NLA Trial index

NLA Trial Articles from 1851

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 4779442, Article, LIGHTHOUSE ON ROTTNEST ISLAND., page 2 1851-07-31, The Argus (Melbourne, Vic. : 1848 - 1957), 190 words, 7 corrections

Raw OCRHuman CorrectedoverProof Corrected
LlOnTHOUS.E OS ROTTNEST island LIGHTHOUSE ON ROTTNEST ISLAND. LinTHOUsE OF ROTTNEST island
" A revolving catpptrio light will be exhibited A revolving catoptric light will be exhibited " A revolving catpptrio light will be exhibited
from tho Lighthouse near the centre of Rottnest from the Lighthouse near the centre of Rottnest from the Lighthouse near the centre of Rottnest
Island, on and after the night of 1st June, Island, on and after the night of 1st June, Island, on and after the night of 1st June,
1851, during the period between sunset and 1851, during the period between sunset and 1851, during the period between sunset and
sunrise. sunrise. sunrise.
The Lighthouse is a white stouo totter, 53 The Lighthouse is a white stone tower, 53 The Lighthouse is a white stone tower, 53
feet in height, erected on tho summit of the feet in height, erected on the summit of the feet in height, erected on the summit of the
island, und is surmounted by a lantern 11 feet island, and is surmounted by a lantern 11 feet island, and is surmounted by a lantern 11 feet
high. high. high.
'i he light will consist of two groups of throe? The light will consist of two groups of three The light will consist of two groups of three?
powerful lumps each ; the whole i evolving once powerful lamps each; the whole revolving once powerful pumps each ; the whole revolving once
in two minutes, and showing a flash of lijiht of in two minutes, and showing a flash of light of in two minutes, and showing a flash of light of
fito seconda' duration every minute, with inter- five seconds' duration every minute, with intervals five seconds' duration every minute, with inter-
of 55 seconds of darkness. The centre of of 55 seconds of darkness. The centre of of 55 seconds of darkness. The centre of
the light is 197 feet above high water level, and the light is 197 feet above high water level, and the light is 197 feet above high water level, and
at tim height of l8 -feet may be seen in cloitr at the height of 18 feet may be seen in clear at the height of 18 feet may be seen in clear
w dither at a distance of 7 leagues. weather at a distance of 7 leagues. w either at a distance of 7 leagues.
Rottnest Lighthouse is in latitude 32 degrees Rottnest Lighthouse is in latitude 32 degrees Rottnest Lighthouse is in latitude 32 degrees
0 minutes 19 seconds South, longitude 115 Je 0 minutes 19 seconds South, longitude 115 de- 6 minutes 19 seconds South, longitude 165 Je
giees 31 minutcB l8 seconds East from Green- grees 31 minutes 18 seconds East from Green- gives 31 minutes 18 seconds East from Greenwich,
wich, and stands 3 miles North 7 í degrees East wich, and stands 3 miles North 75 degrees East and stands 3 miles North 7 5 degrees East
by compass from the AVest exttcmity of tho by compass from the West extremity of the by compass from the West extremity of the
Island, and 23 miles West by compass from ¡ts Island, and 23 miles West by compass from its Island, and 23 miles West by compass from its
East extremity. East extremity. East extremity.
Identified overProof corrections ITS FIVE TOWER THREE STONE CLEAR
Identified overProof non-corrections LAMPS INTERVALS CATOPTRIC WEATHER
Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words15884.295.672.0
Searchability of unique words8187.795.160.0
Weighted Words90.596.159.0

Article ID 4782311, Article, SHIPPING INTELLIGENCE. ARRIVED., page 2 1851-12-18, The Argus (Melbourne, Vic. : 1848 - 1957), 242 words, 9 corrections

