Aim/Purpose: The clustering techniques are normally considered to determine the significant and meaningful subclasses purposed in datasets. It is an unsupervised type of Machine Learning (ML) where the objective is to form groups from objects based on their similarity and used to determine the implicit relationships between the different features of the data. Cluster Analysis is considered a significant problem area in data exploration when dealing with arbitrary shape problems in different datasets. Clustering on large data sets has the following challenges: (1) clusters with arbitrary shapes; (2) less knowledge discovery process to decide the possible input features; (3) scalability for large data sizes. Density-based clustering has been known as a dominant method for determining the arbitrary-shape clusters. Background: Existing density-based clustering methods commonly cited in the literature have been examined in terms of their behavior with data sets that contain nested clusters of varying density. The existing methods are not enough or ideal for such data sets, because they typically partition the data into clusters that cannot be nested. Methodology: A density-based approach on traditional center-based clustering is introduced that assigns a weight to each cluster. The weights are then utilized in calculating the distances from data vectors to centroids by multiplying the distance by the centroid weight. Contribution: In this paper, we have examined different density-based clustering methods for data sets with nested clusters of varying density. Two such data sets were used to evaluate some of the commonly cited algorithms found in the literature. Nested clusters were found to be challenging for the existing algorithms. In utmost cases, the targeted algorithms either did not detect the largest clusters or simply divided large clusters into non-overlapping regions. But, it may be possible to detect all clusters by doing multiple runs of the algorithm with different inputs and then combining the results. This work considered three challenges of clustering methods. Findings: As a result, a center with a low weight will attract objects from further away than a centroid with higher weight. This allows dense clusters inside larger clusters to be recognized. The methods are tested experimentally using the K-means, DBSCAN, TURN*, and IDCUP algorithms. The experimental results with different data sets showed that IDCUP is more robust and produces better clusters than DBSCAN, TURN*, and K-means. Finally, we compare K-means, DBSCAN, TURN*, and to deal with arbitrary shapes problems at different datasets. IDCUP shows better scalability compared to TURN*. Future Research: As future recommendations of this research, we are concerned with the exploration of further available challenges of the knowledge discovery process in clustering along with complex data sets with more time. A hybrid approach based on density-based and model-based clustering algorithms needs to compare to achieve maximum performance accuracy and avoid the arbitrary shapes related problems including optimization. It is anticipated that the comparable kind of the future suggested process will attain improved performance with analogous precision in identification of clustering shapes.

This paper proposes an efficient solution for personalised web directories recommendation using fast FCM+DQN. At first, web directory usage file obtained from given dataset is fed into the accretion matrix computation module, where visitor chain matrix, visitor chain binary matrix, directory chain matrix and directory chain binary matrix are formulated. In this, directory grouping is accomplished based on fast FCM and matching among query and group is conducted based on Kumar Hassebrook and Kulczynski similarity. The user preferred directory is restored at this stage and at last, personalised web directories are recommended to the visitors by means of DQN. The proposed approach has received superior results with respect to maximum accuracy of 0.910, minimum mean squared error (MSE) of 0.0206 and root mean squared error (RMSE) of 0.144. Although the system offered magnificent outcomes, it failed to order web directories in the form of highly, medium and low interested directories.

After a successful networking session in Bangkok, Thailand the SUSTAIN EU-ASEAN project is organising another networking session for interested institutions and research projects in Brussels, Belgium. The event will take place on 28 March 2014 in Brussels, Belgium.This meeting is helpful if you

• want to get to know and network with fellow environment research projects (in the areas of climate change, resource efficiency and raw materials) with an ASEAN focus and/or relevant research results for the region
• want to identify and harness synergies with other projects (possible future cooperation; sharing of results and work, etc.)
• want to get in touch with the SUSTAIN team, communicating what kind of support your research efforts would benefit from

The SUSTAIN EU-ASEAN project generally has to offer

• networking and project twinning support: find and coordinate with similar projects!
• R&D services for results take-up: get support in approaching potential investors!
• communication and exposure support: make your results visible for potential users!

Get in touch here, if you are interested in joining the meeting. The pre-meeting agenda is available as an attachment below,

Read more about the event on the SUSTAIN EU-ASEAN website.

