Web Scraping Introduction. It will cover cover all the most available libraries and the way they can be handled to scrape our required data. Created by Littin Rajan
This document provides an agenda and recap for an Advance Python training on web scraping and data analysis. The agenda includes introducing HTML tag familiarization, the data scraping process, and file reading/writing. It also recaps classes, inheritance, and an activity on creating classes. The document then covers introducing web scraping, libraries for scraping (Beautifulsoup4, lxml, requests, html5lib), basic HTML tags, inspecting elements, scraping rules, and practices scraping data from websites and writing to files.
This document summarizes the contents of the book "Python Web Scraping Second Edition". The book covers techniques for extracting data from websites using the Python programming language. It teaches how to crawl websites, scrape data from pages, handle dynamic content, cache downloads, solve CAPTCHAs, and use libraries like Scrapy. The goal is to provide readers with hands-on skills for scraping and crawling data using popular Python modules.
The webinar will present the SemaGrow demonstrator “Web Crawler + AgroTagger”, in order to collect feedback, ideas and comments about the status of the development and how the demonstrator helps to overcome data problems.
SemaGrow is a project funded by the Seventh Framework Programme (FP7) of the European Commission, aiming at developing algorithms, infrastructures and methodologies to cope with large data volumes and real time performance.
In this context, FAO is providing a component than can be used to crawl the Web, giving a meaning to discovered resources by using the AgroTagger, which can assign some AGROVOC URIs to resources gathered by a Web crawler.
The demonstrator is publicly available at https://github.com/agrisfao/agrotagger.
Web crawling involves automated programs called crawlers or spiders that browse the web methodically to index web pages for search engines. Crawlers start from seed URLs and extract links from visited pages to discover new pages, repeating the process until a desired size or time limit is reached. Crawlers are used by search engines to build indexes of web content and ensure freshness through revisiting URLs. Challenges include the web's large size, fast changes, and dynamic content generation. APIs allow programmatic access to web services and information through REST, HTTP POST, and SOAP.
Frontera-Open Source Large Scale Web Crawling Frameworksixtyone
Frontera is an open source web crawling framework that can be used for both single-threaded and distributed crawling. It was developed to address limitations in Scrapy for broad crawls and crawl frontier management. Frontera uses Apache Kafka as a communication layer between components and supports storage backends like Apache HBase. It integrates with Scrapy for process management and page fetching. Frontera provides features for crawl scheduling, URL ordering strategies, and distributed coordination of crawls across multiple spiders and worker processes.
The document discusses two Ruby gems, Ashikawa::Core and Ashikawa::AR, that provide an interface to the ArangoDB database. Ashikawa::Core provides a low-level driver that abstracts ArangoDB's REST interface, while Ashikawa::AR implements an Active Record pattern for integrating ArangoDB with Rails applications. The document also briefly mentions plans to develop a DataMapper interface (Ashikawa::DataMapper) to support various data sources including ArangoDB.
This document provides an agenda and recap for an Advance Python training on web scraping and data analysis. The agenda includes introducing HTML tag familiarization, the data scraping process, and file reading/writing. It also recaps classes, inheritance, and an activity on creating classes. The document then covers introducing web scraping, libraries for scraping (Beautifulsoup4, lxml, requests, html5lib), basic HTML tags, inspecting elements, scraping rules, and practices scraping data from websites and writing to files.
This document summarizes the contents of the book "Python Web Scraping Second Edition". The book covers techniques for extracting data from websites using the Python programming language. It teaches how to crawl websites, scrape data from pages, handle dynamic content, cache downloads, solve CAPTCHAs, and use libraries like Scrapy. The goal is to provide readers with hands-on skills for scraping and crawling data using popular Python modules.
The webinar will present the SemaGrow demonstrator “Web Crawler + AgroTagger”, in order to collect feedback, ideas and comments about the status of the development and how the demonstrator helps to overcome data problems.
SemaGrow is a project funded by the Seventh Framework Programme (FP7) of the European Commission, aiming at developing algorithms, infrastructures and methodologies to cope with large data volumes and real time performance.
In this context, FAO is providing a component than can be used to crawl the Web, giving a meaning to discovered resources by using the AgroTagger, which can assign some AGROVOC URIs to resources gathered by a Web crawler.
The demonstrator is publicly available at https://github.com/agrisfao/agrotagger.
Web crawling involves automated programs called crawlers or spiders that browse the web methodically to index web pages for search engines. Crawlers start from seed URLs and extract links from visited pages to discover new pages, repeating the process until a desired size or time limit is reached. Crawlers are used by search engines to build indexes of web content and ensure freshness through revisiting URLs. Challenges include the web's large size, fast changes, and dynamic content generation. APIs allow programmatic access to web services and information through REST, HTTP POST, and SOAP.
Frontera-Open Source Large Scale Web Crawling Frameworksixtyone
Frontera is an open source web crawling framework that can be used for both single-threaded and distributed crawling. It was developed to address limitations in Scrapy for broad crawls and crawl frontier management. Frontera uses Apache Kafka as a communication layer between components and supports storage backends like Apache HBase. It integrates with Scrapy for process management and page fetching. Frontera provides features for crawl scheduling, URL ordering strategies, and distributed coordination of crawls across multiple spiders and worker processes.
The document discusses two Ruby gems, Ashikawa::Core and Ashikawa::AR, that provide an interface to the ArangoDB database. Ashikawa::Core provides a low-level driver that abstracts ArangoDB's REST interface, while Ashikawa::AR implements an Active Record pattern for integrating ArangoDB with Rails applications. The document also briefly mentions plans to develop a DataMapper interface (Ashikawa::DataMapper) to support various data sources including ArangoDB.