Raw OCRHuman CorrectedoverProof Corrected
Stil PFI NW 1 NT ELLIG JSNCE. SHIPPING INTELLIGENCE. Stil PFI NW 1 NT ELLIG JSNCE.
ARRIVED. ARRIVED. ARRIVED.
December 17.-Amalia, schooner, 150 ton», December 17.—Amalia, schooner, 150 tons, December 17. Amalia, schooner, 150 tons,
A G French, master, from Adelaide, 13th inst, A G French, master, from Adelaide, 13th inst, A G French, master, from Adelaide, 13th inst,
in ballast. Passengers (cabin) -Mr OF Barker, in ballast. Passengers (cabin) —Mr. C. F. Barker, in ballast. Passengers (cabin) -Mr OF Barker,
and sixty-four in, the Btecrnge. Watson und and sixty-four in the steerage. Watson and and sixty-four in, the steerage. Watson and
Wight, Agents. Wight, Agents. Wight, Agents.
December 17,-Lady Flora, barque, 1011 December 17,—Lady Flora, barque, 1011 December 17, Lady Flora, barque, 300
tons, N Pentreuth, commander, from London, tons, N. Pentreath, commander, from London, tons, N Pentreath, commander, from London,
via Adelaide 13th instant. Passengers (cabin) via Adelaide 13th instant. Passengers (cabin) via Adelaide 13th instant. Passengers (cabin)
-Mr and Mrs Bennutt and family, Mr and Airs —Mr. and Mrs. Bennett and family, Mr. and Mrs. Mr. and Mrs. Bennett and family, Mr and Mrs.
Keelo and family, Mr J G Raphael, Mrs and Keele and family, Mr. J. G. Raphael, Mrs. and Keele and family, Mr J G Raphael, Mrs and
MaBter H Herbert, Mr Hutchins, Mr Merlin, Master H. Herbert, Mr. Hutchins, Mr. Merlin, Master H Herbert, Mr Hutchins, Mr Merlin,
Mr Levy, Mrs Berry and family, Mr and Mrs Mr. Levy, Mrs. Berry and family, Mr. and Mrs. Mr Levy, Mrs Berry and family, Mr and Mrs
Smith, Mr Unmack. P. Culhane, Esc}., sur- Smith, Mr. Unmack. P. Culhane, Esq., sur- Smith, Mr Unmack. P. Culhane, Esq., surgeon.
geon. Intermediate -Mr and Mrs Martin and geon. Intermediate —Mr. and Mrs. Martin and Intermediate -Mr and Mrs Martin and
family, Mrs Robinson, Mr and Miss Gilbertson, family, Mrs. Robinson, Mr. and Miss. Gilbertson, family, Mrs Robinson, Mr and Miss Gilbertson,
Mr M Gilbertson, Mrs Robinson, Mrs Keogh, Mr. M. Gilbertson, Mrs. Robinson, Mrs. Keogh, Mr M Gilbertson, Mrs Robinson, Mrs Keogh,
Mias Sparrow, Mr Greig, Mr Chiles, Mr Rotber Miss Sparrow, Mr. Greig, Mr. Chiles, Mr. Rother- Miss Sparrow, Mr Greig, Mr Chiles, Mr Robert
1mm, Air Sparrow, and one hundred and three in ham, Mr. Sparrow, and one hundred and three in 1mm, Air Sparrow, and one hundred and three in
the steerage. the steerage. the steerage.
CLEARED OUT. CLEARED OUT. CLEARED OUT.
December 17.-Victoria, barque, 358 tons, December 17.—Victoria, barque, 358 tons, December 17 Victoria, barque, 358 tons,
William Lensiington, master, for Hobart Town. William Lensington, master, for Hobart Town. William Lennington, master, for Hobart Town.
In ballast. No passengers In ballast. No passengers In ballast. No passengers
PROJECTED DEPARTURES. PROJECTED DEPARTURES. PROJECTED DEPARTURES.
Himalaya, for London, about 21st instant. Himalaya, for London, about 21st instant. Himalaya, for London, about 21st instant.
So ra h Ann, for Loudon, about 2 st iiislsnt. Sarah Ann, for London, about 21st instant. So in h Ann, for London, about 2 st instant.
Asia, for Madras, with despatch. Asia, for Madras, with despatch. Asia, for Madras, with despatch.
Constance, for Singapore, »vith despatch. Constance, for Singapore, with despatch. Constance, for Singapore, with despatch.
Margaret and Agnes, for Portland, this day Margaret and Agnes, for Portland, this day Margaret and Agnes, for Portland, this day
Yarro, for Hobart Town, to-morrow. Yarra, for Hobart Town, to-morrow. Yarra, for Hobart Town, to-morrow.
Victoria, for Hobart To»vn, to-morrow. Victoria, for Hobart Town, to-morrow. Victoria, for Hobart Town, to-morrow.
mronTS. IMPORTS. mronTS.
December 17.-Lndy Elora, from London, via December 17.— Lady Flora, from London, via December 17. Lady Flora, from London, via
Adelaide. Part of original cargo from London : Adelaide. Part of original cargo from London : Adelaide. Part of original cargo from London :
285 cases, 113 casks, 6 bales, 9 hhds, 3 qr 285 cases, 113 casks, 6 bales, 9 hhds, 3 qr- 285 cases, 113 casks, 6 bales, 9 hhds, 3 qr
casks, 29 crntps, 13 trunks, 5 kegs, I package, casks, 29 crates, 13 trunks, 5 kegs, 1 package, casks, 22 crates, 13 trunks, 5 kegs, I package,
and 3 boxes, J G Raphael. Shipped at Adelaide and 3 boxes, J. G. Raphael. Shipped at Adelaide and 3 boxes, J G Raphael. Shipped at Adelaide
-3 boxes, Order. —3 boxes, Order. -3 boxes, Order.
Identified overProof corrections ESQ KEELE CRATES BENNETT PENTREATH YARRA
Identified overProof non-corrections INTELLIGENCE ROTHERHAM SHIPPING SARAH LENSINGTON IMPORTS
Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words20287.696.572.0
Searchability of unique words10989.094.550.0
Weighted Words90.995.450.0

