【Document Intelligent Processing Series · 2】 Document format parsing and preprocessing technology

## Gabatarwa Tsarin tsarin takardu da preprocessing sune ƙofofi na farko zuwa sarrafa takardu masu hankali, wanda ke ƙayyade inganci da tasirin sarrafawa na gaba. Takardu a cikin daban-daban Formats suna da daban-daban ciki tsarin da encoding hanyoyin, da kuma dace parsing dabarun da ake bukata. Wannan labarin zai samar da gabatarwa mai zurfi ga ka'idodin parsing da kuma dabarun sarrafawa na tsarin takardu na yau da kullun. ## PDF document parsing technology ### PDF document structure analysis ** PDF Internals **: - Document header: Contains PDF version information - Object Table: Yana adana abubuwa daban-daban a cikin daftarin aiki - Tebur na giciye : Rubuta bayanan wuri na abu - Document Tail: Ya ƙunshi tushen abu da bayanan ɓoye ** Tsarin Parsing **: 1. Karanta rubutun daftarin aiki don ƙayyade sigar PDF 2. Nemo teburin giciye don samun ƙididdigar abu 3. Parse shafi abubuwa da kuma cire shafi abun ciki 4. Kula da font da bayanan encoding 5. Sake fasalin tsarin daftarin aiki ### Dabarun Cire Rubutu * Character Encoding Processing **: - Unicode Encoding: Kula da haruffa masu yawa - Taswirar font: Canza rubutun rubutu zuwa Unicode - Haruffa masu haɗari: Riƙe ligatures da haruffa na musamman - Code Detection: Ta atomatik gane daftarin aiki encoding ** Hanyar Sake Gyara Rubutu **: - Halin Matsayi: Ƙayyade matsayin daidaitawa na kowane hali - Gane layi: Haɗa haruffa a cikin layin rubutu - Paragraph Segmentation: Identify paragraph boundaries and hierarchies - Tsarin karatu: Ƙayyade tsari mai ma'ana na rubutun ### Hoton da tebur ** Cire hoto **: - Image Object Recognition: Nemo hoto abubuwa a cikin PDFs - Format Conversion: Converts PDF images to standard formats - Metadata extraction: Samun bayanin halayen hotuna - Bayanin wuri: Rubuta matsayin hoton a cikin shafin ** Form Identification **: - Tebur Iyakar Bincike: Gano iyakokin waje na tebur - Cell Splitting: Raba tebur zuwa mutum sel - Cire abun ciki: cire abubuwan da ke cikin kowane tantanin halitta - Tsarin Gyare-gyare: Sake gina ginshiƙan ginshiƙai na tebur ## Fasahar Kalmar Kalmar Kalmar ### Binciken tsarin DOCX ** Tsarin Takaddun **: - document.xml: Babban abun ciki - styles.xml: Style definition - numbering.xml: Tsarin ƙididdigar ƙididdiga - dangantaka: Dangantakar daftarin aiki ** Matakan Parsing **: 1. Cire fayil ɗin DOCX don samun fayil ɗin XML 2. Parse document.xml da cire abun ciki na takardun 3. Kula da bayanin salo da kuma kula da tsari 4. Bincika abubuwa da hotuna da aka saka 5. Sake gina tsarin daftarin aiki ### Yadda za a yi amfani da kayan aiki da kayan aiki ** Cirewar Bayanin Salon **: - Character styles: font, size, color, etc - Paragraph style: alignment, indentation, spacing, etc - Jerin salo: lambobi, harsashi, da dai sauransu - Salon tebur: iyakoki, baya, daidaitawa, da dai sauransu ** Tsarin Tsarin **: - Taswirar Style: Taswirar Kalmar zuwa daidaitattun tsare-tsaren - Hierarchy Keeping: Kula da hierarchy na takardu - Format Inheritance: Yana kula da gado na salo - Compatibility Handling: Handling compatibility tare da daban-daban versions ### Embed object handling ** Tsarin