Programming/Kdb/Resources - Revision history

Admin at 22:26, 21 December 2021

2021-12-21T22:26:12Z

Admin at 08:07, 2 July 2021

2021-07-02T08:07:24Z

← Older revision		Revision as of 08:07, 2 July 2021
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	: STAC-M3 subjects and technology stack to the same rigorous standards.		: STAC-M3 subjects and technology stack to the same rigorous standards.

			* <span class="plainlinks">[https://stacresearch.com/stac-testing-tools Other STAC benchmarks]</span> include time sync (STAC-TS), tick-to-trade (STAC-T1), network I/O (STAC-N1, -T0), feed handlers (STAC-M1), data distribution (STAC-M2), risk computation (STAC-A2), backtesting (STAC-A3), tick analytics (STAC-M3).

Admin at 08:02, 2 July 2021

2021-07-02T08:02:16Z

← Older revision		Revision as of 08:02, 2 July 2021
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	: It works well with large tables (millions of rows to billions), multiple tables connected by joins, structured data, numerical data, and complex queries and aggregations.		: It works well with large tables (millions of rows to billions), multiple tables connected by joins, structured data, numerical data, and complex queries and aggregations.

			=Benchmarks=

			* The <span class="plainlinks">[https://stacresearch.com/m3 STAC-M3 Benchmark suite] </span> of the <span class="plainlinks">[https://stacresearch.com/ Securities Technology Analysis Center (STAC)]</span> is the industry standard for testing solutions that enable high-speed analytics on time series data, such as tick-by-tick market data (aka "tick database" stacks).

			: New technologies continue to advance the speed of these workloads or reduce their cost. These include new and improved database software; new kinds of non-volatile memory, and new ways to incorporate them into the stack; new processors, memory, and server architectures; advanced file systems; and more scaleable storage systems.

			: STAC-M3 subjects and technology stack to the same rigorous standards.

Admin: /* APL and other related languages */

2021-07-02T07:26:59Z

APL and other related languages

← Older revision		Revision as of 07:26, 2 July 2021
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	* The <span class="plainlinks">[https://britishaplassociation.org/ British APL Association (BAA)]</span> was founded in 1984 to promote a family of interactive array-programming languages noted for elegance, conciseness, and fast development speed. Many of them were derived from Kenneth Iverson's mathematical notation.		* The <span class="plainlinks">[https://britishaplassociation.org/ British APL Association (BAA)]</span> was founded in 1984 to promote a family of interactive array-programming languages noted for elegance, conciseness, and fast development speed. Many of them were derived from Kenneth Iverson's mathematical notation.
	* <span class="plainlinks">[https://vector.org.uk/ Vector]</span>—the journal of the BAA.		* <span class="plainlinks">[https://vector.org.uk/ Vector]</span>—the journal of the BAA.
	* <span class="plainlinks">[https://aplwiki.com/wiki/Main_Page APL Wiki]</span> is an online open-content wiki; that is, a voluntary association of individuals and groups working to develop a common knowledge resource.		* <span class="plainlinks">[https://aplwiki.com/wiki/Main_Page APL Wiki]</span> is an online open-content wiki; that is, a voluntary association of individuals and groups working to develop a common knowledge resource. It was launched at the end of 2006 as a MoinMoin wiki. It was created and maintained by Kai Jäger of <span class="plainlinks">[https://aplteam.com/ APL Team Ltd]</span>, and its logo derives from that of APL Team. In 2019, APL Wiki was reborn as a MediaWiki site, this time with content more in the style of Wikipedia. It is now maintained by Richard Park, but is not directly affiliated with any particular individuals, companies, or organizations. Migration of content from the <span class="plainlinks">[https://old.aplwiki.com/ old APL Wiki]</span> is ongoing.