Article ID 59772602, Article, A GRAND BRAN-SPICKANDSPANNEW MOVING PAN-PICKSPADECRADLE-ORAMA. (Painted by Nature, with a Bar-go Brush.), page 3 1851-06-07, Bell's Life in Sydney and Sporting Reviewer (NSW : 1845 - 1860), 126 words, 3 corrections

Raw OCRHuman CorrectedoverProof Corrected
A. GRAND BRAN'-SPICKANDSPANNKW A GRAND BRAN-SPICKANDSPANNEW A. GRAND BRAN'-SPICKANDSPANNKW
MOVIXO MOVING MOVIXO
PAN-PICKSPADECRADLE-ORAMA. PAN-PICKSPADECRADLE-ORAMA. PAN-PICKSPADECRADLE-ORAMA.
rPaintcd by Nature, with a liavgo Brush.J (Painted by Nature, with a Bar-go Brush.) Painted by Nature, with a Bargo Brush
From Parramatta to tho diggings, showing tho From Parramatta to the diggings, showing the From Parramatta to the diggings, showing the
hardships of thc road in tito foreground, and hardships of the road in the foreground, and hardships of the road in the foreground, and
a considerable softness in tho distanco. Tho a considerable softness in the distance. The a considerable softness in the distance. The
I'an-ifcc.-orama is calculated to bo kept moving Pan-&c.-orama is calculated to be kept moving I'an-ifcc.-orama is calculated to be kept moving
by several thousand figures. ij«jJ0 ßro pr¡nc¡pa[ by several thousand figures. The five principal by several thousand figures. ij«jJ0 are principal
subjects are, " Tho breaking down of tho Drays," subjects are, "The breaking down of the Drays," subjects are, " The breaking down of the Drays,"
" Ascending Tho Lapstotto by Ton rise," " Get- "Ascending The Lapstone by Ton rise," "Get- Ascending The Lapstone by Ton rise," " Getting
ting over tho Kerry Upon tho Cross." " Board- ting over the Ferry Upon the Cross," "Board- over the Kerry Upon the Cross." " Board-
ing the Weather-boards,'«- and " Taking Ba- ing the Weather-boards," and "Taking Ba- ing the Weather-boarded- and " Taking Bathurst
thurst by Storm." Tho last to bo accompanied thurst by Storm." The last to be accompanied by Storm." The last to be accompanied
by ri considerable quantity of prepared thunder by a considerable quantity of prepared thunder by a considerable quantity of prepared thunder
and lightning. and lightning. and lightning.
. » . . * * * * * * . a
A lapse of "just what time you like my little A lapse of "just what time you like my little A lapse of "just what time you like my little
dears is supposed to have occurred. . dears" is supposed to have occurred. dears is supposed to have occurred.
* . . ? . * * * * * * . . ? .
Identified overProof corrections PRINCIPAL LAPSTONE DISTANCE BE PAINTED BRUSH
Identified overProof non-corrections FERRY SPICKANDSPANNEW BOARDS [**VANDALISED] FIVE GO BAR
Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words10875.091.766.7
Searchability of unique words7685.592.145.5
Weighted Words86.192.344.5