hoto **: - Image extraction: Extract embedded images from documents - Format Recognition: Gano tsari da halaye na hoton - Lissafin matsayi: Ƙayyade matsayin hoton a cikin daftarin aiki - Citation Relationship: Kafa dangantaka tsakanin hotuna da rubutu ** Sauran Abubuwa **: - Tables: Extract table structures and data - Charts: Rike da abubuwan ginshiƙi da aka saka - Formulas: Extract mathematical formulas and symbols - Hyperlinks: Kula da bayanin haɗi a cikin takardu ## Image Document Preprocessing ### Image Quality Assessment ** Alamun Ingancin **: - Ƙuduri: Pixel density na hoton - Bambanci: Matakin chiaroscuro na hoton - Bayyanawa: Yaya hoton yake da kaifi - Noise level: Matakin amo a cikin hoton ** Hanyar kimantawa **: - Statistical Analysis: Lissafin siffofin ƙididdigar hoton - Frequency domain analysis: Analyze the frequency characteristics of the image - Edge Detection: Evaluates the edge quality of the image - Machine Learning: Kimanta ingancin hoto ta amfani da samfura ### Image Enhancement Techniques ** Bambancin haɓaka **: - Histogram Equalization: Inganta rarraba bambancin hotuna - Daidaitawa Daidaitacce: Inganta bambancin gida - Gamma gyare-gyare: Daidaita hasken haske na hoton - Bambancin shimfiɗawa: Faɗaɗa kewayon hoto ** Cire amo **: - Gaussian Filtering: Ya kawar da hayaniya na Gaussian - Matsakaicin tacewa: yana cire gishiri da sautin barkono - Bilateral tacewa: gefen kariya da kuma amo cire - Wavelet Denoising: Denoising dangane da canjin wavelet ### Gyara Geometry ** Gyara Tilt **: - Hough Transform: Gano madaidaiciyar layi a cikin hoton - Tsinkaye hanya: Tilt kusurwa ganowa bisa tsinkaya - Gano gefe: Gyara skew tare da bayanan gefe - Ilmantarwa mai zurfi: Yana amfani da cibiyoyin sadarwa na neural don gano skew **Gyara Hangen nesa**: - Gyara maki huɗu: canjin hangen nesa dangane da kusurwa huɗu - Linear Correction: Yi amfani da layi ɗaya don gyara - Mesh Correction: Mesh-based deformation correction - Auto-gyare-gyare: Ta atomatik ganowa da kuma gyara hangen nesa deformation ## Tsarin Tsarin Tsarin T ### Layout Analysis ** Yankin Yanki **: - Connectivity component analysis: segmentation based on pixel connectivity - Projection segmentation: Area segmentation based on projection - Morphological Operation: Segmentation ta amfani da hanyoyin morphological - Ilmantarwa mai zurfi: Rarrabuwa ta amfani da cibiyoyin sadarwar neural ** Rarraba Yanki **: - Yankin Rubutu: Yankin da ya ƙunshi rubutun - Yankin hoto: Yankin da ke dauke da hoton - Yankin tebur: Yankin da ya ƙunshi tebur - Yankin baya: Blank ko kayan ado ### An ƙaddara umarnin karatu ** Dokokin Umarni **: - Daga hagu zuwa dama: Halayen karatu a cikin harsunan Yammacin Turai - Daga sama zuwa ƙasa: tsari na karatu a tsaye - Multi-ginshiƙai sarrafawa: Gudanar da karatu tsari na Multi-Column layout - Special Layouts: Deal with irregular layouts ** Aiwatar da Algorithm **: - Doka-tushen doka: Yi amfani da dokoki da aka riga aka ƙayyade don ƙayyade tsari - Graph Theory Method: Model the layout as a graph structure - Koyon inji: Amfani da samfura don hango umarnin karatu - Hybrid Approach: Haɗa fa'idodin hanyoyi da yawa ## Ingancin Inganci da Ingantawa ### Parsing quality