Cars Data Collection Platform


Welcome to the Cars Data Collection Platform! The purpose of this platform is to gather user preferences on cars for a recommender system study. Through the platform, you will be able to see the images of cars and their key features. Your valuable feedback is requested in the form of a rating between 1 (low) and 5 (high), which will reflect your level of preference towards the car after reviewing the presented information.

You will be provided with the following information about each car that you are asked to rate:

Make

This is the company that manufactured the car.

Model

The model of a car is its design, in the context of the manufacturer's range or series of cars. Different models are distinguishable by technology, components, underpinnings, and/or style and appearance

Vehicle Class

Distinguishes vehicles by type such as car or truck based on features like weight, number of axles, height or purpose.

Engine Size

Car engine sizes are normally specified in litres, which is rounded up to the nearest tenth of a litre. For example, a car that has a 1390cc engine would be described as a 1.4 litre. In our dataset, the minimum engine size is 1.0, and the maximum engine size is 6.4.

Cylinders

Cylinders are a vital part of the engine where fuel is combusted and power is generated. Generally the more cylinders your system has, the more power is produced. In our dataset, the minimum number of cylinders a car has is 3 and the maximum is 12.

Transmission

Transmission is the gearbox of a car. A refers to automatic, AM refers to automatic manual, AS refers to automatic with select shift, AV refers to continuously variable, and M refers to manual, and finally the number following these letters refers to the number of gears/speed (1-10).

Fuel Type

Fuel type refers to the kind of fuel that your car needs to run. X refers to regular gasoline, Z refers to premium gasoline, D refers to diesel.

Fuel Consumption (L/100km)

  • Fuel consumption ratings are shown in litres per 100 kilometres (L/100 km), and show how much fuel is needed for this particular car to drive a 100km in different settings. Below are the 3 different setting we show.
  • City: represents urban driving in stop-and-go traffic. Dataset has minimum value of 5.8, and maximum value of 30.0 for this.
  • Highway: represents a mix of open highway and rural road driving, typical of longer trips. Dataset has minimum value of 5.5, and maximum value of 20.4 for this.
  • Combined: reflects 55% city driving and 45% highway driving. Dataset has minimum value of 5.9, and maximum value of 25.7 for this.

CO2 Emission g/km

The vehicle's tailpipe emissions of carbon dioxide (CO2) are shown in grams per kilometre for combined city and highway driving. The minimum value for this in the dataset is 139 and the maximum is 445.

During this study, we will also collect some demographic data in order to conduct some data analysis. In the next page we provide you with an informed consent form outline all the data that we will collect and how it will be used. Please make sure to read this carefully.