#nir — Public Fediverse posts

RE: https://aus.social/@danielpelliccia/116843445917856343

Still time to register for the next Nirpy Webinar presented by Dr Mercedes Bertotto.

"Bridging Model Validation and Analytical Validation in Spectroscopy: The Role of the Accuracy Profile"

When: Tomorrow, July 15th, 2026, 16:00 CET

#Spectroscopy #Machine_learning #MachineLearning #NIR #NearInfrared

RE: https://aus.social/@danielpelliccia/116843445917856343

Still time to register for the next Nirpy Webinar presented by Dr Mercedes Bertotto.

"Bridging Model Validation and Analytical Validation in Spectroscopy: The Role of the Accuracy Profile"

When: Tomorrow, July 15th, 2026, 16:00 CET

#Spectroscopy #Machine_learning #MachineLearning #NIR #NearInfrared

OK, here's a sample selection method that doubles as training/test splitting method.

If you've ever trained a machine learning model from physical data, you know that acquiring calibration samples may be costly and laborious.

If you have a cheaper proxy, for instance optical or near-infrared #spectroscopy as a not-so-random example, you can use that proxy to pre-select the samples to be used for calibration.

And if you already have all of your samples, you can still use this method to select the training set.

The algorithm was proposed by G Puchwein many years ago. For some reason, I couldn't find a #Python implementation of it, so here it is 👇

https://nirpyresearch.com/sample-selection-puchwein-algorithm/
#MachineLearning #NIR #DataScience

OK, here's a sample selection method that doubles as training/test splitting method.

If you've ever trained a machine learning model from physical data, you know that acquiring calibration samples may be costly and laborious.

If you have a cheaper proxy, for instance optical or near-infrared #spectroscopy as a not-so-random example, you can use that proxy to pre-select the samples to be used for calibration.

And if you already have all of your samples, you can still use this method to select the training set.

The algorithm was proposed by G Puchwein many years ago. For some reason, I couldn't find a #Python implementation of it, so here it is 👇

https://nirpyresearch.com/sample-selection-puchwein-algorithm/
#MachineLearning #NIR #DataScience

Fra vs NI: Fra is the clear favorite; NI hope for a surprise in a lively clash. Kickoff 21:10 (UTC+2).

Frankreich 83.2%
Draw 12.6%
Nordirland 4.2%

#Football #Soccer #FRA #NIR #FRANIR

Fra vs NI: Fra is the clear favorite; NI hope for a surprise in a lively clash. Kickoff 21:10 (UTC+2).

Frankreich 83.2%
Draw 12.6%
Nordirland 4.2%

#Football #Soccer #FRA #NIR #FRANIR

I'm presenting a webinar on
"Class modelling and outlier detection in NIR spectroscopy"

We have two sessions scheduled
🔸 Session 1 (best for the Americas): Jun 16th, 06:00 - 07:00 (UTC+10)
🔸 Session 2 (best for EMEA - APAC): Jun 16th, 18:00 - 19:00 (UTC+10)

Registration is free, but spots are limited.

Details and abstract are on the registration page 👇
https://www.trybooking.com/DMSTO

#NIR #spectroscopy #NearInfrared #Chemometrics #Python #MachineLearning

I'm presenting a webinar on
"Class modelling and outlier detection in NIR spectroscopy"

We have two sessions scheduled
🔸 Session 1 (best for the Americas): Jun 16th, 06:00 - 07:00 (UTC+10)
🔸 Session 2 (best for EMEA - APAC): Jun 16th, 18:00 - 19:00 (UTC+10)

Registration is free, but spots are limited.

