Advanced Search
MyIDEAS: Login to save this paper or follow this series

Emerging topics in science: Subproject in the Kompetenzzentrum Bibliometrie

Contents:

Author Info

  • Michels, Carolin
  • Rettinger, Achim
Registered author(s):

    Abstract

    [Conclusion] We presented an approach for building clusters of scientific publications according to the information given by their title, authors and reference list and for selecting a list of ET candidates from these clusters. The approach was trained with information from the years 2000 and 2001 and evaluated for the years 2002 to 2007, which correspond to the years in our dataset in which ETs actually emerge. The information that would have to be processed manually could be reduced to less than 0.14 % of the dataset. We experienced problems because the actual relevance of the hay documents in the train and test set was still unknown. A hay document still could represent an ET that was not included in our list when creating these artificial haystacks. It could also be an outlier due to a deviant title, reference list etc. For instance, in the ET candidate list for dataset 3, there were documents (or 1-instance clusters) that dealt with automatically recognizing traffic signs and extracting validation rules from microbiological data. Such documents might indeed represent a topic that might have been established as a new scientific topic. Or they could simply represent a novel application for established methodologies. A clear trend in the ET candidate list for dataset 3 could be identified for grid systems which was then a newly established scientific topic. Our evaluation showed that even-though we included citations as a second non-textual feature for LDA, the approach was still prone to disruptions based on insufficient or misleading information in both titles and reference lists. An improvement of the clustering step in future work with further extensions of LDA would also influence and probably improve the connection step. Nonetheless, this step could be further improved with a more specific analysis of the individual connections made. Since our results were worse for more recent years, the connection step could be influenced by the sheer number of connection candidates, since for each year approximately 500 cluster candidates are added. Another factor for future work would be to investigate upon the fact that the performance for dataset 3 was significantly better than for the other datasets. All in all, the results suggest that the composition of our approach and its implementation are promising, but further investigations have to be made in terms of extensibility and appropriate evaluation environments. --

    Download Info

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
    File URL: http://econstor.eu/bitstream/10419/95972/1/781889170.pdf
    Download Restriction: no

    Bibliographic Info

    Paper provided by Fraunhofer Institute for Systems and Innovation Research (ISI) in its series Discussion Papers "Innovation Systems and Policy Analysis" with number 42.

    as in new window
    Length:
    Date of creation: 2014
    Date of revision:
    Handle: RePEc:zbw:fisidp:42

    Contact details of provider:
    Postal: Breslauer Stra├če 48, D-76139 Karlsruhe
    Phone: 0721/6809-0
    Fax: 0721/689152
    Email:
    Web page: http://isi.fraunhofer.de/
    More information through EDIRC

    Related research

    Keywords:

    This paper has been announced in the following NEP Reports:

    References

    No references listed on IDEAS
    You can help add them by filling out this form.

    Citations

    Lists

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    Statistics

    Access and download statistics

    Corrections

    When requesting a correction, please mention this item's handle: RePEc:zbw:fisidp:42. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (ZBW - German National Library of Economics).

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.