A Simple Example of Phonetic Similarity vs. Text Similarity

Tags

levenshtein distance, levenshtein similarity, minerazzi tools, phonetic similarity, tools

The followings sound the same so their phonetic similarity is 1.

(a) r u?
(b) ar u?
(c) are u?
(d) r you?
(e) ar you?
(f) are you?

However, the Levenshtein Distance (LD) and Levenshtein Similarity (LS) of (a) with the other strings differ:

LD(a, b) = 1; LS(a, b) = 0.5
LD(a, c) = 2; LS(a, c) = 0.33
LD(a, d) = 2; LS(a, d) = 0.33
LD(a, e) = 3; LS((a, e) = 0.25
LD(a, f) = 4; LS(a, f) = 0.2

Can you find LD and LS results for other possible combinations?

For i = j, LD(i, j) = 0 and LS(i, j) = 1 so you may want to ignore this case.

Note: LD and LS results were computed with our tool at http://www.minerazzi.com/tools/levenshtein/levenshtein-distance-calculator.php

References
http://www.minerazzi.com/tutorials/levenshtein-distance-tutorial.pdf
http://www.minerazzi.com/tutorials/distance-similarity-tutorial.pdf

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A Simple News Hub

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news feeds, News Hub, puerto rico, rss news

Unleashing a comprehensive news hub for beautiful Puerto Rico by providing free traffic to nearly 200 newsfeed sources, and counting.

http://www.miislita.com/web/spp.php

Zillman’s 2019 Directory of Directories

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directories, Directory of Directories, miner, minerazzi

Zillman’s 2019 Directory of Directories is a handy resource for those interested in finding specialized gateways to the Web.

Glad to know that this summer Minerazzi was included in the Academic/Education section.

(http://columns.virtualprivatelibrary.net/2019_Directory_Of_Directories_June19_column.pdf)

See also http://www.2019directoryofdirectories.com/

Since 2018 we are listed in the Bot and Intelligent Agent Resources category and few other sections, but did not realize that in that one too.

(http://www.zillman.us/minerazzi-your-search-and-mine)

Cool!

More on Perfectoid Spaces

Tags

espacios perfectoides, fractals, Mathematics, perfectoid miner, Perfectoid Spaces

Back in 08-12-2018, we blogged on Peter Scholze’s 2011 thesis on Perfectoid Spaces, one of the hottest topics that is taking Mathematics by storm (https://irthoughts.wordpress.com/2018/08/12/peter-scholze-and-perfectoid-spaces-a-math-genius-among-us/).

An introductory discussion on the topic is available at https://mathoverflow.net/questions/65729/what-are-perfectoid-spaces?rq=1

Possible connections and applications are mentioned at https://irthoughts.wordpress.com/2018/08/23/perfectoid-spaces-arithmetic-geometry-and-quantum-theory/.

The Perfectoid Spaces miner is available since 08-16-2018 (https://irthoughts.wordpress.com/2018/08/16/perfectoid-spaces-miner/).

Resources in spanish were added to the miner yesterday 08-26-2019, about a year later. Better late than never.

Lymphomas Miner

Tags

Cancer, Lymphoma, miner, minerazzi

According to the Johns Hopkins Lupus Center (https://www.hopkinslupus.org/lupus-info/lifestyle-additional-information/lupus-cancer), lupus patients may experience an elevated risk of lymphoma (Hodgkin and non-Hodgkin) and other types of cancers, such as cancer of the cervix, breast cancer, lung cancer, and endometrical cancer.

We have developed the Lymphomas Miner (http://www.minerazzi.com/lymphomas), a topic-focused search engine, which can be used to find resources relevant to this type of cancer. Its news channel provides access to many news sources on different types of cancers.

You may also recrawl individual search results and build your own curated collection. To do this, just do a search and then click the “links” icon below a given result. You should see a list of internal and external links from that result pointing to new resources, which can then be recursively crawled. A great discovery research tool.

In the pipeline are new miners focused on other types of cancers. A list of topic-specific miners are available from http://www.minerazzi.com/

Extracting Topic-Specific Wikipedia Links

Tags

miner, minerazzi, wiki links, wikipedia

Below is an illustrative example of a miner for extracting specific links from Wikipedia.

http://www.miislita.com/wikilinks

This miner provides entry points to Wikipedia links relevant to Puerto Rico.

Recrawling a search result discovers new topic-specific links, allowing for further exploration and mining.

Programming Languages Miner

Tags

Python, Programming, PHP, JavaScript, programming languages, computer programming, C++, PERL

Programming Languages Miner (http://www.minerazzi.com/programming-languages/)

Find lists of programming languages, tutorials, and related resources.

Recrawl results to build your own curated collection.

Its news channels include direct access to blog feeds of some of the most popular languages, like C++, JavaScript, PERL, PHP, and PYTHON.

Beware of Chemistry Heuristics

Tags

chemistry, chemistry heuristics

I have added new content to the bond order calculator mentioned at https://irthoughts.wordpress.com/2018/12/20/bond-order-calculator-tool/

The content added is to illustrate the risks of blindly relying on chemistry heuristics and old-school chemistry ideas. Essentially, it is debunked some few old-school chemistry ideas, like

1. SO3 has a bond order of 2. Really?
2. nitrogen cannot form five bonds. Really?
3. octet rule expansion by means of using d orbitals. Really?
4. bond order is the number of chemical bonds shared by two atoms. Really?

To access this content, visit http://www.minerazzi.com/tools/bond-order/calculator.php

Once there, navigate to the ‘What is computed?’ section, and then to the subsection ‘Beware of Blindly Relying on Chemistry Heuristics’.

Enjoy it.

New IANA Miners

Tags

iana, Internet Standards, minerazzi, miners

Here is a series of IANA miners, available now at Minerazzi.com.

IANA Drafts: http://www.minerazzi.com/iana-drafts/

IANA Domains: http://www.minerazzi.com/iana-domains/

IANA Assignments: http://www.minerazzi.com/iana-assignments/

IANA Reports: http://www.minerazzi.com/iana-reports/

Resources relevant to IANA members can also be found through these.

For instance, search for [email]. In the search results page, click the emails tool icon at the top of the results…

IANA Reports Miner

Tags

iana, Internet Standards, miner, minerazzi

Find IANA reports, statistics, resources, and more with this new miner, available now at http://www.minerazzi.com/iana-reports/

Use its news channels to conveniently find in one place the latest news from IANA’s regional internet registries:

The African Network Information Center (AFRINIC) serves Africa

The American Registry for Internet Numbers (ARIN) serves Antarctica, Canada, parts of the Caribbean, and the United States

The Asia-Pacific Network Information Centre (APNIC) serves East Asia, Oceania, South Asia, and Southeast Asia

The Latin America and Caribbean Network Information Centre (LACNIC) serves most of the Caribbean and all of Latin America

The Réseaux IP Européens Network Coordination Centre (RIPE NCC) serves Europe, Central Asia, Russia, and West Asia