The document describes the anatomy and architecture of Google's large-scale search engine. It discusses how Google crawls the web to index pages, calculates page ranks, and uses its index to return relevant search results. Key components include distributed crawlers that gather page content, a URL server that directs crawlers, storage servers that house the repository, an indexer that processes pages into searchable hits, and a searcher that handles user queries using the index and page ranks.
Applied Semantic Search with Microsoft SQL ServerMark Tabladillo
Text mining is projected to dominate data mining, and the reasons are evident: we have more text available than numeric data. Microsoft introduced a new technology to SQL Server 2012 called Semantic Search. This session's detailed description and demos give you important information for the enterprise implementation of Tag Index and Document Similarity Index. The demos include a web-based Silverlight application, and content documents from Wikipedia. We'll also look at strategy tips for how to best leverage the new semantic technology with existing Microsoft data mining.
Munching & crunching - Lucene index post-processingabial
Lucene EuroCon 10 presentation on index post-processing (splitting, merging, sorting, pruning), tiered search, bitwise search, and a few slides on MapReduce indexing models (I ran out of time to show them, but they are there...)
Applied Semantic Search with Microsoft SQL ServerMark Tabladillo
Text mining is projected to dominate data mining, and the reasons are evident: we have more text available than numeric data. Microsoft introduced a new technology to SQL Server 2012 called Semantic Search. This session's detailed description and demos give you important information for the enterprise implementation of Tag Index and Document Similarity Index. The demos include a web-based Silverlight application, and content documents from Wikipedia. We'll also look at strategy tips for how to best leverage the new semantic technology with existing Microsoft data mining.
Munching & crunching - Lucene index post-processingabial
Lucene EuroCon 10 presentation on index post-processing (splitting, merging, sorting, pruning), tiered search, bitwise search, and a few slides on MapReduce indexing models (I ran out of time to show them, but they are there...)
Presented by Adrien Grand, Software Engineer, Elasticsearch
Although people usually come to Lucene and related solutions in order to make data searchable, they often realize that it can do much more for them. Indeed, its ability to handle high loads of complex queries make Lucene a perfect fit for analytics applications and, for some use-cases, even a credible replacement for a primary data-store. It is important to understand the design decisions behind Lucene in order to better understand the problems it can solve and the problems it cannot solve. This talk will explain the design decisions behind Lucene, give insights into how Lucene stores data on disk and how it differs from traditional databases. Finally, there will be highlights of recent and future changes in Lucene index file formats.
With library collections now predominantly electronic, there is more and more reliance on ‘knowledgebases’, those databases of metadata about e-resources that are provided by suppliers of e-resource management software (ERM), as well as by community organisations such as Jisc. This panel, made up of an e-book supplier, a metadata librarian and a discovery service repository manager, will provide the audience with a view of what it takes to actually get metadata from the supplier of the e-resource through the ingest and editorial processes of the knowledgebase provider and into the discovery service.
JPJ1421 Facilitating Document Annotation Using Content and Querying Valuechennaijp
We are good IEEE java projects development center in Chennai and Pondicherry. We guided advanced java technologies projects of cloud computing, data mining, Secure Computing, Networking, Parallel & Distributed Systems, Mobile Computing and Service Computing (Web Service).
For More Details:
http://jpinfotech.org/final-year-ieee-projects/2014-ieee-projects/java-projects/
Facilitating document annotation using content and querying valueIEEEFINALYEARPROJECTS
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09849539085, 09966235788 or mail us - ieeefinalsemprojects@gmail.co¬m-Visit Our Website: www.finalyearprojects.org
Presented by Marjorie Hlava, president of Access Innovations, Inc. on August 10, 2011. Part two of the Special Libraries Association's Leveraging Your Taxonomy series.
Dynamic and repeatable transformation of existing Thesauri and Authority list...DESTIN-Informatique.com
Integrating applications & projects
= Dynamic & repeatable transformation of existing Thesauri and Authority lists into SKOS
+ Cross-tabulation of Concepts Linked Data
Presentation to the Linked Data Meeting
University College of London, September 14th 2010
by Christophe Dupriez, Destin SSEB, working for Belgium Poison Centre
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09849539085, 09966235788 or mail us - ieeefinalsemprojects@gmail.com-Visit Our Website: www.finalyearprojects.org
Presented by Adrien Grand, Software Engineer, Elasticsearch
Although people usually come to Lucene and related solutions in order to make data searchable, they often realize that it can do much more for them. Indeed, its ability to handle high loads of complex queries make Lucene a perfect fit for analytics applications and, for some use-cases, even a credible replacement for a primary data-store. It is important to understand the design decisions behind Lucene in order to better understand the problems it can solve and the problems it cannot solve. This talk will explain the design decisions behind Lucene, give insights into how Lucene stores data on disk and how it differs from traditional databases. Finally, there will be highlights of recent and future changes in Lucene index file formats.
