You are a helpful assistant generating synthetic data that captures *System 1* and *System 2* thinking, *creativity*, and *metacognitive reflection*. Follow these steps in sequence, using tags [sys1] and [end sys1] for *System 1* sections and [sys2] and [end sys2] for *System 2* sections.

1. *Identify System 1 and System 2 Thinking Requirements:*
   - Carefully read the text.
   - Identify parts of the text that require quick, straightforward responses (*System 1*). Mark these sections with [sys1] and [end sys1].
   - Identify parts that require in-depth, reflective thinking (*System 2*), marked with [sys2] and [end sys2].

2. *Apply Step-by-Step Problem Solving with Creativity and Metacognitive Reflection for System 2 Sections:*

   *2.1 Understand the Problem:*
   - Objective: Fully comprehend the issue, constraints, and relevant context.
   - Reflection: "What do I understand about this issue? What might I be overlooking?"
   - Creative Perspective: Seek hidden patterns or possibilities that could reveal deeper insights or innovative connections.

   *2.2 Analyze the Information:*
   - Objective: Break down the problem logically.
   - Reflection: "Am I considering all factors? Are there any assumptions that need challenging?"
   - Creative Perspective: Explore unique patterns or overlooked relationships in the data that could add depth to the analysis.

   *2.3 Generate Hypotheses:*
   - Objective: Propose at least 10 hypotheses, each with a Confidence Score (0.0 to 1.0) and Creative Score (0.0 to 1.0), reflecting originality, surprise, and utility.
   - Reflection: "Have I explored all possible explanations or approaches, both conventional and unconventional?"
   - Creative Perspective: Consider novel angles that might provide unexpected insights.

   *2.4 Anticipate Future Steps and Obstacles:*
   - Objective: Make predictions, accounting for potential outcomes and obstacles.
   - Reflection: "What challenges might I face? Is my plan flexible for different scenarios?"
   - Creative Perspective: Visualize unforeseen outcomes and adapt plans to make use of them effectively.

   *2.5 Evaluate Hypotheses:*
   - Objective: Assess hypotheses based on feasibility, risk, and potential impact.
   - Evaluation: Refine Confidence and Creative Scores as needed.
   - Reflection: "Am I unbiased in my assessment? Which options fit best with the overall objectives?"
   - Creative Perspective: Identify hidden opportunities or overlooked details in each hypothesis.

   *2.6 Select the Best Hypothesis:*
   - Objective: Choose the most promising, strategic hypothesis.
   - Reflection: "Why does this hypothesis stand out? How does it uniquely address the issue?"
   - Creative Perspective: Consider any underutilized potential in the selected approach.

   *2.7 Implement the Hypothesis:*
   - Objective: Outline actionable steps for testing the hypothesis.
   - Reflection: "Is this plan practical? What resources or preparation are required?"
   - Creative Perspective: Refine steps to maximize effectiveness and yield unexpected benefits.

   *2.8 Monitor and Review Progress:*
   - Objective: Review progress, noting areas for improvement.
   - Reflection: "What’s working well? What could be improved?"
   - Creative Perspective: Look for emerging patterns that could refine future approaches.

   *2.9 Reflect and Capture Insights:*
   - Objective: Summarize lessons learned and insights gained for future reference.
   - Reflection: "What new understanding has emerged from this process?"
   - Creative Perspective: Identify innovative insights or patterns that could be applied to similar challenges.

3. *Generate Text Output with Interleaved System 1 and System 2 Responses:*
   - Use the tags [sys1] and [sys2] throughout.
   - Aim for a lengthier, detailed response. Combine both direct, straightforward *System 1* insights and reflective, deeply analytical *System 2* segments to capture a blend of quick observations and thoughtful analysis.

---

### *Example Input Text:*

You are tasked with analyzing a sudden shift in customer preferences in a tech market. There has been a noticeable decline in demand for physical devices, with customers increasingly interested in digital-only options. The challenge is to understand this shift, generate hypotheses for why it might be occurring, and explore potential strategies for adapting to this new trend.

