The document discusses using the logic programming language Prolog to process OWL2 ontologies. It describes Thea, a Prolog library that allows OWL ontologies to be loaded as Prolog facts and rules. This enables querying ontologies, manipulating and reasoning over them using Prolog. Thea implements OWL parsing and serialization. It also provides interfaces to external reasoners and supports generating description logic programs, SWRL rules, and acting as an OWL Link client to interface with remote reasoners.
This document provides a summary of the Standard PHP Library (SPL) which is a collection of classes and interfaces that provide solutions to common problems. It discusses key SPL components like arrays, iterators, exceptions, maps, sets, heaps, queues and stacks. The SPL aims to standardize data access and provides interfaces for traversing data structures, working with files and implementing patterns like Observer.
SPL: The Undiscovered Library - DataStructuresMark Baker
The document provides an overview of the Standard PHP Library (SPL) data structures in PHP, including Fixed Arrays, Doubly-Linked Lists, Stacks, and Queues. It discusses what each data structure is, common use cases, time complexities of key operations, and examples of implementing each with native PHP arrays versus SPL classes. The document shows that SPL data structures can offer improved performance and lower memory usage compared to traditional PHP arrays in many cases.
This document provides an overview of new features introduced in PHP 5.3 for the Standard PHP Library (SPL). It discusses several new SPL container classes like SplFixedArray, SplDoublyLinkedList, SplStack, SplQueue, SplHeap, SplPriorityQueue, and SplObjectStorage. For each container class, it describes what it is, when it should be used, provides example code, and benchmarks the execution speed and memory usage compared to traditional PHP arrays. The document concludes by thanking Etienne Kneuss for his work on the new SPL features and listing some additional SPL resources and possible future enhancements.
BioPerl is an open source collection of Perl modules for bioinformatics. It contains over 550 modules covering tasks like sequence analysis, multiple sequence alignment, and working with common file formats. The modules provide reusable subroutines and methods to parse data, access databases, and perform other common bioinformatics operations. BioPerl code is portable and can be easily incorporated into scripts and programs. The modules are organized into groups and adhere to object-oriented principles in Perl, with classes, methods, and object blessed references.
This document discusses various data types and data structures in Perl, including scalars, arrays, hashes, references, and object-oriented programming. It provides examples of creating sequences and sequence objects using BioPerl, parsing multi-line sequence data, and accessing GenBank sequence data through the Bio::DB::GenBank module.
This document provides a summary of the Standard PHP Library (SPL) which is a collection of classes and interfaces that provide solutions to common problems. It discusses key SPL components like arrays, iterators, exceptions, maps, sets, heaps, queues and stacks. The SPL aims to standardize data access and provides interfaces for traversing data structures, working with files and implementing patterns like Observer.
SPL: The Undiscovered Library - DataStructuresMark Baker
The document provides an overview of the Standard PHP Library (SPL) data structures in PHP, including Fixed Arrays, Doubly-Linked Lists, Stacks, and Queues. It discusses what each data structure is, common use cases, time complexities of key operations, and examples of implementing each with native PHP arrays versus SPL classes. The document shows that SPL data structures can offer improved performance and lower memory usage compared to traditional PHP arrays in many cases.
This document provides an overview of new features introduced in PHP 5.3 for the Standard PHP Library (SPL). It discusses several new SPL container classes like SplFixedArray, SplDoublyLinkedList, SplStack, SplQueue, SplHeap, SplPriorityQueue, and SplObjectStorage. For each container class, it describes what it is, when it should be used, provides example code, and benchmarks the execution speed and memory usage compared to traditional PHP arrays. The document concludes by thanking Etienne Kneuss for his work on the new SPL features and listing some additional SPL resources and possible future enhancements.
BioPerl is an open source collection of Perl modules for bioinformatics. It contains over 550 modules covering tasks like sequence analysis, multiple sequence alignment, and working with common file formats. The modules provide reusable subroutines and methods to parse data, access databases, and perform other common bioinformatics operations. BioPerl code is portable and can be easily incorporated into scripts and programs. The modules are organized into groups and adhere to object-oriented principles in Perl, with classes, methods, and object blessed references.
This document discusses various data types and data structures in Perl, including scalars, arrays, hashes, references, and object-oriented programming. It provides examples of creating sequences and sequence objects using BioPerl, parsing multi-line sequence data, and accessing GenBank sequence data through the Bio::DB::GenBank module.
PHP 7 – What changed internally? (Forum PHP 2015)Nikita Popov
One of the main selling points of PHP 7 is greatly improved performance, with many real-world applications now running twice as fast… But where do these improvements come from?
At the core of PHP 7 lies an engine rewrite with focus on improving memory usage and performance. This talk provides an overview of the most significant changes, briefly covering everything from data structure changes, over enhancements in the executor, to the new compiler implementation.
This is brief presentation on the Scala programming language. It is aimed at Java developers who are curious about Scala. It was given at a San Francisco Java User Group in January 2009.
