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1. Selección de ejemplos fundamentales de análisis de publicaciones cienciométricas - See more at: http://bid.ub.edu/es/32/ingwersen2.htm#sthash.sMqADZ8E.dpuf

Author

Ingwersen, Peter

Subjects
Scientometrics, Bibliography. Library science. Information resources, Communication. Mass media, P87-96
Abstract

Objetivos: detallar una selección de factores de importancia capital para calcular, presentar e interpretar los resultados de análisis de publicaciones desde una óptica cienciométrica, en particular con relación al análisis del crecimiento y de las cuotas mundiales, así como la lógica que hay detrás del cálculo de las medias de autores, instituciones o países por publicación indexados por Web of Science. -- Metodología: ejemplos de estudios sobre evaluación de investigación anteriores y también de casos basados en datos recogidos en línea para este artículo demuestran conflictos, detalles problemáticos, inconvenientes y cómo superarlos en el análisis de publicaciones con respecto a la aplicación, al cálculo, a la presentación y a la interpretación de herramientas analíticas. -- Resultados: proporciona una visión de la cienciometría en el contexto del análisis infométrico, casos seleccionados de productividad de investigación, patrones y tendencias de investigación de publicaciones en todas las disciplinas y en los campos de la energía renovable y la energía eólica en diferentes periodos de tiempo y mediante diferentes tipos de análisis y presentación.Objective: This paper selects and outlines factors of central importance in the calculation, presentation and interpretation of publication analysis results from a scientometric perspective. The paper focuses on growth, world share analyses and the logic behind the computation of average numbers of authors, institutions or countries per publication indexed by Web of Science. -- Methodology: The paper uses examples from earlier research evaluation studies and cases based on online data to describe issues, problematic details, pitfalls and how to overcome them in publication analysis with respect to analytic tool application, calculation, presentation and interpretation. -- Results: By means of different kinds of analysis and presentation, the paper provides insight into scientometrics in the context of informetric analysis, selected cases of research productivity, publication patterns and research trends in the fields of renewable energy and wind power during different periods of history.

Published
2014
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2. Selected critical examples of scientometric publication analysis

Author

Ingwersen, Peter

Subjects
Scientometrics, Bibliography. Library science. Information resources, Communication. Mass media, P87-96
Abstract

Objetivos: detallar una selección de factores de importancia capital para calcular, presentar e interpretar los resultados de análisis de publicaciones desde una óptica cienciométrica, en particular con relación al análisis del crecimiento y de las cuotas mundiales, así como la lógica que hay detrás del cálculo de las medias de autores, instituciones o países por publicación indexados por Web of Science. -- Metodología: ejemplos de estudios sobre evaluación de investigación anteriores y también de casos basados en datos recogidos en línea para este artículo demuestran conflictos, detalles problemáticos, inconvenientes y cómo superarlos en el análisis de publicaciones con respecto a la aplicación, al cálculo, a la presentación y a la interpretación de herramientas analíticas. -- Resultados: proporciona una visión de la cienciometría en el contexto del análisis infométrico, casos seleccionados de productividad de investigación, patrones y tendencias de investigación de publicaciones en todas las disciplinas y en los campos de la energía renovable y la energía eólica en diferentes periodos de tiempo y mediante diferentes tipos de análisis y presentación.Objective: This paper selects and outlines factors of central importance in the calculation, presentation and interpretation of publication analysis results from a scientometric perspective. The paper focuses on growth, world share analyses and the logic behind the computation of average numbers of authors, institutions or countries per publication indexed by Web of Science. -- Methodology: The paper uses examples from earlier research evaluation studies and cases based on online data to describe issues, problematic details, pitfalls and how to overcome them in publication analysis with respect to analytic tool application, calculation, presentation and interpretation. -- Results: By means of different kinds of analysis and presentation, the paper provides insight into scientometrics in the context of informetric analysis, selected cases of research productivity, publication patterns and research trends in the fields of renewable energy and wind power during different periods of history.

