Berbagi teknologi

Analisis alat sumber terbuka untuk mengonversi PDF ke Markdown

2024-07-12

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Marker: Analisis alat sumber terbuka untuk mengonversi PDF ke Markdown
Marker adalah proyek sumber terbuka yang dikembangkan di GitHub oleh Vik Paruchuri. Fungsi intinya adalah mengonversi file PDF ke format Markdown. Berikut adalah analisis detail proyek Marker:

Ulasan Proyek:

Tautan proyek: https://github.com/VikParuchuri/marker.git
Dikelola oleh: Vik Paruchuri
Fitur utama: Konversi PDF ke format Markdown dengan cepat dan akurat, mendukung berbagai jenis dokumen, terutama buku dan karya ilmiah.

Fitur Teknik:

Model pembelajaran mendalam: Marker menggunakan serangkaian model pembelajaran mendalam untuk mengekstrak teks, mendeteksi tata letak halaman, membersihkan dan memformat blok teks, dan akhirnya menggabungkannya ke dalam dokumen Markdown.
Dukungan OCR: Untuk skenario yang memerlukan OCR, Marker mendukung penggunaan alat OCR seperti Surya dan Tesseract untuk memastikan keakuratan ekstraksi teks.
Dukungan multi-platform: Marker dapat berjalan pada GPU, CPU atau MPS untuk memenuhi kebutuhan lingkungan perangkat keras yang berbeda.

Detail fitur:

Pemrosesan dokumen: Mendukung penghapusan header, footer, dan kotoran lainnya, memformat tabel dan blok kode, mengekstraksi dan menyimpan gambar.
Dukungan bahasa: Marker mendukung semua bahasa, dan pengguna dapat mengoptimalkan efek OCR dengan menentukan daftar bahasa.
Konversi persamaan: Mampu mengonversi sebagian besar persamaan ke format LaTeX, sehingga memudahkan penyematan rumus matematika dalam dokumen Markdown.

Pertunjukan:

Kecepatan dan Akurasi: Marker unggul dalam kecepatan dan akurasi, memberikan keunggulan yang signifikan terutama jika dibandingkan dengan alat lain seperti nougat.
Penggunaan sumber daya: Saat dijalankan pada A6000 Ada, setiap tugas menggunakan rata-rata sekitar 4 GB VRAM, mendukung pemrosesan paralel beberapa dokumen.

panduan pengguna:

Instalasi: Pengguna perlu menginstal paket marker-pdf melalui pip

pip install marker-pdf 


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(GraphRAG) PS D:python-workspaceGraphRAG> pip install marker-pdf 
Looking in indexes: https://mirrors.aliyun.com/pypi/simple/
Collecting marker-pdf
  Downloading https://mirrors.aliyun.com/pypi/packages/05/c1/782f56407ea60bd35c127c829b8e43da99a0da41f6c9ee002cab97e430c5/marker_pdf-0.2.15-py3-none-any.whl (63 kB)
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Collecting tokenizers<0.20,>=0.19 (from transformers<5.0.0,>=4.36.2->marker-pdf)
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Installing collected packages: wcwidth, tbb, mpmath, intel-openmp, tabulate, sympy, safetensors, rapidfuzz, pypdfium2
, opencv-python, mkl, MarkupSafe, ftfy, filelock, jinja2, huggingface-hub, torch, tokenizers, pydantic-settings, transformers, pdftext, texify, surya-ocr, marker-pdf
Successfully installed MarkupSafe-2.1.5 filelock-3.15.4 ftfy-6.2.0 huggingface-hub-0.23.4 intel-openmp-2021.4.0 jinja2-3.1.4 marker-pdf-0.2.15 mkl-2021.4.0 mpmath-1.3.0 opencv-python-4.10.0.84 pdftext-0.3.10 pydantic-settings-2.3.4 pypdfium2-4.30.0 rapidfuzz-3.9.4 safetensors-0.4.3 surya-ocr-0.4.14 sympy-1.12.1 tabulate-0.9.0 tbb-2021.13.0 texify-0.1.10 tokenizers-0.19.1 torch-2.3.1 transformers-4.42.3 wcwidth-0.2.13


