Questions tagged [dataset]

A dataset is a collection of data, often in tabular or matrix form. This tag is NOT intended for data requests ("where can I find a dataset about ...") --> see OpenData

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which machine learning algorithm would give high accuracy in predicting the movie rating

I want to predict the movie rating with the help of voted users, profit, FB likes, etc. which algorithm would the best to predict it
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1answer
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Training a neural network with TWO possible correct outputs for one input

I have a system as a black box that has two correct outputs for a single input sample. now I want to train a neural network to generate at least one of the correct outputs for that input sample. what ...
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Is there is exists dataset contains images labels/classes from some social network like Instagram?

I'm doing a recommender for one social network disabled yet. Social network includes images post, like in Instagram. My idea is scrap images labels/classes and then try to classify it in some given ...
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Matching documents from different sets with tfidf and cosine distance

I have two different set of documents S1, S2, with 30 text documents each. Using some text representation method, such as tfidf ...
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1answer
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Storing Large dataset for processing and analysis of data

I am new to data engineering and wanted to know , what is the best way to store more than 3000 GB of data for further processing and analysis ? I am specifically looking for open source resources . I ...
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dataset split for image classification

I am trying to do image classification for 14 categories (around 1000 images for each cat). And i initially created two folders for training and validation. In this case, do I still need to set a ...
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1answer
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Why are ordered lists considered one dimensional?

At Uni I am currently taking data visualization as a course. While reading thru the script I stumbled upon two examples for one dimensional data. Example one: Bus stops with their name and order (...
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Extracting features of the data using statistics? [closed]

May I know which statistical approach is best suited in data science to introduce new features or extract hidden features of a given dataset? For example I have a following dataset of rectangular ...
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Recovering data from under sampled data streams?

I’m trying to analyze a repeated data stream from a sensor. The data probably has events at the 100us scale, it occurs at a fairly random interval, and the signals are extremely similar. The problem ...
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Representing multi-channel input signals with a single signal

I am working on an EEG signal classification problem. My dataset consists of EEG signals stored as 19X30000 NumPy arrays. Each row represents a single channel. For now, I am converting each of the ...
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How can I reduce the volume of data (No column to be dropped)?

I have a data set of 80,000 samples (40k 3 axis accelerometer and 40k Gyro data). I am trying to implement KNN and Random Forest for activity recognition on ESP8266 Node MCU. The limited memory of the ...
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Open dataset of Adobe analytics data? [closed]

I'm trying to create a mock environment for testing queries against Adobe Analytics events data, is there any place I could find such public data, json or tables, anything will do. (found some google ...
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1answer
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How to operate dataset from paperswithcode.com?

I'm trying to use IG-3.5B-17k dataset from paperswithcode.com, but I can't figure out how to do that exactly. How to do it? I guess I need to use this site API? Am I even able to use this dataset?
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How can I include these 4 variables into my code in R [closed]

Here's a glimpse of the dataset I'm using. SpeedDating dataset: The data set I'm using is SpeedDating. My goal is to look at whether or people prefer to date each ...
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Consolidating Region Dimensions in Tableau

I am currently using the example excel spreadsheet in Tableau. After dragging category and segment dimensions to rows and the region dimension and quantity measure to columns, I realize there are two ...
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How to deal with a small dataset for image classification using CNN?

I have a dataset consisting of characters(lowercase and uppercase) and numbers, totalling about 62 classes. The data I have are about 45 images per class and no test data. The data is a subset of the ...
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How can i get all the values related to the first column in a direct or indirect relationship?

I wanna write a function using python that allows me to compare each value from the second column of my DataFrame with the first column and if they don't matche compare the second column in the same ...
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Hypothesis about Telecom Data Analysis - a Q from new learner

in one of my online courses, I'm supposed to analyze and plot any problem of my choice, cool right! Accordingly, I have the data from one Internet Service Provider (ISP) which is related to the ...
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Image parameters for SRGAN

In some implementations of SRGAN I've noticed, that datasets consist of the high-resolution images and the low-resolution images are created later by, e.g. resizing (decreasing the size) hr-images. ...
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Demand Prediction (Retail Sales) Datasets for Benchmarking

I've been looking for 2 days and can't seem to find what would normally appear as trivial: a Time series (preferabl daily or intra-day resolution) Demand or Sale Labelling Retail Dataset Preferably ...
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Are there any publicly available scan document database containing text together with ticked/unticked checkboxes?

I would like to train an optical mark recognition model (OMR) to detect and classify the ticked/unticked state of checkboxes in documents. Does anyone know where I can have access to a publicly ...
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2answers
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How to read the labeled enron dataset categories?

I am trying to use the labeled Enron dataset (link) but I am really confused about the labeling system they use. I understand the Cat_[1-12]_level_weight is some ...
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Measuring stability of data and determining minimum size of dataset

I come from a different field so please bear with me. I have a list of users using a certain application, after each usage certain data is collected about how the session went from a network ...
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1answer
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Given a regression based model with many feature variables; what tools would you utilize to figure out which feature variables add the most variance?

Given a hypothetical dataset {S} with 100 X feature variables and 10 predicted Y variables. X1 ... X100 Y1 .... Y10 1 .. 2 3 .. 4 4 .. 3 2 .. 1 Let's say I want to improve the accuracy of Y1. I am ...
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1answer
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What is the proper proportion for train and test set for classification system?

