Search (3349 results, page 1 of 168)

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  1. Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.09 
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    Content
    Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
    Date
    8. 1.2013 10:22:32
  2. Malsburg, C. von der: ¬The correlation theory of brain function (1981) 0.09 
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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_
  3. Hockett, C.F.: ¬The problem of universals in language (1963) 0.09 
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    Pages
    S. 1-22
  4. Levy, D.M.: Digital libraries and the problem of purpose (2000) 0.08 
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    Source
    Bulletin of the American Society for Information Science. 26(2000), no.6, Aug/Sept, S.22-25
  5. Chalmers, D.J.: ¬The conscious mind : in search of a fundamental theory (1996) 0.07 
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    RSWK
    Geist / Bewusstsein / Leib-Seele-Problem
    Subject
    Geist / Bewusstsein / Leib-Seele-Problem
  6. Tononi, G.: Phi : a voyage from the brain to the soul (2012) 0.07 
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    RSWK
    Bewusstsein / Gehirn / Physiologie / Leib-Seele-Problem
    Subject
    Bewusstsein / Gehirn / Physiologie / Leib-Seele-Problem
  7. Elliott, P.: Reporting LIS research : a review article (1990) 0.06 
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    Abstract
    Discusses the problem of library and information science research publishing and reviews the monographs, abstracting services and periodicals that disseminate information about research.
    Source
    Librarianship. 22(1990), no.4, S.257-264
  8. Stojanovic, N.: Ontology-based Information Retrieval : methods and tools for cooperative query answering (2005) 0.06 
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    Abstract
    By the explosion of possibilities for a ubiquitous content production, the information overload problem reaches the level of complexity which cannot be managed by traditional modelling approaches anymore. Due to their pure syntactical nature traditional information retrieval approaches did not succeed in treating content itself (i.e. its meaning, and not its representation). This leads to a very low usefulness of the results of a retrieval process for a user's task at hand. In the last ten years ontologies have been emerged from an interesting conceptualisation paradigm to a very promising (semantic) modelling technology, especially in the context of the Semantic Web. From the information retrieval point of view, ontologies enable a machine-understandable form of content description, such that the retrieval process can be driven by the meaning of the content. However, the very ambiguous nature of the retrieval process in which a user, due to the unfamiliarity with the underlying repository and/or query syntax, just approximates his information need in a query, implies a necessity to include the user in the retrieval process more actively in order to close the gap between the meaning of the content and the meaning of a user's query (i.e. his information need). This thesis lays foundation for such an ontology-based interactive retrieval process, in which the retrieval system interacts with a user in order to conceptually interpret the meaning of his query, whereas the underlying domain ontology drives the conceptualisation process. In that way the retrieval process evolves from a query evaluation process into a highly interactive cooperation between a user and the retrieval system, in which the system tries to anticipate the user's information need and to deliver the relevant content proactively. Moreover, the notion of content relevance for a user's query evolves from a content dependent artefact to the multidimensional context-dependent structure, strongly influenced by the user's preferences. This cooperation process is realized as the so-called Librarian Agent Query Refinement Process. In order to clarify the impact of an ontology on the retrieval process (regarding its complexity and quality), a set of methods and tools for different levels of content and query formalisation is developed, ranging from pure ontology-based inferencing to keyword-based querying in which semantics automatically emerges from the results. Our evaluation studies have shown that the possibilities to conceptualize a user's information need in the right manner and to interpret the retrieval results accordingly are key issues for realizing much more meaningful information retrieval systems.
    Content
    Vgl.: http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F1627&ei=tAtYUYrBNoHKtQb3l4GYBw&usg=AFQjCNHeaxKkKU3-u54LWxMNYGXaaDLCGw&sig2=8WykXWQoDKjDSdGtAakH2Q&bvm=bv.44442042,d.Yms.
