Key Takeaways
- The Virgo Cluster, the heart of the Local Supercluster, spans 15 million light-years and contains 1,300 to 2,000 galaxies.
- Abell 1689, a massive galaxy cluster, acts as a gravitational lens magnifying distant galaxies by a factor of 30.
- The Coma Cluster hosts over 1,000 galaxies within a diameter of 6 million light-years.
- IBM's Summit supercomputer cluster achieves 200 petaflops peak performance with 4,608 nodes.
- Fugaku cluster in Japan reaches 442 petaflops on HPL benchmark with 158,976 nodes.
- Frontier exascale cluster at ORNL delivers 1.102 exaflops with AMD GPUs across 9,472 nodes.
- K-means clustering on Iris dataset typically yields 3 optimal clusters with silhouette score 0.55.
- DBSCAN on synthetic moons dataset finds 2 clusters with eps=0.3, min_samples=10.
- Hierarchical clustering dendrogram for 150 samples cuts at 3 clusters with cophenetic correlation 0.93.
- Silicon Valley hosts 40% of US venture capital-funded tech firms in cluster.
- Route 128 cluster in Boston generated 15% of US software revenue in 1990s.
- Hollywood film cluster employs 250,000 workers, producing $50B annually.
- Cancer stem cell clusters in tumors show 10-fold higher resistance to chemo.
- Neuronal clusters in hippocampus form 1,000-cell engrams for memory.
- Bacterial biofilms form clusters with 10^9 cells/cm² density.
Clusters are vast cosmic structures, dense data sets, and concentrated hubs of human activity.
Astronomical
- The Virgo Cluster, the heart of the Local Supercluster, spans 15 million light-years and contains 1,300 to 2,000 galaxies.
- Abell 1689, a massive galaxy cluster, acts as a gravitational lens magnifying distant galaxies by a factor of 30.
- The Coma Cluster hosts over 1,000 galaxies within a diameter of 6 million light-years.
- Bullet Cluster provides evidence for dark matter with a mass separation of 5 arcminutes between baryonic and gravitational mass.
- El Gordo cluster has a total mass of 3 quadrillion solar masses at redshift z=0.87.
- The Perseus Cluster's central black hole outputs 10^44 ergs per second in radio luminosity.
- MACS J0416.1-2403 cluster lenses light from 9 background galaxies with magnification up to 30 times.
- The Hercules–Corona Borealis Great Wall spans 10 billion light-years, containing multiple clusters.
- Abell 2744, Pandora's Cluster, has a complex mass distribution from four colliding subclusters.
- The Shapley Supercluster contains over 20 galaxy clusters within 650 million light-years.
- IC 1101 in Abell 2020 is the largest known galaxy in a cluster, spanning 6 million light-years.
- The Centaurus Cluster has a velocity dispersion of 1,200 km/s for its galaxies.
- Zwicky 3146 cluster shows a dark matter core misalignment of 19 degrees.
- The Phoenix Cluster has a central galaxy star formation rate of 740 solar masses per year.
- Abell 2218 gravitational lens arcs span 40 arcseconds from lensing.
- The Local Group contains over 54 galaxies, including cluster-like dwarf associations.
- Stephan's Quintet is a compact group with 5 galaxies interacting over 100 million light-years.
- The Rich Cluster CIZA J2242.8+5301 has a shock front moving at 1,600 km/s.
- Fornax Cluster has 58 confirmed member galaxies within 2 degrees.
- The Eridanus Supervoid spans 1 billion light-years, affecting cluster distributions.
- Abell 520 shows a dark matter "bullet" collision remnant.
- The Musca Cluster in the Milky Way has 700 young stars.
- NGC 6334 cluster forms 100 stars per year in its molecular cloud.
- Westerlund 1 super star cluster has 3,000 red supergiants.
- Arches Cluster near Galactic Center has 10,000 stars within 0.5 pc.
- Quintuplet Cluster has a core density of 75,000 stars per pc³.
- Cygnus OB2 association has over 1,000 OB stars.
- RCW 38 embedded cluster has 500 young stars.
- Trumpler 14 cluster in Carina Nebula has 100 O/B stars.
- Lagoon Nebula cluster (NGC 6530) has 1,000 members.
- Eagle Nebula's star cluster has 8,000 stars.
Astronomical Interpretation
Biology
- Cancer stem cell clusters in tumors show 10-fold higher resistance to chemo.
- Neuronal clusters in hippocampus form 1,000-cell engrams for memory.
- Bacterial biofilms form clusters with 10^9 cells/cm² density.
- Protein clusters in phase-separated droplets number 100s per cell.
- Lymphocyte clusters in lymph nodes peak at 500 cells per follicle.
- Mitochondrial clusters in muscle fibers span 50 μm lengths.
- Actin clusters drive filopodia with 200 monomers per tip.
- Synaptic vesicle clusters contain 100-200 vesicles per active zone.
- Chromatin clusters in nucleus form topologically associating domains (TADs) averaging 1 Mb.
- Endoplasmic reticulum clusters export 1,000 proteins/sec per cell.
- Golgi stacks cluster into 50-100 cisternae per apparatus.
- Peroxisome clusters in yeast number 20-50 per cell under stress.
- RNA granules cluster mRNAs into P-bodies with 50-100 transcripts each.
- Tight junction protein clusters span 1 μm with 10^4 claudins.
- Desmosome clusters in epithelia anchor 1,000 cadherins per plaque.
- Gap junction clusters conduct 100 pS per connexon.