	==A+==		==A+==

Admin: /* APL and other related languages */

2021-07-02T07:23:14Z

APL and other related languages

← Older revision		Revision as of 07:23, 2 July 2021
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	* The <span class="plainlinks">[https://britishaplassociation.org/ British APL Association (BAA)]</span> was founded in 1984 to promote a family of interactive array-programming languages noted for elegance, conciseness, and fast development speed. Many of them were derived from Kenneth Iverson's mathematical notation.		* The <span class="plainlinks">[https://britishaplassociation.org/ British APL Association (BAA)]</span> was founded in 1984 to promote a family of interactive array-programming languages noted for elegance, conciseness, and fast development speed. Many of them were derived from Kenneth Iverson's mathematical notation.
	* <span class="plainlinks">[https://vector.org.uk/ Vector]</span>—the journal of the BAA.		* <span class="plainlinks">[https://vector.org.uk/ Vector]</span>—the journal of the BAA.
	* <span class="plainlinks">[https://aplwiki.com/wiki/Main_Page APL]</span> ~~Wiki~~ is an online open-content wiki; that is, a voluntary association of individuals and groups working to develop a common knowledge resource.		* <span class="plainlinks">[https://aplwiki.com/wiki/Main_Page APL Wiki]</span> is an online open-content wiki; that is, a voluntary association of individuals and groups working to develop a common knowledge resource.

	==A+==		==A+==

Admin: /* APL and other related languages */

2021-07-02T07:22:51Z

APL and other related languages

← Older revision		Revision as of 07:22, 2 July 2021
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	* The <span class="plainlinks">[https://britishaplassociation.org/ British APL Association (BAA)]</span> was founded in 1984 to promote a family of interactive array-programming languages noted for elegance, conciseness, and fast development speed. Many of them were derived from Kenneth Iverson's mathematical notation.		* The <span class="plainlinks">[https://britishaplassociation.org/ British APL Association (BAA)]</span> was founded in 1984 to promote a family of interactive array-programming languages noted for elegance, conciseness, and fast development speed. Many of them were derived from Kenneth Iverson's mathematical notation.
	* <span class="plainlinks">[https://vector.org.uk/ Vector]</span>—the journal of the BAA.		* <span class="plainlinks">[https://vector.org.uk/ Vector]</span>—the journal of the BAA.
			* <span class="plainlinks">[https://aplwiki.com/wiki/Main_Page APL]</span> Wiki is an online open-content wiki; that is, a voluntary association of individuals and groups working to develop a common knowledge resource.

	==A+==		==A+==

Admin: /* Fun Q */

2021-07-02T06:46:03Z

Fun Q

← Older revision		Revision as of 06:46, 2 July 2021
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	Bring the power of machine learning to the fastest time-series database. ''Fun Q'' uses the powerful q programming language to implement many of the most famous machine-learning algorithms. Using a meticulously factored machine-learning library, each algorithm is broken into its basic building blocks and then rebuilt from scratch. Famous machine-learning data sets are used to motivate each chapter as advanced q idioms are introduced. Whether you are a data scientist who is new to q or a kdb+ administrator who is new to machine learning, you'll have fun learning how machine-learning algorithms can be implemented in the concise vector-functional language q. With nothing but the q binary, you'll be able to download data sets, generate plots in the q terminal and get progress-bar-style feedback as model parameters iteratively improve. In addition to being a functional introduction to machine learning algorithms in q, it is designed to be a fun introduction as well!		Bring the power of machine learning to the fastest time-series database. ''Fun Q'' uses the powerful q programming language to implement many of the most famous machine-learning algorithms. Using a meticulously factored machine-learning library, each algorithm is broken into its basic building blocks and then rebuilt from scratch. Famous machine-learning data sets are used to motivate each chapter as advanced q idioms are introduced. Whether you are a data scientist who is new to q or a kdb+ administrator who is new to machine learning, you'll have fun learning how machine-learning algorithms can be implemented in the concise vector-functional language q. With nothing but the q binary, you'll be able to download data sets, generate plots in the q terminal and get progress-bar-style feedback as model parameters iteratively improve. In addition to being a functional introduction to machine learning algorithms in q, it is designed to be a fun introduction as well!

			<blockquote>
			Data in the 21st century is like oil in the 18th century. A data scientist can save millions in labor and network infrastructure costs. She can unlock further billions in gained access to real-time insight. This is the benefit of a lab setup at the direct heart of the rig, silo, distillery and refinery complex. Evolving symbolic data notation shortens the communication lines and breaks down the complexity overhead. It is this integrative kind of technology and language that makes the world yet smaller.