Published
2014
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3. Selecció d'exemples fonamentals d'anàlisis de publicacions cienciomètriques

Author

Ingwersen, Peter

Subjects
Scientometrics, Bibliography. Library science. Information resources, Communication. Mass media, P87-96
Abstract

Objectius: detallar una selecció de factors d'importància cabdal per calcular, presentar i interpretar els resultats d'anàlisis de publicacions des d'una perspectiva cienciomètrica, en particular amb relació a l'anàlisi del creixement i de les quotes mundials, i també la lògica que hi ha darrere del càlcul de les mitjanes d'autors, institucions o països per publicació indexats pel Web of Science. -- Metodologia: exemples d'estudis sobre avaluació de recerca anteriors i també de casos que es basen en dades recollides en línia per a aquest article demostren conflictes, detalls problemàtics, inconvenients i com superar-los en l'anàlisi de publicacions respecte de l'aplicació, del càlcul, de la presentació i de la interpretació d'eines analítiques. -- Resultats: proporciona una visió de la cienciometria en el context de l'anàlisi infomètrica, casos seleccionats de productivitat de recerca, patrons i tendències de recerca de publicacions en totes les disciplines i en els camps de l'energia renovable i l'energia eòlica en diferents períodes de temps i a través de diferents tipus d'anàlisi i presentació.Objective: This paper selects and outlines factors of central importance in the calculation, presentation and interpretation of publication analysis results from a scientometric perspective. The paper focuses on growth, world share analyses and the logic behind the computation of average numbers of authors, institutions or countries per publication indexed by Web of Science. -- Methodology: The paper uses examples from earlier research evaluation studies and cases based on online data to describe issues, problematic details, pitfalls and how to overcome them in publication analysis with respect to analytic tool application, calculation, presentation and interpretation. -- Results: By means of different kinds of analysis and presentation, the paper provides insight into scientometrics in the context of informetric analysis, selected cases of research productivity, publication patterns and research trends in the fields of renewable energy and wind power during different periods of history.

Published
2014
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4. To Phrase or Not to Phrase - Impact of User versus System Term Dependence Upon Retrieval

Author

Lioma, Christina, Larsen, Birger, and Ingwersen, Peter

Subjects
Computer Science - Information Retrieval
Abstract

When submitting queries to information retrieval (IR) systems, users often have the option of specifying which, if any, of the query terms are heavily dependent on each other and should be treated as a fixed phrase, for instance by placing them between quotes. In addition to such cases where users specify term dependence, automatic ways also exist for IR systems to detect dependent terms in queries. Most IR systems use both user and algorithmic approaches. It is not however clear whether and to what extent user-defined term dependence agrees with algorithmic estimates of term dependence, nor which of the two may fetch higher performance gains. Simply put, is it better to trust users or the system to detect term dependence in queries? To answer this question, we experiment with 101 crowdsourced search engine users and 334 queries (52 train and 282 test TREC queries) and we record 10 assessments per query. We find that (i) user assessments of term dependence differ significantly from algorithmic assessments of term dependence (their overlap is approximately 30%); (ii) there is little agreement among users about term dependence in queries, and this disagreement increases as queries become longer; (iii) the potential retrieval gain that can be fetched by treating term dependence (both user- and system-defined) over a bag of words baseline is reserved to a small subset (approxi-mately 8%) of the queries, and is much higher for low-depth than deep preci-sion measures. Points (ii) and (iii) constitute novel insights into term dependence.

Published
2018

5. A Subjective Logic Formalisation of the Principle of Polyrepresentation for Information Needs

Author

Lioma, Christina, Larsen, Birger, Schütze, Hinrich, and Ingwersen, Peter

Subjects
Computer Science - Information Retrieval
Abstract

Interactive Information Retrieval refers to the branch of Information Retrieval that considers the retrieval process with respect to a wide range of contexts, which may affect the user's information seeking experience. The identification and representation of such contexts has been the object of the principle of Polyrepresentation, a theoretical framework for reasoning about different representations arising from interactive information retrieval in a given context. Although the principle of Polyrepresentation has received attention from many researchers, not much empirical work has been done based on it. One reason may be that it has not yet been formalised mathematically. In this paper we propose an up-to-date and exible mathematical formalisation of the principle of Polyrepresentation for information needs. Specifically, we apply Subjective Logic to model different representations of information needs as beliefs marked by degrees of uncertainty. We combine such beliefs using different logical operators, and we discuss these combinations with respect to different retrieval scenarios and situations. A formal model is introduced and discussed, with illustrative applications to the modelling of information needs.

