NLA Trial index

NLA Trial Articles from 1855

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 3716239, Article, LIGHT-HOUSE ON CAPE MORETON., page 2 1855-03-24, The Moreton Bay Courier (Brisbane, Qld. : 1846 - 1861), 114 words, 13 corrections

Raw OCRHuman CorrectedoverProof Corrected
LIGHT-HOUSE ON CA^E MORETON. LIGHT-HOUSE ON CAPE MORETON. LIGHT-HOUSE ON CAPE MORETON.
TriE loss of,"the Gei'roan immigrant THE loss of the German immigrant THE loss of the German immigrant
barque Aurora suppliers'" Another painful^ barque Aurora supplies another painful barque Aurora supplies'" Another painful
proof of the wretched inefficiency of our proof of the wretched inefficiency of our proof of the wretched inefficiency of our
Government-at MoretqjnBay., .Admit- Government at Moreton Bay. Admit- Government-at MoretqjnBay., Admit-
ting that great blame must be attached ting that great blame must be attached ting that great blame must be attached
to the owners for sending the ship to sea to the owners for sending the ship to sea to the owners for sending the ship to sea
without a proper chart, it is yet plain without a proper chart, it is yet plain without a proper chart, it is yet plain
enough that alight-house at Cape More- enough that a light-house at Cape Moreton enough that light-house at Cape More-
would have prevented the error which would have prevented the error which would have prevented the error which
ha3 led to this catastrophe. That no has led to this catastrophe. That no has led to this catastrophe. That no
lives were lost ¡nu3t bo attributed to the lives were lost must be attributed to the lives were lost must be attributed to the
mercy of Providence and1, the presence of mercy of Providence and the presence of mercy of Providence and the presence of
mind of the Captain. The moral guilt mind of the Captain. The moral guilt mind of the Captain. The moral guilt
of the long delay thaè has occurred in of the long delay that has occurred in of the long delay that has occurred in
establishing,this light-house, romains as establishing this light-house, remains as establishing, this light-house, remains as
heavily upon the Government as if every heavily upon the Government as if every heavily upon the Government as if every
soul on board had perished. soul on board had perished. soul on board had perished.
Identified overProof corrections GERMAN ESTABLISHING AND REMAINS SUPPLIES
Identified overProof non-corrections BAY
Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words11585.297.482.4
Searchability of unique words8192.698.883.3
Weighted Words94.199.692.4

Article ID 12970284, Article, DEPARTURES., page 4 1855-06-11, The Sydney Morning Herald (NSW : 1842 - 1954), 75 words, 3 corrections

Raw OCRHuman CorrectedoverProof Corrected
DKPAItTURES. DEPARTURES. DEPARTURES.
June O - ra'erim, for M -rcton 13 *y. June 9.—Palermo, for Moreton Bay. June 9 - interim, for M -action 13 by.
Juno 0.-Donkin-, for Melb .urne. June 9.—Douglas, for Melbourne. June 0. Donkin-, for Melbourne
June 9.-Uost-hut, for Wanganui. June 9.—Rosebud, for Wanganui. June 9.-Uost-hut, for Wanganui.
Juno 9.-Hrothers, f ir Mnretou Bay. June 9.—Brothers, for Moreton Bay. Juno 9. Brothers, for Moreton Bay.
Juno 9.-Xtatoaka, for Coylon. June 9.—Matoaka, for Ceylon. June 9.-Xtatoaka, for Ceylon.
Juno ?:-Fi'Wn for Melbourne, June 9.—Fawn, for Melbourne. June s: FaWn for Melbourne,
.Tune 9.-Ciaill\a, for Ót»p;o. June 9.—Camilla, for Otago. June 9.-Ciaill\a, for stope.
June 9.-Gaz Ile. for Wellington. June 9.—Gaz Ile, for Wellington. June 9. Gaz The. for Wellington.
June 9.-Jessie, for South Rea«. June 9.—Jessie, for South Seas. June 9. Jessie, for South Seas.
June 0.-Biomaranjr (».1, for Moreton Bay. June 9.—Boomerang (s.), for Moreton Bay. June 0.-Biomaranjr (s, for Moreton Bay.
Juno 9 -Tasmania (p.), tor Hobart Town. June 9.—Tasmania (s.), for Hobart Town. June 9 -Tasmania (s.), for Hobart Town.
Jnno 0.-Won« Woi.ga (j ), for Melbourne. June 9.—Wonga Wonga (s.), for Melbourne. June 0. Wong Wonga (j ), for Melbourne.
Jane 9.-Cnlle&der, for M"lbournc. June 9.—Callender, for Melbourne. Jane 9. Callender, for Melbourne.
Juno 10.-Ganymede, for Guam. June 10.—Ganymede, for Guam. June 10. Ganymede, for Guam.
Identified overProof corrections DEPARTURES CALLENDER SEAS WONGA CEYLON BROTHERS FAWN
Identified overProof non-corrections ILE [**VANDALISED] MATOAKA CAMILLA ROSEBUD PALERMO DOUGLAS OTAGO BOOMERANG
Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words6451.679.758.1
Searchability of unique words3053.373.342.9
Weighted Words52.472.642.5