Details and abstract are on the registration page 👇
https://www.trybooking.com/DMSTO

#NIR #spectroscopy #NearInfrared #Chemometrics #Python #MachineLearning

This walkthrough demystifies Mesa NIR’s memory optimization pipeline, including SSA promotion, deref analysis, copy propagation, and store elimination, and shows how it reduces memory traffic to boost GPU performance.

https://www.collabora.com/news-and-blog/blog/2026/05/07/optimizing-memory-access-in-nir/

#Mesa #NIR #ShaderCompiler #GPUDrivers #GraphicsDev #ShaderOptimization #Vulkan #OpenSource

This walkthrough demystifies Mesa NIR’s memory optimization pipeline, including SSA promotion, deref analysis, copy propagation, and store elimination, and shows how it reduces memory traffic to boost GPU performance.

https://www.collabora.com/news-and-blog/blog/2026/05/07/optimizing-memory-access-in-nir/

#Mesa #NIR #ShaderCompiler #GPUDrivers #GraphicsDev #ShaderOptimization #Vulkan #OpenSource

If your #spectroscopy dataset is small, deterministic data subdivision into training and test sets may be the way to go 🔬

The SPXY algorithm is an extension of the Kennard-Stone method that selects training samples to maximize coverage of both spectra (X) and response variable (Y) at the same time.

Here's a primer, with a #Python implementation for #NIR spectroscopy.

https://nirpyresearch.com/spxy-algorithm/

#Chemometrics #MachineLearning

If your #spectroscopy dataset is small, deterministic data subdivision into training and test sets may be the way to go 🔬

The SPXY algorithm is an extension of the Kennard-Stone method that selects training samples to maximize coverage of both spectra (X) and response variable (Y) at the same time.

Here's a primer, with a #Python implementation for #NIR spectroscopy.

https://nirpyresearch.com/spxy-algorithm/

#Chemometrics #MachineLearning

(archive: 2015) Report on the Committee’s Inquiry into Wind Energy #NIR: This report sets out the key conclusions and recommendations of the Committee for the Environment on its inquiry into wind energy, and the evidence considered by the Committee which led to those conclusions. The terms of reference for the inquiry were: To assess the adequacy of PPS18 and related supplementary guidance in regulating proposals for wind turbines on a consistent… https://www.wind-watch.org/documents/report-on-the-committees-inquiry-into-wind-energy/ #windpower #windenergy

ITA vs NIR, WCQ Playoff. ITA hold a clear edge, but NIR chase an upset. Kickoff 20:45 +01:00

Italien 68.4%
Draw 21.2%
Nordirland 10.4%

#Football #Soccer #WMQualifikationPlayoff #ITA #NIR #ITANIR

ITA vs NIR, WCQ Playoff. ITA hold a clear edge, but NIR chase an upset. Kickoff 20:45 +01:00

Italien 68.4%
Draw 21.2%
Nordirland 10.4%

#Football #Soccer #WMQualifikationPlayoff #ITA #NIR #ITANIR

Кое-что новое про цианобактерии (цианобактерии и ближний инфракрасный свет; заголовок неоправдано нью-васюковский): https://www.bbc.com/russian/articles/cz7gre32731o #cyanobacteria #speleology #NIR #scipop

#UDE:
"
Forschende messen erstmals Ionisation in Dunkelwolke
"
".. Forschungsteam hat erstmals die Wirkung kosmischer Strahlung in einer kalten Molekülwolke direkt gemessen. Die Beobachtung zeigt, wie stark energiereiche Teilchen das Gas in diesen lichtlosen Regionen beeinflussen, in denen Sterne entstehen."

https://www.uni-due.de/2026-02-03-ionisation-in-dunkelwolke-gemessen

3.2.2026

#Astronomie #Astrophysik #Barnard68 #Chemie #Dunkelwolke #JWST #Gas #Ionisationsrate #IR #NIR #Strahlung #Strahlungschemie #Wasserstoff #Weltraumteleskop

#UDE:
"
Forschende messen erstmals Ionisation in Dunkelwolke
"
".. Forschungsteam hat erstmals die Wirkung kosmischer Strahlung in einer kalten Molekülwolke direkt gemessen. Die Beobachtung zeigt, wie stark energiereiche Teilchen das Gas in diesen lichtlosen Regionen beeinflussen, in denen Sterne entstehen."

https://www.uni-due.de/2026-02-03-ionisation-in-dunkelwolke-gemessen

3.2.2026

#Astronomie #Astrophysik #Barnard68 #Chemie #Dunkelwolke #JWST #Gas #Ionisationsrate #IR #NIR #Strahlung #Strahlungschemie #Wasserstoff #Weltraumteleskop

It took a while, but I'm finally back to writing my blog 😎

The first installment for 2026 is an easy introduction to calculating information #entropy for optical spectra (or for any signal, really).