With library collections now predominantly electronic, there is more and more reliance on ‘knowledgebases’, those databases of metadata about e-resources that are provided by suppliers of e-resource management software (ERM), as well as by community organisations such as Jisc. This panel, made up of an e-book supplier, a metadata librarian and a discovery service repository manager, will provide the audience with a view of what it takes to actually get metadata from the supplier of the e-resource through the ingest and editorial processes of the knowledgebase provider and into the discovery service.
JPJ1421 Facilitating Document Annotation Using Content and Querying Valuechennaijp
We are good IEEE java projects development center in Chennai and Pondicherry. We guided advanced java technologies projects of cloud computing, data mining, Secure Computing, Networking, Parallel & Distributed Systems, Mobile Computing and Service Computing (Web Service).
For More Details:
http://jpinfotech.org/final-year-ieee-projects/2014-ieee-projects/java-projects/
Facilitating document annotation using content and querying valueIEEEFINALYEARPROJECTS
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09849539085, 09966235788 or mail us - ieeefinalsemprojects@gmail.co¬m-Visit Our Website: www.finalyearprojects.org
Presented by Marjorie Hlava, president of Access Innovations, Inc. on August 10, 2011. Part two of the Special Libraries Association's Leveraging Your Taxonomy series.
Dynamic and repeatable transformation of existing Thesauri and Authority list...DESTIN-Informatique.com
Integrating applications & projects
= Dynamic & repeatable transformation of existing Thesauri and Authority lists into SKOS
+ Cross-tabulation of Concepts Linked Data
Presentation to the Linked Data Meeting
University College of London, September 14th 2010
by Christophe Dupriez, Destin SSEB, working for Belgium Poison Centre
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09849539085, 09966235788 or mail us - ieeefinalsemprojects@gmail.com-Visit Our Website: www.finalyearprojects.org
Context Based Indexing in Search Engines Using Ontology: Reviewiosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Annotating Search Results from Web DatabasesSWAMI06
An increasing number of databases have become web accessible through HTML form-based search interfaces. The data
units returned from the underlying database are usually encoded into the result pages dynamically for human browsing. For the
encoded data units to be machine processable, which is essential for many applications such as deep web data collection and Internet
comparison shopping, they need to be extracted out and assigned meaningful labels. In this paper, we present an automatic
annotation approach that first aligns the data units on a result page into different groups such that the data in the same group have the
same semantic. Then, for each group we annotate it from different aspects and aggregate the different annotations to predict a final
annotation label for it. An annotation wrapper for the search site is automatically constructed and can be used to annotate new result
pages from the same web database. Our experiments indicate that the proposed approach is highly effective.
Annotating search results from web databases-IEEE Transaction Paper 2013Yadhu Kiran
Abstract—An increasing number of databases have become web accessible through HTML form-based search interfaces. The data units returned from the underlying database are usually encoded into the result pages dynamically for human browsing. For the encoded data units to be machine processable, which is essential for many applications such as deep web data collection and Internet comparison shopping, they need to be extracted out and assigned meaningful labels. In this paper, we present an automatic
annotation approach that first aligns the data units on a result page into different groups such that the data in the same group have the same semantic. Then, for each group we annotate it from different aspects and aggregate the different annotations to predict a final annotation label for it. An annotation wrapper for the search site is automatically constructed and can be used to annotate new result pages from the same web database. Our experiments indicate that the proposed approach is highly effective.