  9. Opdahl, A.L.; Sindre, G.: Facet modelling : an approach to flexible and integrated conceptual modelling (1997) 0.06 
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    Abstract
    Points to weaknesses of conceptual modelling languages that are oriented towards certain aspects of the problem domain of information systems development. Modelling languages are needed that allow modellers to: freely choose to represent a wide and extensible range of aspects of problem domain phenomena continguent on the problems at hand; simultaneously co-represent several aspects of the same problem domain phenomenon whenever needed; reflect semantical relations between these aspects in the problem domain models; and extend the set of kinds of aspects that can be represented and visualised throughout problem analysis as understanding of the problem domain and the problems at hand increases. Outlines an approach called facet modelling of real-world problem domains to deal with the complexity of contemporary analysis problems. Defines and visualizes facet models, discusses facet modelling in relation to other recent ideas and techniques in the information system development field. Case studies are currently in progress to evaluate various implications of the facet modelling approach empirically
    Source
    Information systems. 22(1997) no.5, S.291-323
  10. Kleineberg, M.: Context analysis and context indexing : formal pragmatics in knowledge organization (2014) 0.06 
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    Source
    http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=0CDQQFjAE&url=http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F3131107&ei=HzFWVYvGMsiNsgGTyoFI&usg=AFQjCNE2FHUeR9oQTQlNC4TPedv4Mo3DaQ&sig2=Rlzpr7a3BLZZkqZCXXN_IA&bvm=bv.93564037,d.bGg&cad=rja
  11. DeRaedt, L.: Logical settings for concept-learning (1997) 0.06 
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    Abstract
    Analyzes 3 different formalisations of concept-learning in logic. Learning from interpretations reduces to learning from entailment, which in turn reduces to learning from satisfiability. Discusses the implications for inductive logic programming and computational learning theory and formulates guidelines for choosing a problem-setting method
    Date
    6. 3.1997 16:22:15
    22. 1.1999 18:56:45
  12. Bonhomme, S.; Roisin, C.: Interactively restructuring HTML documents (1996) 0.05 
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    Abstract
    Presents a solution to the problem of trasnforming the document structure in a HTML editor. Describes a tool based on a transformation language. Techniques that have been designed for general structured documents have been adapted to take into account the specific structure of the HTML DTD
    Date
    1. 8.1996 22:08:06
  13. Eisenberg, M.: Big 6 tips : number two. Information seeking strategies (1997) 0.05 
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    Abstract
    Discusses stage 2 in the process of teaching information problem solving, information seeking strategies, which has 2 components: determining the range of possible sources, and evaluating them to determine priorities. Describes 'brainstorming and narrow', the essential process for information seeking strategies
    Source
    Emergency librarian. 25(1997) no.2, S.22
  14. Koch, C.: Consciousness : confessions of a romantic reductionist (2012) 0.05 
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    Content
    In which I introduce the ancient mind-body problem, explain why I am on a quest to use reason and empirical inquiry to solve it, acquaint you with Francis Crick, explain how he relates to this quest, make a confession, and end on a sad note -- In which I write about the wellsprings of my inner conflict between religion and reason, why I grew up wanting to be a scientist, why I wear a lapel pin of Professor Calculus, and how I acquired a second mentor late in life -- In which I explain why consciousness challenges the scientific view of the world, how consciousness can be investigated empirically with both feet firmly planted on the ground, why animals share consciousness with humans, and why self-consciousness is not as important as many people think it is -- In which you hear tales of scientist-magicians that make you look but not see, how they track the footprints of consciousness by peering into your skull, why you don't see with your eyes, and why attention and consciousness are not the same -- In which you learn from neurologists and neurosurgeons that some neurons care a great deal about celebrities, that cutting the cerebral cortex in two does not reduce consciousness by half, that color is leached from the world by the loss of a small cortical region, and that the destruction of a sugar cube-sized chunk of brain stem or thalamic tissue leaves you undead -- In which I defend two propositions that my younger self found nonsense--you are unaware of most of the things that go on in your head, and zombie agents control much of your life, even though you confidently believe that you are in charge -- In which I throw caution to the wind, bring up free will, Der ring des Nibelungen, and what physics says about determinism, explain the impoverished ability of your mind to choose, show that your will lags behind your brain's decision, and that freedom is just another word for feeling -- In which I argue that consciousness is a fundamental property of complex things, rhapsodize about integrated information theory, how it explains many puzzling facts about consciousness and provides a blueprint for building sentient machines -- In which I outline an electromagnetic gadget to measure consciousness, describe efforts to harness the power of genetic engineering to track consciousness in mice, and find myself building cortical observatories -- In which I muse about final matters considered off-limits to polite scientific discourse: to wit, the relationship between science and religion, the existence of God, whether this God can intervene in the universe, the death of my mentor, and my recent tribulations.
