Laut Prüfprotokoll von letzter Woche (8. August 2011) ist der Zustand “Neuwertig, sehr guter Zustand”. Baujahr ist 10/08. Ca. 25 Flüge.

Bei Interesse verkaufe ich auch noch eine pasende Rettung (Annular) sowie mein Gurtzeug. Auf Wunsch kann der Schirm in 38300 Wolfenbüttel angesehen werden. Packsack und Rucksack von Swing (Original) . . . → Read More: Paraglider: Sting Powerplay 160]]> Verkaufe meinen Paraglider.

Laut Prüfprotokoll von letzter Woche (8. August 2011) ist der Zustand “Neuwertig, sehr guter Zustand”. Baujahr ist 10/08. Ca. 25 Flüge.

Bei Interesse verkaufe ich auch noch eine pasende Rettung (Annular) sowie mein Gurtzeug. Auf Wunsch kann der Schirm in 38300 Wolfenbüttel angesehen werden. Packsack und Rucksack von Swing (Original) ist ebenfalls dabei.

Bei Fragen erreichen Sie mich am besten per Email.

Bitte die Bilder anklicken um sie zu vergrößern.

ABSTRACT Plagiarism Detection Systems have been developed to locate instances of plagiarism e.g. within scientific papers. Studies have shown that the existing approaches deliver reasonable results in identifying copy&paste plagiarism, but fail to detect more sophisticated forms such as paraphrased, translated or idea plagiarism. The authors of this paper demonstrated in recent studies [4, 15] . . . → Read More: Publication: Citation Pattern Matching Algorithms for Citation-based Plagiarism Detection: Greedy Citation Tiling, Citation Chunking and Longest Common Citation Sequence]]> Our new paper is available:

ABSTRACT
Plagiarism Detection Systems have been developed to locate instances of plagiarism e.g. within scientific papers. Studies have shown that the existing approaches deliver reasonable results in identifying copy&paste plagiarism, but fail to detect more sophisticated forms such as paraphrased, translated or idea
plagiarism. The authors of this paper demonstrated in recent studies [4, 15] that the detection rate can be significantly improved by not only relying on text analysis, but by additionally analyzing the citations of a document. Citations are valuable language independent markers that are similar to a fingerprint. In
fact, our examinations of real world cases have shown that the order of citations in a document often remains similar even if the text has been strongly paraphrased or translated in order to
disguise plagiarism.

This paper introduces three algorithms and discusses their suitability for the purpose of Citation-based Plagiarism Detection. Due to the numerous ways in which plagiarism can occur, these algorithms need to be versatile. They must be capable of detecting transpositions, scaling and combinations in a local and global
form. The algorithms are coined Greedy Citation Tiling, Citation Chunking and Longest Common Citation Sequence. The evaluation showed that common forms of plagiarism can be detected reliably if these algorithms are combined.

• B. Gipp and N. Meuschke, “Citation Pattern Matching Algorithms for Citation-based Plagiarism
  Detection: Greedy Citation Tiling, Citation Chunking and Longest
  Common Citation Sequence,” in Proceedings of the 11th ACM Symposium on Document Engineering
  (DocEng2011), 2011.
  [Bibtex]

  @INPROCEEDINGS{Gipp11c,
    author = {{G}ipp, {B}ela and {M}euschke, {N}orman},
    title = {Citation Pattern Matching Algorithms for Citation-based Plagiarism
    Detection: Greedy Citation Tiling, Citation Chunking and Longest
    Common Citation Sequence},
    booktitle = {{P}roceedings of the 11th {ACM} {S}ymposium on {D}ocument {E}ngineering
    ({D}oc{E}ng2011)},
    year = {2011}
  }

http://www.youtube.com/watch?v=6114VMbANt8

The map shows the gps tracked flight. If possible use Google earth to see the mountains in 3d:

View 2011-06_Kössen Paragliding in a larger map

And another . . . → Read More: Video: Paragliding in Kössen]]> I filmed this video a few days ago with a helmet cam while paragliding in Kössen, Austria. It is shortened due to the youtube 15 min limit.

http://www.youtube.com/watch?v=6114VMbANt8

The map shows the gps tracked flight. If possible use Google earth to see the mountains in 3d:

View 2011-06_Kössen Paragliding in a larger map

And another video I recorded last year in France:

http://www.youtube.com/watch?v=fB2xFZvDucE

PlagAware: Initially 28% on the first 159 pages, however this included a . . . → Read More: Using Guttenberg’s doctoral thesis to test plagiarism detection systems]]> Professor Debora Weber-Wulff and her team from the HTW Berlin have tested various plagiarism detection systems. Instead of using an artificially created test data set, Guttenberg’s doctoral thesis was used. The detection results of the Plagiarism Detection Systems were, as expected, pretty poor.

PlagAware: Initially 28% on the first 159 pages, however this included a lot of garbage such as pastebin material. After we removed this and the GuttenPlag links, the amount went to 68% before the report disappeared completely. We have not been able to resubmit, it breaks off with an error.
iThenticate: 40%
Ephorus: 5%! Only 10 possible sources found, of these 3 were GuttenPlag and one a duplicate
PlagScan: 15.9%
Urkund: 21%

The results of the experiment are published in iX 6/11. Here you can find a summary.

So far Plagiarism Detection Systems rely solely on text analysis, but text-based detection systems struggle, as study results show, to identify paraphrased forms of plagiarism, idea plagiarism and translation-plagiarism.

In our paper “Comparative Evaluation of Text- and Citation-based Plagiarism Detection Approaches using GuttenPlag”, we have evaluated whether analyzing the citations of a document could help to increase detection rates.

A preprint of our paper (to be published in June 13th at the JCDL 11 conference in Ottawa), in which we evaluate the potential of citation-based plagiarism detection systems using Guttenberg’s doctoral thesis, can be found here.

The abstract:

Various approaches for plagiarism detection exist. All are based on more or less sophisticated text analysis methods such as string matching, fingerprinting or style comparison. In this paper a new approach called Citation-based Plagiarism Detection is evaluated using a doctoral thesis, in which a volunteer crowd-sourcing project called GuttenPlag identified substantial amounts of plagiarism through careful manual inspection. This new approach is able to identify similar and plagiarized documents based on the citations used in the text. It is shown that citation-based plagiarism detection performs significantly better than text-based procedures in identifying strong paraphrasing, translation and some idea plagiarism. Detection rates can be improved by combining citation-based with text-based plagiarism detection.

                    B. Gipp, N. Meuschke, and J. Beel, "Comparative Evaluation of Text- and Citation-based Plagiarism Detection
  Approaches using GuttenPlag," in Proceedings of the 11th ACM/IEEE Joint Conference on Digital
  Libraries (JCDL`11), Ottawa, Canada,  2011. 
    [Bibtex]
@INPROCEEDINGS{Gipp11b,
  author = {Bela Gipp and Norman Meuschke and Joeran Beel},
  title = {Comparative Evaluation of Text- and Citation-based Plagiarism Detection
  Approaches using GuttenPlag},
  booktitle = {{P}roceedings of the 11th {ACM}/{IEEE} {J}oint {C}onference on {D}igital
  {L}ibraries ({JCDL}`11)},
  year = {2011},
  address = {Ottawa, Canada},
  month = {June},
  abstract = {Various approaches for plagiarism detection exist. All are based on
  more or less sophisticated text analysis methods such as string matching,
  fingerprinting or style comparison. In this paper a new approach
  called Citation-based Plagiarism Detection is evaluated using a doctoral
  thesis, in which a volunteer crowd-sourcing project called GuttenPlag
  identified substantial amounts of plagiarism through careful manual
  inspection. This new approach is able to identify similar and plagiarized
  documents based on the citations used in the text. It is shown that
  citation-based plagiarism detection performs significantly better
  than text-based procedures in identifying strong paraphrasing, translation
  and some idea plagiarism. Detection rates can be improved by combining
  citation-based with text-based plagiarism detection.}
}

The developed algorithms for the citation analysis and pattern matching will be presented at the DocEng conference in Mountain View in September. I’ll upload a preprint soon.