SmartCrawler is a two-stage crawler for efficiently harvesting deep-web interfaces. In the first stage, SmartCrawler performs site-based searching to identify relevant websites using search engines and site ranking, avoiding visiting many irrelevant pages. In the second stage, SmartCrawler prioritizes links within websites using adaptive link ranking to efficiently find searchable forms. Experimental results showed SmartCrawler achieved higher harvest rates of deep-web interfaces than other crawlers by using its two-stage approach and adaptive learning techniques.
Scalable Event Analytics with MongoDB & Ruby on RailsJared Rosoff
The document discusses scaling event analytics applications using Ruby on Rails and MongoDB. It describes how the author's startup initially used a standard Rails architecture with MySQL, but ran into performance bottlenecks. It then explores solutions like replication, sharding, key-value stores and Hadoop, but notes the development challenges with each approach. The document concludes that using MongoDB provided scalable writes, flexible reporting and the ability to keep the application as "just a Rails app". MongoDB's sharding allows scaling to high concurrency levels with increased storage and transaction capacity across shards.
This is a academic work for developing a crawler that can classify the Web Content using SVM and Naive Bayes for Machine Learning, implemented with Elasticsearch, Crawler4J and Apache Spark.
A web crawler works by starting with a specified URL and recursively retrieving links within pages to build a crawl frontier of URLs to visit. It checks each URL to see if it exists and parses the page to extract new links, adding them to the frontier. This process continues recursively to a depth of around 5 levels typically to gather most on-site information before stopping to avoid getting trapped on pages with infinite loops of links.
ClojuTRE2015: Kekkonen - making your Clojure web APIs more awesomeMetosin Oy
Thanks to REST and Swagger, we can build beautiful apis to feed both our browser front-ends and external applications. But, wrapping your Clojure code into resources mostly for your ClojureScript front-end doesn't feel right? Just use RPC? Meet in the middle?
Kekkonen is a small library for managing your (web) apis as commands and queries. No magic, data-driven, un-restful and non-rpc. It's goals are to be small, explicit, extendable and to help enforce your business rules both on the server side and on the ClojureScript frontend. Besides Swagger, it provides run-time context-aware apidocs for Clojure(Script).
Apache Jackrabbit Oak - Scale your content repository to the cloudRobert Munteanu
The document discusses Apache Jackrabbit Oak, an open source content repository that can scale to the cloud. It provides an overview of content, repositories, scaling techniques using different storage backends like TarMK and MongoMK, and how Oak can be deployed in the cloud using technologies like S3 and MongoDB. The presentation covers key JCR concepts and shows how Oak can be used for applications like content management, digital asset management, and invoice management.
Log File Analysis: The most powerful tool in your SEO toolkitTom Bennet
Slide deck from Tom Bennet's presentation at Brighton SEO, September 2014. Accompanying guide can be found here: http://builtvisible.com/log-file-analysis/
Image Credits:
https://www.flickr.com/photos/nullvalue/4188517246
https://www.flickr.com/photos/small_realm/11189803763/
https://www.flickr.com/photos/florianric/7263382550
http://fotojenix.wordpress.com/2011/07/08/weekly-photo-challenge-old-fashioned/
Fluentd and Docker - running fluentd within a docker containerTreasure Data, Inc.
Fluentd is a data collection tool for unified logging that allows for extensible and reliable data collection. It uses a simple core with plugins to provide buffering, high availability, load balancing, and streaming data transfer based on JSON. Fluentd can collect log data from various sources and output to different destinations in a flexible way using its plugin architecture and configuration files. It is widely used in production for tasks like log aggregation, filtering, and forwarding.
The document summarizes an author's first experience using Google AppEngine, a platform that allows developers to build and host web applications on Google's infrastructure without having to maintain servers. The author discusses how AppEngine provides a scalable hosting environment but has limitations like blacklisting of certain technologies, per-account application limits, and constraints on data storage and querying. The author also explores services provided by AppEngine and notes that while much is free, usage beyond quotas requires payment.
Web crawling involves automated programs known as web crawlers or spiders that systematically browse the World Wide Web and extract information from websites. Crawlers are used by search engines to build comprehensive indexes of websites and their contents. The basic operation of crawlers involves starting with seed URLs, fetching and parsing web pages to extract new URLs, placing those URLs on a queue to crawl, and repeating the process. There are various types of crawlers that differ in how frequently they recrawl sites and whether they focus on specific topics. Key challenges of web crawling include the large volume and dynamic nature of web content as well as high rates of change.
Web scraping is mostly about parsing and normalization. This presentation introduces people to harvesting methods and tools as well as handy utilities for extracting and normalizing data
The document discusses web crawlers, which are programs that download web pages to help search engines index websites. It explains that crawlers use strategies like breadth-first search and depth-first search to systematically crawl the web. The architecture of crawlers includes components like the URL frontier, DNS lookup, and parsing pages to extract links. Crawling policies determine which pages to download and when to revisit pages. Distributed crawling improves efficiency by using multiple coordinated crawlers.
Wieldy remote apis with Kekkonen - ClojureD 2016Metosin Oy
Today, most of the apps we build involve the browser and thus need an remoting layer between the ui and the backend. New Technology like Falcor, Relay and Om Next are leading the innovation in this space. Is REST dead? CQRS to the rescue? How should I build my next api?
Our 2 cents is Kekkonen, a fresh new multi-paradigm api library for Clojure.
