RLALT/ACoPDoc

Armenian Printed Documents OCR Benchmark

A benchmark dataset for evaluating OCR and document-layout systems on Armenian printed documents. This benchmark covers 20 diverse document types — legal acts, government decisions, court rulings, dictionaries, textbooks, literary works, religious texts, contracts, and reports — to test OCR robustness across varied layouts, fonts, and print quality.

The benchmark contains 200 pages across 20 source documents (10 pages per source), combining both born-digital PDFs (real text layer) and scanned PDFs (image-only, manually transcribed).

Overview

This corpus is designed to stress-test Armenian OCR and layout-analysis systems beyond the newspaper domain. It enables:

• Evaluating OCR accuracy across legal, administrative, literary, and religious registers
• Testing layout-analysis robustness on both born-digital and scanned documents
• Benchmarking word-level and line-level recognition systems on the same ground truth
• Studying model behavior under different content filters (non-Armenian text, graphics/headers)

Data Description

Each source document was rendered to page images and annotated at the paragraph level with bounding boxes, reading order, region type, and (for a ground-truth subset) full text transcription. Documents span both born-digital PDFs, where paragraph boxes were derived from the real PDF text layer before being converted to pixel coordinates, and scanned PDFs, where boxes were estimated manually from the rendered page image. In the published dataset both are stored uniformly as pixel-space bbox values (see Dataset Structure below).

Dataset Structure

Each row corresponds to one document page and contains:

Column	Type	Description
page_id	string	Unique page identifier
source	string	Source document the page comes from (see Sources below)
split	string	Dataset split (test)
image	Image	Full-page render
image_width	int	Image width in pixels
image_height	int	Image height in pixels
annotations	list	Ground-truth regions (see below)

Each entry in `annotations has:

Field	Type	Description
id	string	Region identifier, unique within the page
label	string	Region type (see label taxonomy below)
transcription	string	Ground-truth text for the region ("" where transcription was not collected)
reading_order	int	Reading order within the page (-1 if unset)
parent_id	string	ID of the parent region ("" for top-level regions)
bbox	float[4]	Bounding box [x1, y1, x2, y2] in pixels
rotation	float	Rotation angle in degrees

Regardless of whether the source page was born-digital or scanned (see the Text layer column in Sources below), bbox coordinates are always in pixel space matching image_width/image_height.

Annotation Schema

Label taxonomy

Label	Description
Text	Body text paragraph
Title	Document or section title
Heading	Section/chapter heading, below title level
Header	Running header repeated at the top of pages
Footer	Running footer / page number at the bottom of pages
List_Item	Numbered or bulleted list entry
Dialogue	Dialogue or quoted-speech line (literary texts)
Verse	Poetic verse line (poetry, prayers)
Signature	Signature block or signatory name
Photo	Photograph, illustration, or other non-text graphic
Divider	Visual separator (rule, line) between regions
Annotation	Marginal note or annotation outside the main text flow