I have recently googled the best proportion for training and test set for classifying physiological data between normal and abnormal. Much of the source tells that the proportion should be 70:30 or 80:...
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Available data sets on basic income pilot studies? [closed]

I'm interested in exploring data relating to any UBI/basic income pilot studies that have been conducted but have been unable to find any so far? thanks
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1answer
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Do I load all files at once or one at a time?

I currently have $1700+$ CSV files. Each of them is in the same format and structure, give or take a row or possibly a column at the end. Each CSV is $\approx 3.8$ MB. I need to perform a ...
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1answer
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California housing prices dataset on Kaggle

This is the dataset I'm referring to: https://www.kaggle.com/camnugent/california-housing-prices I am a bit confused regarding the dataset. Specifically, why is the number of houses not provided? We ...
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Question on What I would use for a Piece of Data

I have 3 categories that we can call A, B, and C. In almost every case we B/A = C. B and A are given in the Dataset and C is what I am find an trying to use elsewhere. The higher number C is the ...
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How could I find the number of instances per fold to plot a histogram, in my dataset?

I am currently trying to learn machine learning with Python, and I have been given an .npz file containing the data. I have explored the dataset, and after exploration noted that it has 5 datatypes: <...
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How to create a matrix in excel

I'm solving a system of equations in excel on a rolling data series. In each row is the data for a matrix that I need to invert, but I'm having a difficult time creating the matrix inline. I will do ...
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1answer
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Is there an appropriate use of adjusting class weights for a balanced dataset?

I ask this because I am currently working with a CNN model built for diagnosis of pneumonia. Originally, I followed a notebook on kaggle to build the model and thereby learn what each bit of code is ...
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1answer
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Technical term to describe/differentiate the structure of an instance by the number of samples per instance ('tuple' vs 'time series')

Several terms are used to describe the structure of instances of a dataset. For example, an instance can be 'univariate' if it depends on only one variable or 'multivariate' if it depends on 2 or more ...
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Resampling : My dataset is categorical or numerical?

I have a dataset with 203 variables. Like age>40 (0 -yes, 1-no), gender(0 or 1), used or not 200 types of drugs (one hot encoded into 200 variables), and one target variable (0 or 1). This is an ...
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How to Combine Oracle and Snowflake/Redshift data on the fly

Have a Schema.Table_Name on Oracle. Exactly similar table is on Snowflake with same metadata(Schema.Table_Name). How can I combine data from two on the fly without moving Oracle data to Redshift. Most ...
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1answer
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Understanding features vs labels in a dataset

I am in the process of splitting a dataset into a train and test dataset. Before I start, this is all relatively new to me. So, from my understanding, a label is the output, and a feature is an input. ...
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1answer
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Where can I find a dataset that contains criminal case sentencing data? [closed]

I would like to study a dataset where each record represents a criminals case in the US and contains attributes such as: Type of crime Defendant Age/Sex/Race Plea Verdict Sentence Is there a dataset ...
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Dataset for simultaneous object detection, 6D pose estimation and grasp detection

I am trying to find a dataset which meets any of the following requirements. Dataset of RGB or RGBD images with object bbox annotations, 6d pose annotations and grasp annotations. Dataset of RGB or ...
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Definitions/meanings of UCI Census-Income KDD dataset variables

Where can you find more detailed information on the variables in the UCI census income dataset? (Available here). For example, what do the codes mean in the variable: ...
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1answer
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Read csv file and save images from the output

I have created some code that reads my CSV file and converts the dataset to a grayscale image. I want to know if there is any possible way to read through each row in the dataset and save each of the ...
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Cross validation for Collaborative filter-based recommendation systems

I am an absolute beginner and am trying to implement collaborative filter for furniture ecommerce (think wayfair). I need some guidance about cross-validation strategy. Situation: I am working on a ...
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Download weather data from a http directory

This link contains weather data with a lot of folders and subfolders. I need to download as a whole without visiting every file inside the folders. https://www.ncei.noaa.gov/data/global-forecast-...
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The tag preprocessing says it is a data-mining technique ! Is it a correct definition?

This site appears to give Wrong definition of preprocessing of data.Data-mining has no connection with preprocessing of data. The data preprocessing focuses on data preparation for developing software ...
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Retrieving image masks from PASCAL and COCO segmentation annotations

How do I retrieve image masks for instance segmentation data which has annotations saved in the COCO and PASCAL annotation formats with python? The format is very confusing for instance segmentation ...
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1answer
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Dataset used for regression

Using Linguistic Cues for the Automatic Recognition of Personality in Conversation and Text www.aaai.org › JAIR-3012PDF Web results Using Linguistic Cues for the Automatic Recognition of Personality ...
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Person names dataset

Is there publicly available dataset containing real world people names? I’m looking for dataset containing names from different regions and cultures. I want to use it for research on name ...
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1answer
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How to calculate an average cliff date?

Please let me know if this question belongs elsewhere. In my simple data set focused on sales pursuit opportunities, I have the following columns available. Pursuit Name Status(Open, Won, Lost) Date ...
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Material Science dataset with feature-dependent inputs

I'm dealing with a material science/chemistry dataset where I have a bunch of duplicates inputs formulas corresponding to different values of a specific features like temperature. It looks something ...
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1answer
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Consequences of using XGBoost regressor for small dataset(< 500 rows)

I am using XGBoost regressor to train my model for 322 rows of data and the train and test split is as follows: ((257, 9), (257,), (65, 9), (65,)) I am using the ...

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