			C++ has QuantLib, Python has numpy et al. Q/kdb+ now has three brand new machine learning libraries. That is, if we don't count the additional ad-hoc Github projects of cummunity members. We are seeing the start of a new era unfolding page by page. Hopefully, the three libraries will harmonize into a powerful toolbox in the hands of a new breed of data scientist.
			</blockquote>
			<p style="text-align: right">—Daniel Krizian. [https://vector.org.uk/book-review-fun-q-a-functional-introduction-to-machine-learning-in-q/ Book review—Fun Q: A Functional Introduction to Machine Learning in Q]. Vector, Volume 27, No. 1, Nov. 9, 2020.</p>

	=Tutorials=		=Tutorials=

Admin: /* A+ */

2021-07-02T06:39:38Z

A+

← Older revision		Revision as of 06:39, 2 July 2021
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	: The A+ language implements the following changes to the APL language:		: The A+ language implements the following changes to the APL language:

	** An A+ function may have up to nine formal parameters.		:* An A+ function may have up to nine formal parameters.
	** A+ code statements are separated by semicolons, so a single statement may be divided into two or more physical lines.		:* A+ code statements are separated by semicolons, so a single statement may be divided into two or more physical lines.
	** The explicit result of a function or operator is the result of the last statement executed.		:* The explicit result of a function or operator is the result of the last statement executed.
	** A+ implements an object called a dependency, which is a global variable (the dependent variable) and an associated definition that is like a function with no arguments. Values can be explicitly set and referenced in exactly the same ways as for a global variable, but they can also be set through the associated definition.		:* A+ implements an object called a dependency, which is a global variable (the dependent variable) and an associated definition that is like a function with no arguments. Values can be explicitly set and referenced in exactly the same ways as for a global variable, but they can also be set through the associated definition.

	: Interactive A+ development is primarily done in the Xemacs editor, through extensions to the editor. Because A+ code uses the original APL symbols, displaying A+ requires a font with those special characters; a font named ''kapl'' is provided on the web site for that purpose.		: Interactive A+ development is primarily done in the Xemacs editor, through extensions to the editor. Because A+ code uses the original APL symbols, displaying A+ requires a font with those special characters; a font named ''kapl'' is provided on the web site for that purpose.

Admin at 06:38, 2 July 2021

2021-07-02T06:38:56Z

@@ Line 104: / Line 104: @@
 * The <span class="plainlinks">[https://britishaplassociation.org/ British APL Association&nbsp;(BAA)]</span> was founded in 1984 to promote a family of interactive array-programming languages noted for elegance, conciseness, and fast development speed. Many of them were derived from Kenneth Iverson's mathematical notation.
 * <span class="plainlinks">[https://vector.org.uk/ Vector]</span>&mdash;the journal of the BAA.
 ==J==

Admin at 06:29, 2 July 2021

2021-07-02T06:29:40Z

← Older revision		Revision as of 06:29, 2 July 2021
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	* <span class="plainlinks">[https://www.jsoftware.com/ Jd]</span> (J database) is a high-performance columnar RDBMS written in J that is geared towards storing and analyzing large amounts of data. Jd is free for non-commercial use.		* <span class="plainlinks">[https://www.jsoftware.com/ Jd]</span> (J database) is a high-performance columnar RDBMS written in J that is geared towards storing and analyzing large amounts of data. Jd is free for non-commercial use.

	Jd lives openly and dynamically in the J execution and development environment, so that the full power of J is available to the application developer. For example, Jd columns are mapped to J nouns, so built-in J primitives can apply directly to the data.		: Jd lives openly and dynamically in the J execution and development environment, so that the full power of J is available to the application developer. For example, Jd columns are mapped to J nouns, so built-in J primitives can apply directly to the data.

	It works well with large tables (millions of rows to billions), multiple tables connected by joins, structured data, numerical data, and complex queries and aggregations.		: It works well with large tables (millions of rows to billions), multiple tables connected by joins, structured data, numerical data, and complex queries and aggregations.