# Pool parameters

Parameter

Overview

Found in the block

Pool name

The pool name shown only to you (as a requester) on the project page.

General information

Public description

Will be displayed instead of the project description in the task list for Tolokers and linked training.

General information

Private comment

If necessary, you can add a private project description that will only be available to you.

General information

Price per task suite, $Payment per task suite in US dollars. For cents, use the dot (".") as a separator. If the Pool type is General tasks, the minimum price per task suite is$0.005. For other pool types, you can set the price to zero. To learn more about price management, go to Setting up pricing.

Price

Overlap

The number of Tolokers who should complete each task in the pool.

Configure this parameter if you need several people to complete your task. Overlap is necessary in tasks for collecting photo datasets, recording audio, or conducting surveys. In other types of tasks, it can improve the quality of results.

To save money, you can set up dynamic overlap (also known as incremental relabeling or IRL).

Price

My tasks may contain shocking or pornographic content

Whether the tasks have shocking or pornographic content. Tasks with such content are only given to Tolokers who agree to complete these types of tasks.

If you aren't sure whether the tasks have shocking and pornographic content, enable this option.

Payment per task suite in US dollars. For cents, use the dot (".") as a separator. If the Pool type is General tasks, the minimum price per task suite is \$0.005. For other pool types, you can set the price to zero. To learn more about price management, go to Setting up pricing.

Audience

Filters

By setting the filters, you choose Tolokers that meet your requirements to complete your task. There are filter sets, filters by various criteria, and filters by skills that you can create yourself.

If you are working with Russian-language texts in the task, you don't need to display the project for non-Russian speakers. You can set a filter for the Russian language. Similarly, you can filter Tolokers by place of residence in a particular country or city, and so on. Learn more

If you give training tasks to Tolokers, you can add a skill to the pool to choose Tolokers who already completed training. Learn more about skills

Audience

Speed/quality balance

A setting for choosing Tolokers for your tasks. If you want to get responses very quickly, the quality may be doubtful. If you want very high quality, be prepared to wait longer. Find a balance that meets your needs. Learn more.

Audience

Non-automatic acceptance

Turn on this option to review the completed tasks manually.

Set the time period when you can check the tasks and reject them if the results are poor.

To learn more about non-automatic acceptance, go to Reviewing assignments.

Quality control

Training

This field is only available if you have training pools in the project.

Training pool that will be linked to the main one.

Quality control

Level required, %

This field is only available if you have filled in the Training field.

Percentage of correct responses in training tasks (from 0 to 100) required to be admitted to the pool tasks. The calculation is based on the first response the Toloker gave in each task.

The minimum required level that you can set is 5. Tolokers who complete training with apercentage below this level won't have access to tasks.

Quality control

Review period in days

The number of days for reviewing and accepting tasks (max: 21). The Toloker will see the deadline for checking the tasks:

• In the task information on the Toloka main page.
• In the history of completed tasks.

Quality control

Dynamic pricing

This parameter allows you to vary the task price depending on the Toloker's skill level. Learn more

Dynamic pricing and overlap

Dynamic overlap

You can use this parameter if you specify fixed values for the input data fields. It lets you save your budget and avoid setting fixed overlap for all pool tasks.

You set the range, the service analyzes the responses, their consistency, the level of Tolokers' skills and, if necessary, increases the overlap within the range you specified.

Dynamic pricing and overlap

Priority

Number from 0 to 100. Allows you to rank a pool within a project. First, a Toloker is assigned tasks from a pool with higher priority.

Time per task suite, sec

The time allowed for completing a task suite, in seconds. Uncompleted tasks are redistributed to other Tolokers.

We recommend spending no more than 60 seconds per task (including the time for page loading and sending responses).

If you set the interval too long, the tasks will stay open for a long time. If it is too short, the tasks won't be completed and paid for.

Keep pool open after completion, sec

The interval during which the pool will remain open from the moment all tasks are completed. Minimum — 0, maximum — 259200 seconds (three days).

For example, you can use this parameter if you need an open pool where you regularly upload new tasks.

Pool closing date

The date the pool closes. The pool closes automatically on this date, even if the tasks aren't marked up.

Pool type

Specify the pool type:

• General tasks: The main pool that contains your regular tasks.

• Exam: A pool that contains only control tasks.

• Training: A main pool that consists only of training tasks and can have zero cost. Use it to train Tolokers before performing real tasks if the training pool doesn't work well for your project.

• Retry: A pool that helps Tolokers who make mistakes improve their skills and get a second chance to complete tasks.

• Other: If none of the previous options fit.

Note

If the price per task suite is zero, you must select the pool type.

Option disabled (default value)

The uploaded tasks are grouped in pages and given to Tolokers in random order. Within the page, the task order is always random.

Example

If you specified 2 tasks per page when uploading the TSV file with image links to the pool, the system can generate them as follows:

 Tasks in the file Page 1 Page 2 Page 3 Image 1 Image 2 Image 6 Image 4 Image 2 Image 5 Image 1 Image 3 Image 3 Image 4 Image 5 Image 6

Option enabled

Tasks will be grouped on pages in the order they are listed in the task file.

Example

If you specified 2 tasks per page when uploading the file with image links to the pool, you're equally likely to get pages where the first link goes first and the second goes second, and the other way around:

 Tasks in the file Page 1 Page 2 Page 3 Image 1 Image 1 Image 3 Image 5 Image 2 Image 2 Image 4 Image 6 Image 3 or or or Image 4 Image 2 Image 4 Image 6 Image 5 Image 1 Image 3 Image 5 Image 6

If the pool has an overlap, the next task is distributed only when the previous task is completed by the necessary number of Tolokers.

Use this parameter to:

• Speed up collection of responses for majority vote check.

• Issue tasks by priority.

Put important tasks in the beginning of the file. They will be completed faster and with the necessary overlap.