• Meet and get to know fellow projects working on similar topics of relevance to ASEAN
• Discuss results and synergies, exchange on methodologies, plan for joint events, applications, publications, etc. or simply see what's going on in the other region in this topic.
• Plan concrete next joint steps with projects in the cluster.
• Benefit from SUSTAIN EU-ASEAN support (e.g. in your dissemination, exploitation and development activities) and inputs (on the funding environment)
• Share your views on thematic gaps in current research - SUSTAIN is mandated to carry the message to the European Commission

The 5th edition of the DEST course "Basics of Taxonomy" is co-organised with the Scandinavian Research School in Biosystematics (ForBio). The course will take place from 10 to 21 October 2016 at the Sven Lovén Centre for Marine Sciences, Kristineberg.

Course topics covered: DELTA, digital drawing, scientific illustration, scientific writing and communication, Scratchpads.

For more infromation and to register, please go to: http://taxonomytraining.eu/content/basics-taxonomy-describing-illustrating-and-communicating-biodiversity-0

Washington – A deadly metal dust explosion in China offers a fresh reminder of combustible dust hazards, which the United States should address through an OSHA standard, Chemical Safety Board Chairman Rafael Moure-Eraso said in a statement released Aug. 5.

Washington — Photos, graphics and statistics are included in an illustrated digest recently released by the National Transportation Safety Board detailing the 2023 train derailment in East Palestine, OH.

Bakery On Main is expanding its diverse portfolio of gluten-free cereals and snacks with the addition of a certified Paleo and Keto Grain-Free Cluster Trail Trek Blend snack line.

The professional-grade supplements are for active individuals who are seeking a healthy lifestyle. In addition to the vegan omega-3 Ahiflower oil, the product line features performance products, pre- and post-workout support, a whey protein isolate, collagen + enzymes, and other formulas that focus on other areas of wellness such as brain and joint health.

The fixed effects model is a useful alternative to the mixed effects model for analyzing stepped-wedge cluster randomized trials (SW-CRTs). It controls for all time-invariant cluster-level confounders and has … Read the full article ›

The post Inclusion of unexposed clusters improves the precision of fixed effects analysis of stepped-wedge cluster randomized trials with binary and count outcomes was curated by information for practice.

202 E 6th Street
Ongoing through Saturday, December 28, 2024

Senior cords, decorated corduroy pants and skirts popular with high school and college seniors, are a unique piece of Hoosier heritage. This exciting exhibit guest-curated by Kelly Richardson (Director of IU Sage Collection) follows their history from their Purdue University origins through their high school heyday in the 50s and 60s and up to their contemporary revival in bespoke fashion brands like BODE.
Exhibit is currently open and closes Dec. 28th

On view at the Monroe County History Center
202 E. 6th St
Bloomington, IN 47408
Visit monroehistory.org for hours, pricing, and parking information.

Presenter: www.monroehistory.org
Contact: Sarah Rosenkrans
Age Range: All Ages
Cost: $2 adults, $1 kids, free for members and ages under 5
Communities: Bloomington
More info: www.monroehistory.org

Obituary recounts life and career of alumnus and preeminent novelist Philip Roth

Three-dimensional electron diffraction (3D-ED) is a powerful technique for crystallographic characterization of nanometre-sized crystals that are too small for X-ray diffraction. For accurate crystal structure refinement, however, it is important that the Bragg diffracted intensities are treated dynamically. Bloch wave simulations are often used in 3D-ED, but can be computationally expensive for large unit cell crystals due to the large number of diffracted beams. Proposed here is an alternative method, the `scattering cluster algorithm' (SCA), that replaces the eigen-decomposition operation in Bloch waves with a simpler matrix multiplication. The underlying principle of SCA is that the intensity of a given Bragg reflection is largely determined by intensity transfer (i.e. `scattering') from a cluster of neighbouring diffracted beams. However, the penalty for using matrix multiplication is that the sample must be divided into a series of thin slices and the diffracted beams calculated iteratively, similar to the multislice approach. Therefore, SCA is more suitable for thin specimens. The accuracy and speed of SCA are demonstrated on tri-iso­propyl silane (TIPS) pentacene and rubrene, two exemplar organic materials with large unit cells.

