Questions tagged [predictive-modeling]

Statistical techniques used for predicting outcomes.

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1answer
12 views

Best way to evaluate performance for my case

I have dataset that looks like this ...
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0answers
25 views

Hedge fund rank on their returns or rating predictions modeling problem

Problem: Hi, I m a new machine learning practitioner. I have a dataset about hedge funds. It contains monthly hedge fund returns and some financial metrics. I calculated metrics for every month from ...
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15 views

Use of variance of estimators in cross-validation [migrated]

Let's suppose we are using K-fold cross validation on a set of data of dimension $N_{data}$. We do not want to fix any parameter but just to get a confidence of the predictive power using the ...
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11 views

Forecasting sales during time of epidemic

As we are going through a tough time because of the Coronavirus epidemic, is it possible to somehow include this affect of this in predicting sales as a time-series for next few weeks? I am new to ...
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14 views

How to deal with inputs who have an inverse correlation for regression? [closed]

I'm trying to predict a value using multiple input values and I also want to know the effect that each input value has on the predicted value. Some of my inputs have an inverse correlation with each ...
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1answer
27 views

Meaningful predictive analytics for small (n=114) dataset with just 1 explanatory variable and 1 response variable?

I am given an Excel pivot table that aggregates data from a somewhat sizable data source (a database table with 1.9m records and another of about 490k). The data within the Excel file consists of 3 ...
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1answer
29 views

What model do I use to predict a regression problem with timeseries data

Overall Goal To predict how much reagent "A" I started with in a reaction. Data: To predict this I have timeseries data of reagent "B". For each time step a measurement of reagent "B" is taken (the ...
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11 views

How to select a model [closed]

I have a 3 years data set from an IT service desk with dates, calling parties, handler, region, place, who was it assigned to, who fixed the issue ... I assume you get the point Now I do not know what ...
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13 views

Predicting future of power consumption in repeating manufacturing process

I have this situation. We are tracking the power consumption of an industrial machine and by looking at the power consumption (in watt) we're trying to predict whenever something will break resulting ...
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9 views

What are and how can I unserstand/process geo levels id from this dataset?

I am using the dataset from this driven data competition: https://www.drivendata.org/competitions/57/nepal-earthquake/data/ There are three features (geo_level_id_1, geo_level_id_2, geo_level_id_3) ...
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14 views

HR Machine Learning: Treating/ Standardizing Part Time Employee Sums To Their Full Time Equivalents in Attrition Modeling

My data set consists of a subset of employees. Each employee has general HR information (typical standard hours, department, site, etc) along with punch card data which gives a clear picture of the ...
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1answer
17 views

Ideal strategy for multi variable regression attempting to maximize the target

I am trying to implement machine learning for the following data Data Input What I am trying to achieve is to keep the ad bid & cost per sale as low as possible while increasing sales. This is ...
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1answer
14 views

Using a past time series to predict how a present time series will pan out?

Let's say that I have past data indicating how some time series panned out. Now I also have the beginnings of a new time series that I expect to pan out in a similar trend to the old one. What are ...
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2answers
105 views

Determine statistically whether new product cannibalise old product by using data

Assume that $A$ is a cab company which offers online cab booking through their standard account. Recently, the company launched a pre-paid premium account with features such as discounted rides,...
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16 views

Clustering a dataset and creating a model per each cluster

I was wondering if it makes sense to cluster a dataset to find closely related data points and train a binary classification model for each of this clusters as they would be minidatasets. I'll ...
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12 views

Trouble understanding how I could use multivariate time series to predict when an error will occur?

First off, I have very limited knowledge statistics-wise and am more of a coder. I was thrown into a large scale project and could use some guidance. I have a large multivariate time series dataset ...
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17 views

Serializing a trained classification model into a set of actionable insights

I'm looking for ways to convert a trained classification model into a list of insights based on the resulting parameters of the model. To make an example, let's assume we trained a decision tree to ...
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1answer
18 views

I want to detect similar meaning in sentence “in my final year web based system” [closed]

When students submit a topic for his/her final year research, the system should be able to detect that this topic was carried on by some student or already exists. How can I be able to do it? If its ...
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0answers
35 views

RUL prediction without failures in historical data

I have faced in the past some problems of predictive maintenance where I had historical sensor data with failures. With this kind of dataset, you can calculate the RUL (Remaining Useful Life) and ...
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20 views

Plotting the decision boundary of different combination of 2 features from amongst a large number of features

How to plot the decision boundary of different combinations of 2 features from 107 feature data set? ...
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0answers
11 views

How to set anomaly threshold depending of predictive model accuracy

Say I have a variable with a standard deviation STD I have a predictive model to predict variable. The model accuracy is 80% An anomaly is raised if difference (predicted_value - actual value) > ...
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1answer
16 views

How do I build a model to predict which service a customer will use on an app?

There's an app with over 50 services. I have the data on the type of service a specific customer (they have a unique customer number) does on the app, the date, location, time, duration on a service ...
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130 views

nlp method to define/predict labels from text

I have a hundreds of invoices from company A to company B. Structure of every invoice is different, but in every invoice I have typical labels like date, company title, company id, amount etc. I ...
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1answer
27 views

Identifying and Accounting for trend/seasonality in Predictor Variables

I'm currently working with a dataset that has been collected over several years, and I suspect my predictor variables are changing over time for their predictive power. I could go back year by year ...
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0answers
20 views

Model-independent measures for feature importance given highly correlated features

I am currently working on a research project where the central question is which features drive the prediction of different models. The main issue is, that there is high (multi-)collinearity among ...
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1answer
23 views

How can you adjust a prediction based on features in the future being different than predicted?

