Johan Aberg | Linköping University (original) (raw)

Papers by Johan Aberg

Abstract The introductory course on human-computer interaction (HCI) and usable systems, taught e... more Abstract The introductory course on human-computer interaction (HCI) and usable systems, taught early for the computer science and computer engineering education programs, has suffered from bad course evaluations. To investigate the students' beliefs and values in relation to the subject matter and the course, focus groups were used. The results indicate challenges with a lack of maturity and motivation among the students and that they wrongly perceive the subject matter as trivial.

Abstract Service design is said to be a holistic design approach. This is evident in most service... more Abstract Service design is said to be a holistic design approach. This is evident in most service design literature and textbooks but still services are prototyped by focusing on separate parts rather than whole service journeys. In this paper we propose a technique called service walkthrough that can be used to represent whole services. We explore what information can be generated using the technique and how useful it is.

• Dropbox-liknande klient för att synkronisera filer mellan molnplattform & vanlig dator–Teknik: ... more • Dropbox-liknande klient för att synkronisera filer mellan molnplattform & vanlig dator–Teknik: OpenSSH, C++• Demonstrator för nytt spelkoncept (betting)–Teknik: väljas i samråd med kund (t. ex. Android, iPhone el. webb)• Digitalt arbetsbord med mobil slavdisplay för intensivvården–Teknik: C#, Android (Java/Ajax/HTML?), MS Win7 (Multitouch Lib)• OpenAss–Assistering över IP (fråge-svarslösning)–Teknik: Webb, Android…

This report contains a risk analysis study [2] performed in a small knowledge-based information t... more This report contains a risk analysis study [2] performed in a small knowledge-based information technology (IT) service company. We will call the company XX. The study was done over a very short period of time and consists of an interview with two persons involved with the security of the computers at the company.

Abstract This thesis addresses a natural language processing problem posed in the context of so-c... more Abstract This thesis addresses a natural language processing problem posed in the context of so-called Web assistant systems aka live help systems. A recent feature added to a growing number of Web sites, such systems o er user support via text chat with human assistants. To adapt consultation to the individual user, long-term information about his or her skills and interests is collected in a user model. So far, this updating of user models has been a task performed manually by the assistants.

Abstract: We suggest a physical interpretation of the Uhlmann amplitude of a density operator. Gi... more Abstract: We suggest a physical interpretation of the Uhlmann amplitude of a density operator. Given this interpretation we propose an operational approach to obtain the Uhlmann condition for parallelity. This allows us to realize parallel transport along a sequence of density operators by an iterative preparation procedure. At the final step the resulting Uhlmann holonomy can be determined via interferometric measurements.

Internet research, Jan 1, 2000

Proceedings of the SIGCHI conference on …, Jan 1, 2001

Knowledge Discovery in …, Jan 1, 2006

Human factors and Web development, Jan 1, 2003

15 Live Help Systems Johan Aberg Nahid Shahmehri Linköpings Universitet, Sweden An important chal... more 15 Live Help Systems Johan Aberg Nahid Shahmehri Linköpings Universitet, Sweden An important challenge for universal usability is to bridge the gap between what users know and what they need to know to successfully interact with a computer system (Shneiderman, 2000). ...

Proceedings of the 7th …, Jan 1, 2005

... Dennis Maciuszek Linköpings universitet Dept. of Computer &amp;amp;amp; Inform. Scien... more ... Dennis Maciuszek Linköpings universitet Dept. of Computer &amp;amp;amp; Inform. Science 581 83 Linköping, Sweden +46 13 28 2695 denma@ida.liu.se Johan Aberg Linköpings universitet Dept. of Computer &amp;amp;amp; Inform. Science 581 83 Linköping, Sweden +46 13 28 1465 johab@ida.liu.se ...

… Information Systems, 1997. …, Jan 1, 1997

Abstract The lack of organization of the information on the web results in non-eficient informati... more Abstract The lack of organization of the information on the web results in non-eficient information retrieval. Sev-eral approaches for improvement have been suggested. We propose to use a document knowledge base that contains semantic and structural informa tion concern- ...

SwePub titelinformation: Live help systems : an approach to intelligent help for Web information ... more SwePub titelinformation: Live help systems : an approach to intelligent help for Web information systems.