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.

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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

Recent News on Predatory Journals

Tags

deceptive publishers, fake news, fake research, miner, Predatory Journals

Here are some recent news on predatory journals, obtained through the news channel of our Predatory Journals miner at

http://www.minerazzi.com/predatory-journals/

How I became easy prey to a predatory publisher – Science Magazine
Thu, 09 May 2019 07:00:00 GMT
How I became easy prey to a predatory publisher  Science MagazinePressure to publish and an unfortunately timely email led this assistant professor astray.

Academics Raise Concerns About Predatory Journals on PubMed – The Scientist
Thu, 09 May 2019 07:00:00 GMT
Academics Raise Concerns About Predatory Journals on PubMed  The ScientistThe National Library of Medicine has quality control procedures in place, but some researchers believe additional scrutiny is necessary.

The crisis of predatory publishers sucking the blood of science – Science Friction – ABC News
Sun, 05 May 2019 07:00:00 GMT
The crisis of predatory publishers sucking the blood of science – Science Friction  ABC NewsScience journalist John Bohannon was shocked by the results of his sting operation to expose predatory publishers. Academic librarian Jeffrey Beall found …

Mechanism to accredit academic journals in the pipeline – University World News
Fri, 17 May 2019 13:21:20 GMT
Mechanism to accredit academic journals in the pipeline  University World NewsKenya’s Commission for University Education (CUE) has proposed the establishment of a mechanism for accrediting academic journals, with a view to …

The problem of predatory journals – AAMCNews
Tue, 09 Apr 2019 07:00:00 GMT
The problem of predatory journals  AAMCNewsRoughly 12 times a day, Kurt Albertine, PhD, deletes emails from suspicious journals inviting him to submit articles. The invitations are from predatory journals: …

Flaws in Academic Publishing Perpetuate a Form of Neo-Colonialism – The Wire
Sat, 11 May 2019 00:44:38 GMT
Flaws in Academic Publishing Perpetuate a Form of Neo-Colonialism  The WireMaking the scientific literature open access from both the production and the consumption perspectives is essential to make knowledge more democratic.

Medical Journals: Is Milton Packer Crying Wolf? – MedPage Today
Mon, 29 Apr 2019 07:00:00 GMT
Medical Journals: Is Milton Packer Crying Wolf?  MedPage TodayAcademic publishing: is it as bad a Milton Packer says? In a recent blog post — Medical Journals: a Sluggish Form of Twitter — Packer exposes the many flaws of …

University of Pisa research reveals the cost of false science – Science Business
Wed, 24 Apr 2019 07:00:00 GMT
University of Pisa research reveals the cost of false science  Science BusinessItalian researchers and professors have spent over 2.5 million dollars to publish articles in predatory journals, that is journals which boast scientific standards …

EDITORIAL: Fake research in the halls of learning blight academia – Business Day
Thu, 09 May 2019 07:00:00 GMT
EDITORIAL: Fake research in the halls of learning blight academia  Business DayA group of unscrupulous academics at local universities have joined the long list of unsavoury people adept at identifying weaknesses in government rules in …

The Price for ‘Predatory’ Publishing? $50 Million – The New York Times
Wed, 03 Apr 2019 07:00:00 GMT
The Price for ‘Predatory’ Publishing? $50 Million  The New York TimesThe Federal Trade Commission accused Omics International, a publisher in India, of operating hundreds of questionable scientific journals. A federal judge …

How to Lie with Bar Graphs: A Tool for Agents of Misinformation and Fake News

Tags

agents of misinformation, fake news, paid polls, politicians, propaganda, seos

In the article, The Use and Abuse of Logarithmic Axes, Harvey J. Motulsky explained how bar graphs can be used for propaganda and misleading others. The article is at

https://s3.amazonaws.com/cdn.graphpad.com/faq/1910/file/1487logaxes.pdf

He shows the following graph and explains, and quote

Since zero can’t be shown on a log axis, the choice of a starting place is arbitrary. Accordingly, the relative height of two bars is not directly related to their relative values. The graphs below show the same data as the graph above, but with three different choices for where the axis begins. This arbitrary choice influences the relative height of the two bars, amplified in the graph on the left and minimized in the graph on the right.

If the goal is to create propaganda, a bar graph using a logarithmic axis is a great tool, as it lets you either exaggerate differences between groups or minimize them. All you have to do is carefully choose the range of your axis. Don’t create bar graphs using a logarithmic axis if your goal is to honestly show the data.

So now you know. Never trust anyone that uses such tricks (politicians, pollsters, marketers, sales department staff, seos, and the likes). This one is also a great tool for fake news masters.