assessment ** Binciken Mutunci **: - Mutuncin abun ciki: Bincika abubuwan da suka ɓace - Tsarin Tsarin: Tabbatar da daidaito na tsarin daftarin aiki - Tsarin Mutunci: Tabbatar da tsarin bayanin da aka kiyaye - Mutuncin Dangantaka: Bincika daidaito na dangantaka tsakanin abubuwa ** Tabbatar da daidaito **: - Text Accuracy: Tabbatar da daidaito na rubutu extraction - Matsayi daidai: Duba daidaito na sanya abubuwa - Daidaito na tsarawa: Tabbatar da daidaito na bayanan tsarawa - Tsarin tsari: Bincika daidaito na tsarin daftarin aiki ### Inganta Aiki ** Inganta Saurin sarrafawa **: - Parallel Processing: Yana amfani da CPUs masu yawa don sarrafawa iri ɗaya - Memory Optimization: Rage ƙwaƙwalwar ajiya da samun dama - Algorithm Optimization: Yi amfani da ingantattun algorithms - Caching Mechanism: Caching commonly used processing results ** Inganta Amfani da Albarkatu **: - Memory Management: Sarrafa memory amfani da hikima - Amfani da CPU: Inganta ingantaccen amfani da CPU Ingantaccen Ajiya: Rage amfani da fayilolin wucin gadi - Inganta cibiyar sadarwa: Inganta ingantaccen watsa shirye-shiryen cibiyar sadarwa ## Aikace-aikacen Aikace- ### Gudanar da Takaddun Kasuwanci ** Aikace-aikacen aikace-aikace **: - Gudanar da kwangila: Parsing da sarrafa kwangilar kamfanoni - Gudanar da rahoto: Kula da nau'ikan rahotannin kasuwanci daban-daban - Digitize Archives: Digitize paper archives - Knowledge Management: Gina wani enterprise ilmi tushe ** Bukatun fasaha **: - Babban daidaito: Yana tabbatar da daidaito a cikin hakar bayanai - Batch Processing: Yana tallafawa manyan sarrafa takardu - Format Compatibility: Yana goyon bayan da fadi da kewayon takardun Formats - Tsaro: Tabbatar da tsaro na sarrafa takardu ### Laburaren Dijital ** Aikace-aikacen aikace-aikace **: - Digitization na tsoffin littattafai: Canza tsoffin littattafai zuwa tsarin dijital - Journal Processing: Kula da mujallu na ilimi da takardu - Binciken littafi: Gina tsarin dawo da abun ciki na littafin - Knowledge Discovery: Discover knowledge from literature ** Kalubalen fasaha **: - Takaddun tarihi: Yi ma'amala da takardun da suka tsufa - Harsuna da yawa: Yana tallafawa sarrafawa a cikin harsuna da yawa - Complex Layouts: Handle complex layouts - Babban sikelin: Kula da adadi mai yawa na bayanan daftarin aiki ## Summary Tsarin tsarin takardu da fasahar preprocessing shine tushen sarrafa takardu mai hankali, wanda ke shafar kai tsaye inganci da tasirin sarrafawa na gaba. Ta hanyar zurfafa fahimtar halaye na daban-daban Formats, ta yin amfani da dace parsing dabarun, da kuma hada ingantattun preprocessing hanyoyin, high-quality shigarwa za a iya samar da m aiki sarrafa kaifin baki. ** Key Takeaways**: - Daban-daban Formats bukatar daban-daban parsing dabarun - Ingancin pretreatment kai tsaye yana shafar tasirin magani na gaba - Ingancin maganin shine mabuɗin don tabbatar da ingancin magani. - Inganta aiki yana da mahimmanci ga manyan aikace-aikace ** Shawarwarin fasaha **: - Samun zurfin fahimta game da ayyukan ciki na tsarin takardun shaida - An mayar da hankali kan bincike da aikace-aikacen fasahar pretreatment - Kafa tsarin kula da ingancin sauti - Ci gaba da haɓaka aikin sarrafawa da inganci