| 1. |
- Espinoza, Fredrik, et al.
(författare)
-
Analysis of Open Answers to Survey Questions throughInteractive Clustering and Theme Extraction
- 2018
-
Ingår i: Proceedings of Conference on Human Information Interaction & Retrieval. - New York, New York, USA : ACM Digital Library. ; , s. 317-320
-
Konferensbidrag (refereegranskat)abstract
- This paper describes design principles for and the implementation of Gavagai Explorer—a new application which builds on interactive text clustering to extract themes from topically coherent text sets such as open text answers to surveys or questionnaires.An automated system is quick, consistent, and has full coverage over the study material. A system allows an analyst to analyze more answers in a given time period; provides the same initial results regardless of who does the analysis, reducing the risks of inter-rater discrepancy; and does not risk miss responses due to fatigue or boredom. These factors reduce the cost and increase the reliability of the service. The most important feature, however, is relieving the human analyst from the frustrating aspects of the coding task, freeing the effort to the central challenge of understanding themes. Gavagai Explorer is available on-line at http://explorer.gavagai.se
|
|
| 2. |
- Espinoza, Fredrik, et al.
(författare)
-
Intrusiveness management for focused, efficient, and enjoyable activities
- 2007
-
Ingår i: The Disappearing Computer. - Berlin / Heidelberg : Springer. - 9783540727255 ; , s. 143-157
-
Bokkapitel (refereegranskat)abstract
- When technologies for distributed activities develop, in particular the rapidly developing mobile technology, a larger part of our time will be spent connected to our various distributed contexts. When we meet physically we bring technology, both artifacts and services, which enable us to participate in these non-local contexts. Potentially this is a threat to focused and efficient activities due to the intrusiveness of the technology. Our aim is to contribute to the restoration of a number of the desirable properties of traditional local technology-free contexts. The intrusiveness itself is caused by at least four typical phenomena that have influenced current technology: • Focus-demanding and clearly distinguishable artifacts like phones or PCs explicitly mediate interaction with the distributed context • The functionality of services is traditionally based upon the assumption that communication is a deterministic flow of passive information, which for example, does not include information of the participants´ current context • Services in general perform individually and without coordinated communication schemes • The switches between contexts introduce a high cognitive load as each distributed context typically has its own system of characteristic objects and rules. In the FEEL project, we have developed a system called “Focused, Efficient and Enjoyable Local Activities with Intrusiveness Management” (FEELIM) that constitutes an intermediate alternative between the technology-dense and technology-free environments, which addresses the problems cited above. This research is based on a collaborative and cooperative setting where problems of intrusiveness management are confounded by several users meeting and cooperating together as opposed to isolated users dealing with similar problems of interruption management (Chen 2004; Ho 2005).
|
|
| 3. |
- Espinoza, Fredrik, et al.
(författare)
-
ServiceDesigner: a tool to help end-users become individual service providers
- 2003. - 1
-
Konferensbidrag (refereegranskat)abstract
- Pervasive and ubiquitous computing will fundamentally change the mode of interaction between humans and computers;instead of working with applications on a desktop computer we will interact with our environment through electronic services-anytime and anywhere. In this new modus operandi, specialized and personalized services will become much more important; the usual software house solutions may not be sufficient for individual demands.We propose that end-users themselves can be the service providers; the incentive to create services is grounded in each individuals personal demand for well suited services and this demand will only increase when technology makes it possible to access services ubiquitously. Individual Service Provisioning requires three parts: a general platform for managing and accessing electronic services; simple but powerful tools to create the services; and the means to share services between users. Building on previous work developing sView, a personal service environment, this paper presents the second part - ServiceDesigner - a tool for creating new services for sView. ServiceDesigner, using webservices that expose the functions of web sites as programmatically accessible components, lets end-users create personalized and functional electronic services that fit in the personal platform. With ServiceDesigner, web services are directly available to users and finished services can also be shared with other users.
|
|
| 4. |
- Karlgren, Jussi, et al.
(författare)
-
Profiling Reputation of Corporate Entities in Semantic Space : Notebook for RepLab at CLEF 2012
- 2012
-
Ingår i: CLEF 2012 Evaluation Labs and Workshop Online Working Notes.
-
Konferensbidrag (refereegranskat)abstract
- Gavagai used its first-generation baseline system for the profiling taskfor evaluation campaign for online reputation management systems of CLEF2012. The system builds on large scale analysis of streaming text and performedexcellently on this task with standard settings.
|
|
| 5. |
- Karlgren, Jussi, et al.
(författare)
-
Usefulness of Sentiment Analysis
- 2012
-
Ingår i: ECIR 2012, 34th European Conference on Information Retrieval. - Berlin, Heidelberg : Springer Berlin/Heidelberg. ; , s. 426-435
-
Konferensbidrag (refereegranskat)abstract
- What can text sentiment analysis technology be used for,and does a more usage-informed view on sentiment analysis pose newrequirements on technology development?
|
|
| 6. |
- Olsson, Fredrik, et al.
(författare)
-
Technical Requirements For Knowledge Representation For Attitude Mining On A Realistic Scale
- 2012
-
Ingår i: Proceedings of the Workshop on Reputation Management in Social Media at LREC’12.
-
Konferensbidrag (refereegranskat)abstract
- To be useful, a reputation mining system must cover a broad range of weakly, vaguely, and implicitly expressed human sentiments andcannot in the absence of prior knowledge rely on sampling the data stream of human-generated text. To achieve coverage, a reputationmining system must be sensitive to variation and change in the signal. These requirements pose a challenge which are an instance ofmore general semantic processing – this paper presents some design requirements used to design and implement a semantic layer for aprocessing stack for human-generated information.
|
|
| 7. |
- Sahlgren, Magnus, et al.
(författare)
-
The Gavagai Living Lexicon
- 2016
-
Ingår i: 10th edition of the Language Resources and Evaluation Conference, 23-28 May 2016, Portorož (Slovenia). - : ELRA.
-
Konferensbidrag (refereegranskat)abstract
- This paper presents the Gavagai Living Lexicon, which is an online distributional semantic model currently available in 14 different languages. We describe the underlying distributional semantic model, and how we have solved some of the challenges in applying such a model to large amounts of streaming data. We also describe the architecture of our implementation, and discuss how we deal with continuous quality assurance of the lexicon.
|
|