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Page 18Goal Implement a complete search engine. Milestones.docxsmile790243
Page 1/8
Goal: Implement a complete search engine. Milestones Overview
Milestone Goal #1 Produce an initial index for the corpus and a basic retrieval component
#2 Complete Search System
Page 2/8
PROJECT: SEARCH ENGINE Corpus: all ICS web pages We will provide you with the crawled data as a zip file (webpages_raw.zip). This contains the downloaded content of the ICS web pages that were crawled by a previous quarter. You are expected to build your search engine index off of this data. Main challenges: Full HTML parsing, File/DB handling, handling user input (either using command line or desktop GUI application or web interface) COMPONENT 1 - INDEX: Create an inverted index for all the corpus given to you. You can either use a database to store your index (MongoDB, Redis, memcached are some examples) or you can store the index in a file. You are free to choose an approach here. The index should store more than just a simple list of documents where the token occurs. At the very least, your index should store the TF-IDF of every term/document. Sample Index:
Note: This is a simplistic example provided for your understanding. Please do not consider this as the expected index format. A good inverted index will store more information than this. Index Structure: token – docId1, tf-idf1 ; docId2, tf-idf2
Example: informatics – doc_1, 5 ; doc_2, 10 ; doc_3, 7 You are encouraged to come up with heuristics that make sense and will help in retrieving relevant search results. For e.g. - words in bold and in heading (h1, h2, h3) could be treated as more important than the other words. These are useful metadata that could be added to your inverted index data. Optional (1 point for each meta data item up to 2 points max):: Extra credit will be given for ideas that improve the quality of the retrieval, so you may add more metadata to your index, if you think it will help improve the quality of the retrieval. For this, instead of storing a simple TF-IDF count for every page, you can store more information related to the page (e.g. position of the words in the page). To store this information, you need to design your index in such a way that it can store and retrieve all this metadata efficiently. Your index lookup during search should not be horribly slow, so pay attention to the structure of your index COMPONENT 2 – SEARCH AND RETRIEVE: Your program should prompt the user for a query. This doesn’t need to be a Web interface, it can be a console prompt. At the time of the query, your program will look up your index, perform some calculations (see ranking below) and give out the ranked list of pages that are relevant for the query.
COMPONENT 3 - RANKING:
At the very least, your ranking formula should include tf-idf scoring, but you should feel free to add additional components to this formula if you think they improve the retrieval. Optional (1 point for each parameter up to 2 points max): Extra credit will be given if your ranking formula includes par.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
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DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
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Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
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Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
FIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdf
Anatomy of google
1. THE ANATOMY OF A LARGE SCALE-HYPER
TEXTUAL WEB SEARCH ENGINE
ASIM FROM UNIVERSITY PESAHAWAR.
Author: Sergey Brin, Lawrence Page
2.
3.
4.
5.
6.
7. ABSTRACT
Google Search Engine as Prototype
Anatomy
Web Users: Queries (tens of millions)
Academic research
Building a large scale search engine
Heavy use of hyper textual information
(anchor links, hyperlinks)
8. INTRODUCTION
Web (as a dynamic entity)
Irrelevant Search Results
Human maintained Indices, Table of Contents
Too many low quality research
Address many problems of users (Page Ranking)
9. CONT…
Google: Scaling with the Web
Google’s Fast Crawling Technology
Storage space availability
Indexing system processing 100’s of Gigabytes
Data
Minimized Queries Response Time
10. DESIGN GOALS
Improved Search Quality.
Indexing does not provide Relevant Search Results.
Making the percentage of Junks Results as low as possible.
Users show interest in top ranked results.
Notion is to provide relevant results.
Google make uses of Link structure & anchor text.
11. CONT…
Academic search engine results.
User Accessibility & Availability of the desired
results.
Supports Novel Research.
All problem solving solutions to be given in a single
place.
12. SYSTEM FEATURES
Google search engine has two important features.
Link structure of the web(page ranking).
Utilization Links(anchor text) to improve search
results.
<A href="http://www.yahoo.com/">Yahoo!</A>
Besides the text of a hyperlink (anchor text) is
associated with the page that the link is on,
it is also associated with the page the link
points to.
13. PAGE RANK
Page Rank: bringing order to the web
Academic citation literature is applied to calculate
page rank
PR(A) = (1-d) + d(PR(t1)/C(t1) + ... + PR(tn)/C(tn))
In the equation 't1 - tn' are pages linking to page A,
'C' is the number of outbound links that a page has
and 'd' is a damping factor, usually set to 0.85.
14. PAGE RANK (INTUITIVE JUSTIFICATION)
Many pages that point to a single page
A page having high PageRank that points to
another page
Broken Links are not listed on Higher Page Ranked
sites
Text of the link provides more description, Google
utilizes such information
Provides more accurate results for images, graphs,
databases
17. SYSTEM ANATOMY
URL Server:
provides list of URLs to the Crawlers for fetching
information from web
Distributed Crawlers (Downloading WebPages)
Store Server:
Compression and Storage in Repository
docID’s are used to distinguish WebPages
Indexer
Indexing, Sorting, Uncompressing, Parsing
Hits
records word occurences, position, text formate information in
documents
Hits are organized into barrels which creates partially sorted
forward index
18. FORWARD INDEX
Document Words
Document 1 the,cow,says,moo
Document 2 the,cat,and,the,hat
Document 3 the,dish,ran,away,with,the,spoon
19. INVERTED INDEX
T0 = "it is what it is“
T1 = "what is it“
T2 = "it is a banana“
A term search for the terms "what", "is" and "it" would give the set.
If we run a phrase search for "what is it" we get hits for all the words in both document 0
and 1. But the terms occur consecutively only in document 1.
