cluster-analysis Questions

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I am trying to work on a clustering problem for which I need to plot a scatter plot for my clusters. %matplotlib inline import matplotlib.pyplot as plt df = pd.merge(dataframe,actual_cluster) plt....
Thibodeaux asked 23/8, 2016 at 2:43

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I am using this GSDMM python implementation to cluster a dataset of text messages. GSDMM converges fast (around 5 iterations) according the inital paper. I also have a convergence to a certain numb...
Maryjomaryl asked 4/6, 2020 at 9:18

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I'm clustering a sample of about 100 records (unlabelled) and trying to use grid_search to evaluate the clustering algorithm with various hyperparameters. I'm scoring using silhouette_score which w...
Rookie asked 5/1, 2016 at 11:49

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I've been searching for an answer for this question for quite a while, so I'm hoping someone can help me. I'm using dbscan from the fpc library in R. For example, I am looking at the USArrests data...
Desiraedesire asked 15/10, 2012 at 10:12

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I am confusing about the difference between "sklearn.cluster.k_means" and "sklearn.cluster.KMeans" when I should use one of them?
Coralline asked 23/12, 2017 at 21:30

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I am a student of clustering and R. In order to obtain a better grip of both I would like to compute the distance between centroids and my xy-matrix for each iteration till it "converges". How can ...
Tauten asked 22/11, 2014 at 20:49

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I have a database of images that contains identity cards, bills and passports. I want to classify these images into different groups (i.e identity cards, bills and passports). As I read about that,...

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I want to know whether the k-means clustering algorithm can do classification? If I have done a simple k-means clustering . Assume I have many data , I use k-means clusterings, then get 2 cluster...
Tague asked 10/3, 2014 at 13:0

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I'm trying to draw a complete-link scipy.cluster.hierarchy.dendrogram, and I found that scipy.cluster.hierarchy.linkage is slower than sklearn.AgglomerativeClustering. However, sklearn.Agglomerati...
Patchouli asked 10/11, 2014 at 19:33

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I am learning python scikit. The example given here displays the top occurring words in each Cluster and not Cluster name. http://scikit-learn.org/stable/auto_examples/document_clustering.html I...

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I am unclear about why k-means clustering can have overlap in clusters. From Chen (2018) I saw the following definition: "..let the observations be a sample set to be partitioned into K disjoint c...
Elburr asked 29/3, 2020 at 11:15

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I am unable to manage the RSS feeds easily due to an overwhelming number of new stories / similar news contents posted in various news sites. For subjects such as world news and business news, many...
Nationwide asked 18/10, 2010 at 10:9

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Data I have the following (simplified) dataset, we call df from now on: species rank value 1 Pseudomonas putida family Pseudomonadaceae 2 Pseudomonas aeruginosa family Pseudomonadaceae 3 Enterob...
Proportioned asked 28/3, 2020 at 17:14

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This code is what I am using for silhouette_score. And in here I am using Agglomerative Clustering, linkage as Ward. I would like to get "Centroid" of Agglomerative Clustering, would it be possibl...
Concepcionconcept asked 5/6, 2019 at 8:13

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I'm doing some tests clustering a big number of very large sparse vectors representing term-frequency-inverse-document-frequency of various hypertextual documents. What algorithm would you suggest ...
Kollwitz asked 8/10, 2009 at 18:51

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I am using Scipy for hierarchial clustering. I do manage to get flat clusters on a threshold using fcluster. But I need to visualize the dendrogram formed. When I use the dendrogram method, it work...
Eddie asked 18/4, 2012 at 6:42

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Today i'm trying to learn something about K-means. I Have understand the algorithm and i know how it works. Now i'm looking for the right k... I found the elbow criterion as a method to detect the ...
Pantywaist asked 5/10, 2013 at 12:19

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You can easily extract the silhouette score with 1 line of code that averages the scores for all your clusters but how do you extract each of the intermediate scores from the scikit learn implement...
Flowerlike asked 26/1, 2020 at 15:8

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How do I plot (in python) the distance graph for a given value of min-points in DBSCAN??? I am looking for the knee and corresponding epsilon value. In the sklearn I do not see any method that r...
Porphyritic asked 1/4, 2017 at 18:0

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I am working on a python project where I study RNA structure evolution (represented as a string for example: "(((...)))" where the parenthesis represent basepairs). The point being is that I have a...

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I trained a KMEANS clustering model using Google Bigquery, and it gives me these metrics in the evaluation tab of my model. My question is are we trying to maximize or minimize Davies-Bould...
Overcompensation asked 11/12, 2019 at 4:48

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Hopefully this can be done with python! I used two clustering programs on the same data and now have a cluster file from both. I reformatted the files so that they look like this: Cluster 0: Bruce...
Lisk asked 25/7, 2013 at 19:19

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What is meant by "random-state" in python KMeans function? I tried to find out from Google and referred https://scikit-learn.org/stable/modules/generated/sklearn.cluster.KMeans.html but I could not...
Disulfiram asked 8/9, 2017 at 4:39

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I need to perform clustering without knowing in advance the number of clusters. The number of cluster may be from 1 to 5, since I may find cases where all the samples belong to the same instance, o...

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My task is to perform clustering on a data set. The variables have been scaled and centered. I am using the following code to find the optimal number of clusters: d <- dist(df, method = "eu...
Culex asked 4/5, 2016 at 17:49

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