A novel automated high-throughput screening approach, ClusterFinder, is reported for finding candidate structures for atomic pair distribution function (PDF) structural refinements. Finding starting models for PDF refinements is notoriously difficult when the PDF originates from nanoclusters or small nanoparticles. The reported ClusterFinder algorithm can screen 104 to 105 candidate structures from structural databases such as the Inorganic Crystal Structure Database (ICSD) in minutes, using the crystal structures as templates in which it looks for atomic clusters that result in a PDF similar to the target measured PDF. The algorithm returns a rank-ordered list of clusters for further assessment by the user. The algorithm has performed well for simulated and measured PDFs of metal–oxido clusters such as Keggin clusters. This is therefore a powerful approach to finding structural cluster candidates in a modelling campaign for PDFs of nanoparticles and nanoclusters.

A 6D structure model for face-centred icosahedral quasicrystals consisting of so-called pseudo-Mackay and mini-Bergman-type atomic clusters is proposed based on the structure model of the Al69.1Pd22Cr2.1Fe6.8 3/2 cubic approximant crystal (with space group Pa3, a = 40.5 Å) [Fujita et al. (2013). Acta Cryst. A69, 322–340]. The cluster centres form an icosahedral close sphere packing generated by the occupation domains similar to those in the model proposed by Katz & Gratias [J. Non-Cryst. Solids (1993), 153–154, 187–195], but their size is smaller by a factor τ2 [τ = (1 + (5)1/2)/2]. The clusters cover approximately 99.46% of the atomic structure, and the cluster arrangement exhibits 15 and 19 different local configurations, respectively, for the pseudo-Mackay and mini-Bergman-type clusters. The occupation domains that generate cluster shells are modelled and discussed in terms of structural disorder and local reorganization of the cluster arrangements (phason flip).

During the automatic processing of crystallographic diffraction experiments, beamstop shadows are often unaccounted for or only partially masked. As a result of this, outlier reflection intensities are integrated, which is a known issue. Traditional statistical diagnostics have only limited effectiveness in identifying these outliers, here termed Not-Excluded-unMasked-Outliers (NEMOs). The diagnostic tool AUSPEX allows visual inspection of NEMOs, where they form a typical pattern: clusters at the low-resolution end of the AUSPEX plots of intensities or amplitudes versus resolution. To automate NEMO detection, a new algorithm was developed by combining data statistics with a density-based clustering method. This approach demonstrates a promising performance in detecting NEMOs in merged data sets without disrupting existing data-reduction pipelines. Re-refinement results indicate that excluding the identified NEMOs can effectively enhance the quality of subsequent structure-determination steps. This method offers a prospective automated means to assess the efficacy of a beamstop mask, as well as highlighting the potential of modern pattern-recognition techniques for automating outlier exclusion during data processing, facilitating future adaptation to evolving experimental strategies.