The document discusses web crawling and provides an overview of the process. It defines web crawling as the process of gathering web pages to index them and support search. The objective is to quickly gather useful pages and link structures. The presentation covers the basic operation of crawlers including using a seed set of URLs and frontier of URLs to crawl. It describes common modules in crawler architecture like URL filtering tests. It also discusses topics like politeness, distributed crawling, DNS resolution, and types of crawlers.
Experience feedback on 10 monthes of happy mongodb usage at fotopedia.
You may also checkout: http://www.slideshare.net/octplane/mongodb-vs-mysql-a-devops-point-of-view
The document proposes a two-stage crawler called SmartCrawler to efficiently harvest deep-web interfaces. In the first stage, SmartCrawler performs site-based searching to identify relevant websites while avoiding visiting many pages. In the second stage, SmartCrawler achieves fast in-site searching by prioritizing relevant links using an adaptive link-ranking approach. Experimental results show SmartCrawler retrieves deep-web interfaces more efficiently than other crawlers.
Smart Crawler -A Two Stage Crawler For Efficiently Harvesting Deep WebS Sai Karthik
As deep web grows at a very fast pace, there has been increased interest in techniques that help efficiently locate deep-web interfaces. However, due to the large volume of web resources and the dynamic nature of deep web, achieving wide coverage and high efficiency is a challenging issue. We propose a two-stage framework, namely Smart Crawler, for efficient harvesting deep web interfaces. In the first stage, Smart Crawler performs site-based searching for center pages with the help of search engines, avoiding visiting a large number of pages. To achieve more accurate results for a focused crawl, Smart Crawler ranks websites to prioritize highly relevant ones for a given topic. In the second stage, Smart Crawler achieves fast in-site searching by excavating most relevant links with an adaptive learning.
SmartCrawler is a two-stage crawler for efficiently harvesting deep-web interfaces. In the first stage, SmartCrawler performs site-based searching to identify relevant websites using search engines and site ranking, avoiding visiting many irrelevant pages. In the second stage, SmartCrawler prioritizes links within websites using adaptive link ranking to efficiently find searchable forms. Experimental results showed SmartCrawler achieved higher harvest rates of deep-web interfaces than other crawlers by using its two-stage approach and adaptive learning techniques.
Scalable Event Analytics with MongoDB & Ruby on RailsJared Rosoff
The document discusses scaling event analytics applications using Ruby on Rails and MongoDB. It describes how the author's startup initially used a standard Rails architecture with MySQL, but ran into performance bottlenecks. It then explores solutions like replication, sharding, key-value stores and Hadoop, but notes the development challenges with each approach. The document concludes that using MongoDB provided scalable writes, flexible reporting and the ability to keep the application as "just a Rails app". MongoDB's sharding allows scaling to high concurrency levels with increased storage and transaction capacity across shards.
This is a academic work for developing a crawler that can classify the Web Content using SVM and Naive Bayes for Machine Learning, implemented with Elasticsearch, Crawler4J and Apache Spark.
A web crawler works by starting with a specified URL and recursively retrieving links within pages to build a crawl frontier of URLs to visit. It checks each URL to see if it exists and parses the page to extract new links, adding them to the frontier. This process continues recursively to a depth of around 5 levels typically to gather most on-site information before stopping to avoid getting trapped on pages with infinite loops of links.
ClojuTRE2015: Kekkonen - making your Clojure web APIs more awesomeMetosin Oy
Thanks to REST and Swagger, we can build beautiful apis to feed both our browser front-ends and external applications. But, wrapping your Clojure code into resources mostly for your ClojureScript front-end doesn't feel right? Just use RPC? Meet in the middle?
Kekkonen is a small library for managing your (web) apis as commands and queries. No magic, data-driven, un-restful and non-rpc. It's goals are to be small, explicit, extendable and to help enforce your business rules both on the server side and on the ClojureScript frontend. Besides Swagger, it provides run-time context-aware apidocs for Clojure(Script).
Apache Jackrabbit Oak - Scale your content repository to the cloudRobert Munteanu
The document discusses Apache Jackrabbit Oak, an open source content repository that can scale to the cloud. It provides an overview of content, repositories, scaling techniques using different storage backends like TarMK and MongoMK, and how Oak can be deployed in the cloud using technologies like S3 and MongoDB. The presentation covers key JCR concepts and shows how Oak can be used for applications like content management, digital asset management, and invoice management.
Log File Analysis: The most powerful tool in your SEO toolkitTom Bennet
Slide deck from Tom Bennet's presentation at Brighton SEO, September 2014. Accompanying guide can be found here: http://builtvisible.com/log-file-analysis/
Image Credits:
https://www.flickr.com/photos/nullvalue/4188517246
https://www.flickr.com/photos/small_realm/11189803763/
https://www.flickr.com/photos/florianric/7263382550
http://fotojenix.wordpress.com/2011/07/08/weekly-photo-challenge-old-fashioned/
Fluentd and Docker - running fluentd within a docker containerTreasure Data, Inc.
Fluentd is a data collection tool for unified logging that allows for extensible and reliable data collection. It uses a simple core with plugins to provide buffering, high availability, load balancing, and streaming data transfer based on JSON. Fluentd can collect log data from various sources and output to different destinations in a flexible way using its plugin architecture and configuration files. It is widely used in production for tasks like log aggregation, filtering, and forwarding.