This document provides an introduction to JavaScript web development. It covers key concepts like AJAX architecture, unobtrusive JavaScript, CSS, and how they interact. JavaScript allows dynamic interaction and filtering of HTML content. The document demonstrates JavaScript features like variables, arrays, objects, JSON, loops, functions, and more. It also discusses advantages of CSS for layout and separation of concerns from HTML.
This document provides an introduction to Scala. It discusses:
- Who the author is and their background with Scala and Spark
- Why Scala is a scalable language that runs on the JVM and supports object oriented and functional programming
- How to install Scala and use the Scala interpreter
- Basic Scala syntax like defining values and variables, type inference, strings, tuples, objects, importing classes
- Common functions and operations like map, reduce, anonymous functions, pattern matching
- Code samples for RDD relations and SparkPi
- Tips for using Scala in practice including SBT and good IDEs like IntelliJ
This document provides an introduction and overview of the Google Guava libraries. It describes what Guava is, why developers would use it, how it compares to Apache Commons libraries, its design principles and release cycles. It provides descriptions of some key Guava packages and classes for common Java utilities, including Preconditions, Optional, Objects, Strings, Charsets, CaseFormat, CharMatcher, Joiner and Splitter. The document aims to explain the purpose and usage of important Guava functionality.
PHP data structures (and the impact of php 7 on them), phpDay Verona 2015, ItalyPatrick Allaert
We all have certainly learned data structures at school: arrays, lists, sets, stacks, queues (LIFO/FIFO), heaps, associative arrays, trees, ... and what do we mostly use in PHP? The "array"! In most cases, we do everything and anything with it but we stumble upon it when profiling code. During this session, we'll learn again to use the structures appropriately, leaning closer on the way to employ arrays, the SPL and other structures from PHP extensions as well.The impact that PHP 7 should have on data structures will be introduced as well.
If your not using an ORM (object relational mapper) and are still writing SQL by hand, here's what you need to know.
An introduction into DBIx::Class and some of the concepts and goodies you should be aware off.
This document discusses PHP functions and arrays. It covers basic syntax for defining functions, returning values from functions, and variable scope. It also covers array basics like indexing and printing arrays, as well as operations like sorting, searching, and iterating over arrays. Functions for stacks, queues and sets using arrays are also demonstrated. The document is a comprehensive reference for working with functions and arrays in PHP.
This document provides an introduction and overview of DBIx::Class, an ORM (object relational mapper) for Perl. It discusses setting up tables for an authors and books example database, and performing CRUD (create, read, update, delete) operations both manually using SQL and using DBIx::Class. It also covers creating models with Schema::Loader, debugging, overloading result and result set classes, and inflating/deflating columns.
Slides for my recent presentation at the CASE meetup, May 21st. Discusses functional programming features in Scala. Goes from basic FP features like higher-order functions all the way through to monads.
As a result of an engine rewrite with focus on more efficient data structures, PHP 7 offers much improved performance and memory usage. This session describes important aspects of the new implementation and how it compares to PHP 5. A particular focus will be on the representation of values, arrays and objects.
This is the third set of slightly updated slides from a Perl programming course that I held some years ago.
I want to share it with everyone looking for intransitive Perl-knowledge.
A table of content for all presentations can be found at i-can.eu.
The source code for the examples and the presentations in ODP format are on https://github.com/kberov/PerlProgrammingCourse
Perl, a cross-platform, open-source computer programming language used widely in the commercial and private computing sectors. Perl is a favourite among Web developers for its flexible, continually evolving text-processing and problem-solving capabilities.
This document provides information about arrays in PHP. It discusses numeric arrays, associative arrays, and multidimensional arrays. It explains how to create, iterate through, modify, and handle arrays in PHP. Various functions are described, including count(), print_r(), foreach(), array_slice(), and array_merge(). Multidimensional arrays are given as examples to demonstrate nested arrays and how to access elements within them using loops. Methods for splitting and merging arrays are also covered.
Proposals for new function in Java SE 9 and beyondBarry Feigenbaum
Slides that propose new features for future Java SE editions (9+). Includes proposals for language and JRE enhancements across multiple domains such as ease-of-use, reduced boilerplate, increased conciseness, improved concurrency and capability.
The goal is to make Java/JRE into a state-of-the-art platform for modern software development.
This document provides an overview of the Perl programming language. It introduces key Perl concepts like data types, scalars, arrays, hashes, flow control, input/output, and operators. Perl allows variables to be of any type and handles automatic type conversion. It supports common data structures like arrays and associative arrays (hashes). Subroutines provide modularity and scoping rules determine variable visibility. Perl scripts can process command line arguments, files, and network connections.
Roles are an excellent object-oriented tool both for allomorphism and for
reuse.
Roles facilitate allomorphism by favoring "does this object do X" versus "is
this object a subclass of X". You often care more about capability than
inheritance. In a sense, roles encode types better than inheritance.
Roles also provide an excellent faculty for reuse. This effectively eliminates
multiple inheritance, which is often the only solution for sharing code between
unrelated classes.
Roles can combine with conflict detection. This eliminates accidental shadowing
of methods that is painful with multiple inheritance and mixins.