The mol­ecular and crystal structure of a discrete [Ni8(μ4-OH)6(μ-4-Rpz)12]2− (R = H; pz = pyrazolate anion, C3H3N2−) cluster with an unprecedented, perfectly cubic arrangement of its eight Ni centers is reported, along with its lower-symmetry alkyl-functionalized (R = methyl and n-oct­yl) derivatives. Crystals of the latter two were obtained with two identical counter-ions (Bu4N+), whereas the crystal of the complex with the parent pyrazole ligand has one Me4N+ and one Bu4N+ counter-ion. The methyl derivative incorporates 1,2-di­chloro­ethane solvent mol­ecules in its crystal structure, whereas the other two are solvent-free. The compounds are tetra­butyl­aza­nium tetra­methyl­aza­nium hexa-μ4-hydroxido-dodeca-μ2-pyrazolato-hexa­hedro-octa­nickel, (C16H36N)(C4H12N)[Ni8(C3H3N2)12(OH)6] or (Bu4N)(Me4N)[Ni8(μ4-OH)6(μ-pz)12] (1), bis­(tetra­butyl­aza­nium) hexa-μ4-hydroxido-dodeca-μ2-(4-methyl­pyrazolato)-hexa­hedro-octa­nickel 1,2-di­chloro­ethane 7.196-solvate, (C16H36N)2[Ni8(C4H5N2)12(OH)6]·7.196C2H4Cl2 or (Bu4N)2[Ni8(μ4-OH)6(μ-4-Mepz)12]·7.196(ClCH2CH2Cl) (2), and bis­(tetra­butyl­aza­nium) hexa-μ4-hydroxido-dodeca-μ2-(4-octylpyrazolato)-hexa­hedro-octa­nickel, (C16H36N)2[Ni8(C11H19N2)12(OH)6] or (Bu4N)2[Ni8(μ4-OH)6(μ-4-nOctpz)12] (3). All counter-ions are disordered (with the exception of one Bu4N+ in 3). Some of the octyl chains of 3 (the crystal is twinned by non-merohedry) are also disordered. Various structural features are discussed and contrasted with those of other known [Ni8(μ4-OH)6(μ-4-Rpz)12]2− complexes, including extended three-dimensional metal–organic frameworks. In all three structures, the Ni8 units are lined up in columns.

The title compound, tetra­ethyl­ammonium tri­azido­tri-μ3-sulfido-[μ3-(tri­methyl­sil­yl)aza­nediido][tris­(3,5-di­methyl­pyrazol-1-yl)hydro­borato]triiron(+2.33)molybdenum(IV), (C8H20N)[Fe3MoS3(C15H22BN6)(C3H9NSi)(N3)3] or (Et4N)[(Tp*)MoFe3S3(μ3-NSiMe3)(N3)3] [Tp* = tris­(3,5-di­methyl­pyrazol-1-yl)hydro­bor­ate(1−)], crystallizes as needle-like black crystals in space group Poverline{1}. In this cluster, the Mo site is in a distorted octa­hedral coordination model, coordinating three N atoms on the Tp* ligand and three μ3-bridging S atoms in the core. The Fe sites are in a distorted tetra­hedral coordination model, coordinating two μ3-bridging S atoms, one μ3-bridging N atom from Me3SiN2−, and another N atom on the terminal azide ligand. This type of heterometallic and heteroleptic single cubane cluster represents a typical example within the Mo–Fe–S cluster family, which may be a good reference for understanding the structure and function of the nitro­genase FeMo cofactor. The residual electron density of disordered solvent mol­ecules in the void space could not be reasonably modeled, thus the SQUEEZE [Spek (2015). Acta Cryst. C71, 9–18] function was applied. The solvent contribution is not included in the reported mol­ecular weight and density.

Single crystals of the mol­ecular compound, {Cu20Ir6Cl8(C21H24N2)6(C4H4N2)3]·3.18CH3OH or [({Cu10Ir3}Cl4(IMes)3(pyrazine))2(pyrazine)]·3.18CH3OH [where IMes is 1,3-bis­(2,4,6-trimethylphen­yl)imidazol-2-yl­idene], with a unique heterometallic cluster have been prepared and the structure revealed using single-crystal X-ray diffraction. The mol­ecule is centrosymmetric with two {Cu10Ir3} cores bridged by a pyrazine ligand. The polymetallic cluster contains three stabilizing N-heterocyclic carbenes, four Cl ligands, and a non-bridging pyrazine ligand. Notably, the Cu—Ir core is arranged in an unusual shape containing 13 vertices, 22 faces, and 32 sides. The atoms within the trideca­metallic cluster are arranged in four planes, with 2, 4, 4, 3 metals in each plane. Ir atoms are present in alternate planes with an Ir atom featuring in the peripheral bimetallic plane, and two Ir atoms featuring on opposite sides of the non-adjacent tetra­metallic plane. The crystal contains two disordered methanol solvent mol­ecules with an additional region of non-modelled electron density corrected for using the SQUEEZE routine in PLATON [Spek (2015). Acta Cryst. C71, 9–18]. The given chemical formula and other crystal data do not take into account the unmodelled methanol solvent mol­ecule(s).