The document summarizes an author's first experience using Google AppEngine, a platform that allows developers to build and host web applications on Google's infrastructure without having to maintain servers. The author discusses how AppEngine provides a scalable hosting environment but has limitations like blacklisting of certain technologies, per-account application limits, and constraints on data storage and querying. The author also explores services provided by AppEngine and notes that while much is free, usage beyond quotas requires payment.
Web crawling involves automated programs known as web crawlers or spiders that systematically browse the World Wide Web and extract information from websites. Crawlers are used by search engines to build comprehensive indexes of websites and their contents. The basic operation of crawlers involves starting with seed URLs, fetching and parsing web pages to extract new URLs, placing those URLs on a queue to crawl, and repeating the process. There are various types of crawlers that differ in how frequently they recrawl sites and whether they focus on specific topics. Key challenges of web crawling include the large volume and dynamic nature of web content as well as high rates of change.
Web scraping is mostly about parsing and normalization. This presentation introduces people to harvesting methods and tools as well as handy utilities for extracting and normalizing data
The document discusses web crawlers, which are programs that download web pages to help search engines index websites. It explains that crawlers use strategies like breadth-first search and depth-first search to systematically crawl the web. The architecture of crawlers includes components like the URL frontier, DNS lookup, and parsing pages to extract links. Crawling policies determine which pages to download and when to revisit pages. Distributed crawling improves efficiency by using multiple coordinated crawlers.
Wieldy remote apis with Kekkonen - ClojureD 2016Metosin Oy
Today, most of the apps we build involve the browser and thus need an remoting layer between the ui and the backend. New Technology like Falcor, Relay and Om Next are leading the innovation in this space. Is REST dead? CQRS to the rescue? How should I build my next api?
Our 2 cents is Kekkonen, a fresh new multi-paradigm api library for Clojure.
The document discusses web crawling and provides an overview of the process. It defines web crawling as the process of gathering web pages to index them and support search. The objective is to quickly gather useful pages and link structures. The presentation covers the basic operation of crawlers including using a seed set of URLs and frontier of URLs to crawl. It describes common modules in crawler architecture like URL filtering tests. It also discusses topics like politeness, distributed crawling, DNS resolution, and types of crawlers.
Experience feedback on 10 monthes of happy mongodb usage at fotopedia.
You may also checkout: http://www.slideshare.net/octplane/mongodb-vs-mysql-a-devops-point-of-view
The document proposes a two-stage crawler called SmartCrawler to efficiently harvest deep-web interfaces. In the first stage, SmartCrawler performs site-based searching to identify relevant websites while avoiding visiting many pages. In the second stage, SmartCrawler achieves fast in-site searching by prioritizing relevant links using an adaptive link-ranking approach. Experimental results show SmartCrawler retrieves deep-web interfaces more efficiently than other crawlers.
Smart Crawler -A Two Stage Crawler For Efficiently Harvesting Deep WebS Sai Karthik
As deep web grows at a very fast pace, there has been increased interest in techniques that help efficiently locate deep-web interfaces. However, due to the large volume of web resources and the dynamic nature of deep web, achieving wide coverage and high efficiency is a challenging issue. We propose a two-stage framework, namely Smart Crawler, for efficient harvesting deep web interfaces. In the first stage, Smart Crawler performs site-based searching for center pages with the help of search engines, avoiding visiting a large number of pages. To achieve more accurate results for a focused crawl, Smart Crawler ranks websites to prioritize highly relevant ones for a given topic. In the second stage, Smart Crawler achieves fast in-site searching by excavating most relevant links with an adaptive learning.
Ruby on Rails is an open source web application framework that allows developers to create database-backed web applications quickly using conventions over configurations. Rails emphasizes less code and faster development through features like scaffolding that can generate basic CRUD functionality and views in minutes. Popular sites like Basecamp and 43 Things were built using Ruby on Rails by small teams in short periods of time due to Rails' conventions and built-in features for caching, validation, callbacks, and Ajax support.
In this guide, we will go over all the core concepts of large-scale web scraping and learn everything about it, from challenges to best practices. Large Scale Web Scraping is scraping web pages and extracting data from them. This can be done manually or with automated tools. The extracted data can then be used to build charts and graphs, create reports and perform other analyses on the data. It can be used to analyze large amounts of data, like traffic on a website or the number of visitors they receive. In addition, It can also be used to test different website versions so that you know which version gets more traffic than others.
Large Scale Web Scraping is an essential tool for businesses as it allows them to analyze their audience's behavior on different websites and compare which performs better. Large-scale scraping is a task that requires a lot of time, knowledge, and experience. It is not easy to do, and there are many challenges that you need to overcome in order to succeed. Performance is one of the significant challenges in large-scale web scraping.
The main reason for this is the size of web pages and the number of links resulting from the increased use of AJAX technology. This makes it difficult to scrape data from many web pages accurately and quickly. Web structure is the most crucial challenge in scraping. The structure of a web page is complex, and it is hard to extract information from it automatically. This problem can be solved using a web crawler explicitly developed for this task. Anti-Scraping Technique
Another major challenge that comes when you want to scrape the website at a large scale is anti-scraping. It is a method of blocking the scraping script from accessing the site.
If a site's server detects that it has been accessed from an external source, it will respond by blocking access to that external source and preventing scraping scripts from accessing it. Large-scale web scraping requires a lot of data and is challenging to manage. It is not a one-time process but a continuous one requiring regular updates. Here are some of the best practices for large-scale web scraping:
1. Create Crawling Path
The first thing to scrape extensive data is to create a crawling path. Crawling is systematically exploring a website and its content to gather information.
