> ## Documentation Index
> Fetch the complete documentation index at: https://doc.lucidworks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Insights Reports and Signal Data Requirements

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[localhost link]: http://localhost:3000/docs/4/fusion-ai/reference/report-requirements

[mintlify link]: https://doc.lucidworks.com/docs/4/fusion-ai/reference/report-requirements

[old doc.lw link]: https://doc.lucidworks.com/fusion/5.9/507

Although there are many fields that are relevant to [signals](/docs/4/fusion-ai/concepts/signals-and-aggregations/signals/overview), this topic describes which fields are **required** for each type of signal. Without these fields, reports and dashboards within [App Insights](/docs/4/fusion-ai/concepts/insights/overview) may not function as expected.

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## Signal Types

There are five types of signals:

* **Annotation.** Annotation signals are generated when a user bookmarks, likes, or comments on a document. Annotation signals are likewise generated when the user removes a bookmark, like, or comment.

  <Note>
    Annotation signals are generated by [App Studio](/docs/4/app-studio/overview). If you are not using App Studio, this type of signal is not relevant to your search application.
  </Note>

* **Click.** Click signals are generated when a user clicks on a page element that is being monitored by the search app. Click signals are sent from the search app to Fusion.

* **Login.** Login signals record information about specific users when they log in to an application. This includes a time stamp and various session details.

* **Request.** A request signal is generated by a front-end search app and captures the raw user query and other contextual information about a user and their journey through the search app.

* **Response.** Response signals are automatically generated by a query pipeline when the signals feature is enabled for a collection.

  <Tip>
    **Important**
    Because response signals and their fields are automatically generated, this topic does not cover what response signal fields are required.
  </Tip>

## Required Fields

### Signals

The following table describes which fields are required for annotation, click, login, and request signals.

<Note>
  Requests (or queries) can also require additional, available user data for the search.
</Note>

| Field             | Type            | Description                                                                                                                                                                                                                                                                                                                                                       | Example                                  | Required                                                 |
| ----------------- | --------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------- | -------------------------------------------------------- |
| `id`              | string          | Unique ID for the signal.                                                                                                                                                                                                                                                                                                                                         | `b0ee5307-6223-4150-ac5a-d0d8113aa480`   | ✅ Annotation <br />✅ Click <br />✅ Login <br />✅ Request |
| `doc_id`          | string          | Product ID or Item ID of the clicked result.                                                                                                                                                                                                                                                                                                                      | `NMDDV`                                  | ✘ Annotation <br />✅ Click <br />✘ Login <br />✘ Request |
| `date`            | timestamp       | Timestamp of when the signal was generated. This timestamp follows Unix epoch time formatting.                                                                                                                                                                                                                                                                    | `1518717749409`                          | ✅ Annotation <br />✅ Click <br />✅ Login <br />✅ Request |
| `user_id`         | string          | Unique ID for the user that generated the signal.                                                                                                                                                                                                                                                                                                                 | `admin`                                  | ✅ Annotation <br />✅ Click <br />✅ Login <br />✅ Request |
| `session`         | string          | Unique ID for the user’s browser session.                                                                                                                                                                                                                                                                                                                         | `ef4e00cd-91bb-45b4-be80-e81f9f9c5b27`   | ✅ Annotation <br />✅ Click <br />✅ Login <br />✅ Request |
| `host`            | string          | Host name of the server which is hosting the app that is generating the signal.                                                                                                                                                                                                                                                                                   | `x.y.z`                                  | ✅ Annotation <br />✅ Click <br />✅ Login <br />✅ Request |
| `ip_address`      | string          | IP address of the user that generated the signal.                                                                                                                                                                                                                                                                                                                 | `80.6.99.35`                             | ✅ Annotation <br />✅ Click <br />✅ Login <br />✅ Request |
| `app_id`          | string          | Name of the application that is generating the signal.                                                                                                                                                                                                                                                                                                            | `myApp`                                  | ✅ Annotation <br />✅ Click <br />✅ Login <br />✅ Request |
| `annotation_type` | string          | Type of the annotation signal, either "comment", "bookmark", or "like". Required fields for "comment": <br />• `comment`. The comment itself.<br />• `target`. The target that the comment refers to.<br /> Required fields for "bookmark": <br />• `title`. The bookmark title.<br />• `url`. The bookmark url.<br /> Required fields for "like": <br />• `-•` - | `bookmark`                               | ✅ Annotation <br />✘ Click <br />✘ Login <br />✘ Request |
| `query`           | string          | Terms of the query.                                                                                                                                                                                                                                                                                                                                               | `ipad`                                   | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request |
| `fusion_query_id` | string          | Unique ID for the `query` that is automatically generated from the Fusion response signal.                                                                                                                                                                                                                                                                        | `ABkaEA11`                               | ✘ Annotation <br />✅ Click <br />✘ Login <br />✘ Request |
| `filter`          | array of string | List of filters associated with the query, which in turn is associated with signal.                                                                                                                                                                                                                                                                               | `[“type/tablet”,”category/electronics”]` | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request |
| `ctype`           | string          | Type of click.                                                                                                                                                                                                                                                                                                                                                    | `result`                                 | ✘ Annotation <br />✅ Click <br />✘ Login <br />✘ Request |
| `res_pos`         | number          | Position of the clicked result within the list of results.                                                                                                                                                                                                                                                                                                        | `3`                                      | ✘ Annotation <br />✅ Click <br />✘ Login <br />✘ Request |
| `res_offset`      | number          | Result page.                                                                                                                                                                                                                                                                                                                                                      | `2`                                      | ✘ Annotation <br />✅ Click <br />✘ Login <br />✘ Request |
| `url`             | string          | URL of the page that the signal originated from.                                                                                                                                                                                                                                                                                                                  | `http://localhost:8080/products/search`  | ✘ Annotation <br />✘ Click <br />✘ Login <br />✅ Request |
| `path`            | string          | URL path of the page that the signal originated from.                                                                                                                                                                                                                                                                                                             | `/search`                                | ✘ Annotation <br />✘ Click <br />✘ Login <br />✅ Request |
| `page_title`      | string          | Title of the page that the signal originated from.                                                                                                                                                                                                                                                                                                                | `Search Page`                            | ✘ Annotation <br />✘ Click <br />✘ Login <br />✅ Request |