使用示例：

```bash
(GraphRAG) PS D:python-workspaceGraphRAG> marker_single GPT.pdf ./folder --batch_multiplier 2 --max_pages 52 --langs English
config.json: 100%|█████████████████████████████████████████████████████████████████████| 1.18k/1.18k [00:00<?, ?B/s] 
model.safetensors: 100%|█████████████████████████████████████████████████████████| 120M/120M [00:07<00:00, 16.7MB/s] 
Loaded detection model vikp/surya_det2 on device cpu with dtype torch.float32
preprocessor_config.json: 100%|████████████████████████████████████████████████████████████| 430/430 [00:00<?, ?B/s] 
config.json: 100%|█████████████████████████████████████████████████████████████████████| 1.57k/1.57k [00:00<?, ?B/s] 
model.safetensors: 100%|█████████████████████████████████████████████████████████| 120M/120M [00:06<00:00, 18.0MB/s] 
Loaded detection model vikp/surya_layout2 on device cpu with dtype torch.float32
preprocessor_config.json: 100%|████████████████████████████████████████████████████████████| 430/430 [00:00<?, ?B/s] 
config.json: 100%|█████████████████████████████████████████████████████████████████████| 5.04k/5.04k [00:00<?, ?B/s] 
model.safetensors: 100%|█████████████████████████████████████████████████████████| 550M/550M [00:34<00:00, 16.2MB/s] 
generation_config.json: 100%|██████████████████████████████████████████████████████████████| 160/160 [00:00<?, ?B/s] 
Loaded reading order model vikp/surya_order on device cpu with dtype torch.float32
preprocessor_config.json: 100%|████████████████████████████████████████████████████████████| 684/684 [00:00<?, ?B/s] 
config.json: 100%|█████████████████████████████████████████████████████████████| 6.91k/6.91k [00:00<00:00, 6.82MB/s] 
model.safetensors: 100%|███████████████████████████████████████████████████████| 1.05G/1.05G [01:04<00:00, 16.2MB/s] 
generation_config.json: 100%|██████████████████████████████████████████████████████████████| 181/181 [00:00<?, ?B/s]
Loaded recognition model vikp/surya_rec on device cpu with dtype torch.float32
preprocessor_config.json: 100%|█████████████████████████████████████████████████████| 608/608 [00:00<00:00, 605kB/s]
config.json: 100%|█████████████████████████████████████████████████████████████████████| 4.92k/4.92k [00:00<?, ?B/s]
model.safetensors: 100%|█████████████████████████████████████████████████████████| 625M/625M [00:38<00:00, 16.4MB/s]
generation_config.json: 100%|██████████████████████████████████████████████████████████████| 191/191 [00:00<?, ?B/s]
Loaded texify model to cpu with torch.float32 dtype
preprocessor_config.json: 100%|████████████████████████████████████████████████████████████| 617/617 [00:00<?, ?B/s]
tokenizer_config.json: 100%|███████████████████████████████████████████████████████████| 4.49k/4.49k [00:00<?, ?B/s]
tokenizer.json: 100%|██████████████████████████████████████████████████████████| 2.14M/2.14M [00:00<00:00, 2.85MB/s]
added_tokens.json: 100%|███████████████████████████████████████████████████████████████| 18.3k/18.3k [00:00<?, ?B/s]
special_tokens_map.json: 100%|█████████████████████████████████████████████████████| 552/552 [00:00<00:00, 6.29MB/s] 
Detecting bboxes: 100%|███████████████████████████████████████████████████████████████| 7/7 [05:49<00:00, 49.99s/it] 
Recognizing Text: 100%|███████████████████████████████████████████████████████████████| 1/1 [00:11<00:00, 11.37s/it] 
Detecting bboxes: 100%|███████████████████████████████████████████████████████████████| 5/5 [05:32<00:00, 66.45s/it] 
Finding reading order: 100%|██████████████████████████████████████████████████████████| 5/5 [03:15<00:00, 39.04s/it] 
Saved markdown to the ./folderGPT folder


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配置：用户可以通过环境变量或配置文件调整Marker的行为，如设置OCR引擎、指定GPU设备、配置内存使用等。
命令行工具：Marker提供了命令行工具，允许用户以批处理方式转换单个或多个PDF文件。




商业使用与许可：

商业限制：虽然研究和个人使用是免费的，但商业使用受到一定限制。模型权重采用cc-by-nc-sa-4.0许可证，但作者为符合条件的小型组织提供了许可证豁免。
双许可选项：对于需要去除GPL许可证要求或超出收入限制的商业用户，提供了双许可选项。


社区与支持：

Discord社区：用户可以在Discord上讨论Marker的未来开发和其他相关问题。
文档与示例：GitHub仓库提供了详细的文档和示例，帮助用户快速上手。



总结：
Marker是一个功能强大、易于使用的PDF转Markdown工具，通过深度学习模型和OCR技术的结合，实现了高效且准确的文档转换。它不仅支持多种文档类型和语言，还提供了丰富的配置选项和命令行工具，满足了不同用户的需求。同时，Marker的社区支持和文档也非常完善，为用户提供了良好的使用体验。

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Profil pribadi

Ia telah mengabdikan dirinya untuk meneliti teknologi selama lebih dari 30 tahun, dan mahir dalam berbagai bahasa seperti java, linux, javascript, php, css, dll. "Saya telah memberikan banyak kontribusi di bidang dokumentasi pengembang stasiun sumber terbuka untuk berbagi beberapa masalah dalam pengembangan teknologi untuk referensi di masa mendatang. Semua orang memeriksanya

informasi kontak saya

Surat