I have a model that takes mostly cumulative data, and makes a prediction. It's not baseball, but I'm using this as a pretty accurate analogy. You put in all the totals so far, and it make a prediction ...
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2answers
108 views

How to train my model efficiently?

I am new to ML and have been reading online about training bottlenecks when there are frequent updates to data. Let's say I have a built a model based on a dataset of 10M records. Now, in another 2 ...
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2answers
40 views

What is an appropriate approach to sampling for probability of default using a classification model?

If we have a loan book and want to train the data to predict the probability of default, what is an appropriate way to sample the historical data to train the model, given that each account is open ...
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12 views

Matlab - Financial Modeling, Linear Regression with Prior

Am trying to implement this equation from the book Doing Data Science Straight Talk from the frontline, In chapter 6, page 161, equation below: From what i can tell it is pretty much an enchanced ...
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0answers
8 views

Clustering and producing final results to find next best customer to target(Ranked)

I have a problem where I need to cluster customer data that has all possible attributes to identify the next potential customer who can succeed the last customer in terms of buying a certain product. ...
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4answers
59 views

Machine learning approach for predicting set members

Say I have a large training dataset containing sets of 40 items each, and each item in the set is unique (so every training input is a set $S=\{i_1, i_2, ..., i_{40}\}$), and there are more than 40 ...
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1answer
28 views

Predicting the next occurrence based on binary

I have no experience in statistics or machine learning. I have a True/False binary array describing occupation of open public spaces ...
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0answers
15 views

GuassinaNB parital fit not working properly

I'm trying to make a partial fitting with GuassianNB here's small snippet of my code ...
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0answers
36 views

How can I improve the accuracy of my model? (Cab Cancellation Prediction)

I am trying to predict based on several parameters like trip type, car type, source of booking, start time, lead time (start- book) and a few other params whether or not a customer will cancel. From ...
2
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1answer
24 views

Prediction for Current month based on last month's Labels

I have monthly data of loan installment repayment. The data contains basic features like salary,age,gender, credit score etc. Along with above features, i have data for last 6 installment failure/...
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2answers
127 views

Modelling data with Machine learning without a target variable

I want to understand the required steps that need to be taken into account while handling a dataset that does not have a target variable. I can do machine learning on top of a labeled dataset having ...
4
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1answer
173 views

Calculate confidence score of a neural network prediction

I am using a deep neural network model to make predictions. My problem is a classification(binary) problem. I wish to calculate the confidence score of each prediction. As of now, I use ...
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0answers
18 views

Calculate marginal probability distributions of a dataset

I have a dataset with 'n' features and a label(binary) corresponding each entry. I am using a predicitive model to predict these labels using those 'n' features. Now, I wish to know the marginal ...
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4answers
1k views

In industry, what type of new data science algorithms does one develop?

I've seen several job descriptions for data science which include developing a novel algorithm to be a part of production environments. Can you give some input of what could be meant here exactly? ...
4
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1answer
28 views

Modifying a distribution by adding in samples incrementally

I would like to calculate the distribution (e.g., Gaussian) of a set of samples. However, I would also like to see how the distribution changes as I fit the samples into the distribution ...
2
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1answer
47 views

Machine learning solution approach to match loan repayments

I'm relatively new to the AI/ML space, but come from a programming background. The problem: I have a dataset of users transactions who have taken short-term loans from a single loan provider and I ...
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0answers
22 views

Improving a simple trig model

I have some data which I know is well approximated as a trig function, and I can fit it with scipy.optimize.curve_fit as follows: ...
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2answers
43 views

To find lookalike customers for Digital media targeting [closed]

I want to develop a model for digital marketing team. We have some set of ideal customers to whom we to send our promotions and have been converted. Now we want to pick past such cases and want to ...
2
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1answer
49 views

Find Net Reclassification Improvement/Index metric using Python

I am working on a binary classification problem with ~5k records and class proportion of 33:67. I have 60 features/variables in my dataset and finally I have come to about 10 variables based on ...
2
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1answer
33 views

How to evaluate performance of a new feature in a model?

I am working on a binary classification where I have 4712 records with Label 1 being 1554 records and Label 0 being 3558 records. When I tried multiple models based on 6,7 and 8 features, I see the ...
1
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1answer
39 views

Why results of statsmodel logreg is different from scikit-learn logreg?

I am trying to do a binary classification. I have only 6 input variables and one output variables. Label 1 is 1554 records and Label 0 is 3558 records. As you can see below, the metrics that I get ...
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4answers
388 views

How to impute Missing values not the usual way?

I have a dataset of 4712 records working on binary classification. Label 1 is 33% and Label 0 is 67%. I can't drop records because my sample is already small. Because there are few columns which has ...
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0answers
22 views

SVM C vs gamma hyper tuning

While running SVC(), how we can hyper tune C vs gamma combination? I could see changes in C and gamma are impacting the accuracy differently. Also what i understand about C and gamma are : 1) C is ...
2
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2answers
45 views

Kernel selections in SVM

I want to understand the kernel selection rationale in SVM. Some basic things that i understand is if data is linear then we must go for linear kernel and if it is non-linear then others. But ...

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