Files
semantica/cookbook/basic_examples/web_scraping_example.py
T
KaifAhmad1 aa10b9434c feat: Implement comprehensive Semantica framework structure
- Add complete libs/semantica framework with 20+ production-ready modules
- Implement core orchestration, configuration, and plugin management
- Add comprehensive data ingestion (files, web, streams, databases, emails)
- Implement parsing for documents, web content, structured data, code, media
- Add data normalization (text, entities, dates, numbers, quality)
- Implement semantic extraction (NER, relations, events, coreference, triples)
- Add ontology management and knowledge graph construction
- Implement graph analytics (centrality, community detection, connectivity)
- Add embeddings generation and vector store management
- Implement pipeline orchestration and streaming processing
- Add security (access control, data masking, PII redaction)
- Implement quality assurance and validation systems
- Add export capabilities (RDF, JSON, CSV, graph formats)
- Create comprehensive cookbook with examples and use cases
- Add basic examples (document processing, web scraping, knowledge graphs)
- Add advanced examples (multi-modal processing, real-time analytics)
- Implement detailed bullet-point comments throughout
- Follow SDK best practices and Python-only implementation
- Add comprehensive pyproject.toml with dependencies and configuration
- Include detailed README with usage examples and documentation

This commit establishes the complete foundation for the Semantica
semantic layer and knowledge engineering framework.
2025-10-22 22:47:05 +05:30

267 lines
8.2 KiB
Python

"""
Web Scraping Example
This example demonstrates how to scrape web content and build knowledge bases using Semantica.
Key Features Demonstrated:
- Web content scraping and crawling
- HTML content parsing and cleaning
- Web content normalization
- Entity extraction from web content
- Relationship detection in web content
- Knowledge base construction from web data
Use Cases:
- News article processing
- Blog post analysis
- Website content extraction
- Social media content processing
- E-commerce product information extraction
"""
class WebScrapingExample:
"""
Web scraping example implementation.
This example shows how to:
• Scrape web content from various sources
• Parse HTML content and extract text
• Normalize and clean web content
• Extract entities and relationships
• Build knowledge bases from web data
• Handle different web content types
"""
def __init__(self):
"""
Initialize web scraping example.
• Setup Semantica framework
• Configure web scraping tools
• Initialize content parsing
• Setup knowledge extraction
• Configure export handlers
"""
# TODO: Initialize Semantica framework
# TODO: Setup WebIngestor for web scraping
# TODO: Configure HTML parsing
# TODO: Setup content normalization
# TODO: Initialize entity extraction
# TODO: Setup relationship detection
pass
def scrape_website(self, website_url, **options):
"""
Scrape content from a website.
• Scrape web content from specified URL
• Parse HTML content and extract text
• Normalize and clean content
• Extract entities and relationships
• Build knowledge base
• Export results
Args:
website_url: URL of website to scrape
**options: Scraping options
Returns:
dict: Scraping results including knowledge base
"""
# TODO: Use WebIngestor to scrape website
# TODO: Parse HTML content using WebParser
# TODO: Normalize content using TextNormalizer
# TODO: Extract entities using NamedEntityRecognizer
# TODO: Extract relationships using RelationExtractor
# TODO: Build knowledge base
# TODO: Return scraping results
pass
def scrape_multiple_pages(self, page_urls, **options):
"""
Scrape content from multiple web pages.
• Scrape multiple pages concurrently
• Process each page individually
• Aggregate results from all pages
• Build comprehensive knowledge base
Args:
page_urls: List of page URLs to scrape
**options: Scraping options
Returns:
dict: Aggregated scraping results
"""
# TODO: Use WebIngestor to scrape multiple pages
# TODO: Process each page concurrently
# TODO: Aggregate results from all pages
# TODO: Build comprehensive knowledge base
# TODO: Return aggregated results
pass
def scrape_with_sitemap(self, sitemap_url, **options):
"""
Scrape website using sitemap.
• Parse sitemap to get page URLs
• Scrape all pages in sitemap
• Process sitemap structure
• Build comprehensive knowledge base
Args:
sitemap_url: URL of website sitemap
**options: Scraping options
Returns:
dict: Sitemap-based scraping results
"""
# TODO: Use SitemapCrawler to parse sitemap
# TODO: Extract page URLs from sitemap
# TODO: Scrape all pages in sitemap
# TODO: Process sitemap structure
# TODO: Build comprehensive knowledge base
# TODO: Return sitemap-based results
pass
def process_news_articles(self, news_urls, **options):
"""
Process news articles from web sources.
• Scrape news article content
• Extract article metadata
• Process article text content
• Extract entities and relationships
• Build news knowledge base
Args:
news_urls: List of news article URLs
**options: News processing options
Returns:
dict: News processing results
"""
# TODO: Scrape news article content
# TODO: Extract article metadata (title, date, author)
# TODO: Process article text content
# TODO: Extract entities and relationships
# TODO: Build news knowledge base
# TODO: Return news processing results
pass
def process_blog_posts(self, blog_urls, **options):
"""
Process blog posts from web sources.
• Scrape blog post content
• Extract post metadata
• Process post text content
• Extract entities and relationships
• Build blog knowledge base
Args:
blog_urls: List of blog post URLs
**options: Blog processing options
Returns:
dict: Blog processing results
"""
# TODO: Scrape blog post content
# TODO: Extract post metadata (title, date, author, tags)
# TODO: Process post text content
# TODO: Extract entities and relationships
# TODO: Build blog knowledge base
# TODO: Return blog processing results
pass
def extract_web_entities(self, web_content, **options):
"""
Extract entities from web content.
• Process web content for entity extraction
• Extract named entities
• Classify entity types
• Handle entity disambiguation
Args:
web_content: Web content to process
**options: Entity extraction options
Returns:
dict: Entity extraction results
"""
# TODO: Use NamedEntityRecognizer to extract entities
# TODO: Classify entity types
# TODO: Handle entity disambiguation
# TODO: Return entity extraction results
pass
def extract_web_relationships(self, web_content, entities, **options):
"""
Extract relationships from web content.
• Process web content for relationship extraction
• Extract relationships between entities
• Classify relationship types
• Handle relationship disambiguation
Args:
web_content: Web content to process
entities: Extracted entities
**options: Relationship extraction options
Returns:
dict: Relationship extraction results
"""
# TODO: Use RelationExtractor to extract relationships
# TODO: Classify relationship types
# TODO: Handle relationship disambiguation
# TODO: Return relationship extraction results
pass
def run_web_scraping_example():
"""
Run the web scraping example.
This function demonstrates the complete web scraping workflow.
"""
# TODO: Create WebScrapingExample instance
# TODO: Define website URLs to scrape
# TODO: Scrape website content
# TODO: Extract knowledge from web content
# TODO: Export results
# TODO: Display results
pass
def run_news_scraping_example():
"""
Run news article scraping example.
This function demonstrates news article processing.
"""
# TODO: Create WebScrapingExample instance
# TODO: Define news article URLs
# TODO: Scrape news articles
# TODO: Extract knowledge from news
# TODO: Export news processing results
# TODO: Display results
pass
def run_blog_scraping_example():
"""
Run blog post scraping example.
This function demonstrates blog post processing.
"""
# TODO: Create WebScrapingExample instance
# TODO: Define blog post URLs
# TODO: Scrape blog posts
# TODO: Extract knowledge from blog posts
# TODO: Export blog processing results
# TODO: Display results
pass