Regression model to predict resolve time gives very poor result

[adeb]

Anyone aware of which regression algorithms are used to predict the resolve time of an incident ?

[Lener Pacania1]

 Hi Adeb, currently XGboost is used as the regression algo.  Have you gone through some of the tuning recommendations for regression?

Also did you assess the data quality of your training set?

-Lener

[adeb]

So we are using short desc to predict the resolve time of an incident.

We used TFIDF to vectorize the text after doing preprocessing but that does not help.

Target -Resolve time (in sec) ranges from approx 20 mins to 10 days.

I also tried with building the regression model in python using same data .

Performed standard preprocessing steps to cleanse, used tfidf vect and used regression algorithms like linear ,dtree,xgboost but accuracy is only around 28-30%.

Is there any series for regression to estimate resolve time similar to  https://www.youtube.com/watch?v=sKIoumkelnI