Published
2017

6. Preliminary Experiments using Subjective Logic for the Polyrepresentation of Information Needs

Author

Lioma, Christina, Larsen, Birger, and Ingwersen, Peter

Subjects
Computer Science - Information Retrieval
Abstract

According to the principle of polyrepresentation, retrieval accuracy may improve through the combination of multiple and diverse information object representations about e.g. the context of the user, the information sought, or the retrieval system. Recently, the principle of polyrepresentation was mathematically expressed using subjective logic, where the potential suitability of each representation for improving retrieval performance was formalised through degrees of belief and uncertainty. No experimental evidence or practical application has so far validated this model. We extend the work of Lioma et al. (2010), by providing a practical application and analysis of the model. We show how to map the abstract notions of belief and uncertainty to real-life evidence drawn from a retrieval dataset. We also show how to estimate two different types of polyrepresentation assuming either (a) independence or (b) dependence between the information objects that are combined. We focus on the polyrepresentation of different types of context relating to user information needs (i.e. work task, user background knowledge, ideal answer) and show that the subjective logic model can predict their optimal combination prior and independently to the retrieval process.

Published
2017

8. FindZebra: A search engine for rare diseases

Author

Dragusin, Radu, Petcu, Paula, Lioma, Christina, Larsen, Birger, Jørgensen, Henrik L., Cox, Ingemar J., Hansen, Lars Kai, Ingwersen, Peter, and Winther, Ole

Subjects
Computer Science - Information Retrieval, Computer Science - Digital Libraries
Abstract

Background: The web has become a primary information resource about illnesses and treatments for both medical and non-medical users. Standard web search is by far the most common interface for such information. It is therefore of interest to find out how well web search engines work for diagnostic queries and what factors contribute to successes and failures. Among diseases, rare (or orphan) diseases represent an especially challenging and thus interesting class to diagnose as each is rare, diverse in symptoms and usually has scattered resources associated with it. Methods: We use an evaluation approach for web search engines for rare disease diagnosis which includes 56 real life diagnostic cases, state-of-the-art evaluation measures, and curated information resources. In addition, we introduce FindZebra, a specialized (vertical) rare disease search engine. FindZebra is powered by open source search technology and uses curated freely available online medical information. Results: FindZebra outperforms Google Search in both default setup and customised to the resources used by FindZebra. We extend FindZebra with specialized functionalities exploiting medical ontological information and UMLS medical concepts to demonstrate different ways of displaying the retrieved results to medical experts. Conclusions: Our results indicate that a specialized search engine can improve the diagnostic quality without compromising the ease of use of the currently widely popular web search engines. The proposed evaluation approach can be valuable for future development and benchmarking. The FindZebra search engine is available at http://www.findzebra.com/.

Published
2013
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9. Synergistic Supervision Strategies of Mid-Level Professionals in Student Affairs

Author

Ingwersen, Peter Theodore

Abstract

This dissertation contributes to the body of knowledge about the utilization of synergistic supervision in practice and about the adult learning experiences reported by participants within the context of supervision. The research questions guiding this study are: (1) What are the synergistic practices of mid-level Student Affairs supervisors at a four-year public university?, and (2) What adult learning experiences do study participants report within the context of supervision? Using Winston and Creamer's (1997) Synergistic Supervision model as framework, data were brought to life through the narratives of the supervisors and supervisees participating in the study as they reflected on best practices for working together. Their adult learning experiences emerged through analysis of two sets of qualitative interviews and one workshop about synergistic supervision. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]