Data Warehouse
The data warehouse is a storehouse of enterprise data that is analyzed, consolidated, and analyzed to provide the business with valuable information. Proxy Service
Proxy service is a great way to scrape large-scale data. It can be used for scraping images, blog posts, and other types of data from the Internet. Detecting Bots & Blocking
Bots are a real problem for scraping. They are used to extract data from websites and make it available for human consumption. They do this by using software designed to mimic a human user so that when the bot does something on a website, it looks like a real human user was doing it.
AngularJS 1.x - your first application (problems and solutions)Igor Talevski
We will talk about all aspects of building a single page application with AngularJS, and we will discuss real examples from day-to-day work. We will also cover a large amount of theory about general web development, best practices, and today's client demands. We will focus on three (3) main points: architecture, security, and real time notification.
The document discusses various topics related to Rails deployment in the enterprise, including recommendations to use Ruby on Rails, MongoDB, and deployment tools like Capistrano and Puppet. It also covers some performance considerations and pitfalls to be aware of when using Rails.
The document describes a proposed two-stage smart web spider framework for efficiently harvesting data from the deep web. In the first stage, the smart web spider performs site-based searching for central pages using search engines to locate relevant sites while avoiding visiting a large number of pages. In the second stage, the spider performs fast in-site searching by prioritizing relevant links within sites. The goal is to improve the efficiency and coverage of deep web crawling compared to existing approaches. The proposed approach aims to balance wide coverage and efficient crawling to index more of the deep web, which contains a vast amount of valuable information not accessible by typical search engines.
This document provides an introduction and overview of keyword search over spatial databases and approximate string matching for spatial queries. It discusses spatial approximate string queries that find objects within a spatial range that have similar descriptions to a query term. It also provides background on technologies like Java Server Pages, Java Script, and communicating with databases from Java.
Ontopic's presentation on Storm-Crawler for ApacheCon North America 2015.
Storm-Crawler is a next-generation web crawler that discovers and processes content on the Web, in real-time with low latency. This open source (and Apache Licensed) project is built on the Apache Storm framework, which provides a great foundation for a distributed real-time web crawler.
How To Crawl Amazon Website Using Python Scrap (1).pptxiwebdatascraping
This blog is about how to Crawl products from Amazon.com with Python Scrapy. Download Meta Information and Images for every item available in the pre-defined list.
Rapid, Scalable Web Development with MongoDB, Ming, and PythonRick Copeland
In 2009, SourceForge embarked on a quest to modernize our websites, converting a site written for a hodge-podge of relational databases in PHP to a MongoDB and Python-powered site, with a small development team and a tight deadline. We have now completely rewritten both the consumer and producer parts of the site with better usability, more functionality and better performance. This talk focuses on how we're using MongoDB, the pymongo driver, and Ming, an ORM-like library implemented at SourceForge, to continually improve and expand our offerings, with a special focus on how3 anyone can quickly become productive with Ming and pymongo without having to apologize for poor performance.
How To Crawl Amazon Website Using Python Scrapy.pdfjimmylofy
This blog is about how to Crawl products from Amazon.com with Python Scrapy. Download Meta Information and Images for every item available in the pre-defined list.
The document compares Django and Ruby on Rails frameworks. It outlines some key similarities like the MTV/MVC patterns and relationships. It also highlights differences like routing syntax and autogenerated code in Rails. The document recommends Rails developers learn from its asset pipeline, template tags, and simplified routing while avoiding overgenerated code. It provides resources for learning Rails and introduces the consulting company Agiliq.
IRJET - Review on Search Engine OptimizationIRJET Journal
This document discusses search engine optimization (SEO) and how search engines work. It covers the key processes of crawling, indexing, and ranking that search engines use to find and organize web content. Crawling involves search engine bots finding and downloading web pages. Indexing processes and stores the crawled content in a searchable database. Ranking determines the order search results are displayed, with more relevant pages ranking higher. The document provides technical details on Google's architecture and algorithms to perform these core functions at scale across the vastness of the internet.
The document discusses software as a service (SAAS) and why the company Viridian chose to use the Ruby on Rails web application framework. It notes that Rails allows for lower entry costs than other options due to reduced server maintenance needs and flexibility. It also summarizes some key advantages of Rails like its convention over configuration approach and support for modern technologies. The document provides resources for learning Rails including dev environments, tutorials, and open source projects to review.
Smart Crawler: A Two Stage Crawler for Concept Based Semantic Search Engine.iosrjce
The internet is a vast collection of billions of web pages containing terabytes of information
arranged in thousands of servers using HTML. The size of this collection itself is a formidable obstacle in
retrieving necessary and relevant information. This made search engines an important part of our lives. Search
engines strive to retrieve information as relevant as possible. One of the building blocks of search engines is the
Web Crawler. We tend to propose a two - stage framework, specifically two smart Crawler, for efficient
gathering deep net interfaces. Within the first stage, smart Crawler, performs site-based sorting out centre
pages with the assistance of search engines, avoiding visiting an oversized variety of pages. To realize
additional correct results for a targeted crawl, smart Crawler, ranks websites to order extremely relevant ones
for a given topic. Within the second stage, smart Crawler, achieves quick in – site looking by excavating most
relevant links with associate degree accommodative link -ranking
This document describes a two-stage crawler called Smart Crawler for concept-based semantic search engines. The first stage involves locating relevant websites for a given topic through site collecting, ranking, and classification. The second stage performs in-site crawling to uncover searchable content from the highest ranked sites using reverse searching and incremental site prioritization algorithms. The system aims to maximize retrieval of deep web content across many websites rather than just a few individual sites.