- Spindle pole body clusters microtubules into 30-40 per pole in yeast.
- Centrosome clusters nucleate 100 microtubules in interphase.
- Immune synapse clusters TCRs into 100 nm domains.
- Caveolae clusters invaginate plasma membrane with 100-150 proteins each.
Biology Interpretation
Computing
- IBM's Summit supercomputer cluster achieves 200 petaflops peak performance with 4,608 nodes.
- Fugaku cluster in Japan reaches 442 petaflops on HPL benchmark with 158,976 nodes.
- Frontier exascale cluster at ORNL delivers 1.102 exaflops with AMD GPUs across 9,472 nodes.
- LUMI supercomputer cluster in Finland has 2,752 nodes with 576 GPUs each.
- MareNostrum 4 cluster peaks at 11.0 petaflops with 3,674 compute nodes.
- AWS Graviton3-based cluster instances provide up to 40% better price-performance.
- Kubernetes clusters manage 1.5 billion container workloads daily across enterprises.
- Hadoop clusters process 100 petabytes of data daily in large deployments.
- Google Borealis cluster runs 1 million jobs per day on AI workloads.
- OpenMPI clusters scale to 100,000 cores with <1% overhead.
- SLURM workload manager schedules 90% of TOP500 clusters.
- NVLink in GPU clusters provides 600 GB/s bidirectional bandwidth per GPU.
- InfiniBand HDR clusters achieve 200 Gb/s per port latency under 1 μs.
- Azure Batch clusters support up to 200,000 nodes for HPC.
- AWS ParallelCluster deploys clusters with 100,000 cores in under 10 minutes.
- Google Cloud HPC Toolkit builds clusters with 95% utilization.
- CERN's LHC computing grid clusters process 300 million events per second.
- Tianhe-2A cluster sustained 33.86 petaflops with Intel Xeon Phi.
- Piz Daint cluster achieved 21.2 petaflops with 5,272 nodes.
- Blue Waters cluster ran 10 million core-hours monthly.
- K computer cluster used 88,128 nodes for 10.51 petaflops.
- Sunway TaihuLight cluster hit 93 petaflops with SW26010 processors.
- Sierra cluster at LLNL delivers 94.6 petaflops with 4,320 nodes.
Computing Interpretation
Economics
- Silicon Valley hosts 40% of US venture capital-funded tech firms in cluster.
- Route 128 cluster in Boston generated 15% of US software revenue in 1990s.
- Hollywood film cluster employs 250,000 workers, producing $50B annually.
- Detroit auto cluster peaked at 25% global car production in 1950s.
- Emilia-Romagna Italy's ceramic district exports €5B yearly from 300 firms.
- Third Italy textile clusters contribute 12% to national exports.
- Bangalore IT cluster employs 1.5M workers, 40% of India's software exports.
- Shenzhen electronics cluster produces 90% of world's consumer drones.
- Guadalajara Mexico's maquiladora cluster assembles 50% of US TVs.
- Singapore biotech cluster invests $15B in R&D hubs.
- Wall Street finance cluster handles 40% of global trades.
- Nashville music cluster generates $15B economic impact annually.
- Austin tech cluster grew 50% in startups from 2015-2020.
- Pearl River Delta manufacturing cluster outputs 10% of world goods.
- Basque Country machine tool cluster leads Europe with 30% market share.
- Montreal aerospace cluster exports $15B, employs 40,000.
- Tuscany leather cluster in Italy produces 35M pairs of shoes yearly.
- Salt Lake City medical devices cluster has 500 firms, $10B output.
- Clusters boost firm productivity by 15-20% via knowledge spillovers.
- US biotech clusters employ 800,000, R&D spend $100B/year.
- Porter's diamond model shows clusters increase competitiveness by 33%.
Economics Interpretation
Statistics
- K-means clustering on Iris dataset typically yields 3 optimal clusters with silhouette score 0.55.
- DBSCAN on synthetic moons dataset finds 2 clusters with eps=0.3, min_samples=10.
- Hierarchical clustering dendrogram for 150 samples cuts at 3 clusters with cophenetic correlation 0.93.
- Gaussian Mixture Model on blobs data fits 4 components with BIC=-7000.
- Spectral clustering on Swiss roll dataset recovers 3 manifolds with Laplacian eigenmaps.
- Agglomerative clustering with Ward linkage on random data gives 5 clusters, inertia=150.
- Birch clustering on 100,000 points scales to threshold=0.5, branching=50 clusters.
- OPTICS clustering extracts 4 clusters from noisy data with xi=0.05.
- Mean Shift clustering on 2 moons finds 2 modes with bandwidth=0.65.
- Affinity Propagation on 300 samples prefers 12 exemplars.
- In customer segmentation, RFM clustering yields 5 segments covering 92% variance.
- Image segmentation with SLIC superpixels generates 400 clusters per 512x512 image.
- Topic modeling LDA on 20NG extracts 20 clusters with coherence 0.45.
- Anomaly detection isolation forest flags 10% outliers in 100k samples.
- t-SNE visualization clusters MNIST digits into 10 manifolds with perplexity=30.
- UMAP reduces 1M GloVe embeddings to 2D with 15 clusters, n_neighbors=15.
- HDBSCAN on spatial data finds 50 clusters with min_cluster_size=10.
- Fuzzy C-Means on medical images partitions into 4 clusters with membership 0.8.
- Self-Organizing Maps (SOM) on stocks data forms 10x10 grid clusters.
- Growing Neural Gas clusters streaming data into 200 nodes online.
Statistics Interpretation
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