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Papers by Peter Ingwersen

Research paper thumbnail of Cognitive Perspectives of Information Retrieval Interaction: Elements of a Cognitive Ir Theory

Journal of Documentation, 1996

The objective of the paper is to amalgamate theories of text retrieval from various research trad... more The objective of the paper is to amalgamate theories of text retrieval from various research traditions into a cognitive theory for information retrieval interaction. Set in a cognitive framework, the paper outlines the concept of polyrepresentation applied to both the user's cognitive space and the information space of IR systems. The concept seeks to represent the current user's information need, problem state, and domain work task or interest in a structure of causality. Further, it implies that we should apply different methods of representation and a variety of IR techniques of different cognitive and functional origin simultaneously to each semantic full-text entity in the information space. The cognitive differences imply that by applying cognitive overlaps of information objects, originating from different interpretations of such objects through time and by type, the degree of uncertainty inherent in IR is decreased. Polyrepresentation and the use of cognitive overlaps are associated with, but not identical to, data fusion in IR. By explicitly incorporating all the cognitive structures participating in the interactive communication processes during IR, the cognitive theory provides a comprehensive view of these processes. It encompasses the ad hoc theories of text retrieval and IR techniques hitherto developed in mainstream retrieval research. It has elements in common with van Rijsbergen and Lalmas' logical uncertainty theory [1] and may be regarded as compatible with that conception of IR. Epistemologically speaking, the theory views IR interaction as processes of cognition, potentially occurring in all the information processing components of IR, that may be applied, in particular, to the user in a situational context. The theory draws upon basic empirical results from information seeking investigations in the operational online environment, and from mainstream IR research on partial matching techniques and relevance feedback.

Research paper thumbnail of Short Communication Visibility and impact of research in Psychiatry for North European countries in EU, US and world contexts

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

Research paper thumbnail of On-line indicators of Danish biomedical publication behaviour 1988-96: international visibility, impact and co-operation in a Scandinavian and world context

Research Evaluation, 1999

ABSTRACT

Research paper thumbnail of Informetric analyses on the world wide web: methodological approaches to �webometrics�

Journal of Documentation, Sep 30, 1997

This article introduces the application of informetric methods to the World Wide Web (WWW), also ... more This article introduces the application of informetric methods to the World Wide Web (WWW), also called Webometrics. A case study presents a workable method for general informetric analyses of the WWW. In detail, the paper describes a number of specific informetric analysis parameters. As a case study the Danish proportion of the WWW is compared to those of other Nordic countries. The methodological approach is comparable with common bibliometric analyses of the ISI citation databases. Among other results the analyses demonstrate that Denmark would seem to fall seriously behind the other Nordic countries with respect to visibility on the Net and compared to its position in scientific databases.

Research paper thumbnail of The International Visibility and Citation Impact of Scandinavian Research Articles in Selected Social Science Fields: The Decay of a Myth

Scientometrics, Mar 14, 2015

Research paper thumbnail of Emerging Frameworks and Methods: Proceedings of the Fourth International Conference on Conceptions of Library and Information Science (CoLIS 4)

Research paper thumbnail of Integrated Information Retrieval in a Knowledge Worker Support System

Proceedings of the 12th Annual International Acm Sigir Conference, 1989

This paper describes the design of the information retrieval facilities of an integrated informat... more This paper describes the design of the information retrieval facilities of an integrated information system called EUROMATH. EUROMATH is an example of a Knowledge Worker Support System: it has been designed specifically to support mathematicians in their research work. EUROMATH is required to provide uniform retrieval facilities for searching in a user's personal data, in a shared database of structured

Research paper thumbnail of General-purpose fault detection for pulsed power applications

Conference Record of the 2000 Twenty Fourth International Power Modulator Symposium, Jun 26, 2000

Research paper thumbnail of Information in Italy

Journal of Information Science, 1983

Research paper thumbnail of The Turn: Integration of Information Seeking and Retrieval in Context (The Information Retrieval Series)

... Ingwersen (1996, p. 13) notes that there exists in the IS&R literatur... more ... Ingwersen (1996, p. 13) notes that there exists in the IS&R literature "an inherent and silent agreement that information be-havior, seeking and retrieval mainly take place among academics". We aim at integrating research on academic, professional and other (leisure, cul-tural ...