Sources

Source ID	Document	Pages	Text layer
Arlis	Constitution of the Republic of Armenia, via the ARLIS legal database	10	born-digital
Assembly	Three draft laws before the National Assembly of RA: amendments to the Criminal Procedure Code (videoconferencing for detained defendants), to the Law on Prevention of Family and Domestic Violence, and to the Law on Holidays and Days of Remembrance	10	born-digital
Bank_Contract	Two bank service-contract templates: an Ameriabank paid-services contract and an ArmSwissBank custody/safekeeping-services contract (approved by Board Decision N84-L, 28.08.2014)	10	born-digital
Chess_Textbook	"Շախմատ" (Chess), grade-2 school textbook by L. Martirosyan, S. Misakyan, N. Movsisyan (2023)	10	born-digital
Code_Of_Laws	Criminal Code of the Republic of Armenia (adopted 18 April 2003)	10	born-digital
Court_Decision	Constitutional Court of RA decision on the conformity of the EAEU–Indonesia free trade agreement (signed St. Petersburg, 21 Dec 2025) with the Constitution	10	born-digital
Dictionary	"Ամենագործածական տնտեսագիտական տերմինների բացատրական բառարան" — explanatory dictionary of common economic terms	10	scanned
Dissertation	"Էլեկտրոնային մամուլի լեզուն (բառային կազմ, քերականական համակարգ)" — dissertation by A. A. Khachatryan, Institute of Language after Hr. Acharyan, NAS RA	10	born-digital
Fables	Collection of fable-poems ("Առակներ"); individual pieces dated 1910–1945, written in Venice/Paris/Yerevan	10	born-digital
Gospel_Images	Illustrated gospel book (image-heavy pages)	10	scanned
Gov_Decision	Three RA Government decisions/drafts: N1763-L (12 Oct 2023, social assistance for persons displaced from Nagorno-Karabakh), N1820-L (19 Oct 2023, amending decision N922-L), and a 2017 draft resolution approving the Cybersecurity Strategy	10	mixed (scanned + born-digital)
Gov_Program	RA Government Programme 2021–2026 (Annex to Government Decision N1363-A, 18 Aug 2021)	10	born-digital
History_Textbook	"Հայոց պատմություն" (History of Armenia), grade-7 school textbook by Smbat Hovhannisyan (Yerevan, 2023)	10	born-digital
Human_Comedy	Armenian translation of William Saroyan's novel "The Human Comedy," translated by Grigor Keshishyan	10	scanned
Jonathan_Livingston	Armenian translation of Richard Bach's "Jonathan Livingston Seagull," translated by Naira Harutyunyan	10	born-digital
Order	Official Armenian translation of Order No. 249 of the General Administration of Customs of the People's Republic of China	10	born-digital
OSCE_Report	OSCE/ODIHR report on the Republic of Armenia Extraordinary Parliamentary Elections, 20 June 2021	10	born-digital
Poetry	Poetry collection of Hovhannes Shiraz, compiled by Anush Sarumyan ("Dizak Plus" publishing, Stepanakert, 2016)	10	born-digital
Police_Order	Police orders/decrees (legacy font encoding prevents clean text extraction from the source PDFs)	10	scanned
Prayer	"Ամենօրյա աղոթագիրք" (Daily Prayer Book), published by the Mother See of Holy Etchmiadzin, 2011	10	scanned

Each source contributes 10 pages (200 pages total).

Note on rights: All source documents were collected from openly available, open-sourced sources.

Intended Use

This corpus is intended for:

• Benchmarking Armenian OCR systems across document types beyond periodicals
• Evaluating document-layout analysis on mixed born-digital/scanned inputs
• Comparing word-level vs. line-level OCR architectures on identical ground truth
• Research on OCR post-processing and text normalization for Armenian

Evaluation

Predictions against this dataset are scored with the same evaluation kit used for RLALT/ACoPPer: see evaluation_kit/ (in particular evaluate_from_hf.py, which also accepts --dataset RLALT/ACoPDoc directly).

OCR Evaluation Results

CER (Character Error Rate) summary for each report filter variant.

Document structure-independent models

These models output one bounding box + recognized text per individual word. Before scoring script spatially groups words into lines using vertical-overlap and horizontal-gap heuristics: words that share a line are concatenated in reading order into a single predicted row, which is then matched against whichever ground-truth box(es) it falls inside and compared via character edit distance. Because line breaks are reconstructed rather than given, document structure-independent scores also depend on how well that grouping heuristic reassembles lines — a good recognizer can still lose points here if word boxes are noisy enough to throw off the grouping.

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	3.92%	3.65%	3.92%	3.65%
tesseract	5.28%	5.01%	5.28%	5.01%
ocarm	2.06%	1.85%	2.05%	1.85%
portmind	1.70%	1.50%	1.70%	1.50%
abbyy	3.78%	3.51%	3.78%	3.51%
google-vision	3.96%	3.95%	3.96%	3.95%

Document structure-aware models

These models output one bounding box + recognized text per already-complete text line. Each line becomes its own predicted row as-is — no grouping step is applied, so the line breaks scored are exactly what the model itself produced. This means document structure-aware CER reflects both character recognition accuracy and the model's own line-segmentation quality (over- or under-splitting a line shows up directly in the score), unlike document structure-independent scoring where line boundaries come from a separate, model-independent grouping heuristic.