Parameterized roles (via MooseX::Role::Parameterized) improve the reusability
of roles by letting each consumer cater the role to its needs. This does
sacrifice some allomorphism, but there are ways to restore it.
PHP is a server-side scripting language commonly used for web development. It was created in 1994 and has evolved significantly over time. PHP scripts can output HTML content as well as dynamically generate pages based on external data sources. PHP supports variables, arrays, operators, flow control structures, and functions to build robust web applications. It allows embedding code snippets directly into HTML files or calling HTML from PHP scripts.
Building a horizontally scalable API in phpWade Womersley
This document discusses building a horizontally scalable API in PHP. It covers using MySQL with binary hashes and separating data logically. It also discusses using CouchDB and features like stale views and document update handlers. It provides an example CouchDB update function. Additional topics include caching with Varnish and Membase, using the Zend Framework REST controller, and implementing API methods. The document also offers tips on PHP requests, exceptions, testing with JMeter, and links for further resources.
“Insulin” for Scala’s Syntactic DiabetesTzach Zohar
See http://www.scalapeno.org.il/#!tzach-zohar/jwhyy:
One of the most common criticisms of Scala, and indeed one of the most concerning ones - is its "Syntactic Diabetes": There's so much "Syntactic Sugar" - so many different ways to code the same thing - that developers might easily get lost. This makes many developers and organizations weary of adopting Scala as a primary language, fearing the training and maintenance costs this problem might entail.
In this talk we'll explain the problem through some real-life examples from Kenshoo's 2- year experience with Scala, and move on to the solutions applied at Kenshoo and elsewhere to resolve this. Among these, we'll discuss style guides, automatic style checkers, Odersky's "Scala Levels", code review tips and more.
If you're a developer thinking about trying Scala out, or a Scala enthusiast trying to convince your teammates or bosses to do so - this talk is for you.
This document provides an overview of the Scala programming language, including what it is, its toolchain, basic syntax examples comparing it to Java, built-in support for XML, actors, and advantages and disadvantages. Scala is an object-functional language that runs on the JVM and is intended to be a "better Java". It has features like XML support, an actor model for concurrency, and combines object-oriented and functional programming paradigms, but its ecosystem and compiler can be slow and syntax for some functional features is verbose.
PHP 7 – What changed internally? (Forum PHP 2015)Nikita Popov
One of the main selling points of PHP 7 is greatly improved performance, with many real-world applications now running twice as fast… But where do these improvements come from?
At the core of PHP 7 lies an engine rewrite with focus on improving memory usage and performance. This talk provides an overview of the most significant changes, briefly covering everything from data structure changes, over enhancements in the executor, to the new compiler implementation.
This is brief presentation on the Scala programming language. It is aimed at Java developers who are curious about Scala. It was given at a San Francisco Java User Group in January 2009.
This document provides an introduction to JavaScript web development. It covers key concepts like AJAX architecture, unobtrusive JavaScript, CSS, and how they interact. JavaScript allows dynamic interaction and filtering of HTML content. The document demonstrates JavaScript features like variables, arrays, objects, JSON, loops, functions, and more. It also discusses advantages of CSS for layout and separation of concerns from HTML.
This document provides an introduction to Scala. It discusses:
- Who the author is and their background with Scala and Spark
- Why Scala is a scalable language that runs on the JVM and supports object oriented and functional programming
- How to install Scala and use the Scala interpreter
- Basic Scala syntax like defining values and variables, type inference, strings, tuples, objects, importing classes
- Common functions and operations like map, reduce, anonymous functions, pattern matching
- Code samples for RDD relations and SparkPi
- Tips for using Scala in practice including SBT and good IDEs like IntelliJ
This document provides an introduction and overview of the Google Guava libraries. It describes what Guava is, why developers would use it, how it compares to Apache Commons libraries, its design principles and release cycles. It provides descriptions of some key Guava packages and classes for common Java utilities, including Preconditions, Optional, Objects, Strings, Charsets, CaseFormat, CharMatcher, Joiner and Splitter. The document aims to explain the purpose and usage of important Guava functionality.
PHP data structures (and the impact of php 7 on them), phpDay Verona 2015, ItalyPatrick Allaert
We all have certainly learned data structures at school: arrays, lists, sets, stacks, queues (LIFO/FIFO), heaps, associative arrays, trees, ... and what do we mostly use in PHP? The "array"! In most cases, we do everything and anything with it but we stumble upon it when profiling code. During this session, we'll learn again to use the structures appropriately, leaning closer on the way to employ arrays, the SPL and other structures from PHP extensions as well.The impact that PHP 7 should have on data structures will be introduced as well.
If your not using an ORM (object relational mapper) and are still writing SQL by hand, here's what you need to know.
An introduction into DBIx::Class and some of the concepts and goodies you should be aware off.
This document discusses PHP functions and arrays. It covers basic syntax for defining functions, returning values from functions, and variable scope. It also covers array basics like indexing and printing arrays, as well as operations like sorting, searching, and iterating over arrays. Functions for stacks, queues and sets using arrays are also demonstrated. The document is a comprehensive reference for working with functions and arrays in PHP.