Article ID 12970833, Article, DEPARTURES., page 4 1855-06-23, The Sydney Morning Herald (NSW : 1842 - 1954), 52 words, 4 corrections

Raw OCRHuman CorrectedoverProof Corrected
DEPARTURES. DEPARTURES. DEPARTURES.
Juno 22.-Amaranth, for Mauritius. June 22.—Amaranth, for Mauritius. Juno 22. Amaranth, for Mauritius.
Juno 22.-Himalaya, f r Slmrapore. June 22.—Himalaya, for Singapore. June 22. Himalaya, for Singapore.
June 22.-Roso Ellis, for Vilparaiso. June 22.—Rose Ellis, for Valparaiso. June 22. Rose Ellis, for Valparaiso.
Juno 22.-Mai garet, for Gm long. June 22.—Margaret, for Geelong. June 22. May garet, for Gm long.
June 22 -Rebecca, for Molbourna. June 22.—Rebecca, for Melbourne. June 22 -Rebecca, for Melbourne.
Juno 22-Charlotte, for Sjurabaya. June 22.—Charlotte, for Sourabaya. June 22 Charlotte, for Sourabaya.
June 22 -Pty urite, for -louth Sea Islands. June 22.—Favourite, for South Sea Islands. June 22 -Pty write, for -South Sea Islands.
June 22 -Dionysia C ith mm, for Batavli. June 22.—Dionysia Catharina, for Batavia. June 22 -Dionysia C with him, for Batavia.
Juno 22 -Oecau Queen, for Calino. June 22.—Ocean Queen, for Callao. June 22 -Ocean Queen, for Callao.
Identified overProof corrections CALLAO VALPARAISO BATAVIA SOUTH OCEAN SOURABAYA MELBOURNE SINGAPORE ROSE
Identified overProof non-corrections GEELONG MARGARET FAVOURITE CATHARINA
Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words4254.888.173.7
Searchability of unique words2650.084.669.2
Weighted Words51.684.768.4

Article ID 12976755, Article, DEPARTURES., page 4 1855-12-07, The Sydney Morning Herald (NSW : 1842 - 1954), 82 words, 3 corrections

Raw OCRHuman CorrectedoverProof Corrected
^ . - _. . DEPARTURES. DEPARTURES. ^ . - _. DEPARTURES.
December fl.-Ehs», for London. December 6.—Eliza, for London. December flashes, for London.
December C-Polly, resumed ber voyage. December 6.—Polly, resumed her voyage. December C-Polly, resumed her voyage.
December «.-Ceaar, for Shanghai. December 6.—Cæsar, for Shanghai. December decease, for Shanghai.
December 6 -Auckland, for Geelong. December 6.—Auckland, for Geelong. December 6 Auckland, for Geelong.
Deosrober «.- Little Pet, for Melbourne. December 6.—Little Pet, for Melbourne. December 9.- Little Pet, for Melbourne.
D3ce<nber R -Tubal Cain, for Melbourne. December 6.—Tubal Cain, for Melbourne. DEcember R -Tubal Cain, for Melbourne.
December 6 -Marr Grant, for Hobart Town. December 6.—Mary Grant, for Hobart Town. December 6 -Mary Grant, for Hobart Town.
December 6. --Tarra Tarra (a ), for Melbourne. December 6.—Yarra Yarra (s.), for Melbourne. December 6. --Yarra Yarra (s), for Melbourne.
Dcemtar B.-Matías Comino, for Adelaide. December 6.—Matías Cousino, for Adelaide. Dcemtar Regattas Comino, for Adelaide.
Decembrr 6.-Tamar («.). for Twofold Bar. December 6.—Tamar (s.), for Twofold Bay. December 6. Tamar (s.). for Twofold Bay.
December 6 -Tasmania (a ), for Hobart Torra. December 6.—Tasmania (s.), for Hobart Town. December 6 -Tasmania (s), for Hobart Torra.
Drcembor 6.-Fronde, far Adolaide. December 6.—Francis, for Adelaide. December 6 Fronde, far Adelaide.
' December 0 -Curlew, for South Sea Island!. December 6.—Curlew, for South Sea Islands. December 0 -Curlew, for South Sea Island!.
Identified overProof corrections HER MARY BAY YARRA
Identified overProof non-corrections CÆSAR FRANCIS ELIZA ISLANDS MATÍAS [**VANDALISED] COUSINO
Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words6471.985.950.0
Searchability of unique words3574.382.933.3
Weighted Words75.384.035.0

Accumulated stats for 4 articles from year 1855

Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words28570.289.564.7
Searchability of unique words17275.689.054.8
Weighted Words74.387.852.8