-
Malsburg, C. von der: ¬The correlation theory of brain function (1981)
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- Abstract
- A summary of brain theory is given so far as it is contained within the framework of Localization Theory. Difficulties of this "conventional theory" are traced back to a specific deficiency: there is no way to express relations between active cells (as for instance their representing parts of the same object). A new theory is proposed to cure this deficiency. It introduces a new kind of dynamical control, termed synaptic modulation, according to which synapses switch between a conducting and a non- conducting state. The dynamics of this variable is controlled on a fast time scale by correlations in the temporal fine structure of cellular signals. Furthermore, conventional synaptic plasticity is replaced by a refined version. Synaptic modulation and plasticity form the basis for short-term and long-term memory, respectively. Signal correlations, shaped by the variable network, express structure and relationships within objects. In particular, the figure-ground problem may be solved in this way. Synaptic modulation introduces exibility into cerebral networks which is necessary to solve the invariance problem. Since momentarily useless connections are deactivated, interference between di erent memory traces can be reduced, and memory capacity increased, in comparison with conventional associative memory
- Source
- http%3A%2F%2Fcogprints.org%2F1380%2F1%2FvdM_correlation.pdf&usg=AOvVaw0g7DvZbQPb2U7dYb49b9v_
-
Gödert, W.; Lepsky, K.: Informationelle Kompetenz : ein humanistischer Entwurf (2019)
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- Footnote
- Rez. in: Philosophisch-ethische Rezensionen vom 09.11.2019 (Jürgen Czogalla), Unter: https://philosophisch-ethische-rezensionen.de/rezension/Goedert1.html. In: B.I.T. online 23(2020) H.3, S.345-347 (W. Sühl-Strohmenger) [Unter: https%3A%2F%2Fwww.b-i-t-online.de%2Fheft%2F2020-03-rezensionen.pdf&usg=AOvVaw0iY3f_zNcvEjeZ6inHVnOK]. In: Open Password Nr. 805 vom 14.08.2020 (H.-C. Hobohm) [Unter: https://www.password-online.de/?mailpoet_router&endpoint=view_in_browser&action=view&data=WzE0MywiOGI3NjZkZmNkZjQ1IiwwLDAsMTMxLDFd].
-
Donsbach, W.: Wahrheit in den Medien : über den Sinn eines methodischen Objektivitätsbegriffes (2001)
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- Source
- Politische Meinung. 381(2001) Nr.1, S.65-74 [https%3A%2F%2Fwww.dgfe.de%2Ffileadmin%2FOrdnerRedakteure%2FSektionen%2FSek02_AEW%2FKWF%2FPublikationen_Reihe_1989-2003%2FBand_17%2FBd_17_1994_355-406_A.pdf&usg=AOvVaw2KcbRsHy5UQ9QRIUyuOLNi]
-
Warner, J.: Information and redundancy in the legend of Theseus (2003)
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- Abstract
- This paper considers an instance of non-verbal graphic communication from the legend of Theseus, in terms of information theory. The efficient cause of a failure in communication is regarded as a selection error and the formal cause as the absence of redundancy from the signals (a binary contrast between a black and a white sail) for transmission. Two considerations are then introduced. First, why should such a system of signalling have been succeeded by a graphic communication system, in alphabetic written language, so strongly marked by its redundancy? Second, why has information theory been so successful in describing systems for signal transmission but far less productive for modelling human-to-human communication, at the level of meaning or of the effects of messages on recipients? The legend is read historically, adopting specific insights, a method of interpretation, and a historical schema from Vico. The binary code used for the signal transmission is located as a rare but significant transitional form, mediating between heroic emblems and written language. For alphabetic written language, a link to the sounds of oral utterance replaces the connection to the mental states of the human information source and destination. It is also suggested that redundancy was deliberately introduced to counteract the effects of selection errors and noise. With regard to information theory, it is suggested that conformity with necessary conditions for signal transmission, which may include the introduction of redundancy, cannot be expected to yield insights into communication, at the level of meaning or the effects of messages.