Article ID 60126378, Article, ORIGINAL CORRESPONDENCE. THE POLICE AGAIN To The Editor of the Empire., page 3 1851-12-25, Empire (Sydney, NSW : 1850 - 1875), 185 words, 4 corrections

Raw OCRHuman CorrectedoverProof Corrected
ORIGINAL CORRESPONDENCE. ORIGINAL CORRESPONDENCE. ORIGINAL CORRESPONDENCE.
; ; TUB I'OMCK AG AIN J ? THE POLICE AGAIN ! THE POLICE AGAIN To the
To the Editor of the Empire, To the Editor of the Empire, Editor of the Empire,
Sin-I request you wrtl rcojid another instnnçf SIR—I request you will record another instance SIR-I request you will record another instance
or tho brutal «rid inhuman conduct of our Cit) of the brutal and inhuman conduct of our City or the brutal and inhuman conduct of our City
Police, l'ait, night, about eleven o'clock, the Police. Last night, about eleven o'clock, the Police, last, night, about eleven o'clock, the
inmates of my house wore disturbed by a noise inmates of my house were disturbed by a noise inmates of my house were disturbed by a noise
pn the street, caused by two constables struggling on the street, caused by two constables struggling on the street, caused by two constables struggling
«¡Hi s druukdu unn¡,.an.l ono of tim uuiwtaWs with a drunken man, and one of the constables with a drunken constant one of the uuiwtaWs
«track tlio drunken man with his baton across struck the drunken man with his baton across struck the drunken man with his baton across
tho bead and laid it open ; and whon requested the head and laid it open ; and when requested the head and laid it open and when requested
by Janies Keenan, a bystander, to take tho mun by Janies Keenan, a bystander, to take the man by James Keenan, a bystander, to take the man
«¡ross tho street to my house, to have tho wound across the street to my house, to have the wound across the street to my house, to have the wound
dressed, they refused, and dragged oil' the poor dressed, they refused, and dragged off the poor dressed, they refused, and dragged off the poor
Ucediiig wretch from hi» own door to the wa tub. bleeding wretch from his own door to the watch- bleeding wretch from his own door to the wa tub.
lioiiso. Tho wound bled so profusuly thut the house. The wound bled so profusely that the house. The wound bled so profusely that the
spot where tho struggle took place ' was covered spot where the struggle took place was covered spot where the struggle took place was covered
with blood iu tho morning ; and the blow on the with blood in the morning ; and the blow on the with blood in the morning and the blow on the
innn's heod was inflicted with such violence thut man's head was inflicted with such violence that man's head was inflicted with such violence that
Ilia sound of tho stroko was heard by thu people the sound of the stroke was heard by the people Ilia sound of the stroke was heard by the people
;,. Ihn n(lioinin<r house. in the adjoining house. ;,. Ihn n(lioinin house.
; v . ¡ . F. M. F. M. ; v . ¡ . F. M.
'. Deoambur 24.-- . ? ? -. " ' ? December 24. '. December 24.-- . ? ? " ' ?
Identified overProof corrections DECEMBER WHEN IN INSTANCE ONE OFF STROKE CITY BLEEDING MANS THAT RECORD STRUCK WERE PROFUSELY LAST SIR HEAD AGAIN WILL
Identified overProof non-corrections ADJOINING JANIES [**VANDALISED] WATCHHOUSE
Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words15867.193.780.8
Searchability of unique words9777.396.986.4
Weighted Words79.097.085.6

Accumulated stats for 4 articles from year 1851

Word
count		OCR
accuracy %		overProof
accuracy %		Errors
corrected %
All Words62679.494.774.5
Searchability of unique words36384.994.865.5
Weighted Words87.095.465.1