This document provides an introduction and overview of DBIx::Class, an ORM (object relational mapper) for Perl. It discusses setting up tables for an authors and books example database, and performing CRUD (create, read, update, delete) operations both manually using SQL and using DBIx::Class. It also covers creating models with Schema::Loader, debugging, overloading result and result set classes, and inflating/deflating columns.
Slides for my recent presentation at the CASE meetup, May 21st. Discusses functional programming features in Scala. Goes from basic FP features like higher-order functions all the way through to monads.
As a result of an engine rewrite with focus on more efficient data structures, PHP 7 offers much improved performance and memory usage. This session describes important aspects of the new implementation and how it compares to PHP 5. A particular focus will be on the representation of values, arrays and objects.
This is the third set of slightly updated slides from a Perl programming course that I held some years ago.
I want to share it with everyone looking for intransitive Perl-knowledge.
A table of content for all presentations can be found at i-can.eu.
The source code for the examples and the presentations in ODP format are on https://github.com/kberov/PerlProgrammingCourse
Perl, a cross-platform, open-source computer programming language used widely in the commercial and private computing sectors. Perl is a favourite among Web developers for its flexible, continually evolving text-processing and problem-solving capabilities.
This document provides information about arrays in PHP. It discusses numeric arrays, associative arrays, and multidimensional arrays. It explains how to create, iterate through, modify, and handle arrays in PHP. Various functions are described, including count(), print_r(), foreach(), array_slice(), and array_merge(). Multidimensional arrays are given as examples to demonstrate nested arrays and how to access elements within them using loops. Methods for splitting and merging arrays are also covered.
Proposals for new function in Java SE 9 and beyondBarry Feigenbaum
Slides that propose new features for future Java SE editions (9+). Includes proposals for language and JRE enhancements across multiple domains such as ease-of-use, reduced boilerplate, increased conciseness, improved concurrency and capability.
The goal is to make Java/JRE into a state-of-the-art platform for modern software development.
This document provides an overview of the Perl programming language. It introduces key Perl concepts like data types, scalars, arrays, hashes, flow control, input/output, and operators. Perl allows variables to be of any type and handles automatic type conversion. It supports common data structures like arrays and associative arrays (hashes). Subroutines provide modularity and scoping rules determine variable visibility. Perl scripts can process command line arguments, files, and network connections.
Roles are an excellent object-oriented tool both for allomorphism and for
reuse.
Roles facilitate allomorphism by favoring "does this object do X" versus "is
this object a subclass of X". You often care more about capability than
inheritance. In a sense, roles encode types better than inheritance.
Roles also provide an excellent faculty for reuse. This effectively eliminates
multiple inheritance, which is often the only solution for sharing code between
unrelated classes.
Roles can combine with conflict detection. This eliminates accidental shadowing
of methods that is painful with multiple inheritance and mixins.
Parameterized roles (via MooseX::Role::Parameterized) improve the reusability
of roles by letting each consumer cater the role to its needs. This does
sacrifice some allomorphism, but there are ways to restore it.
PHP is a server-side scripting language commonly used for web development. It was created in 1994 and has evolved significantly over time. PHP scripts can output HTML content as well as dynamically generate pages based on external data sources. PHP supports variables, arrays, operators, flow control structures, and functions to build robust web applications. It allows embedding code snippets directly into HTML files or calling HTML from PHP scripts.
Building a horizontally scalable API in phpWade Womersley
This document discusses building a horizontally scalable API in PHP. It covers using MySQL with binary hashes and separating data logically. It also discusses using CouchDB and features like stale views and document update handlers. It provides an example CouchDB update function. Additional topics include caching with Varnish and Membase, using the Zend Framework REST controller, and implementing API methods. The document also offers tips on PHP requests, exceptions, testing with JMeter, and links for further resources.
“Insulin” for Scala’s Syntactic DiabetesTzach Zohar
See http://www.scalapeno.org.il/#!tzach-zohar/jwhyy:
One of the most common criticisms of Scala, and indeed one of the most concerning ones - is its "Syntactic Diabetes": There's so much "Syntactic Sugar" - so many different ways to code the same thing - that developers might easily get lost. This makes many developers and organizations weary of adopting Scala as a primary language, fearing the training and maintenance costs this problem might entail.
In this talk we'll explain the problem through some real-life examples from Kenshoo's 2- year experience with Scala, and move on to the solutions applied at Kenshoo and elsewhere to resolve this. Among these, we'll discuss style guides, automatic style checkers, Odersky's "Scala Levels", code review tips and more.
If you're a developer thinking about trying Scala out, or a Scala enthusiast trying to convince your teammates or bosses to do so - this talk is for you.
This document provides an overview of the Scala programming language, including what it is, its toolchain, basic syntax examples comparing it to Java, built-in support for XML, actors, and advantages and disadvantages. Scala is an object-functional language that runs on the JVM and is intended to be a "better Java". It has features like XML support, an actor model for concurrency, and combines object-oriented and functional programming paradigms, but its ecosystem and compiler can be slow and syntax for some functional features is verbose.