Research paper thumbnail of Visibility and impact of research in Psychiatry for North European countries in EU, US and world contexts

Scientometrics, Mar 31, 2002

An earlier publication and citation analysis of Scandinavian clinical and social medicine 1988–96... more An earlier publication and citation analysis of Scandinavian clinical and social medicine 1988–96 reported that in particular Sweden and Denmark loose publication and citation world shares in many medical fields. In well fare systems such observations are alarming, and follow up studies and monitoring are thus carried out in selected medical fields. One such typical field is Psychiatry. It was

Research paper thumbnail of Information and Information Science in Context

Libri, Apr 1, 1992

ABSTRACT

Research paper thumbnail of Information in Italy

Journal of Information Science

Research paper thumbnail of Extending Information Seeking and Retrieval Research Toward Context

Research paper thumbnail of ON THE HOLISTIC COGNITIVE THEORY FOR INFORMATION RETRIEVAL Drifting Outside the Border of the Laboratory Framework

Research paper thumbnail of Systemevaluering og brugerevaluering (System evaluation and user evaluation)

Research paper thumbnail of Information and Information Systems

People in Organisations, 1990

This book is intended as a general introduction to information systems for anybody whose interest... more This book is intended as a general introduction to information systems for anybody whose interests extend beyond the techniques and technology. It is not a manual of practical techniques, nor is it another survey of information technology. It is intended for students ...

Research paper thumbnail of Cognitive analysis and the role of the intermediary in information retrieval

Research paper thumbnail of The Human Approach to Information Science and Management: The Framework and Prospects Underlying the New Danish MSc Programme

Research paper thumbnail of Cognitive Perspectives of Information Retrieval Interaction: Elements of a Cognitive Ir Theory

Journal of Documentation, 1996

The objective of the paper is to amalgamate theories of text retrieval from various research trad... more The objective of the paper is to amalgamate theories of text retrieval from various research traditions into a cognitive theory for information retrieval interaction. Set in a cognitive framework, the paper outlines the concept of polyrepresentation applied to both the user's cognitive space and the information space of IR systems. The concept seeks to represent the current user's information need, problem state, and domain work task or interest in a structure of causality. Further, it implies that we should apply different methods of representation and a variety of IR techniques of different cognitive and functional origin simultaneously to each semantic full-text entity in the information space. The cognitive differences imply that by applying cognitive overlaps of information objects, originating from different interpretations of such objects through time and by type, the degree of uncertainty inherent in IR is decreased. Polyrepresentation and the use of cognitive overlaps are associated with, but not identical to, data fusion in IR. By explicitly incorporating all the cognitive structures participating in the interactive communication processes during IR, the cognitive theory provides a comprehensive view of these processes. It encompasses the ad hoc theories of text retrieval and IR techniques hitherto developed in mainstream retrieval research. It has elements in common with van Rijsbergen and Lalmas' logical uncertainty theory [1] and may be regarded as compatible with that conception of IR. Epistemologically speaking, the theory views IR interaction as processes of cognition, potentially occurring in all the information processing components of IR, that may be applied, in particular, to the user in a situational context. The theory draws upon basic empirical results from information seeking investigations in the operational online environment, and from mainstream IR research on partial matching techniques and relevance feedback.