Inverted Index Words
{(2, 2)} a
{(2, 3)} banana
{(0, 1), (0, 4), (1, 1), (2, 1)} is
{(0, 0), (0, 3), (1, 2), (2, 0)} It
{(0, 2), (1, 0)} What
20. CONT…
Indexer:
Anchor files as a result of parsing possessing links
information (in & out links)
URL resolver:
Reads anchor files, converts relative to absolute URLs
and inturn into docIDs
Puts anchor text in forward index
Database of links, necessary to compute PageRanks
Sorter :
Takes the barrels which are sorted by docID and
resorts them by wordID to generate inverted index.
It produces a list of wordIDs and offsets into the inverted
index.
21. CONT…
DumpLexicon
A program DumpLexicon takes this list together with the
lexicon produced by the indexer and generates a new
lexicon to be used by the searcher.
Searcher:
The searcher is run by a web server and uses the
lexicon built by DumpLexicon together with the inverted
index and the PageRanks to answer queries.
22. CONT…
Major data structures
Data is stored in BigFiles which are virtual files and it
supports compression.
Half of the storage used by raw html repository.
Having compressed html of every page and its small
header.
Document index keep information of each document.
The ISAM(Index sequential access mode) index is
ordered by docID.
Each stored entry includes information of current
status, pointer into the repository, document checksum,
URL and title information.
They all are memory-based hash tables with varying
values attached with each word.
23. CONT…
Hit lits encoding
Uses compact encoding(a hand optimized)
It requires less space and less bit manipulation.
It uses two bytes for every hits.
For saving space the length of a hit list is combined with
the wordID in the forward index and the docID in the
inverted index.
Forward index is stored in the number of barrels(64).
Each barrels holds word IDs
Words falling in particular barrel, the DocIDs is recorded
into the barrel followed by the List of WordIDs with
Hitlists which corresponds to those words
24. CONT…
The inverted index consist of the same barrels as
the forward index. Inverted index is processed by
the sorter
Pointer is used for pointing to wordID in barrels.
Pointer points to List of docIDs and Hit list, this is
called docList
25. CRAWLING
Web Crawling (downloading pages)
Crawlers (3 to 4)
Each crawler contains three hundred open
connections
Social issues
Efficiency
27. DESCRIPTION OF THE PICTORIAL COMPONENTS
Components Description
Crawlers There are several distributed crawlers, they parse the pages and
extract links and keywords.
URL Server Provides to crawlers a list of URLs to scan. The crawlers sends
collected data to a store server.
Server Store It compresses the pages and places them in the repository. Each
page is stored with an identifier, a docID.
Repository Contains a copy of the pages and images, allowing comparisons and
caching.
Indexer It decompresses documents and converts them into sets of words
called "hits". It distributes hits among a set of "barrels". This provides
an index partially sorted. It also creates a list of URLs on each page.
A hit contains the following information: the word, its position in the
document, font size, capitalization.
Barrels These "barrels" are databases that classify documents by docID.
They are created by the indexer and used by the sorter.
Anchors The bank of anchors created by the indexer contains internal links
and text associated with each link.
28. CONT…
Components Description
URL It takes the contents of anchors, converts relative URLs into absolute
Resolver addresses and finds or creates a docID.
It builds an index of documents and a database of links.
Doc Index Contains the text relative to each URL.
The database of links associates each one with a docID (and so to a
Links
real document on the Web).
The software uses the database of links to define the PageRank of each
PageRank
page.
It interacts with barrels. It includes documents classified by docID and
Sorter
creates an inverted list sorted by wordID.
A software called DumpLexicon takes the list provided by the sorter
(classified by wordID), and also includes the lexicon created by the
Lexicon
indexer (the sets of keywords in each page), and produces a new
lexicon to the searcher.
It runs on a web server in a datacenter, uses the lexicon built by
Searcher DumpLexicon in combination with the index classified by wordID,
taking into account the PageRank, and produces a results page.
29. RESULTS, PROBLEMS & CONCLUSION
Most important issue is quality of search results
Google performance is better compared to other
commercial engines
Need of Relevant and exact Query Results
Up to date information processing
Performing search queries
Crawling technologies
Google employs a number of techniques to improve
search quality including page rank, anchor text, and
proximity information.
“The ultimate search engine would understand exactly
what you mean and give back exactly what you want.”
by Larry Page
30. “The ultimate search engine would understand exactly what you
mean and give back exactly what you want.” by Larry Page
“The absolute search engine’s query generation would be based
on information, not based on the repository records and query
results will be real timed, and it will change the whole internet
and web architecture.” by asim