### Insights Reports

The table below describes which fields are required to generate the various reports within [App Insights](/docs/4/fusion-ai/concepts/insights/overview):

| Report                          | Signal Types Used                                                         | Required Field     | Type            | Description                                                                                            | Example                                   |
| ------------------------------- | ------------------------------------------------------------------------- | ------------------ | --------------- | ------------------------------------------------------------------------------------------------------ | ----------------------------------------- |
| Search queries                  | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request <br />✅ Response | `query`            | string          | Terms of the query.                                                                                    | `physics`                                 |
| Facets used                     | ✘ Annotation <br />✘ Click <br />✘ Login <br />✅ Request <br />✘ Response | `filter_field`     | array of string | List of filters associated with the query, which in turn is associated with signal.                    | `["categories_s"]`                        |
| Facet filters applied           | ✘ Annotation <br />✘ Click <br />✘ Login <br />✅ Request <br />✘ Response | `filter`           | array of string | List of **applied** filters associated with the query, which in turn is associated with signal.        | `["categories_s/math.OA"]`                |
| Application servers             | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request <br />✘ Response | `host`             | string          | Host name of the server that is hosting the app, which in turn is generating the signal.               | `lucidworks`                              |
| Response times                  | ✘ Annotation <br />✘ Click <br />✘ Login <br />✘ Request <br />✅ Response | `time`             | number          | Response time (in milliseconds).                                                                       | `17`                                      |
| URLs clicked                    | ✘ Annotation <br />✅ Click <br />✘ Login <br />✘ Request <br />✘ Response | `url`              | string          | URL of the page that was selected from the search results. This typically results from a click signal. | `http://arxiv.org/pdf/astro-ph/0611688v1` |
| Search pages                    | ✘ Annotation <br />✘ Click <br />✘ Login <br />✅ Request <br />✘ Response | `page_title`       | string          | Title of the page that the signal originated from.                                                     | `Search Preview`                          |
| Search platforms                | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request <br />✅ Response | `platform`         | string          | Name of the search platform.                                                                           | `fusion`                                  |
| Visitor countries               | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request <br />✘ Response | `geo_country_name` | string          | Originating country of the user.                                                                       | `United States`                           |
| Visitor cities                  | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request <br />✘ Response | `geo_city_name`    | string          | Originating city of the user.                                                                          | `San Francisco`                           |
| Browsers                        | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request <br />✘ Response | `browser_name`     | string          | Name of the browser that generated the signal.                                                         | `Firefox`                                 |
| Operating System                | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request <br />✘ Response | `os_name`          | string          | Name of the operating system used by the user.                                                         | `Ubuntu`                                  |
| Device types                    | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request <br />✘ Response | `os_device`        | string          | Type of the device used by the user.                                                                   | `Computer`                                |
| Websites people are coming from | ✘ Annotation <br />✅ Click <br />✘ Login <br />✘ Request <br />✘ Response | `referrer_domain`  | string          | URL of the page that the signal originated from.                                                       | `http://www.google.com`                   |
| Users                           | ✘ Annotation <br />✅ Click <br />✘ Login <br />✅ Request <br />✘ Response | `user_id`          | string          | Unique ID for the user that generated the signal.                                                      | `admin`                                   |
| User domains                    | N/A                                                                       | `domain`           | string          | Domain of the user that generated the signal.                                                          | `lucidworks.com`                          |
| Types of event                  | ✅ Annotation <br />✅ Click <br />✅ Login <br />✅ Request <br />✅ Response | `type`             | string          | Type of the signal.                                                                                    | `click`                                   |