Research paper thumbnail of Short Communication Visibility and impact of research in Psychiatry for North European countries in EU, US and world contexts

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

Research paper thumbnail of On-line indicators of Danish biomedical publication behaviour 1988-96: international visibility, impact and co-operation in a Scandinavian and world context

Research Evaluation, 1999

ABSTRACT

Research paper thumbnail of Informetric analyses on the world wide web: methodological approaches to �webometrics�

Journal of Documentation, Sep 30, 1997

This article introduces the application of informetric methods to the World Wide Web (WWW), also ... more This article introduces the application of informetric methods to the World Wide Web (WWW), also called Webometrics. A case study presents a workable method for general informetric analyses of the WWW. In detail, the paper describes a number of specific informetric analysis parameters. As a case study the Danish proportion of the WWW is compared to those of other Nordic countries. The methodological approach is comparable with common bibliometric analyses of the ISI citation databases. Among other results the analyses demonstrate that Denmark would seem to fall seriously behind the other Nordic countries with respect to visibility on the Net and compared to its position in scientific databases.

Research paper thumbnail of The International Visibility and Citation Impact of Scandinavian Research Articles in Selected Social Science Fields: The Decay of a Myth

Scientometrics, Mar 14, 2015

Research paper thumbnail of Emerging Frameworks and Methods: Proceedings of the Fourth International Conference on Conceptions of Library and Information Science (CoLIS 4)

Research paper thumbnail of Integrated Information Retrieval in a Knowledge Worker Support System

Proceedings of the 12th Annual International Acm Sigir Conference, 1989

This paper describes the design of the information retrieval facilities of an integrated informat... more This paper describes the design of the information retrieval facilities of an integrated information system called EUROMATH. EUROMATH is an example of a Knowledge Worker Support System: it has been designed specifically to support mathematicians in their research work. EUROMATH is required to provide uniform retrieval facilities for searching in a user's personal data, in a shared database of structured

Research paper thumbnail of General-purpose fault detection for pulsed power applications

Conference Record of the 2000 Twenty Fourth International Power Modulator Symposium, Jun 26, 2000

Research paper thumbnail of Information in Italy

Journal of Information Science, 1983

Research paper thumbnail of The Turn: Integration of Information Seeking and Retrieval in Context (The Information Retrieval Series)

... Ingwersen (1996, p. 13) notes that there exists in the IS&R literatur... more ... Ingwersen (1996, p. 13) notes that there exists in the IS&R literature "an inherent and silent agreement that information be-havior, seeking and retrieval mainly take place among academics". We aim at integrating research on academic, professional and other (leisure, cul-tural ...

Research paper thumbnail of Visibility and impact of research in Psychiatry for North European countries in EU, US and world contexts

Scientometrics, Mar 31, 2002

An earlier publication and citation analysis of Scandinavian clinical and social medicine 1988–96... more An earlier publication and citation analysis of Scandinavian clinical and social medicine 1988–96 reported that in particular Sweden and Denmark loose publication and citation world shares in many medical fields. In well fare systems such observations are alarming, and follow up studies and monitoring are thus carried out in selected medical fields. One such typical field is Psychiatry. It was

Research paper thumbnail of Information and Information Science in Context

Libri, Apr 1, 1992

ABSTRACT

Research paper thumbnail of Information in Italy

Journal of Information Science

Research paper thumbnail of Extending Information Seeking and Retrieval Research Toward Context

Research paper thumbnail of ON THE HOLISTIC COGNITIVE THEORY FOR INFORMATION RETRIEVAL Drifting Outside the Border of the Laboratory Framework

Research paper thumbnail of Systemevaluering og brugerevaluering (System evaluation and user evaluation)

Research paper thumbnail of Information and Information Systems

People in Organisations, 1990

This book is intended as a general introduction to information systems for anybody whose interest... more This book is intended as a general introduction to information systems for anybody whose interests extend beyond the techniques and technology. It is not a manual of practical techniques, nor is it another survey of information technology. It is intended for students ...

Research paper thumbnail of Cognitive analysis and the role of the intermediary in information retrieval

Research paper thumbnail of The Human Approach to Information Science and Management: The Framework and Prospects Underlying the New Danish MSc Programme