Published
2018

10. Information Seeking Research Needs Extension towards Tasks and Technology

Author

Järvelin, Kalervo and Ingwersen, Peter

Abstract

This paper discusses the research into information seeking and its directions at a general level. We approach this topic by analysis and argumentation based on past research in the domain. We begin by presenting a general model of information seeking and retrieval which is used to derive nine broad dimensions that are needed to analyze information seeking and retrieval. Past research is then contrasted with the dimensions and shown not to cover the dimensions sufficiently. Based on an analysis of the goals of information seeking research, and a view on human task performance augmentation, it is then shown that information seeking is intimately associated with, and dependent on, other aspects of work; tasks and technology included. This leads to a discussion on design and evaluation frameworks for information seeking and retrieval, based on which two action lines are proposed: information retrieval research needs extension toward more context and information seeking research needs extension towards tasks and technology.

Published
2004

11. Webometrics : ten years of expansion

Author

Ingwersen, Peter

Subjects
BB. Bibliometric methods
Abstract

In the past 10 years, webometrics has increased dramatically. Not only is the term used more often, there are more articles and even monographs on the topic, and at least one professor has been appointed in the field. The next step is to face how to merge or federate parts of the open Web, dedicated scientific Web segments, like Google Scholar and CiteSeer and/or open as well as closed repositories and archives belonging to publishers and universities for research evaluation purposes with mixed indicators. This requires novel or alternative data collection methods and fusion techniques for performing reliable and sophisticated analyses.

Published
2006

16. Developing a Test Collection for the Evaluation of Integrated Search

Author

Lykke, Marianne, Larsen, Birger, Lund, Haakon, Ingwersen, Peter, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Gurrin, Cathal, editor, He, Yulan, editor, Kazai, Gabriella, editor, Kruschwitz, Udo, editor, Little, Suzanne, editor, Roelleke, Thomas, editor, Rüger, Stefan, editor, and van Rijsbergen, Keith, editor

Published
2010
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20. The Sense of Information: Understanding the Cognitive Conditional Information Concept in Relation to Information Acquisition

Author

Ingwersen, Peter, Järvelin, Kalervo, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Crestani, Fabio, editor, and Ruthven, Ian, editor

Published
2005
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22. Users in Context

Author

Ingwersen, Peter, Goos, Gerhard, editor, Hartmanis, Juris, editor, van Leeuwen, Jan, editor, Agosti, Maristella, editor, Crestani, Fabio, editor, and Pasi, Gabriella, editor

Published
2001
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23. Emerging Frameworks and Methods. Proceedings of the International Conference on Conceptions of Library and Information Science (CoLIS4) (4th, Seattle, Washington, July 21-25, 2002).

Author

Bruce, Harry, Fidel, Raya, Ingwersen, Peter, Bruce, Harry, Fidel, Raya, and Ingwersen, Peter

Abstract

These proceedings are the fourth in the series of international conferences whose general aim is to provide a broad forum for critically exploring and analyzing library and information science as a discipline and as a field of research from historical, theoretical, philosophical, and empirical perspectives. The papers in this volume cover a wide variety of topics, presenting the latest research and discourse on developments and new approaches to frameworks and methods in library and information science. Papers range from a re-examination of the core concepts to empirical studies, analyzing such areas as Web searching, information retrieval, informetrics, information behavior, aspects of learning, and information processing mechanisms. As library and information science is closely associated with a variety of other disciplines and its practice employs technologies that are changing rapidly, presenters focus on the old and the new, address theory and practice, and bridge diverse intellectual areas, leading the way to change and further exploration. (AEF)

Published
2002

24. A User-Oriented Interface for Generalised Informetric Analysis Based on Applying Advanced Data Modelling Techniques.

Author

Jarvelin, Kalervo, Ingwersen, Peter, and Niemi, Timo

Abstract

Presents a user-oriented interface for generalized informetric analysis and demonstrates how informetric calculations can be specified through advanced data modeling techniques. Topics include bibliographic data; online information retrieval systems; citation networks; query interface; impact factors; data restructuring; and multi-level aggregation capabilities. (Author/LRW)