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	4.66%	4.33%	4.66%	4.33%
tesseract	5.91%	5.58%	5.91%	5.58%
ocarm	2.06%	1.85%	2.06%	1.85%
portmind	8.49%	8.31%	8.49%	8.31%
abbyy	3.93%	3.63%	3.93%	3.63%
google-vision	4.34%	4.33%	4.34%	4.33%

Per-document breakdown

CER by document/category group, for every model with per-document evaluation output available, split into document structure-aware and -independent tables per document (see above for what distinguishes the two).

1-Arlis

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.54%	0.54%	0.54%	0.54%
tesseract	0.95%	0.95%	0.95%	0.95%
ocarm	0.21%	0.21%	0.21%	0.21%
portmind	0.20%	0.20%	0.20%	0.20%
abbyy	0.97%	0.97%	0.97%	0.97%
google-vision	1.78%	1.78%	1.78%	1.78%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.42%	0.42%	0.42%	0.42%
tesseract	0.83%	0.83%	0.83%	0.83%
ocarm	0.23%	0.23%	0.23%	0.23%
portmind	0.20%	0.20%	0.20%	0.20%
abbyy	0.97%	0.97%	0.97%	0.97%
google-vision	1.78%	1.78%	1.78%	1.78%

10 page(s) in this group.

2-Assembly

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	5.49%	1.82%	5.49%	1.82%
tesseract	6.84%	3.43%	6.84%	3.43%
ocarm	3.68%	0.87%	3.68%	0.87%
portmind	4.21%	1.56%	4.21%	1.56%
abbyy	5.05%	1.61%	5.05%	1.61%
google-vision	3.01%	3.08%	3.01%	3.08%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	6.24%	1.72%	6.24%	1.72%
tesseract	7.68%	3.27%	7.68%	3.27%
ocarm	3.68%	0.87%	3.68%	0.87%
portmind	18.70%	16.79%	18.70%	16.79%
abbyy	5.66%	1.68%	5.66%	1.68%
google-vision	3.01%	3.08%	3.01%	3.08%

10 page(s) in this group.

3-Bank_Contract

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	3.30%	3.04%	3.30%	3.04%
tesseract	3.72%	3.45%	3.72%	3.45%
ocarm	2.55%	2.56%	2.55%	2.56%
portmind	2.64%	2.62%	2.64%	2.62%
abbyy	4.11%	3.84%	4.11%	3.84%
google-vision	4.67%	4.66%	4.67%	4.66%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	4.11%	3.85%	4.11%	3.85%
tesseract	4.49%	4.23%	4.49%	4.23%
ocarm	2.55%	2.56%	2.55%	2.56%
portmind	5.93%	5.92%	5.93%	5.92%
abbyy	4.21%	3.93%	4.21%	3.93%
google-vision	4.52%	4.51%	4.52%	4.51%

10 page(s) in this group.

4-Chess_Textbook

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	5.28%	5.28%	5.28%	5.28%
tesseract	6.28%	6.28%	6.28%	6.28%
ocarm	2.64%	2.64%	2.64%	2.64%
portmind	3.69%	3.69%	3.69%	3.69%
abbyy	5.05%	5.05%	5.05%	5.05%
google-vision	6.59%	6.59%	6.59%	6.59%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	20.45%	20.45%	20.45%	20.45%
tesseract	22.08%	22.08%	22.08%	22.08%
ocarm	2.97%	2.97%	2.97%	2.97%
portmind	9.33%	9.33%	9.33%	9.33%
abbyy	5.43%	5.43%	5.43%	5.43%
google-vision	6.81%	6.81%	6.81%	6.81%

10 page(s) in this group.