-
Schneider, J.W.: Emerging frameworks and methods : The Fourth International Conference on Conceptions of Library and Information Science (CoLIS4), The Information School, University of Washington, Seattle, Washington, USA, July 21-25, 2002 (2002)
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- Footnote
- Bericht über die Tagung und Kurzreferate zu den 18 Beiträgen (u.a. BELKIN, N.J.: A classification of interactions with information; INGWERSEN, P.: Cognitive perspectives of document representation; HJOERLAND, B.: Principia informatica: foundational theory of the concepts of information and principles of information services; TUOMINEN, K. u.a.: Discourse, cognition and reality: towards a social constructionist meta-theory for library and information science
- Source
- Knowledge organization. 29(2002) nos.3/4, S.231-234
-
¬The mathematical theory of information (2002)
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- Footnote
- Rez. in: Mathematical Intelligencer 29(2007) no.1, S.64-65 (C.S. Calude)
- LCSH
- Information theory
- Subject
- Information theory
-
Savolainen, R.: ¬The sense-making theory : reviewing the interests of a user-centered approach to information seeking and use (1993)
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- Abstract
- Reviews the sense-making theory which is based on constructivist assumptions on human information seeking and use. Focuses on the uses epistemic and practical interests of the theory, discussing them in relation to the interests of the traditional intermediary-centered approach. Sense-making theory is a programmatic research effort suggesting user-centered ideas for the conceptualization of the information seeking and use. Its contribution to LIS research is critique to the limitations of the traditional intermediary-centred approach
- Source
- Information processing and management. 29(1993) no.1, S.13-28
-
Leydesdorff, L.; Johnson, M.W.; Ivanova, I.: Toward a calculus of redundancy : signification, codification, and anticipation in cultural evolution (2018)
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- Abstract
- This article considers the relationships among meaning generation, selection, and the dynamics of discourse from a variety of perspectives ranging from information theory and biology to sociology. Following Husserl's idea of a horizon of meanings in intersubjective communication, we propose a way in which, using Shannon's equations, the generation and selection of meanings from a horizon of possibilities can be considered probabilistically. The information-theoretical dynamics we articulate considers a process of meaning generation within cultural evolution: information is imbued with meaning, and through this process, the number of options for the selection of meaning in discourse proliferates. The redundancy of possible meanings contributes to a codification of expectations within the discourse. Unlike hardwired DNA, the codes of nonbiological systems can coevolve with the variations. Spanning horizons of meaning, the codes structure the communications as selection environments that shape discourses. Discursive knowledge can be considered as meta-coded communication that enables us to translate among differently coded communications. The dynamics of discursive knowledge production can thus infuse the historical dynamics with a cultural evolution by adding options, that is, by increasing redundancy. A calculus of redundancy is presented as an indicator whereby these dynamics of discourse and meaning may be explored empirically.
- Date
- 29. 9.2018 11:22:09
-
Tuominen, K.: Yksilo tiedonhankkijana : sense-making -teorian nakokulma tiedonhankintaprosessiin (1994)
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- Abstract
- Presents a critical review of the sense making theory of Brenda Dervin, an important contribution to the theory building in information studies. Special attention is given to the use of the sense making theory in empirical research. Claims that the difficulties faced in data collection and analysis when applying sense making as a methodology are dur to the fact that the conceptual apparatus developed by Dervin has not yet been sufficiently elaborated. Dervin, along with many other theorizers of information seeking and use, is also criticized for ignoring the social nature and context of knowledge and thought. The construction of meaning, and thinking in general, it not only a subjective process but it also involves socially shared representations and ideas
- Date
- 29. 3.1996 21:35:26
- Footnote
- Übers. d. Titels: The individual as an information seeker: sense-making theory and the information seeking
-
Mari, H.: Dos fundamentos da significao a producao do sentido (1996)
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- Abstract
- An approach to establishing a relationship between knowing, informing and representing, using aspects of linguistic theory to clarify semantic theory as the basis for an overall theory of meaning. Linguistic knowledge is based on a conceptual matrix which defines convergence / divergence of the categories used to specify an object's parameters; work on the analysis of discourse emphasisis the social dimension of meaning, which is the basis of the theory of acts and speech. The evaluation criteria used to determine questions about the possibility of knowledge are necessarily decisive, this opens up promising perspectives if formulating a relationship between conceptual and pragmatic approaches
- Date
- 29. 1.1996 18:23:13
-
Kantor, P.B.: Information theory (2009)
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- Abstract
- Information theory "measures quantity of information" and is that branch of applied mathematics that deals with the efficient transmission of messages in an encoded language. It is fundamental to modern methods of telecommunication, image compression, and security. Its relation to library information science is less direct. More relevant to the LIS conception of "quantity of information" are economic concepts related to the expected value of a decision, and the influence of imperfect information on that expected value.
-
Friedman, A.: Concept mapping a measurable sign (2006)
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- Abstract
- The objective of this study was to classify, according to Peirce's definition of the term sign, the various forms of concept mapping presented in 2000 and 2004 proceedings of ISKO Conferences. Our analysis was unable to discover relationships between Peirce's Thirdness category and Interpretant classifications with regard to concept mapping. The concept mappings we analyzed did not provide text descriptions nor graphic representations as they had when we analyzed Firstness, Secondness, Object and Representamen representations. We see a need for additional studies to assess Peirce's Thirdness trichotomy and Interpretant classifications as they might be applied to concept mapping.