Head Tail analysis uses different fields depending on signal type.
This report is populated by running a head tail job in Lucidworks Search. With a collection called `foo`, for example, run the `foo_head_tail` job.

| Signal Types Used | Required Field | Type   |   |
| ----------------- | -------------- | ------ | - |
| ✘ Annotation      |                |        |   |
| ✅ Click           | type           | string |   |
| ✅ Click           | query          | string |   |
| ✘ Login           |                |        |   |
| ✘ Request         |                |        |   |
| ✅ Response        | `count_i`      | number |   |

### Fusion jobs

The following tables specify required fields for specific Fusion jobs:

**Job:** `click_signal_aggr`

| Field             | Required |
| ----------------- | -------- |
| `user_id`         | no       |
| `query`           | yes      |
| `doc_id`          | yes      |
| `count_i`         | yes      |
| `fusion_query_id` | depends  |
| `type`            | yes      |
| `session_id`      | optional |
| `id`              | N/A      |
| `res_offset`      | optional |
| `res_pos`         | optional |
| `filters`         | optional |
| `type = response` | depends  |
| `dependency`      | N/A      |

**Job:** `phrase_extraction`

| Field             | Required |
| ----------------- | -------- |
| `user_id`         | no       |
| `query`           | yes      |
| `doc_id`          | no       |
| `count_i`         | yes      |
| `fusion_query_id` | no       |
| `type`            | yes      |
| `session_id`      | N/A      |
| `id`              | N/A      |
| `res_offset`      | N/A      |
| `res_pos`         | N/A      |
| `filters`         | N/A      |
| `type = response` | N/A      |
| `dependency`      | N/A      |

**Job:** `spell_correction`

| Field             | Required |
| ----------------- | -------- |
| `user_id`         | no       |
| `query`           | yes      |
| `doc_id`          | no       |
| `count_i`         | yes      |
| `fusion_query_id` | no       |
| `type`            | yes      |
| `session_id`      | N/A      |
| `id`              | N/A      |
| `res_offset`      | N/A      |
| `res_pos`         | N/A      |
| `filters`         | N/A      |
| `type = response` | N/A      |
| `dependency`      | N/A      |

**Job:** `synonym_detection`

| Field             | Required            |
| ----------------- | ------------------- |
| `user_id`         | no                  |
| `query`           | yes                 |
| `doc_id`          | yes                 |
| `count_i`         | yes                 |
| `fusion_query_id` | no                  |
| `type`            | yes                 |
| `session_id`      | N/A                 |
| `id`              | N/A                 |
| `res_offset`      | N/A                 |
| `res_pos`         | N/A                 |
| `filters`         | N/A                 |
| `type = response` | N/A                 |
| `dependency`      | phrase, misspelling |

**Job:** `head_tail`

| Field             | Required |
| ----------------- | -------- |
| `user_id`         | no       |
| `query`           | yes      |
| `doc_id`          | yes      |
| `count_i`         | yes      |
| `fusion_query_id` | no       |
| `type`            | yes      |
| `session_id`      | N/A      |
| `id`              | N/A      |
| `res_offset`      | N/A      |
| `res_pos`         | N/A      |
| `filters`         | N/A      |
| `type = response` | N/A      |
| `dependency`      | N/A      |

**Job:** `_user_item_prefs_agg`

| Field             | Required |
| ----------------- | -------- |
| `user_id`         | yes      |
| `query`           | no       |
| `doc_id`          | yes      |
| `count_i`         | yes      |
| `fusion_query_id` | no       |
| `type`            | yes      |
| `session_id`      | yes      |
| `id`              | yes      |
| `res_offset`      | yes      |
| `res_pos`         | yes      |
| `filters`         | yes      |
| `type = response` | yes      |
| `dependency`      | N/A      |