Sinatra is a lightweight web application framework for Ruby. It is a DSL for quickly building web apps that leverages the Ruby language. Some key points about Sinatra include that it is lightweight, pluggable as middleware in other apps like Rails, and uses convention over configuration. Hello world apps are simple Sinatra blocks that return strings. Views and templates use formats like HAML and are organized in standard directories. Sinatra apps can be deployed to Heroku with git pushes or run locally using the Thin web server.
Similar to Web scraping with BeautifulSoup, LXML, RegEx and Scrapy (20)
Odoo releases a new update every year. The latest version, Odoo 17, came out in October 2023. It brought many improvements to the user interface and user experience, along with new features in modules like accounting, marketing, manufacturing, websites, and more.
The Odoo 17 update has been a hot topic among startups, mid-sized businesses, large enterprises, and Odoo developers aiming to grow their businesses. Since it is now already the first quarter of 2024, you must have a clear idea of what Odoo 17 entails and what it can offer your business if you are still not aware of it.
This blog covers the features and functionalities. Explore the entire blog and get in touch with expert Odoo ERP consultants to leverage Odoo 17 and its features for your business too.
An Overview of Odoo ERP
Odoo ERP was first released as OpenERP software in February 2005. It is a suite of business applications used for ERP, CRM, eCommerce, websites, and project management. Ten years ago, the Odoo Enterprise edition was launched to help fund the Odoo Community version.
When you compare Odoo Community and Enterprise, the Enterprise edition offers exclusive features like mobile app access, Odoo Studio customisation, Odoo hosting, and unlimited functional support.
Today, Odoo is a well-known name used by companies of all sizes across various industries, including manufacturing, retail, accounting, marketing, healthcare, IT consulting, and R&D.
The latest version, Odoo 17, has been available since October 2023. Key highlights of this update include:
Enhanced user experience with improvements to the command bar, faster backend page loading, and multiple dashboard views.
Instant report generation, credit limit alerts for sales and invoices, separate OCR settings for invoice creation, and an auto-complete feature for forms in the accounting module.
Improved image handling and global attribute changes for mailing lists in email marketing.
A default auto-signature option and a refuse-to-sign option in HR modules.
Options to divide and merge manufacturing orders, track the status of manufacturing orders, and more in the MRP module.
Dark mode in Odoo 17.
Now that the Odoo 17 announcement is official, let’s look at what’s new in Odoo 17!
What is Odoo ERP 17?
Odoo 17 is the latest version of one of the world’s leading open-source enterprise ERPs. This version has come up with significant improvements explained here in this blog. Also, this new version aims to introduce features that enhance time-saving, efficiency, and productivity for users across various organisations.
Odoo 17, released at the Odoo Experience 2023, brought notable improvements to the user interface and added new functionalities with enhancements in performance, accessibility, data analysis, and management, further expanding its reach in the market.
E-commerce Development Services- Hornet DynamicsHornet Dynamics
For any business hoping to succeed in the digital age, having a strong online presence is crucial. We offer Ecommerce Development Services that are customized according to your business requirements and client preferences, enabling you to create a dynamic, safe, and user-friendly online store.
UI5con 2024 - Keynote: Latest News about UI5 and it’s EcosystemPeter Muessig
Learn about the latest innovations in and around OpenUI5/SAPUI5: UI5 Tooling, UI5 linter, UI5 Web Components, Web Components Integration, UI5 2.x, UI5 GenAI.
Recording:
https://www.youtube.com/live/MSdGLG2zLy8?si=INxBHTqkwHhxV5Ta&t=0
E-Invoicing Implementation: A Step-by-Step Guide for Saudi Arabian CompaniesQuickdice ERP
Explore the seamless transition to e-invoicing with this comprehensive guide tailored for Saudi Arabian businesses. Navigate the process effortlessly with step-by-step instructions designed to streamline implementation and enhance efficiency.
INTRODUCTION TO AI CLASSICAL THEORY TARGETED EXAMPLESanfaltahir1010
Image: Include an image that represents the concept of precision, such as a AI helix or a futuristic healthcare
setting.
Objective: Provide a foundational understanding of precision medicine and its departure from traditional
approaches
Role of theory: Discuss how genomics, the study of an organism's complete set of AI ,
plays a crucial role in precision medicine.
Customizing treatment plans: Highlight how genetic information is used to customize
treatment plans based on an individual's genetic makeup.
Examples: Provide real-world examples of successful application of AI such as genetic
therapies or targeted treatments.
Importance of molecular diagnostics: Explain the role of molecular diagnostics in identifying
molecular and genetic markers associated with diseases.
Biomarker testing: Showcase how biomarker testing aids in creating personalized treatment plans.
Content:
• Ethical issues: Examine ethical concerns related to precision medicine, such as privacy, consent, and
potential misuse of genetic information.
• Regulations and guidelines: Present examples of ethical guidelines and regulations in place to safeguard
patient rights.
• Visuals: Include images or icons representing ethical considerations.
Content:
• Ethical issues: Examine ethical concerns related to precision medicine, such as privacy, consent, and
potential misuse of genetic information.
• Regulations and guidelines: Present examples of ethical guidelines and regulations in place to safeguard
patient rights.
• Visuals: Include images or icons representing ethical considerations.
Content:
• Ethical issues: Examine ethical concerns related to precision medicine, such as privacy, consent, and
potential misuse of genetic information.
• Regulations and guidelines: Present examples of ethical guidelines and regulations in place to safeguard
patient rights.
