can help users to understand and make sense of certain aspects of their cities, for example events, restaurants, government services, or transport.With the rise of the Smart ... -
Mining Twitter Features for Event Summarization and Rating
Mallela, Deepa; Ahlers, Dirk; Pera, Maria Soledad (Chapter, 2017)We present CEST, a generic method for detection and rich summarization of events occurring in a city. CEST exploits Twitter metadata, does not need prior information on events, and is event category and structure agnostic. ... -
Modelling pervasive platforms and digital services for smart urban transformation using an enterprise architecture framework
Bokolo, Anthony Junior; Petersen, Sobah Abbas; Helfert, Markus; Ahlers, Dirk; Krogstie, John (Peer reviewed; Journal article, 2021)Purpose In smart cities pervasive systems are deployed by enterprises and stakeholders in municipalities to provide digital services to citizens. But cities are faced with the challenge of achieving system pluggability, ... -
MONITORING INNOVATION DISTRICTS THROUGH THE LENS OF URBAN SUSTAINABILITY
Nanaiah, Bhuvana (Master thesis, 2023)I 2018 foreslo Oslo opprettelsen av tre "Innovasjonsdistrikter" - Oslo Science City, Hovinbyen Sirkulære Oslo og Punkt Oslo - for å diversifisere sin lokale økonomi gjennom kunnskapsbaserte strategier for byplanlegging. ... -
Multi-source entity-based conflation for local search
Ahlers, Dirk (Peer reviewed; Journal article, 2012)Local search is a well-established mode of Web search engines today. For most developed countries, a huge amount of data is directly available on the Web and can be extracted and processed by search engines. In many ... -
Poisson Factorization Models for Spatiotemporal Retrieval
de Souza da Silva, Eliezer; Ahlers, Dirk (Chapter, 2017)New retrieval models promise deeper integration of multiple features and sources of information. The inclusion of thematic and location features in a joint factorization model allows location to be modeled as a first-class ... -
Searching in the Smart City? — An Information Access Challenge
Ahlers, Dirk (Peer reviewed; Journal article, 2021)How can users use search to make sense of Smart City offers? On the one hand, of course much information is available on the Web and is supposedly easily accessible to search. On the other hand, Smart Cities aim for ... -
The Sense and Non-Sense of PEDs — Feeding Back Practical Experiences of Positive Energy District Demonstrators into the European PED Framework Definition Development Process
Vandevyvere, Han Hendrik B.; Ahlers, Dirk; Wyckmans, Annemie (Peer reviewed; Journal article, 2022)This article discusses early developments of the Positive Energy District (PED) concept, both in terms of its definition and of its implementation in real world demonstrators. Based on the specific challenges for creating ...