Published
2000

25. Editorial: Introduction to the Special Issue from the Royal School of Library and Information Science, Denmark.

Author

Ingwersen, Peter

Abstract

Describes the Royal School of Library and Information Science (Denmark), whose faculty has conducted research in library and information science since the early 1980s. Discusses the school's size and objectives, and explains that articles included in this issue present different facets of information science in an international context. (LRW)

Published
2000

26. Dimensions of Relevance.

Author

Cosijn, Erica and Ingwersen, Peter

Abstract

Discussion of relevance in information retrieval focuses on manifestations of relevance within a system of relevance. Discusses intention, context, inference, and interaction; explains the concepts of affective, motivational, situational, and socio-cognitive relevance; and proposes a consolidated model of relevance manifestations. (Author/LRW)

Published
2000

27. Cognitive Information Retrieval.

Author

Ingwersen, Peter

Abstract

Reviews and discusses critically the development during the last decade of the cognitive approach to information retrieval research and theory. The focus is analytic and empirical research on the complex nature of information need formation and situation, their inherent association with the concept of relevance, and the development of cognitive and related information retrieval theory and evaluation methods. (Contains 173 references.) (AEF)

Published
1999

30. The Calculation of Web Impact Factors.

Author

Ingwersen, Peter

Abstract

Reports the feasibility and reliability of calculating impact factors for Web sites, called Web Impact Factors. Analyzes seven small/medium scale national Web sites, four large Web domains, and six institutional Web sites over a series of snapshots taken of the Web during a month. Describes data isolation and calculation methods and discusses tests. (Author/AEF)

Published
1998

33. The Development of a Method for the Evaluation of Interactive Information Retrieval Systems.

Author

Borlund, Pia and Ingwersen, Peter

Abstract

Describes the development of a method for the evaluation and comparison of interactive information retrieval systems, which are based on the concept of a simulated work-task situation and the involvement of real end users. Highlights include real and simulated information needs; relevance assessments; and the dynamic nature of information needs. (Author/LRW)

Published
1997

34. Data Set Isolation for Bibliometric Online Analyses of Research Publications: Fundamental Methodological Issues.

Author

Ingwersen, Peter and Christensen, Finn Hjortgaard

Abstract

Discusses the retrieval dimensions of data collection activity online and their influence on the research evaluation outcome to reinforce the link between online retrieval and bibliometrics. Topics include publication counts; citation analyses; citation databases from the Institute for Scientific Information; and data set isolation. (Author/LRW)

Published
1997

35. Informetric Analyses on the World Wide Web: Methodological Approaches to 'WEBOMETRICS.'

Author

Almind, Tomas C. and Ingwersen, Peter

Abstract

Introduces the application of informetric methods to the World Wide Web (Webometrics). Presents a case study comparing the number of specific informetric analysis parameters of Denmark, Sweden, and Norway on the Web. Concludes that problems with data collection occur because current tools are inadequate and because collection methods, manual and Web index, omit some Web pages. (PEN)

Published
1997

36. Cognitive Perspectives of Information Retrieval Interaction: Elements of a Cognitive IR Theory.

Author

Ingwersen, Peter

Abstract

Discusses the basic elements of a global cognitive theory for information retrieval (IR) interaction from a cognitive point of view. Within this framework are outlined the principles underlying the concept of polyrepresentation applied simultaneously to the user's cognitive space and the information space of IR systems. Contains 95 references. (Author/LRW)

Published
1996

38. The Cognitive Perspective in Information Retrieval.

Author

Ingwersen, Peter

Abstract

Outlines principles underlying the theory of polyrepresentation as it applies to user cognitive space and information space of information retrieval (IR) systems. A discussion and diagram illustrate the interactive communication that takes place between users and IR systems in order to complete work tasks such as retrieving full text information. (Author/JMV)

Published
1994

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