5-Code_Of_Laws

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	5.19%	5.19%	5.19%	5.19%
tesseract	5.15%	5.15%	5.15%	5.15%
ocarm	0.88%	0.88%	0.88%	0.88%
portmind	0.42%	0.42%	0.42%	0.42%
abbyy	1.62%	1.62%	1.62%	1.62%
google-vision	2.45%	2.45%	2.45%	2.45%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	4.33%	4.33%	4.33%	4.33%
tesseract	3.91%	3.91%	3.91%	3.91%
ocarm	0.70%	0.70%	0.70%	0.70%
portmind	0.42%	0.42%	0.42%	0.42%
abbyy	1.62%	1.62%	1.62%	1.62%
google-vision	2.45%	2.45%	2.45%	2.45%

10 page(s) in this group.

6-Court_Decision

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.77%	0.77%	0.77%	0.77%
tesseract	1.40%	1.40%	1.40%	1.40%
ocarm	0.44%	0.44%	0.44%	0.44%
portmind	1.02%	1.02%	1.02%	1.02%
abbyy	0.38%	0.38%	0.38%	0.38%
google-vision	4.08%	4.08%	4.08%	4.08%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.93%	0.93%	0.93%	0.93%
tesseract	1.56%	1.56%	1.56%	1.56%
ocarm	0.25%	0.25%	0.25%	0.25%
portmind	1.49%	1.49%	1.49%	1.49%
abbyy	0.52%	0.52%	0.52%	0.52%
google-vision	4.08%	4.08%	4.08%	4.08%

10 page(s) in this group.

7-Dictionary

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	19.44%	19.44%	19.44%	19.44%
tesseract	19.73%	19.73%	19.73%	19.73%
ocarm	2.27%	2.27%	2.27%	2.27%
portmind	0.84%	0.84%	0.84%	0.84%
abbyy	15.18%	15.18%	15.18%	15.18%
google-vision	7.51%	7.51%	7.51%	7.51%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	23.10%	23.10%	23.10%	23.10%
tesseract	23.19%	23.19%	23.19%	23.19%
ocarm	2.20%	2.20%	2.20%	2.20%
portmind	0.84%	0.84%	0.84%	0.84%
abbyy	15.18%	15.18%	15.18%	15.18%
google-vision	15.24%	15.24%	15.24%	15.24%

10 page(s) in this group.

8-Dissertation

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	3.64%	3.50%	3.64%	3.50%
tesseract	4.53%	4.34%	4.53%	4.34%
ocarm	1.47%	1.37%	1.47%	1.37%
portmind	2.72%	2.59%	2.72%	2.59%
abbyy	4.48%	4.34%	4.48%	4.34%
google-vision	4.88%	4.74%	4.88%	4.74%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	3.79%	3.66%	3.79%	3.66%
tesseract	4.47%	4.32%	4.47%	4.32%
ocarm	1.47%	1.37%	1.47%	1.37%
portmind	2.72%	2.59%	2.72%	2.59%
abbyy	4.74%	4.60%	4.74%	4.60%
google-vision	4.94%	4.80%	4.94%	4.80%

10 page(s) in this group.

9-Fables

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	5.78%	5.78%	5.78%	5.78%
tesseract	34.81%	34.81%	34.81%	34.81%
ocarm	8.48%	8.48%	8.48%	8.48%
portmind	4.33%	4.33%	4.33%	4.33%
abbyy	35.08%	35.08%	35.08%	35.08%
google-vision	8.88%	8.88%	8.88%	8.88%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	6.10%	6.10%	6.10%	6.10%
tesseract	34.83%	34.83%	34.83%	34.83%
ocarm	8.40%	8.40%	8.40%	8.40%
portmind	31.53%	31.53%	31.53%	31.53%
abbyy	35.13%	35.13%	35.13%	35.13%
google-vision	8.93%	8.93%	8.93%	8.93%

10 page(s) in this group.

10-Gospel_Images

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	5.85%	5.85%	5.85%	5.85%
tesseract	8.42%	8.42%	8.42%	8.42%
ocarm	1.86%	1.86%	1.86%	1.86%
portmind	2.32%	2.32%	2.32%	2.32%
abbyy	5.24%	5.24%	5.24%	5.24%
google-vision	5.00%	5.00%	5.00%	5.00%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	5.49%	5.49%	5.49%	5.49%
tesseract	8.01%	8.01%	8.01%	8.01%
ocarm	1.86%	1.86%	1.86%	1.86%
portmind	11.92%	11.92%	11.92%	11.92%
abbyy	5.40%	5.40%	5.40%	5.40%
google-vision	4.74%	4.74%	4.74%	4.74%

10 page(s) in this group.