In my blog, I focus on #data analysis (#chemometrics, machine learning) applied to optical and near-infrared #spectroscopy Smoothing, or denoising, is one of the most common steps to work with spectroscopy data, and information entropy can be used as a criterion to guide the smoothing process.

Better still, the entropy of the derivative of a signal can help with that, because it accounts for the shape of the signal more naturally.

Read more at https://nirpyresearch.com/information-entropy-spectra/

#MachineLearning #NIR #Physics

It took a while, but I'm finally back to writing my blog 😎

The first installment for 2026 is an easy introduction to calculating information #entropy for optical spectra (or for any signal, really).

In my blog, I focus on #data analysis (#chemometrics, machine learning) applied to optical and near-infrared #spectroscopy Smoothing, or denoising, is one of the most common steps to work with spectroscopy data, and information entropy can be used as a criterion to guide the smoothing process.

Better still, the entropy of the derivative of a signal can help with that, because it accounts for the shape of the signal more naturally.

Read more at https://nirpyresearch.com/information-entropy-spectra/

#MachineLearning #NIR #Physics

Drumquin residents voice strong opposition to proposed wind farm developments #NIR: Residents of Drumquin have raised growing concerns over plans for a series of new wind farm developments which they say could dramatically alter the character, landscape and quality of life in the village and surrounding hills. The concerns were highlighted on December 30, when around 60 people took part in a community walk around the Dooish and Dunnaree hills. The… https://www.wind-watch.org/news/2026/01/11/drumquin-residents-voice-strong-opposition-to-proposed-wind-farm-developments/ #windpower #windenergy

(archive: 2017) Wind farms and groundwater impacts: A practice guide to EIA and Planning considerations #NIR: What impact can a wind farm have on groundwater? The development of a wind farm has the potential to impact on groundwater quality, groundwater quantity and/or the established groundwater flow regime. Figure 1 shows the scale and extent of the foundation of a single wind turbine which could potentially impact on the aquatic environment.… https://www.wind-watch.org/documents/wind-farms-and-groundwater-impacts-a-practice-guide-to-eia-and-planning-considerations/ #windpower #windenergy

Near Infrared Light Reduces Inflammation via TLR4 In Vitro [2022]
https://youtu.be/e6xj14QYsoc

video discusses this article:
Infrared light therapy relieves TLR-4 dependent hyper-inflammation of the type induced by COVID-19
https://pmc.ncbi.nlm.nih.gov/articles/PMC8451450/

"The inflammatory response was induced in cell cultures by LPS, followed by exposure to 720 nm LED light source at an intensity of 6 W/m2 for 10 min at 12-h intervals (see methods). ... At the end of the 48-h treatment period, cells were harvested and gene expression analysis performed. The results showed an approximately 50% reduction in gene expression of all of these markers in response to LED infrared exposure (Figure 4). ..."

#TLR4 #photobiomodulation #NIR #inflammation

WM-Quali EU: NIR vs GER. Germany the favorite, NIR keen to surprise - expect a lively, tight clash. Kickoff 20:45 CEST (UTC+02:00).

Nordirland 15.7%
Draw 25.6%
Deutschland 58.8%

#Football #Soccer #WMQualifikationEuropa #NIR #GER #NIRGER

❌ 🇮🇪 Shelbourne missed a chance to secure the group/league stage spot of European competitions for the FIRST TIME EVER!

✅ 🇮🇪 Shelbourne will have another chance to do that via the Conference League Play-offs:

🇮🇪 Shelbourne
vs
🇫🇴 Víkingur / #NIR Linfield

🚨 Country Ranking Update.

🇦🇹 Austria added their first points!