• Visuals: Include images or icons representing ethical considerations.
Real-world case study: Present a detailed case study showcasing the success of precision
medicine in a specific medical scenario.
Patient's journey: Discuss the patient's journey, treatment plan, and outcomes.
Impact: Emphasize the transformative effect of precision medicine on the individual's
health.
Objective: Ground the presentation in a real-world example, highlighting the practical
application and success of precision medicine.
Data challenges: Address the challenges associated with managing large sets of patient data in precision
medicine.
Technological solutions: Discuss technological innovations and solutions for handling and analyzing vast
datasets.
Visuals: Include graphics representing data management challenges and technological solutions.
Objective: Acknowledge the data-related challenges in precision medicine and highlight innovative solutions.
Data challenges: Address the challenges associated with managing large sets of patient data in precision
medicine.
Technological solutions: Discuss technological innovations and solutions
8 Best Automated Android App Testing Tool and Framework in 2024.pdfkalichargn70th171
Regarding mobile operating systems, two major players dominate our thoughts: Android and iPhone. With Android leading the market, software development companies are focused on delivering apps compatible with this OS. Ensuring an app's functionality across various Android devices, OS versions, and hardware specifications is critical, making Android app testing essential.
Most important New features of Oracle 23c for DBAs and Developers. You can get more idea from my youtube channel video from https://youtu.be/XvL5WtaC20A
Consistent toolbox talks are critical for maintaining workplace safety, as they provide regular opportunities to address specific hazards and reinforce safe practices.
These brief, focused sessions ensure that safety is a continual conversation rather than a one-time event, which helps keep safety protocols fresh in employees' minds. Studies have shown that shorter, more frequent training sessions are more effective for retention and behavior change compared to longer, infrequent sessions.
Engaging workers regularly, toolbox talks promote a culture of safety, empower employees to voice concerns, and ultimately reduce the likelihood of accidents and injuries on site.
The traditional method of conducting safety talks with paper documents and lengthy meetings is not only time-consuming but also less effective. Manual tracking of attendance and compliance is prone to errors and inconsistencies, leading to gaps in safety communication and potential non-compliance with OSHA regulations. Switching to a digital solution like Safelyio offers significant advantages.
Safelyio automates the delivery and documentation of safety talks, ensuring consistency and accessibility. The microlearning approach breaks down complex safety protocols into manageable, bite-sized pieces, making it easier for employees to absorb and retain information.
This method minimizes disruptions to work schedules, eliminates the hassle of paperwork, and ensures that all safety communications are tracked and recorded accurately. Ultimately, using a digital platform like Safelyio enhances engagement, compliance, and overall safety performance on site. https://safelyio.com/
Flutter is a popular open source, cross-platform framework developed by Google. In this webinar we'll explore Flutter and its architecture, delve into the Flutter Embedder and Flutter’s Dart language, discover how to leverage Flutter for embedded device development, learn about Automotive Grade Linux (AGL) and its consortium and understand the rationale behind AGL's choice of Flutter for next-gen IVI systems. Don’t miss this opportunity to discover whether Flutter is right for your project.
Measures in SQL (SIGMOD 2024, Santiago, Chile)Julian Hyde
SQL has attained widespread adoption, but Business Intelligence tools still use their own higher level languages based upon a multidimensional paradigm. Composable calculations are what is missing from SQL, and we propose a new kind of column, called a measure, that attaches a calculation to a table. Like regular tables, tables with measures are composable and closed when used in queries.
SQL-with-measures has the power, conciseness and reusability of multidimensional languages but retains SQL semantics. Measure invocations can be expanded in place to simple, clear SQL.
To define the evaluation semantics for measures, we introduce context-sensitive expressions (a way to evaluate multidimensional expressions that is consistent with existing SQL semantics), a concept called evaluation context, and several operations for setting and modifying the evaluation context.
A talk at SIGMOD, June 9–15, 2024, Santiago, Chile
Authors: Julian Hyde (Google) and John Fremlin (Google)
https://doi.org/10.1145/3626246.3653374
Malibou Pitch Deck For Its €3M Seed Roundsjcobrien
French start-up Malibou raised a €3 million Seed Round to develop its payroll and human resources
management platform for VSEs and SMEs. The financing round was led by investors Breega, Y Combinator, and FCVC.
14 th Edition of International conference on computer visionShulagnaSarkar2
About the event
14th Edition of International conference on computer vision
Computer conferences organized by ScienceFather group. ScienceFather takes the privilege to invite speakers participants students delegates and exhibitors from across the globe to its International Conference on computer conferences to be held in the Various Beautiful cites of the world. computer conferences are a discussion of common Inventions-related issues and additionally trade information share proof thoughts and insight into advanced developments in the science inventions service system. New technology may create many materials and devices with a vast range of applications such as in Science medicine electronics biomaterials energy production and consumer products.
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Top Benefits of Using Salesforce Healthcare CRM for Patient Management.pdfVALiNTRY360
Salesforce Healthcare CRM, implemented by VALiNTRY360, revolutionizes patient management by enhancing patient engagement, streamlining administrative processes, and improving care coordination. Its advanced analytics, robust security, and seamless integration with telehealth services ensure that healthcare providers can deliver personalized, efficient, and secure patient care. By automating routine tasks and providing actionable insights, Salesforce Healthcare CRM enables healthcare providers to focus on delivering high-quality care, leading to better patient outcomes and higher satisfaction. VALiNTRY360's expertise ensures a tailored solution that meets the unique needs of any healthcare practice, from small clinics to large hospital systems.