-
Houston, R.D.; Harmon, E.G.: Re-envisioning the information concept : systematic definitions (2002)
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- Date
- 22. 2.2007 18:56:23
22. 2.2007 19:22:13
- Source
- Emerging frameworks and methods: Proceedings of the Fourth International Conference on the Conceptions of Library and Information Science (CoLIS4), Seattle, WA, July 21 - 25, 2002. Eds.: Fidel, R., H. Bruce, P. Ingwersen u. P. Vakkari
-
Hicks, A.: Moving beyond the descriptive : the grounded theory of mitigating risk and the theorisation of information literacy (2020)
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- Abstract
- Purpose Information literacy has been consistently undertheorised. The purpose of this paper is to contribute in the ongoing theorisation of information literacy by exploring the meaning and implications of the emergent grounded theory of mitigating risk for information literacy research and practice. Design/methodology/approach The grounded theory was produced through a qualitative study that was framed by practice theory and the theoretical constructs of cognitive authority and affordance, and employed constructivist grounded theory, semi-structured interviews and photo-elicitation methods to explore the information literacy practices of language-learners overseas. Findings This paper provides a theoretically rich exploration of language-learner information literacy practices while further identifying the importance of time, affect and information creation within information literacy research and practice as well as the need for the continued theorisation of information literacy concepts. Research limitations/implications The paper's constructivist grounded theorisation of information literacy remains localised and contextualised rather than generalisable. Practical implications The paper raises questions and points of reflection that may be used to inform the continued development of information literacy instruction and teaching practices. Originality/value This paper contributes to an increasingly sophisticated theoretical conceptualisation of information literacy as well as forming a basis for ongoing theoretical development in the field.
-
Pastor, J.A.S.: ¬El nuevo documento electronico de la tabla relacional al hiperdocumento (1996)
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- Abstract
- Criticizes the current processes of information management, with the objective of arriving at a new concept of the electronic document. Discusses problems of human language in the context of information management. Examines the problem of information from the point of view of the structure of knowledge, by analysing dysfunction in current processes of information management. Proposes a model of knowledge nearer to the human mind called 'document hypertext'. A combined interface of information management id also applicable in studies of hardware, graphic interfaces and metaphors of visualization of information. The current excessive fragmentation and artificial treatment of information structures could be avoided by simplifying of processes of information management and creating integral interfaces that bring information systems closer to the user
-
Savolainen, R.: Tiedon kayton tutkimus informaatiotutkimuksessa (1994)
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- Abstract
- Presents an overview of research on information use. The majority of use and user studies are surveys which focus on the consulting of different information sources and channels. In most studies, however, the substantial issues of information use are omitted. Discusses conceptual and terminological questions of information use and knowledge utilization. No consensus on the definition of these concepts exists among researchers because they can have no direct access to individual processes of information use. Examines the contributions made to information use theory by Brenda Dervin and Robert S. Taylor. Reviews the categories of uses specified in Dervin's sense making theory and discusses Taylor's concept of information use environments. Considers some methodological questions concerning the challenges of empirical research on information use
- Date
- 29. 3.1996 21:35:26
-
Hjoerland, B.: Towards a theory of aboutness, subject, topicality, theme, domain, field, content ... and relevance (2001)
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- Abstract
- Theories of aboutness and theories of subject analysis and of related concepts such as topicality are often isolated from each other in the literature of information science (IS) and related disciplines. In IS it is important to consider the nature and meaning of these concepts, which is closely related to theoretical and metatheoretical issues in information retrieval (IR). A theory of IR must specify which concepts should be regarded as synonymous concepts and explain how the meaning of the nonsynonymous concepts should be defined
- Date
- 29. 9.2001 14:03:14
-
Tuominen, K.: Modernin ihmiskuva tiedonhankintatutkimuksessa : esimerkkitapauksena Carol C. Kuhlthaun konstruktistinen tiedonhankinnan teoria (1995)
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- Abstract
- The contemporary user centred research paradigm in the study of information needs, seeking, and use is critically evaluated with regard to its ideological presuppositions. Discussed Carol C. Kuhlthau's theory of information seeking as an example of a research approach that seems to ignore its ideological nature. In Kuhlthau's theory, the actor is discursively constituted according to subject-object dualisms prevailing in modernity's conception of human identity. This conception draws sharp distinctions between the categories of mind-body and individual-society and has been heavily criticized. Claims that the discourse used by Kuhlthau is closely connected to the interests of the library professionals trying to improve their social status in contemporary Western society. Considers some ways to overcome the methodological individualism characterizing contemporary user centred research
- Date
- 29. 3.1996 21:35:26
- Footnote
- Übers. d. Titels: Modernity and the identity of the human actor in user-centred research as exemplified by Carol C. Kuhlthau's theory of information seeking
-
Stonier, T.: Information and meaning : an evolutionary perspective (1997)
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- Abstract
- Information and meaning is the third book in a trilogy exploring the nature of information, intelligence and meaning. It begins by providing an overview of the first 2 works of the trilogy, then goes on to consider the meaning of meaning. This exploration leads to a theory of how the brain works. This book differs from others in the field, in that it is written from the perspective of a theoretical biologist looking at the evolution of information systems as a basis for studying the phenomena of information, intelligence and meaning. It describes how neurons create a brain which understands information inputs and then is able to operate on such information
- Date
- 29. 7.2002 12:14:39
- LCSH
- Knowledge, Theory of
- Subject
- Knowledge, Theory of
-
Logothetis, N.K.: ¬Das Sehen : ein Fenster zum Bewußtsein (2000)
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- Date
- 31.12.1996 19:29:41
22. 7.2000 19:02:07