    Footnote
    Rez. in: The New York Review of Books, 10.01.2013 ( J. Searle): "The problem of consciousness remains with us. What exactly is it and why is it still with us? The single most important question is: How exactly do neurobiological processes in the brain cause human and animal consciousness? Related problems are: How exactly is consciousness realized in the brain? That is, where is it and how does it exist in the brain? Also, how does it function causally in our behavior? To answer these questions we have to ask: What is it? Without attempting an elaborate definition, we can say the central feature of consciousness is that for any conscious state there is something that it feels like to be in that state, some qualitative character to the state. For example, the qualitative character of drinking beer is different from that of listening to music or thinking about your income tax. This qualitative character is subjective in that it only exists as experienced by a human or animal subject. It has a subjective or first-person existence (or "ontology"), unlike mountains, molecules, and tectonic plates that have an objective or third-person existence. Furthermore, qualitative subjectivity always comes to us as part of a unified conscious field. At any moment you do not just experience the sound of the music and the taste of the beer, but you have both as part of a single, unified conscious field, a subjective awareness of the total conscious experience. So the feature we are trying to explain is qualitative, unified subjectivity.
    RSWK
    Bewusstsein / Willensfreiheit / Leib-Seele-Problem / Neurowissenschaftler / Erlebnisbericht 1990-2010
    Koch, Christof *1956-* / Bewusstsein / Willensfreiheit / Leib-Seele-Problem / Neurowissenschaften / Autobiographie
    Subject
    Bewusstsein / Willensfreiheit / Leib-Seele-Problem / Neurowissenschaftler / Erlebnisbericht 1990-2010
    Koch, Christof *1956-* / Bewusstsein / Willensfreiheit / Leib-Seele-Problem / Neurowissenschaften / Autobiographie
  15. Information literacy : a position paper on information problem solving; American Association of School Librarians Position Statement (1995) 0.05 
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    Abstract
    Adopted and formatted in 1994 and reprinted with the permission of the American Association of School Librarians. Information literacy is the term being applied to the skills of information problem solving. Identifies the key elements of information literacy and presents a rationale for integrating information literacy into all aspects of the K-12 and post secondary curriculum
    Date
    11. 4.1996 14:22:40
  16. Ballard, T.; Grimaldi, A.: Improve OPAC searching by reducing tagging errors in MARC records (1997) 0.05 
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    Abstract
    One of the most common errors in cataloguing library materials involves miscoding of the nonfiling indicator of title fields. Notes the extent of the problem and its negative effect on searching in the library's online catalogue and surveys how librarians have approached solutions to the problems. Describes how the major library automation system address this problem
    Date
    6. 3.1997 16:22:15
  17. Popper, K.R.: Three worlds : the Tanner lecture on human values. Deliverd at the University of Michigan, April 7, 1978 (1978) 0.05 
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    https%3A%2F%2Ftannerlectures.utah.edu%2F_documents%2Fa-to-z%2Fp%2Fpopper80.pdf&usg=AOvVaw3f4QRTEH-OEBmoYr2J_c7H
  18. Marchiori, M.: ¬The limits of Web metadata, and beyond (1998) 0.05 
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    Abstract
    Highlights 2 major problems of the WWW metadata: it will take some time before a reasonable number of people start using metadata to provide a better Web classification, and that no one can guarantee that a majority of the Web objects will be ever properly classified via metadata. Addresses the problem of how to cope with intrinsic limits of Web metadata, proposes a method to solve these problems and show evidence of its effectiveness. Examines the important problem of what is the required critical mass in the WWW for metadata in order for it to be really useful
    Date
    1. 8.1996 22:08:06
  19. Haverty, M.: Information architexture without internal theory : an inductive design process (2002) 0.05 
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    Abstract
    This article suggests that Information Architecture (IA) design is primarily an inductive process. Although toplevel goals, user attributes and available content are periodically considered, the process involves bottom-up design activities. IA is inductive partly because it lacks internal theory, and partly because it is an activity that supports emergent phenomena (user experiences) from basic design components. The nature of IA design is well described by Constructive Induction (CI), a design process that involves locating the best representational framework for the design problem, identifying a solution within that framework and translating it back to the design problem at hand. The future of IA, if it remains inductive or develops a body of theory (or both), is considered.
    Date
    3.10.2002 17:22:41
  20. Byrd, J.: ¬A cooperative cataloguing proposal for Slavic and East European languages and the languages of the former Soviet Union (1993) 0.05 
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    Abstract
    This paper proposes, as a backlog reduction strategy, a national cooperative cataloging program among libraries with major collections in the Slavic and East European languages and in the languages of the former Soviet Union. The long-standing problem of cataloging backlogs is discussed, including a brief discussion of some of the other ways that have been used to address the problem. The proposal for a cooperative effort is outlined and some of the cataloging issues to be considered are discussed.
    Date
    12. 1.2007 13:22:35

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  • el 134
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  • b 31
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  • r 15
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  • h 1
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