For more info visit us https://valintry360.com/solutions/health-life-sciences
2. AGENDA
• What is Web Scraping?
• Why it is needed?
• How it Works?
• How to do Massive Web Scraping?
• Can we make it Automated?
3. WEB SCRAPING
‘Web Scraping’ is a technique for gathering structured data or information
from web pages.
It offers a quick way to acquire data which is presented on the web in a
particular format.
What is it?
4. WEB SCRAPING
In some cases API’s are not capable enough to get the whole data that we
want from web pages.
We can anonymously access the website and gather data.
It is not data limited.
Why it is needed?
5. WEB SCRAPING
1. Accessing the target Website using HTTP library like requests, Urllib,
httplib, etc.
2. Parse the content of the web using any Web Parsing library like Beautiful
Soup, lxml, ReGex, etc.
3. Save the result to the required format like Database table, CSV, Excel, text
file, etc.
How it works?
8. WEB SCRAPING
httplib2
Httplib2 is a small, fast HTTP client library for Python. Features persistent
connections, cache, and Google App Engine support
Part1: Accessing Data
9. WEB SCRAPING
BeautifulSoup4
Beautiful Soup is a Parsing library that makes it easy to scrape information
from web pages.
It sits atop an HTML or XML parser, providing Pythonic idioms for iterating,
searching, and modifying the parse tree.
It is very easy to use. But slow in parsing.
Part2: Parsing Content
11. WEB SCRAPING
lxml
lxml is the most feature-rich and easy-to-use library for processing XML
and HTML in Python which represents as an element tree.
Very fast in processing.
Codes cannot purely in Python
Part2: Parsing Content
12. WEB SCRAPING
lxml
lxml is able to works with all python versions from 2.x to 3.x.
Part2: Parsing Content
13. WEB SCRAPING
RegEx
Regex is a library which used to work with Regular Expressions.
Based on our request pattern it is able to parse the data.
It is used only to extract minute amount of text.
In order to handle we should learn its symbols e.g '.',*,$,^,b,w,d
Part2: Parsing Content
14. WEB SCRAPING
RegEx
Can purely code in Python.
It is very fast and support all versions of Python.
Part2: Parsing Content
15. WEB SCRAPING
After parsing we will get the collection of data that we want to work with.
Then we can convert it into the convenient format for later purpose.
We can save the data into the various formats like DataBase table or Comma-
Seperated Values(CSV) file or Excel file or Normal Text file.
Part3: Saving Result
16. WEB SCRAPING
Request library is much slower than all. But the advantage is that it supports
restful API.
Httplib2 consumes least execution time but it is hard to work with other
languages.
Time Comparison:
Comparison: Http Libraries
17. WEB SCRAPING
Beautifulsoup consumes more time to parse the data but it widely used
because of it’s high support with other languages.
RegEx is veery easy to usable and run faster but cannot work in complex
situations.
Time Comparison:
Comparison: Parsing Libraries
18. WEB SCRAPING
In some time it needed millions of web pages to be scraped everyday to get a
solution.
Most times the source web pages will change and it will become a havoc for
you to get the required data.
In some cases regex won’t work but beautifulsoup will. But the issue is that
the output will be generated very slowly.
How to do Massive Web Scraping?
19. WEB SCRAPING
SCRAPY is the solution for Massive Web Scraping.
It is a free and open-source web-crawling framework written in Python.
It can also be used to extract data using APIs or as a general-purpose web
crawler.
It comprised with almost all tools that we want to work for web scraping.
How to do Massive Web Scraping?
20. WEB SCRAPING
When there is millions of pages to scrape.
When you want asynchronous processing(multiple request at a time)
When the data is funky in nature and it is not properly formatted.
Pages with server issues.
Websites with login wall.
Scrapy: When to Use?
21. WEB SCRAPING
1. Define a Scraper.
2. Defining Items to Extract.
3. Creating a Spider to Crawl.
4. Run the Scraper.
Scrapy: WorkFlow
22. WEB SCRAPING
First we have to define the scraper by building a project.
It will create a directory with the required files and directories.
Scrapy: Defining Scraper
23. WEB SCRAPING
Root Directory will contain a configuration file ‘scrapy.cfg’ and project’s
python module.
The module folder will contain items file, pipeline file, settings file,
middlewares file, a directory for putting spiders and init python file.
Scrapy: Defining Scraper
24. WEB SCRAPING
Items are the containers used to collect the data that is scrapped from the
websites.
We can define our items by editing ‘items.py’.
Scrapy: Defining Items to Extract
25. WEB SCRAPING
Spiders are classes which defines;
How a certain site will be scraped,
How to perform the crawl and
How to extract structured data from their pages.
Scrapy: Creating a Spider to Crawl
Here is how to create your spider with any sample template
26. WEB SCRAPING
In order to crawl our data we have to define the callback function parse()
It will collect the data of our interest.
We can also define settings in spider like allowed domain settings, callback
response, etc.
Scrapy: Creating a Spider to Crawl
27. WEB SCRAPING
After defining items and our crawler we can run our scraper by scrapy crawl
command. We can also store scraped data by using Feed Exports.
Scrapy also provides shell scripting using built-in Scrapy Shell. We can trigger
the shell by the following way.
Scrapy: Run the Scraper
28. WEB SCRAPING
Automated code makes the process to be completed without any human
intervention.
Can easily pass through the walls of webpages without getting blocked.
The solution is Selenium. It is one of the well known package which is used
to automate web browser interaction. Also supports python.
Can we make it Automated?