YES!
Martin
On 2/13/2023 8:19 PM, Athanasios Velios via Crm-sig wrote:
Dear all,
Many thanks to those who voted for the CRMsci examples. Also, many
thanks to Wolfgang who has flagged several inaccuracies with the
Titanic examples, done deeper research and has provided further
clarity. Following his review, Athina and I thought it is appropriate
to send another e-vote out with the more recently proposed changes.
Apologies for asking for another reading of the examples from you, but
hopefully this will be the final piece of work for version 2.0. Any
more issues beyond the specific examples can be raised against version
2.1 which we will prepare as soon as version 2.0 is ready.
Please vote YES if you are happy with the changes below (any minor
editorial changes should not stop you from voting YES, we can take
care of them anyway). Vote NO if you think the examples are not
appropriate and need further work, with some explanation on what that
work should be. *Please vote by the end of day Friday the 17th of
February*.
*S23 Position Measurement*
Added a sentence in the scope note to emphasise that S23 Position
Measurement is not a sub-class of S21 Measurement:
"This class does not inherit properties from class S21 Measurement."
Revised examples:
• the measurement of the position of the Titanic for the initial
distress call after hitting an iceberg (S23) [The iceberg was hit on
14 April 1912 at 23:40 ship’s time. The subsequent position
measurement was likely done by Capt. Edward Smith and was transmitted
15 April 1912 at 00:27.] (Halpern, 2011)
• the measurement of the position of the Titanic by officer Joseph
G. Boxhall after the initial distress signal was sent (S23) [done
between 00:27 and 00:35, when Boxhall showed the coordinates to Smith]
(Halpern, 2011)
• the measurement of the position of the Titanic by Robert
Ballard's team after the Titanic ship-wreck was found (S23) (Ballard
et al., 1987)
*O30 determined position*
Revised examples:
• The measurement of the position of the Titanic for the initial
distress call after hitting an iceberg (S23) /determined position/
41°44′N 50°24′W (E94). [This was quickly determined via ‘dead
reckoning’, i.e. based on the distance travelled since the previous
known location, extrapolating a previous dead reckoning for 14 April
1912 20:00] (Halpern, 2011, Boxhall, 1962)
• The measurement of the position of the Titanic by officer Joseph
G. Boxhall after the initial distress signal was sent (S23)
/determined position/ 41°46′N 50°14′W (E94). [This was again
determined via dead reckoning but extrapolating Boxhall's own
measurement shortly after 20:00, and revised the original position.]
(Halpern, 2011, Boxhall, 1962)
• The measurement of the position of the Titanic by Robert
Ballard's team after the Titanic ship-wreck was found (S23)
/determined position/ 41°43′32′′N 49°56′49′′W (E94). [This was the
position of the centre of the ‘boiler field’, part of the Titanic
debris] (Ballard et al., 1987)
*O31 has validity time-span*
Changed scope note opening sentence:
From: "This property associates an instance of S23 Position
Measurement with the instance of E52 Time-Span for which the
measurement is valid."
To: "This property associates an instance of S23 Position Measurement
with the instance of E52 Time-Span for which the measurement is valid
according to the observer at the time of the observation. "
Revised examples (note these no longer refer to E52 with date/times
and apart from the ship-wreck discovery event, they refer to the
collision, not the measurement):
• The measurement of the position of the Titanic for the initial
distress call after hitting an iceberg (S23) /has validity time-span/
the time of the collision (E52). [This is a plausible guess based on
Boxhall’s account; the collision was on 14 April 1912 23:40 ship’s
time.] (Halpern, 2011, Boxhall, 1962)
• The measurement of the position of the Titanic by officer Joseph
G. Boxhall after the initial distress signal was sent (S23) /has
validity time-span/ the time of the collision (E52). [Boxhall was
convinced of the correctness of his position measurement until his
death.] (Halpern 2011, Boxhall, 1962)
• The measurement of the position of the Titanic by Robert
Ballard's team after the Titanic ship-wreck was found (S23) /has
validity time-span/ the time of the position measurement (E52). [This
time period falls within the 1st of September 1985 00:48, i.e. the
first encounter of a piece of Titanic debris and 1987] (Ballard et
al., 1987)
*O32 measured position of*
Revised examples:
• The measurement of the position of the Titanic for the initial
distress call after hitting an iceberg (S23) /measured position of/
the Titanic (E22). (Halpern, 2011)
• The measurement of the position of the Titanic by officer Joseph
G. Boxhall after the initial distress signal was sent (S23) /measured
position of/ the Titanic (E22) (Halpern, 2011)
• The measurement of the position of the Titanic by Robert
Ballard's team after the Titanic ship-wreck was found (S23) /measured
position of/ the Titanic. [More precisely it measured the centre of
the ‘boiler field’ of Titanic’s debris] (E22) (Ballard et al., 1987)
*Revised works cited:*
Ballard, R.D. (1987) /The Discovery of the Titanic/. Warner.
Boxhall, J. (1962) ‘Joseph Groves Boxhall - Radio Interview’.
Available at: https://www.encyclopedia-titanica.org/boxhall.html
(Accessed: 10 February 2023).
Halpern, S. (2011) ‘Chronology of events with references and notes’,
in /Report into the loss of the SS Titanic: a centennial reappraisal/.
Stroud, Gloucestershire [U.K.]: History Press.
*Figure 10*
*
*
Figure 10 has been modified accordingly to reflect the time-span
validity of the collision as in the examples.
Many thanks for taking the time to improve and review these examples.
Looking forward to concluding version 2.0.
All the best,
Thanasis and Athina
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Dr. Martin Doerr
Honorary Head of the
Center for Cultural Informatics
Information Systems Laboratory
Institute of Computer Science
Foundation for Research and Technology - Hellas (FORTH)
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