Core Software Group and the Denver Plone Users Group hosted the Denver World Plone Day on April 22, 2009 at the Tivoli Center in downtown Denver. The presentation was given by Chris Crownhart and talked about Core Software Group's custom development techniques for some of the Plone sites we have built.
Scala idiomatic data binding generator for JSON.
Courier is a language binding for Scala for the Pegasus schema and data system.
Pegasus contains an expressive schema language for JSON structured data that is based on the Avro schema language, but adds optional fields a few other conveniences to make it easy to define the structure of natural looking JSON. Pegasus also has a rich feature set including schema based validation, data translation between multiple data formats, schema compatibility with Avro, and generated Java data bindings.
By using Courier, all the features of Pegasus can be leveraged by Scala developers but with Scala idiomatic data bindings that look and feel natural to a Scala developer.
This document summarizes a talk given about Nokia's migration to Scala for its Places API. The key points are:
1) Nokia migrated its Places API codebase to Scala to take advantage of Scala's features like its powerful type system, immutable data structures, and functional programming capabilities.
2) The migration was done gradually over time while continuing to develop new features. They discovered many benefits of Scala along the way like improved test readability and JSON parsing capabilities.
3) Nokia uses Scala features like case classes, options, and functions to model data and add type safety to its codebase. This uncovered bugs that would have been hard to find in Java.
The document describes the Xopus JavaScript application framework. The framework aims to address problems with structuring JavaScript programs by introducing object-oriented paradigms like modules, classes, and dependencies. It allows writing JavaScript code in an extended subset with OO features, compiles it to flattened code, and supports unit testing and other program analysis tools. The framework provides a consistent way to structure programs into packages and make dependencies explicit without runtime overhead.
Python - Getting to the Essence - Points.com - Dave Parkpointstechgeeks
This document provides an introduction to Python and compares sorting lists in Java and Python. It demonstrates how to sort a list of tuples by different elements in Python using key functions with the built-in sorted() function. It also covers Python concepts like lists, dictionaries, list comprehensions, objects, built-in functions, and more.
A hands-on introduction to the ELF Object file formatrety61
In our 6th semester we developed miASMa - a 2 pass Macro Assembler for an x86 machine. miASMa generates Relocatable Object Files that conforming to the ELF Format.
This document provides an overview of Scala, covering object-oriented programming concepts, functional programming concepts, and how Scala combines both paradigms. It discusses key Scala features like type inference, anonymous classes, generics, and immutable collections. It provides examples of common programming tasks like filtering, mapping, reducing collections as well as examples of recursion and higher-order functions. The document demonstrates how to implement functional objects like an immutable Rational number class in both Java and Scala style.
The document discusses how to rewrite Java code in Scala by taking advantage of Scala's functional programming features like case classes, pattern matching, filters, maps, folds, and generators to make the code more concise and readable. It provides examples of rewriting common Java constructs like filtering lists, mapping over lists, and reducing lists using these Scala features.
This document describes how to analyze web server log files using the Pig Latin scripting language on Apache Hadoop. It provides examples of Pig Latin scripts to analyze logs and extract insights such as the top 50 external referrers, top search terms from Bing and Google, and total requests and bytes served by hour. Pig Latin scripts allow expressing data analysis programs for large datasets in a high-level language that can be optimized and executed in parallel on Hadoop for scalability.
Puppet Camp Amsterdam 2015: The Power of Puppet 4 (Beginner) Puppet
The document discusses new features and changes in Puppet 4, including Puppet Server running on JVM, packaging improvements, environment configuration options, language features like lambdas and HEREDOC support, type validation, and deprecations like node inheritance and hyphens in names. It highlights four key powers of Puppet 4: performance, scalability, measurability, and flexibility in dealing with complex data types natively. Upgrading to Puppet 4 requires changes to comply with deprecations and testing to ensure compatibility.
The document discusses new features and changes in Puppet 4, including Puppet Server running on JVM, packaging improvements, environment configuration options, language features like lambdas and HEREDOC support, type validation, and deprecations like node inheritance and hyphens in names. It highlights four key powers of Puppet 4: performance, scalability, measurability, and flexibility in dealing with complex data types natively. Upgrading to Puppet 4 requires changes to comply with deprecations and testing to ensure compatibility.
The document introduces MongoKit, a Python ODM (Object Document Mapper) for MongoDB that provides a simple and powerful way to define and work with document schemas through Python classes. Key features highlighted include inheritance and polymorphism support, dot notation access, automatic reference of embedded documents, GridFS support, and internationalization. The roadmap outlines future plans such as locked fields, fixtures generation, and RDF export before a 1.0 release.
The document discusses JavaScript, describing it as:
- Created in 1995 by Netscape and based on the ECMAScript standard.
- A dynamic, weakly typed, object-oriented programming language that is often misunderstood.
- Used for client-side scripting of webpages as well as server-side and application scripting.
- Commonly disliked due to past bad practices, implementations, and browser differences, but these issues are improving over time.
Genomic analysis applications, libraries, and design patterns for Spark and Scala.