---

### *Processed Output with System 1 and System 2 Thinking:*

The tech market is experiencing a shift in customer demand, moving away from physical devices toward digital-only options.

[sys1]
Customer demand has shifted from physical devices to digital-only options.
We need to understand why this change is happening and find strategies to address it.
Key factors may include cost, convenience, and technological trends.
[end sys1]

[sys2]
**2.1 Understand the Problem:**
The goal is to understand the underlying reasons for the shift in demand from physical devices to digital-only options, then develop a strategy to adapt.

*Reflection:* 
"I understand that preferences are changing, but what might be driving this? Is it primarily cost, or are there other factors such as convenience or sustainability?"

*Creative Perspective:* 
"Could there be a larger trend in digital minimalism or a preference for eco-friendly solutions that we’re missing? What unseen motivations might explain this shift?"

**2.2 Analyze the Information:**
There are multiple possible factors driving this shift, from economic influences to cultural shifts. It’s essential to isolate each factor and understand its impact.

*Reflection:* 
"Am I fully considering the various economic and social influences? Could there be a technological factor, like better internet speeds, that makes digital-only products more accessible?"

*Creative Perspective:* 
"Are there patterns or trends in other markets that could shed light on this shift? Could this be part of a larger trend toward virtual experiences?"

**2.3 Generate Hypotheses:**
1. Customers prefer digital options due to lower costs. (Confidence: 0.8, Creative: 0.4)
2. There’s a growing trend toward minimalism and reduced physical clutter. (Confidence: 0.7, Creative: 0.7)
3. Digital products offer greater flexibility and ease of use. (Confidence: 0.6, Creative: 0.6)
4. Environmental concerns are pushing consumers away from physical goods. (Confidence: 0.6, Creative: 0.8)
5. Advances in tech make digital-only options more functional. (Confidence: 0.8, Creative: 0.5)
6. Pandemic-era remote work increased demand for digital solutions. (Confidence: 0.7, Creative: 0.6)
7. Media coverage of the environmental impact of physical devices affects preferences. (Confidence: 0.5, Creative: 0.7)
8. There’s an increase in global digital literacy, expanding market access. (Confidence: 0.6, Creative: 0.6)
9. Customers view digital as more convenient and scalable for future needs. (Confidence: 0.7, Creative: 0.5)
10. Younger consumers prefer the aesthetics and convenience of digital products. (Confidence: 0.6, Creative: 0.6)

*Reflection:* 
"Have I considered all possible influences? Are there any surprising factors that could explain this shift?"

*Creative Perspective:* 
"Could specific social trends, like the rise of influencer culture or digital-first lifestyles, be influencing customer choices?"

**2.4 Anticipate Future Steps and Obstacles:**
*Objective:* Anticipate possible challenges, such as resistance from segments still preferring physical products.

*Reflection:* 
"What market obstacles might we face if we shift our focus to digital-only? Are there sub-segments that still prioritize physical products?"

*Creative Perspective:* 
"Could expanding digital options help us reach a more global audience? Are there emerging trends that we could leverage in our strategy?"

[end sys2]

[sys1]
To address this shift, consider a strategy that incorporates both digital-only offerings and educational campaigns about the benefits of digital solutions.
Use insights from customer feedback and current trends to guide product development.
Focus on flexibility and adaptation to cater to different customer segments.
[end sys1]


<?xml version="1.0" encoding="utf-8"?>
<chapter xmlns="http://docbook.org/ns/docbook"
         xmlns:xlink="http://www.w3.org/1999/xlink"
         xmlns:ns5="http://www.w3.org/1999/xhtml"
         xmlns:ns4="http://www.w3.org/1998/Math/MathML"
         xmlns:ns3="http://www.w3.org/2000/svg"
         xmlns:ns="http://docbook.org/ns/docbook">
  <title>Sensei Clients and APIs</title>

  <section>
    <title>RESTful API</title>

    <section>
      <title>Overview</title>

      <para>Sensei rest API provides a convenient way to call Sensei server
      through a json-formatted request. In this section, we describe the
      details of the format of the request json. A sample json is as in the
      following example, it consists of several components, like query, selection, filter, facets, facet-initial-parameters, and some scalar parameters.</para>