🇪🇪 Estonia overtook 🇱🇮 Liechtenstein!

🇲🇪 Montenegro overtook 🇦🇱 Albania!

🇱🇺 Luxembourg added their first points and overtook #NIR Northern Ireland and 🇧🇾 Belarus!
[Credits to : Football Rankings ]

❌ Le Gouvernement ne respecte pas la loi qui l'oblige à évaluer sa politique à l'aune des nouveaux indicateurs de richesse #NIR

Pourtant, l’impact des politiques menées sur notre santé, le niveau d’éducation ou l'environnement devrait être connu des parlementaires !

✍️ Notre courrier au Premier ministre

🟢 Il y a 10 ans jour pour jour, je faisais adopter la loi sur les Nouveaux Indicateurs de Richesse #NIR

❌ Mais depuis 2018, le Gouvernement ne la respecte plus !

Nous devons connaitre l’impact des politiques menées sur notre santé, le niveau d’éducation ou l'environnement.

📣 Notre interpellation

Machine Learning Approaches for the Fusion of Near-Infrared, Mid-Infrared, and Raman Data to Identify Cartilage Degradation in Human Osteochondral Plugs.

Applied Spectroscopy. 2024;79(3):385-395
https://doi.org/10.1177/00037028241285583
#infrared #nir #ramaneffect #machinelearning #bone

🚨 Pots are set for League B of the 2026/27 Nations League:

1⃣ 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇭🇺 🇵🇱 🇮🇱
2⃣ 🇨🇭 🇧🇦 🇦🇹 🇺🇦
3⃣ 🇸🇮 🇬🇪 🇮🇪 🇷🇴
4⃣ 🇸🇪 🇲🇰 #NIR 🇽🇰

🗓️ Draw date is yet to be confirmed.

where I discuss a neat way to include preprocessing techniques such as multiplicative scatter correction (MSC) in a #scikit_learn pipeline.

MSC is one example of preprocessing techniques that are specific to #spectroscopy (esp. #optical and #nir )

#Python #MachineLearning #DataScience

https://nirpyresearch.com/include-msc-custom-pipeline-scikit-learn/

🌍 Prof. Dr. Michael Rauch presented at the 2nd International Conference on Textile Science and Engineering (#ICTSE) in Dhaka. He discussed #Sustainability is the future of #TextileBusiness and innovative #NIR technology in textile dyeing. ♻️👕 https://shorturl.at/VTJ6n
https://shorturl.at/VTJ6n

#Belfast to #Dublin (partially bustituted because of trackworks at the northern end of the line) with an #NIR #Translink Class 3000 unit. No @diningcar on this trainset, yet, before arriving at Dublin, a trolley service is available, selling some Irish stuff (and soft drinks).

#Larne to #Belfast by #Translink #NIR Northern Ireland Railways Class 3000 diesel unit. Wonderful views as we pass right by the sea.

#OpenSource mod of a desktop #FFF printer via 980 nm #NIR #laser addition for upconversion #3Dprinting:

-penetration depths up to 5.8 cm
-printing inside/through existing #3Dprinted parts
-in situ #bioprinting

https://doi.org/10.1016/j.ohx.2024.e00520
#stereolithography #DIYbio #lab #instruments

We like to show that kites are great for science. This time we flew an infrared camera above Planina karst field, Slovenia, in pursuit of some Roman army camps:

https://kapjasa.si/en/pareidolia-on-the-meadows-part-i/

#kiteaerialphotography #kite #archaeology #aerial #science #history #Planina #Slovenia #Romans #infrared #NIR #KAP

@Doctor_J_ @hlepidus can we have raffle for yours or Steven's please?

#NIR

‘Belfast-Dublin rail link set to be transformed within months — with far grander plans ahead’. Is the Enterprise upgrade finally going to to happen? https://m.belfasttelegraph.co.uk/opinion/columnists/sam-mcbride/belfast-dublin-rail-link-set-to-be-transformed-within-months-with-far-grander-plans-ahead/a1102646240.html #Enterprise #NIR #IrishRail