Presented at Scala Symposium 2017: https://conf.researchr.org/event/scala-2017/scala-2017-papers-genomic-data-analysis-in-scala-open-source-talk-
Javascript is a dynamic, loosely typed scripting language with C/Java-like syntax that uses prototypical inheritance rather than classes. It supports objects, arrays, functions, numbers, strings, booleans, null, and undefined data types. Class-like structures can be created using constructor functions and prototypes. Namespacing is important to avoid cluttering the global object. Well-designed widgets separate concerns into small stateful objects and maximize collection usage. JSON is commonly used for data interchange and is faster and less verbose than XML. Popular libraries include jQuery, Prototype, MooTools and YUI for components, widgets and page enhancement.
The document discusses BioPerl, an open source collection of Perl modules for bioinformatics tasks. It provides examples of using BioPerl to work with sequence objects, read sequences from files in different formats, and retrieve sequences from GenBank. Methods are demonstrated for looping through sequences, converting file formats, and calculating properties like isoelectric points. The most acidic and basic amino acids can be identified by isoelectric point, and there is a biological explanation for these results.
Essentials of Automations: Exploring Attributes & Automation ParametersSafe Software
Building automations in FME Flow can save time, money, and help businesses scale by eliminating data silos and providing data to stakeholders in real-time. One essential component to orchestrating complex automations is the use of attributes & automation parameters (both formerly known as “keys”). In fact, it’s unlikely you’ll ever build an Automation without using these components, but what exactly are they?
Attributes & automation parameters enable the automation author to pass data values from one automation component to the next. During this webinar, our FME Flow Specialists will cover leveraging the three types of these output attributes & parameters in FME Flow: Event, Custom, and Automation. As a bonus, they’ll also be making use of the Split-Merge Block functionality.
You’ll leave this webinar with a better understanding of how to maximize the potential of automations by making use of attributes & automation parameters, with the ultimate goal of setting your enterprise integration workflows up on autopilot.
"$10 thousand per minute of downtime: architecture, queues, streaming and fin...Fwdays
Direct losses from downtime in 1 minute = $5-$10 thousand dollars. Reputation is priceless.
As part of the talk, we will consider the architectural strategies necessary for the development of highly loaded fintech solutions. We will focus on using queues and streaming to efficiently work and manage large amounts of data in real-time and to minimize latency.
We will focus special attention on the architectural patterns used in the design of the fintech system, microservices and event-driven architecture, which ensure scalability, fault tolerance, and consistency of the entire system.
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor IvaniukFwdays
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
Must Know Postgres Extension for DBA and Developer during MigrationMydbops
Mydbops Opensource Database Meetup 16
Topic: Must-Know PostgreSQL Extensions for Developers and DBAs During Migration
Speaker: Deepak Mahto, Founder of DataCloudGaze Consulting
Date & Time: 8th June | 10 AM - 1 PM IST
Venue: Bangalore International Centre, Bangalore
Abstract: Discover how PostgreSQL extensions can be your secret weapon! This talk explores how key extensions enhance database capabilities and streamline the migration process for users moving from other relational databases like Oracle.
Key Takeaways:
* Learn about crucial extensions like oracle_fdw, pgtt, and pg_audit that ease migration complexities.
* Gain valuable strategies for implementing these extensions in PostgreSQL to achieve license freedom.
* Discover how these key extensions can empower both developers and DBAs during the migration process.
* Don't miss this chance to gain practical knowledge from an industry expert and stay updated on the latest open-source database trends.
Mydbops Managed Services specializes in taking the pain out of database management while optimizing performance. Since 2015, we have been providing top-notch support and assistance for the top three open-source databases: MySQL, MongoDB, and PostgreSQL.
Our team offers a wide range of services, including assistance, support, consulting, 24/7 operations, and expertise in all relevant technologies. We help organizations improve their database's performance, scalability, efficiency, and availability.
Contact us: info@mydbops.com
Visit: https://www.mydbops.com/
Follow us on LinkedIn: https://in.linkedin.com/company/mydbops
For more details and updates, please follow up the below links.
Meetup Page : https://www.meetup.com/mydbops-databa...
Twitter: https://twitter.com/mydbopsofficial
Blogs: https://www.mydbops.com/blog/
Facebook(Meta): https://www.facebook.com/mydbops/
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
The Microsoft 365 Migration Tutorial For Beginner.pptxoperationspcvita
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
High performance Serverless Java on AWS- GoTo Amsterdam 2024Vadym Kazulkin
Java is for many years one of the most popular programming languages, but it used to have hard times in the Serverless community. Java is known for its high cold start times and high memory footprint, comparing to other programming languages like Node.js and Python. In this talk I'll look at the general best practices and techniques we can use to decrease memory consumption, cold start times for Java Serverless development on AWS including GraalVM (Native Image) and AWS own offering SnapStart based on Firecracker microVM snapshot and restore and CRaC (Coordinated Restore at Checkpoint) runtime hooks. I'll also provide a lot of benchmarking on Lambda functions trying out various deployment package sizes, Lambda memory settings, Java compilation options and HTTP (a)synchronous clients and measure their impact on cold and warm start times.
