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Before you start:

If you are new to PosNeg tracking we recommend reading our introduction which can be found here https://docs.sajari.com/user-guide/analytics/posneg-tracking/ the Event tracking introduction.

Advanced Tracking

PosNeg tracking provides flexible tracking tokens which can be used in a variety of use-cases to provide both useful analytics and to feed searchSearch.io’s machine learning algorithms data about the performance of search results. 

Generating PosNeg tokens

PosNeg tokens are generated by adding a tracking object when Querying a collection https://docsdev.sajarisearch.comio/docs/api/#operation/QueryCollection . Within the tracking object type must be set to “POS_NEG", query_id must be assigned a unique identifier (more on this later), and field must be passed the field name which contains the unique identifier you have assigned to each record i.e. a product ID may be appropriate for ecommerce scenarios.

...

{
    "results": [
        {
            "record": {
                "productId": "5577783",
                "name": "Samsung LED TV"
            },
            "token": {
                "pos_neg": {
                    "pos": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJwdXJwb3NlIjoicG9zIiwiZGVzdGluYXRpb24iOiIiLCJ2YWxzIjp7ImNvbGxlY3Rpb24iOlsiYmVzdGJ1eSJdLCJjb21wYW55IjpbIjE1OTQxNTM3MTE5MDE3MjQyMjAiXSwiZmllbGQiOlsiaWQiXSwicHJvamVjdCI6WyIxNTk0MTUzNzExOTAxNzI0MjIwIl0sInEuaWQiOlsiNDIxNjY5MTU5OSJdLCJxLnNsIjpbIjEiXSwicS51aWQiOlsiNDIxNjY5MTU5OTEiXSwidmFsdWUiOlsiNTU3Nzc4MyJdfX0.5KKsQaXG1b6LaDwkaTh9tpSAJONFY3nbSj4ZJYJM1IM",
                    "neg": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJwdXJwb3NlIjoibmVnIiwiZGVzdGluYXRpb24iOiIiLCJ2YWxzIjp7ImNvbGxlY3Rpb24iOlsiYmVzdGJ1eSJdLCJjb21wYW55IjpbIjE1OTQxNTM3MTE5MDE3MjQyMjAiXSwiZmllbGQiOlsiaWQiXSwicHJvamVjdCI6WyIxNTk0MTUzNzExOTAxNzI0MjIwIl0sInEuaWQiOlsiNDIxNjY5MTU5OSJdLCJxLnNsIjpbIjEiXSwicS51aWQiOlsiNDIxNjY5MTU5OTEiXSwidmFsdWUiOlsiNTU3Nzc4MyJdfX0.QraRedkZhcEAFwrAA90Rd63DCD3eKPtbL1JrKnMkbkY"
                }
            }
        },
        {
            "record": {
                "productId": "5042100",
                "name": "Samsung - LED - 2160p - Smart - 4K
            },
            "token": {
                "pos_neg": {
                    "pos": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJwdXJwb3NlIjoicG9zIiwiZGVzdGluYXRpb24iOiIiLCJ2YWxzIjp7ImNvbGxlY3Rpb24iOlsiYmVzdGJ1eSJdLCJjb21wYW55IjpbIjE1OTQxNTM3MTE5MDE3MjQyMjAiXSwiZmllbGQiOlsiaWQiXSwicHJvamVjdCI6WyIxNTk0MTUzNzExOTAxNzI0MjIwIl0sInEuaWQiOlsiNDIxNjY5MTU5OSJdLCJxLnNsIjpbIjIiXSwicS51aWQiOlsiNDIxNjY5MTU5OTEiXSwidmFsdWUiOlsiNTA0MjEwMCJdfX0.JkAbTpQ0XiDbHxanLQOLv5niMwu6QT8L1BmbAromMjs",
                    "neg": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJwdXJwb3NlIjoibmVnIiwiZGVzdGluYXRpb24iOiIiLCJ2YWxzIjp7ImNvbGxlY3Rpb24iOlsiYmVzdGJ1eSJdLCJjb21wYW55IjpbIjE1OTQxNTM3MTE5MDE3MjQyMjAiXSwiZmllbGQiOlsiaWQiXSwicHJvamVjdCI6WyIxNTk0MTUzNzExOTAxNzI0MjIwIl0sInEuaWQiOlsiNDIxNjY5MTU5OSJdLCJxLnNsIjpbIjIiXSwicS51aWQiOlsiNDIxNjY5MTU5OTEiXSwidmFsdWUiOlsiNTA0MjEwMCJdfX0.qhyTVZOWzeWzTmolyaMxsmMz1yHQySeoQc-S9PIfEBc"
                }
            }
        }
    ]
}

Search sessions:

A search from an end user perspective is often more than the action of typing text into a search bar. It can become a sequence of actions where the user reaches a refined set of search results. Actions such as refining by a product size, price range, stock availability or tweaking the search text. These combined interactions are what we refer to as a search session. 

PosNeg tracking requires customers who are using our API to define and manage the state of their own search sessions. If you would prefer session handling to be managed for you then take a look at our UI librarieshttps://docs.sajari.com/developer-guide/api/api-clients/ .

Why is it important to define the search session?

Defining a search session provides a fuller picture of search performance and enriches the quality of the data used for machine learning and business analysis.

How to manage sessions:

New sessions are defined by simply passing a new unique identifier to our query_id parameter when using the the Query collection call i.e.query_id: "4216691599". 

...

Session and sequence information is automatically encoded into the PosNeg tokens

Session Example:

A user starts a new search session by typing “Samsung TV” into the search bar. Below is an example the Query collection call where query_id must be passed a unique ID and sequence set to 0

...

{
  "variables": {
      "q" : "tv cabinet"
  },
  "tracking": {
    "type": "POS_NEG",
    "query_id": "5643627563",
    "sequence": 0,
    "field": "id"
  }
}

Storing and sending tokens back

PosNeg tokens can be used more than once. This means that a single token can be used to send positive signals as a user moves through a funnel. Additionally, tokens can be stored for long durations in order to attribute search queries with results even over long session times. For example, if a user performs a search and finds a good result but doesn't actually purchase the product until much later.

...

When an event occurs like a user clicking a search result the token associated with the record for that specific search result should be sent using the API SendEvent https://docs.sajari.com/api/#operation/SendEvent method.

An appropriate name such as ‘click’ should be assigned to the name field. metadata and weight do not need to be defined and are not in scope for this guide.

...

What do I do with neg tokens?

You only need to to return neg tokens where the user has taken a specific negative action e.g. down voting an item, marking a result as unhelpful etc.

Sajari Search.io automatically handles negatives in scenarios such as a user not interacting with any search results, or passing over higher ranked results to click on a lower ranked result.

Leveraging machine learning

Now you’ve implemented PosNeg tracking hop over to our guide on Dynamic Boosting so you can start leveraging machine learning! https://docs.sajarisearch.com/user-guide/relevance-tuningio/documentation/fundamentals/search-settings/dynamic-boosting/.