Characterization of a material structure with pair distribution function (PDF) analysis typically involves refining a structure model against an experimental data set, but finding or constructing a suitable atomic model for PDF modelling can be an extremely labour-intensive task, requiring carefully browsing through large numbers of possible models. Presented here is POMFinder, a machine learning (ML) classifier that rapidly screens a database of structures, here polyoxometallate (POM) clusters, to identify candidate structures for PDF data modelling. The approach is shown to identify suitable POMs from experimental data, including in situ data collected with fast acquisition times. This automated approach has significant potential for identifying suitable models for structure refinement to extract quantitative structural parameters in materials chemistry research. POMFinder is open source and user friendly, making it accessible to those without prior ML knowledge. It is also demonstrated that POMFinder offers a promising modelling framework for combined modelling of multiple scattering techniques.

Social distancing, disrupted routines, and a lost sense of security and safety have made some kids and teens vulnerable to stress, anxiety, and depression during the pandemic. A new set of tools from the National Academies helps kids and adults build skills to cope with stress.

Scientists at Iowa State University have developed a new formulation that helps to explain the self-assembly of atoms into nanoclusters and to advance the scientific understanding of related nanotechnologies. Their research offers a theoretical framework to explain the relationship between the distribution of "capture zones," the regions that surround the nanoscale "islands" formed by deposition on surfaces, and the underlying nucleation or formation process.

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The Karnataka government is planning to open two new tech clusters in Shivamogga and AICC president Mallikarjun Kharge's hometown Kalaburagi by the end of this year, the state’s industry ecosystem accelerator Karnataka Digital Economy Mission chairman Naidu BV told ET.

The bite-sized snacks are filled with hemp hearts, pumpkin seeds, sunflower seeds, chai, flax, and quinoa, and are Manitoba’s debut into the snacking category.

The combined solution creates "hand-drawn" user experience, facilitated by AI.

Store Features Ore's First Published Children's Book, "The Pixie Dogs: It's Not Easy Being a Princess"

"Never before has there been a non news channel dedicated to publicizing strategic "DIY" solutions and providing the general public with informative action plans when faced with unaticipated disasters. As a single mom I'm truly excited," Debra Ivory

Famous Frames Inc. Unveils New Site, Celebrating Over 40 Years of Artistic Excellence in Storyboarding and Illustration.

In this tutorial, we will create a retro styled rocket in Photoshop. We will explore the importance of details in creating a complex illustration, as well as how to create realistic surfaces.

Anthony Ventura, an award-winning Canadian artist, is known for his highly detailed and expressive illustrated portraits. A graduate of Sheridan College’s Illustration program, he has worked with major clients like Playboy, Rolling Stone, Time Magazine, Doritos, and ESPN, with standout celebrity pieces featuring Bob Dylan, George Harrison, and Nikki Sixx that showcase his exceptional linework […]

Early 20th-century cigarette ads glamorized smoking as a symbol of sophistication, elegance, and modernity, using stylish imagery and catchy slogans like “More doctors smoke Camels” and “It’s Toasted” to imply quality and safety. These advertisements, often featuring celebrities, marketed smoking as part of a glamorous lifestyle, making it appear desirable and socially acceptable despite the […]

Thomas Bohm rethinks technical illustrations and data visualizations, sharing interesting and uncommon examples of how to present data and information. Bar graphs and pie charts are great, but there’s so much more to explore!

The retro artwork that used to appear on old VHS tape covers has become an iconic design style that is often mimicked today. Follow along with this tutorial to create your own fun retro style poster based on the artwork of those VHS cassette covers. We’ll use Illustrator to construct the design with text and […]

The post Illustrator Tutorial: Design a Retro VHS Cover Inspired Poster appeared first on Spoon Graphics.

Follow along with this Adobe Illustrator tutorial to create a colourful gradient logo design. I’ll show you how Illustrator’s shape builder tool makes it easy to construct the basic vector logo design, then we’ll apply a vibrant colour scheme using gradients. Subscribe to the Spoon Graphics YouTube Channel Source File Download with membership

The post Design a Modern Gradient Logo Using Adobe Illustrator’s Shape Builder Tool appeared first on Spoon Graphics.