This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
The Department of Veteran Affairs (VA) invited Taylor Paschal, Knowledge & Information Management Consultant at Enterprise Knowledge, to speak at a Knowledge Management Lunch and Learn hosted on June 12, 2024. All Office of Administration staff were invited to attend and received professional development credit for participating in the voluntary event.
The objectives of the Lunch and Learn presentation were to:
- Review what KM ‘is’ and ‘isn’t’
- Understand the value of KM and the benefits of engaging
- Define and reflect on your “what’s in it for me?”
- Share actionable ways you can participate in Knowledge - - Capture & Transfer
Northern Engraving | Nameplate Manufacturing Process - 2024Northern Engraving
Manufacturing custom quality metal nameplates and badges involves several standard operations. Processes include sheet prep, lithography, screening, coating, punch press and inspection. All decoration is completed in the flat sheet with adhesive and tooling operations following. The possibilities for creating unique durable nameplates are endless. How will you create your brand identity? We can help!
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfChart Kalyan
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
"Choosing proper type of scaling", Olena SyrotaFwdays
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...Alex Pruden
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
Thea: Processing OWL Ontologies - An application of logic programming
1. Processing OWL2 ontologies using Thea: An application of logic programming March 2010 Vangelis Vassiliadis semanticweb.gr 1
2. Contents - Outline Why – Motivation Context: Semantic Web Applications Tools OWL Tool survey – What we do with them Model, I/O (Parser / Serialisation), Query, Manipulate, Reasoning (Inference) What – can we do with Thea Use of Prolog as an application programming language (host language), rather than as an OWL reasoning engine Get OWL ontologies (ABOX + TBOx) in a prolog program. Use them: Query – Reason Script operations Build applications How – Implementation Application examples - potential 2
6. Why Prolog? Fact database (Store) Thea uses Prolog as a host programming language, not as a reasoning system, but Can also be used as a Rule-based system. (Reason) SLD resolution, backward chaining. Declarative features, pattern matching (Query) Scripting language – (Manipulation) SWI-Prolog implementation, Semweb package, efficient RDF library (Parse – Serialize) (Load, Save) Http servers Own experience 6
7. Thea project Prolog library, organized in modules. Depends heavily on SWI-prolog libraries RDF/XML parsing, serializations, http-client Development History Started 2004 Version 0.5.5 (final for OWL1) in 2006 / SourceForge Major redesign for OWL2 in 2009 (presented in OWLED 2009) / Github Circa 2000 downloads. OWL2 axioms as Prolog facts based on the OWL functional syntax. Extensions / libraries to support: java OWL API SWRL translation to DLP RL Reasoning (Forward and backward chaining) OWLLink – act as an OWLLink client. Small set of applications / demos Minimum documentation 7
14. Manipulate OWL ontologies 14 Programmatic processing or scripting of ontologies for tasks that would be tedious and repetitive to do by hand: Enforce disjointUnion with exceptions setof(X,(subClassOf(X,Y), annotationAssertion(status,X,unvetted)), Xs), assert_axiom(disjointUnion(Y,Xs)) Populate Abox: generate Axioms from external data: read(Stream, PVTerm), PVTerm :=.. [C,I|PVs], assert_axiom(classAssertion(C,I), forall(member(P-V,PVs), assert_axiom(propertyAssertion(P,I,V)),fail. Assumes Stream contains terms of the form: Class(IndividualID, Property1-Value1, …, PropertyN-ValueN).
15. Reasoning with OWL 15 What is Inference? Broadly speaking, inference on the Semantic Web can be characterized by discovering new relationships. On the Semantic Web, data is modeled as a set of (named) relationships between resources. “Inference” means that automatic procedures can generate new relationships based on the data and based on some additional information in the form of a vocabulary, e.g., a set of rules. Whether the new relationships are explicitly added to the set of data, or are returned at query time, is an implementation issue. From (www.w3c.org) SW activity OWL Reasoning Consistency checking Hierarchy classification Individual classification OWL (DL) vs. Logic Programming theoretical issues Tableaux algorithms (satisfiability checking). Open world vs. Closed world assumption Negation as Failure and Monotonicity Unique Name Assumption
17. OWLAPI via jpl 17 JPL is a SWI library to use java from within SWI prolog: Jpl_new(+Class, +Args, -Value) Jpl_call(+Class, +Method, +Args, -RetunrValue) Examples using OWLAPI to save files owl_parse_rdf('testfiles/Hydrology.owl'), % parse using prolog/thea create_factory(Man,Fac), build_ontology(Man,Fac,Ont), save_ontology(Man,Ont,'file:///tmp/foo'). % save using owlapi Using external pellet reasoner create_reasoner(Man,pellet,Reasoner), create_factory(Man,Fac), build_ontology(Man,Fac,Ont), reasoner_classify(Reasoner,Man,Ont), save_ontology(Man,Ont,'file:///tmp/foo'). writeln(classifying), reasoner_classify(Reasoner,Man,Ont), writeln(classified), class(C), writeln(c=C), reasoner_subClassOf(Reasoner,Fac,C,P), writeln(p=P).