Hilah is a fan of SciPlore and for her research she wants to perform a user study (interviews) with some users of SciPlore MindMapping to understand how academics are using SciPlore MindMapping. The . . . → Read More: Be a Guinea Pig: Take Part in a User Study and Help Improving SciPlore MindMapping]]> We – that is the SciPlore team and Hilah Geer (Head librarian at the Oslo School of Management) – need your help!

Hilah is a fan of SciPlore and for her research she wants to perform a user study (interviews) with some users of SciPlore MindMapping to understand how academics are using SciPlore MindMapping. The results will help us to understand how you are using the software and how we can improve it. Therefore, please, if you are an active academic user of Sciplore MindMapping, help us understanding how you work with SciPlore MindMapping. Participate in the 30minutes interviews and read on what Hilah has to tell you about the interviews:

Introductory Letter:

I am a seasoned academic librarian doing research in the field of Science & Technology Studies (STS).  And I need your help. I have chosen SciPlore as my research object because of its brilliant combination of functionalities for academics.  However, according to STS theory, it is not brilliant functionality that changes society; functionality cannot even really be brilliant on its own.  It is brilliant use of functionality that counts.

I think the people at SciPlore would agree.  Perhaps their secret is that they are not really concerned with creating software at all.  They are concerned with facilitating your brilliant uses for evolving functionalities.  That means that for me to understand SciPlore I need to understand how you are using it.  Data on downloads and clicks, luckily enough for us humans, is not enough.

Academic institutions allow researchers enormous freedom in managing their personal libraries. Okay, perhaps there is a little neglect mixed in with the freedom, but either way you have undoubtedly fostered a rich information ecology on your personal computer.  And you use SciPlore, which offers practical and logical functionality for managing and wrestling with ideas and texts in a digital environment.  Much of this meaningful work is hidden, black boxed, while you work independently at your personal computer. It would be a great privilege for me and I believe of benefit for SciPlore to be able to conduct telephone interviews with active SciPlore users.  Look under the proverbial hood so to speak.  Who knows, it may even help you clarify some things for yourself.

Hilah Geer

Details about the study

About me:

I am been a librarian since the early 90s.  I have worked at MIT, Harvard Business School, and a consulting firm in Berkeley, California among other places.  Most recently I have moved to Norway and am the head librarian at the Oslo School of Management.  I am exploring the field of Science & Technology Studies as a means of getting a better grasp on the role technology plays in my work.  I would very much appreciate your help!

About the interviews:

Who will be interviewed: Anyone who is working in an academic/research environment who uses SciPlore to any extent with any regularity is valuable to my research.  I will be interviewing as many of you as possible.

How will they be conducted: I personally will be conducting all of the interviews.  They will be done either on Skype or via telephone.  They will take 30 minutes.  I will be more than willing to go more in depth if the interviewee is interested.  Otherwise, I will protect your time and stick to 30 minutes.

What will they include:  first I will want to gather standardized information:  demographics, field of study, institution(s), hardware, software, and networked resources.  Then I will have a series of questions to steer a discussion of how you use SciPlore and why.

When: The main interview period will be between May 2. and June 24 (There is a degree of flexibility as regards dates).  I will be available for interviews on weekends but weekdays are preferable.

Conditions: Of course the results of the interviews will be made entirely anonymous.  Upon arrangement of the interviews you will be given a signed terms of agreement that you can choose to alter if you wish.  All processed anonymous data will be shared with SciPlore, unless requested otherwise.

 

Send an email to survey@sciplore.org to arrange an interview or ask a question about them. And Thanks!