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In this tutorial we’ll be making a nautical scene with underwater elements. We’ll be using basic geometric shapes as well as creating our own brushes and doing some freehand drawing to create a unique ocean design. Let’s get started! Tutorial Details Program: Adobe Illustrator CS6 – CC Difficulty: Intermediate Topics Covered: Shape Building, Paintbrush Tool, […]

The post Create a Stylized Ocean Design in Adobe Illustrator appeared first on Vectips.

In this tutorial we will be creating a cute smiling heart with floral decorations, that can be easily turned into a postcard by adding text to the composition. We’ll be using basic shapes and tools for creating the smiling heart itself and adding details. Let’s get started! Tutorial Details Program: Adobe Illustrator CS6 – CC […]

The post How to Draw a Smiling Heart for St. Valentine’s Day in Adobe Illustrator appeared first on Vectips.

Follow this tutorial to create a trendy flat teacup logotype in Adobe Illustrator! We’ll be using and modifying basic geometric shapes, working with Align panel, Pathfinder functions and learning simple yet very useful tips and tricks. Let’s get started!   Tutorial details: Program: Adobe Illustrator CC Difficulty: Beginner Topics Covered: Logotype Design, Shape Building, Compositional Skills Estimated […]

The post Design a Flat Teacup Logotype in Adobe Illustrator appeared first on Vectips.

Are you looking for a way to create an effective grid system in Adobe Illustrator? If so, then you've come to the right place! This quick tutorial will teach you how to make a comprehensive and visually appealing grid using the popular vector graphics software. While creating grids manually can be time-consuming, with this tutorial,...

The post How to Make a Grid in Adobe Illustrator (Rectangular and Polar) appeared first on Bittbox.

Ready to add the finishing touches to your design in Adobe Illustrator? But the objects aren’t properly aligned? Does your design look unprofessional because it isn’t adjusted properly? Well, worry no more! Because with just a few steps, this tutorial explains how to use Illustrator's Scale Tool to resize, adjust, and align your design perfectly.  ...

The post Scale Tool in Illustrator: What It Does and How to Use It  appeared first on Bittbox.

The background plays a significant role in making a design pop. As a designer, changing the background color is something you'll probably do frequently when working in Adobe Illustrator. There are several ways to change the background color in Adobe Illustrator. In this tutorial, we'll learn how to change the background color in Illustrator quickly...

The post How to Change the Background Color in Adobe Illustrator appeared first on Bittbox.

When you're working in Adobe Illustrator, you may need multiple layers. And when we're talking about having multiple layers, it's easy to confuse layers with artboards. However, duplicating layers and duplicating artboards are not the same. You can have multiple artboards (or canvases) in Illustrator, and you can create multiple layers on a single artboard....

The post How to Duplicate a Layer in Adobe Illustrator appeared first on Bittbox.

Who doesn't want their designs to stand out? If you want to make your design unique, you have to go beyond the same old shapes. In such case, the Free Transform Tool is what you need. This tool allows you to manipulate your objects and shapes in many ways. This tutorial will provide you with...

The post Guide to the Free Transform Tool in Adobe Illustrator appeared first on Bittbox.

We all know that color is the essence of any artwork. It's the language through which artwork communicates its message and tone. And recoloring artwork can bring new life to a design, giving it a fresh and captivating look. Fortunately, Adobe Illustrator offers a fantastic tool that makes recoloring artwork easy, smooth, and flexible. In...

The post How to Recolor Artwork in Adobe Illustrator appeared first on Bittbox.

The Slice Tool in Illustrator is an excellent tool for dividing artwork into smaller pieces for various purposes, like web design, logo creation, creating interactive elements, and more. It separates parts of an element that can be saved as individual images. In this tutorial, we'll discuss the concept of the Slice Tool and provide a...

The post How to Use the Slice Tool in Adobe Illustrator appeared first on Bittbox.

I’ve recently created new illustration, Japan Earthquake 11-03-2011, that was inspired by the recent disaster in Japan. With this illustration I’ve joined force with To Japan with Love, a group of artists who are aiming at raising funds for Japan earthquake relief efforts. My illustration will be showcased at the art show (May 4th, 2011 […]