11-Gov_Decision

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	1.64%	1.29%	1.64%	1.29%
tesseract	2.39%	1.87%	2.39%	1.87%
ocarm	1.65%	1.05%	1.65%	1.05%
portmind	1.74%	1.17%	1.74%	1.17%
abbyy	2.32%	1.79%	2.32%	1.79%
google-vision	2.96%	2.99%	2.96%	2.99%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	3.01%	2.56%	3.01%	2.56%
tesseract	3.72%	3.14%	3.72%	3.14%
ocarm	1.65%	1.05%	1.65%	1.05%
portmind	14.36%	13.88%	14.36%	13.88%
abbyy	2.41%	1.88%	2.41%	1.88%
google-vision	3.13%	3.16%	3.13%	3.16%

10 page(s) in this group.

12-Gov_Program

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.30%	0.30%	0.30%	0.30%
tesseract	1.35%	1.35%	1.35%	1.35%
ocarm	0.17%	0.17%	0.17%	0.17%
portmind	0.16%	0.16%	0.16%	0.16%
abbyy	0.33%	0.33%	0.33%	0.33%
google-vision	2.26%	2.26%	2.26%	2.26%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.30%	0.30%	0.30%	0.30%
tesseract	1.35%	1.35%	1.35%	1.35%
ocarm	0.17%	0.17%	0.17%	0.17%
portmind	0.98%	0.98%	0.98%	0.98%
abbyy	0.33%	0.33%	0.33%	0.33%
google-vision	2.30%	2.30%	2.30%	2.30%

10 page(s) in this group.

13-History_Textbook

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	5.27%	5.27%	5.27%	5.27%
tesseract	5.93%	5.93%	5.93%	5.93%
ocarm	2.01%	2.01%	2.01%	2.01%
portmind	1.89%	1.89%	1.89%	1.89%
abbyy	3.81%	3.81%	3.81%	3.81%
google-vision	3.35%	3.35%	3.35%	3.35%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	9.11%	9.11%	9.11%	9.11%
tesseract	9.34%	9.34%	9.34%	9.34%
ocarm	2.02%	2.02%	2.02%	2.02%
portmind	11.85%	11.85%	11.85%	11.85%
abbyy	4.70%	4.70%	4.70%	4.70%
google-vision	3.67%	3.67%	3.67%	3.67%

10 page(s) in this group.

14-Human_Comedy

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	2.48%	2.48%	2.48%	2.48%
tesseract	10.95%	10.95%	10.95%	10.95%
ocarm	14.12%	14.12%	14.12%	14.12%
portmind	3.29%	3.29%	3.29%	3.29%
abbyy	7.28%	7.28%	7.28%	7.28%
google-vision	6.90%	6.90%	6.90%	6.90%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	2.46%	2.46%	2.46%	2.46%
tesseract	10.91%	10.91%	10.91%	10.91%
ocarm	14.15%	14.15%	14.15%	14.15%
portmind	7.55%	7.55%	7.55%	7.55%
abbyy	7.30%	7.30%	7.30%	7.30%
google-vision	7.03%	7.03%	7.03%	7.03%

10 page(s) in this group.

15-Jonathan_Livingston

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.94%	0.94%	0.94%	0.94%
tesseract	0.62%	0.62%	0.62%	0.62%
ocarm	0.96%	0.96%	0.96%	0.96%
portmind	0.44%	0.44%	0.44%	0.44%
abbyy	1.00%	1.00%	1.00%	1.00%
google-vision	3.28%	3.28%	3.28%	3.28%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.65%	0.65%	0.65%	0.65%
tesseract	0.33%	0.33%	0.33%	0.33%
ocarm	0.96%	0.96%	0.96%	0.96%
portmind	21.27%	21.27%	21.27%	21.27%
abbyy	1.00%	1.00%	1.00%	1.00%
google-vision	3.27%	3.27%	3.27%	3.27%