A Unicode Mnemonic for Vowels with Diacritics

Tags

Mnemonic, Unicode, Unicode Mnemonic, Vowels with Diacritics

A mnemonic for easily recalling the unicode entities of vowels with grave accents, acute accents, and circumflexes is available at

http://www.minerazzi.com/tutorials/unicode-mnemonic.pdf

We developed the mnemonic after some work on mining the unicode system. It might come handy for those that need to encode said vowels without looking at reference books, tables,… It is also a great example for those teaching mnemonics.

For those interested, we have a tool for exploring unicode entities at

http://www.minerazzi.com/tools/unicoder/unicoder.php

Update: I found a typo in the “o” lower case circumflex and also an error in the 194 entity. Fixed both. Sorry.

A Brief History of Search Results Ranking, by Stephen Robertson

Tags

information retrieval, PageRank, Ranking Results, search engines, search results, SEO Myths

Back in Feb 5 2019, Prof. Stephen Robertson published “A Brief History of Search Results Ranking” (https://ieeexplore.ieee.org/document/8634887). I finally got a complimentary copy from Robertson via ResearchGate. This is a historical article all IR researchers and search engine marketers (SEOs/SEMs) may want to read. It is part of the IEEE Annals of the History of Computing (https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=85).

His take on PageRank? He writes: “As a secondary aim, I hope to debunk the myth of PageRank, which remains in widespread currency.”

In the paper, Robertson sets the record straight regarding the myth of Google’s PageRank. He wrote:

“So how important was PageRank in the Google ranker? It was one of a large number of features, and contributed something to the overall effectiveness of the ranker. But in my view, it was much less important than doing all the other things well. And in particular, the advantage claimed for PageRank (that it quantifies the authority of a page as viewed by other web page authors) can already be obtained from matching the query against anchor text. Anchor text is a little less subtle than PageRank as a quantitative measure, but on the other hand it is query specific, which PageRank is not. This fact has been recognised in the information retrieval
research community, supported by some evaluation work by Hawking and colleagues, for example — work which was published nine years before McCormick’s book.

Matching anchor text well is vital for a good web search engine; using PageRank is useful, but nothing more.”

Dataset for Sequential Sentence Classification

Tags

Annotation, Classification, information retrieval, ir, Power Transformations

A research group at CSIE department of National Taiwan University (NTU), supervised by Prof. Shou-De Lin, is currently working on releasing a new dataset for sequential sentence classification and type classification for paper abstracts on arXiv.

 

This annotation and classification project is available at https://mslab.csie.ntu.edu.tw/~labeler/abstract.php

 

Annotations are made by article authors and upon being invited/contacted by the research group. I’m happy to see they included in the dataset my “Local Term Weights Models from Power Transformations | Development of BM25IR” paper (https://arxiv.org/ftp/arxiv/papers/1608/1608.01573.pdf).

PHP Implementation of Text Mining in Digital Libraries using OKAPI BM25 Model

Tags

Apache, BM25, BM25 Tutorial, BM25F, BM25F Tutorial, minerazzi, open source, PHP

Here is a nice article from International Journal of Computer Applications Technology and Research, https://ijcat.com/archieve/volume7/issue10/ijcatr07101003.pdf, on text mining digital libraries with OKAPI BM25. The authors successfully used a PHP implementation (XAMPP bundle).

Happy to see in reference 22 of the article that they cited one of my tutorials, on the BM25F implementation. This one is available at http://www.minerazzi.com/tutorials/bm25f-model-tutorial.pdf (and through researchgate.net).

The authors generously included some PHP snippets so it should be easy for those that can code to follow up.

 

LANL Miner

Tags

LANL, Los Alamos National Laboratory, miner, minerazzi

 

LANL Miner (http://www.minerazzi.com/lanl). Our newest miner/engine.

Public resources, news, research, people, and more from Los Alamos National Laboratory.

Use its news channel to access feeds relevant to Los Alamos National Laboratory.

Recrawl search results and build your own curated collection of resources.

Want to know about the Manhattan Project? How about research from outerspace?

Some goldmine resources found with the LANL Miner:

Los Alamos Research Online (beta)
https://research-online.lanl.gov/oppie/service

Cambridge Structural Database
https://www.lanl.gov/library/find/articles/csd.php

LANL-PRIMO
http://lanl-primo.hosted.exlibrisgroup.com/primo_library/libweb/action/search.do?vid=LANL

Multiple databases
https://www.lanl.gov/library/find/articles/

And a lot more…