18. OWL Link support 18 Client Application OWL Reasoner Request Response XML based Interface based on OWL2 / XML* Successor to DIG, Tell* and Ask requests. Results translated to Axioms Example: % owl_link(+ReasonerURL, +Request:list, -Response:list, +Options:list) … tell('http://owllink.org/examples/KB_1', [subClassOf('B','A'), subClassOf('C','A'), equivalentClasses(['D','E']), classAssertion('A','iA'), subClassOf('C','A') ]), getAllClasses('http://owllink.org/examples/KB_1'), getEquivalentClasses('http://owllink.org/examples/KB_1','D'), setOfClasses([], [owl:Thing, C, B, E, A, D]), setOfClasses([], [E, D]),
19. Description Logic Programs 19 Grossof and Horrocs, define mapping rules between DL and LP Example An ontology which contains the axioms: subClassOf(cat, mammal). classAssertion(cat, mr_whiskers). inverseProperties(likes,liked_by). will be converted to a program such as: mammal(X) :- cat(X). cat(mr_whiskers). likes(X,Y) :- liked_by(Y,X). liked_by(X,Y) :- likes(Y,X).
20. Thea RL rule reasoning 20 RL Profile, RL/RDF rules: Scalable reasoning, trade full expressivity of the language for efficiency. Syntactic subset of OWL 2 which is amenable to implementation using rule-based technologies partial axiomatization of the OWL 2 RDF-Based Semantics in the form of first-order implications inspired by Description Logic Programs Implementation Declarative rule definition (entailments): entails(Rule, AntecedentList, ConsequenttList) entails(prp-dom, [propertyDomain(P,C),propertyAssertion(P,X,_)],[classAssertion(C,X)]). entails(prp-rng, [propertyRange(P,C),propertyAssertion(P,_,Y)],[classAssertion(C,Y)]). Forward Chaining, Crude non-optimized, Repeat cycle until nothing has been entailed forall((entails(Rule,Antecedants,Consequents), hold(Antecedants),member(Consequent,Consequents)), assert_u(entailed(Consequent,Rule,Antecedants)). Backward Chaining %% is_entailed(+Axiom,-Explanation) is nondet % Axiom is entailed if either holds or is a consequent in an % entails/3 rule and all the antecedants are entailed. Simulates tabling: If an Axiom has been entailed it is not tried again to revents endless loops for e.g. s :- s, t.
21. SWRL implementation 21 Semantic Web Rules. To extend the set of OWL axioms to include Horn-like rules. It thus enables Horn-like rules to be combined with an OWL knowledge base. From (SWRL submission spec) Thea implementation Implies/2 fact to hold rules: implies(?Antecedent:list(swrlAtom), ?Consequent:list(swrlAtom)) Convert a prolog clause to SWRL rule Convert an SWRL rule to OWL axioms ?- prolog_clause_to_swrl_rule((hasUncle(X1,X3):- hasParent(X1,X2),hasBrother(X2,X3)),SWRL), swrl_to_owl_axioms(SWRL,Axiom). X1 = v(1), X3 = v(2), X2 = v(3), SWRL = implies(['_d:hasParent'(v(1), v(3)), '_d:hasBrother'(v(3), v(2))], '_d:hasUncle'(v(1), v(2))), Axiom = [subPropertyOf(propertyChain(['_d:hasParent', '_d:hasBrother']), '_d:hasUncle')].
22. Comparison with other systems SPARQL No means of updating data Too RDF-centric for querying complex Tboxes Lack of ability to name queries (as in relational views) Lack of aggregate queries Lack of programmability But … extensions (SPARQL update) OPPL (DSL): Simple, SQL – like In Protégé… Thea offers a complete programming language. 22
23. Comparison with OWLAPI OWLAPI: Full featured. Mature. Java API (OO language) Thea: declarative. offers bridge via JPL. easy scripting 23 Memory usage Load time (secs)
24. Applications OBO label generation (Bioinformatics) eLevator (Product configuration) Open Calais (Semantic Web) Linked data (Semantic Web) 24
25. Consumers Customers Configuration Engine Service eLevator Customer Portal Customer eServices Financial data Order status Order e-guide Enterprise System PLM, CRM, ERP Accounting… OrderEntry Elevator Cabin configuration Modeling and Visualization Enterprise Internet 25 ASP / SaaS
37. Linked data Use URIs as names for things Use HTTP URIs so that people can look up those names. When someone looks up a URI, provide useful information, using the standards (RDF, SPARQL) Include links to other URIs. so that they can discover more things. 32
38. Conclusions Status and Next steps OWL2 support within Prolog Full support of OWL2 structural syntax Easy programmatic access to query and process Ontologies within Prolog. Import and export to different formats Modules for external reasoning support Next Steps Improvements in efficiency Complete modules (other I/Os, Reasoners etc) Complete documentation Portability (other Prolog systems) Use and feedback from the community… Applications 33
39. more about Thea github.com/vangelisv/thea www.semanticweb.gr/thea 34