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16-OSCE_Report

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.70%	0.68%	0.70%	0.68%
tesseract	1.74%	1.71%	1.74%	1.71%
ocarm	0.95%	0.95%	0.95%	0.95%
portmind	0.60%	0.60%	0.60%	0.60%
abbyy	1.88%	1.88%	1.88%	1.88%
google-vision	2.85%	2.84%	2.85%	2.84%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.93%	0.89%	0.93%	0.89%
tesseract	1.87%	1.83%	1.87%	1.83%
ocarm	0.96%	0.96%	0.96%	0.96%
portmind	17.38%	17.39%	17.38%	17.39%
abbyy	2.11%	2.07%	2.11%	2.07%
google-vision	2.90%	2.88%	2.90%	2.88%

10 page(s) in this group.

17-Order

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	1.29%	1.29%	1.29%	1.29%
tesseract	2.30%	2.30%	2.30%	2.30%
ocarm	0.60%	0.60%	0.60%	0.60%
portmind	0.77%	0.77%	0.77%	0.77%
abbyy	0.16%	0.16%	0.16%	0.16%
google-vision	2.03%	2.03%	2.03%	2.03%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	0.58%	0.58%	0.58%	0.58%
tesseract	1.08%	1.08%	1.08%	1.08%
ocarm	0.60%	0.60%	0.60%	0.60%
portmind	18.92%	18.92%	18.92%	18.92%
abbyy	0.16%	0.16%	0.16%	0.16%
google-vision	2.05%	2.05%	2.05%	2.05%

10 page(s) in this group.

18-Poetry

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	1.47%	1.47%	1.47%	1.47%
tesseract	0.99%	0.99%	0.99%	0.99%
ocarm	1.70%	1.70%	1.70%	1.70%
portmind	0.84%	0.84%	0.84%	0.84%
abbyy	1.05%	1.05%	1.05%	1.05%
google-vision	4.68%	4.68%	4.68%	4.68%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	1.47%	1.47%	1.47%	1.47%
tesseract	0.99%	0.99%	0.99%	0.99%
ocarm	1.68%	1.68%	1.68%	1.68%
portmind	4.17%	4.17%	4.17%	4.17%
abbyy	1.05%	1.05%	1.05%	1.05%
google-vision	4.68%	4.68%	4.68%	4.68%

10 page(s) in this group.

19-Police_Order

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	1.94%	1.94%	1.89%	1.89%
tesseract	1.77%	1.77%	1.72%	1.72%
ocarm	1.01%	1.01%	0.99%	0.99%
portmind	2.42%	2.42%	2.37%	2.37%
abbyy	0.96%	0.96%	0.91%	0.91%
google-vision	4.65%	4.65%	4.62%	4.62%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	1.87%	1.87%	1.82%	1.82%
tesseract	1.71%	1.71%	1.66%	1.66%
ocarm	1.09%	1.09%	1.06%	1.06%
portmind	14.40%	14.40%	14.36%	14.36%
abbyy	0.96%	0.96%	0.91%	0.91%
google-vision	4.65%	4.65%	4.62%	4.62%

10 page(s) in this group.

20-Prayer

Document structure-independent models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	20.99%	20.99%	20.99%	20.99%
tesseract	27.86%	27.86%	27.86%	27.86%
ocarm	7.80%	7.80%	7.80%	7.80%
portmind	4.07%	4.07%	4.07%	4.07%
abbyy	10.73%	10.73%	10.73%	10.73%
google-vision	8.82%	8.82%	8.82%	8.82%

Document structure-aware models

Model	w/o filters	filter non-Armenian	filter graphics & headers	filter all
hye_tesseract	21.12%	21.12%	21.12%	21.12%
tesseract	27.99%	27.99%	27.99%	27.99%
ocarm	8.44%	8.44%	8.44%	8.44%
portmind	7.08%	7.08%	7.08%	7.08%
abbyy	10.73%	10.73%	10.73%	10.73%
google-vision	8.51%	8.51%	8.51%	8.51%

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Acknowledgements

The research was supported by the Higher Education and Science Committee of MESCS RA (Research project № 27TARGET-6B173).