NLA Trial index

NLA Trial Articles from 1841

Notes
  1. Accuracy of OCR and overProof is measured in comparison with the human corrections. We know human corrections in this sample are incomplete, and themselves contain errors, but they are the best we could find automatically from the NLA newspapers corpus, tagged as completely corrected then further filtered to those with at least 3 corrections, at least 40% of lines corrected and lowest third percentage of non-dictionary words.
  2. Accuracy is measured by a separate process from that used to colour words in this output: the colouring process is heuristic, and not completely accurate.
  3. Colour legend:
    Text - OCR text corrected by human and/or overProof
    Text - human and/or overProof corrections
    Text - discrepencies between human and/or overProof
    Text - human corrections not applied by overProof
  4. Identified overProof corrections are calculated by the statistical calculation process, and shows those words changed by overProof which ALSO match human corrections. As human corrections are often wrong and incomplete, so too is this list.
  5. Identified overProof non-corrections are calculated by the statistical calculation process, and shows those words in the overProof output which DO NOT MATCH human corrections. As human corrections are often wrong and incomplete, so too is this list. Words marked as [**VANDALISED] are those which have been changed by overProof but not by the human correction; as before, a missed human correction will be (incorrectly) classified as vandalisation by overProof.
  6. Searchability of unique words refers to the distinct words in an article, and how many are present before and after correction. It is measure of how many of the words within an article could be used to find the article using a search engine.
  7. Weighted Words refers to a calculation in which common words count for little (a fraction of a word) and unusual words count for more, in proportion to the log of the inverse of their frequency in the corpus. It may be an indicator of how well distinctive words in an article can be searched before and after correction.

Article ID 32189955, Family Notices, Family Notices, page 3 1841-07-19, The Sydney Monitor and Commercial Advertiser (NSW : 1838 - 1841), 186 words, 8 corrections

Raw OCRHuman CorrectedoverProof Corrected
BIRTHS. BIRTHS. BIRTHS.
On the 2nd instant, the lady of C. H. On the 2nd instant, the lady of C. H. On the 2nd instant, the lady of C. H.
Ross, Esq., R. N., of a daughter. Ross, Esq., R. N., of a daughter. Ross, Esq., R. N., of a daughter.
On the 16th instant, at her residence) Cumber On the 16th instant, at her residence, Cumber- On the 16th instant, at her residence) Cumberland-street,
land-street, Mrs. William Mattinson, of a daugh land-street, Mrs. William Mattinson, of a daugh- Mrs. William Mattinson, of a daugh
ghter. ter. ghter.
DEATHS. DEATHS. DEATHS.
Of Scarlatin", on Wednesday night, Amelia Of Scarlatina, on Wednesday night, Amelia Of Scarlatina", on Wednesday night, Amelia
Elizabeth, infant daughter of Mr. G. Thornton. Elizabeth, infant daughter of Mr. G. Thornton. Elizabeth, infant daughter of Mr. G. Thornton.
At Macquarie-place, on the 14th July, 1841, At Macquarie-place, on the 14th July, 1841, At Macquarie-place, on the 14th July, 1841,
Peter Steel, the infant son of Mr. Adam Roxburgh. Peter Steel, the infant son of Mr. Adam Roxburgh, Peter Steel, the infant son of Mr. Adam Roxburgh.
aged eight months. aged eight months. aged eight months.
__On the 29th alt. Captain George Stephenson, On the 29th ult. Captain George Stephenson, On the 29th alt. Captain George Stephenson,
of the barque * Georgiana.' of London, aged 39 of the barque 'Georgiana,' of London, aged 39 of the barque * Georgiana.' of London, aged 39
years. Captain Stephenson was a younger bro years. Captain Stephenson was a younger bro- years. Captain Stephenson was a younger brother
ther of the Trinity House,. London,, and was much ther of the Trinity House, London, and was much of the Trinity House,. London, and was much
respected by all who knew him ; he was marridd respected by all who knew him ; he was married respected by all who knew him he was married
since his airival in port, and has left a young since his arrival in port, and has left a young since his arrival in port, and has left a young
widow to lament his loss. On Friday last, his widow to lament his loss. On Friday last, his widow to lament his loss. On Friday last, his
remains were interred in the burying.ground, remains were interred in the burying-ground, remains were interred in the burying-ground,
Melbourne, and the body was followed to the Melbourne, and the body was followed to the Melbourne, and the body was followed to the
grave by tbe whole of the commanders of the grave by the whole of the commanders of the grave by the whole of the commanders of the
vessels now in port. vessels now in port. vessels now in port.
On Friday Evening, of hooping cough, at lower On Friday Evening, of hooping cough, at lower On Friday Evening, of hooping cough, at lower
George-street, James the infant son of Mr. Alex. George-street, James the infant son of Mr. Alex- George-street, James the infant son of Mr. Alexander
ander Douglas, aged twelve months. ander Douglas, aged twelve months. Douglas, aged twelve months.
-t'P l IP~r n - r""II'- n - '; ? '--i -t'P l IP~r n - rail'- n - '; ? '--i
Identified overProof corrections MARRIED SCARLATINA ARRIVAL /BURYING/GROUND|BURYINGGROUND
Identified overProof non-corrections ULT
Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words15495.598.771.4
Searchability of unique words9394.698.980.0
Weighted Words95.799.180.0

Accumulated stats for 1 articles from year 1841

Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words15495.598.771.1
Searchability of unique words9394.698.979.6
Weighted Words95.799.179.1