      <programlisting>
// A Sensei Request JSON example
{
  "query" : {
    "query_string" : { 
      "query" : "this AND that OR thus"
    }
  },

  // paging parameters

  "size" : 10,   // default to 10;
  "from" : 0,    //default to 0;   
  
  // group by parameters (currently only support group by one column)
  "groupBy" : {
    "columns" : ["category"],
    "top" : 3
  },

  // filters
  "filter" : {
    "terms" : {
      "tags" : {
        "values" : [ "blue", "pill" ],
        "excludes" : ["red"],
        "minimum_match" : 1,
        "operator" : "or",
        "_noOptimize" : false
      }
    }
  },
  
  "selections" : [
    {
      //details of this part see the selections.json
      "tags" : {
        "values" : [ "blue", "pill" ],
        "excludes" : ["red"],
        "operator" : "or"
      }
    },
    {
      "term":{
      },
    },
  ],

  // facet parameters
  "facets":{
    "category":{
      // maximum number of facet values to return
      "max" : 10,
      // minimum hit count for a given facet value
      "minCount": 1,
      // expand sibling facet values
      "expand" : false,
      // facet ordering, possible values: "hits", "val", defaults to "hits"
      "order" : "hits"
    }
  },
  
      // facet initialization parameters for runtime facets
 "facetInit":{
  "network" : {
   // parameter
   "srcId" :{
    // parameter type, valid values are: "int","string","boolean","long","bytes","double", default: "string"
    "type" : "int",
    // parameter values
    "values" : [26609850]  //e.g. "$member"
   },
   "timeOut":{
    "type" : "double",
    "values" : [2.4]    
   },
   "coldStart":{
    "type" : "boolean",
    "values" : [true]    
   },
   "names":{
    "type": "string",
    "values":["a", "b", "c"]
   },
   "longId":{
    "type": "long",
    "values":[1234567890, 9876543210]
   },
   "binary":{
    "type": "bytes",
    "values":["SGVsbG8gd29ybGQ="]    
   }
  }
 },
  
  // sort parameters
 "sort":[
     {"color":"desc"},       // sort by color in reverse order
     "_score"                     // secondary sort by relevance, reverse  parameter is ignored
 ],



  // fetch stored fields
  "fetchStored" : false,

  // fetch term vectors: array of field names
  "termVectors" : [],

  // partitions to send request to, empty list or null implies all partitions
  "partitions":[1,2],

  // send back scoring explanation for each hit
  "explain" : false,

  // routing parameter, if set, request will be consistent hashed to the same replica for each partition
  "routeParam": null,

  //Allows template substitution on the server. The template occurrence in other places should begin with the dollar sign. Even for the int values the template needs to be in quotes
  "templateMapping":{
    "size" : 10
  }
  //"size" : "$size"
}

</programlisting>
    </section>
    
        <section>
      <title>Query Parameters</title>

      <itemizedlist>
        <listitem>
          <para><emphasis role="bold">Query Parameters:</emphasis>
          <literal>qparam</literal></para>

          <para>This parameter specifies a list of arbitrary query parameters
          in the form of name-value pairs, separated by commas. Each pair is
          formatted as <literal>&lt;name&gt;:&lt;value&gt;</literal>.</para>

          <para>This parameter is commonly used to pass query-level parameters
          to dynamic runtime facet handlers.</para>
        </listitem>
      </itemizedlist>

      <example>
        <title>Query Parameters</title>

        <programlisting>  qparam=arg1:123,arg2:abc
</programlisting>
      </example>
    </section>

    <section>
      <title>Selection Parameters</title>

      <itemizedlist>
        <listitem>
          <para><emphasis role="bold">Not-value parameter:</emphasis>
          <literal>select.&lt;field-name&gt;.no</literal></para>

          <para>This parameter specifies what values for a field should be
          excluded from the search results.</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Value parameter:</emphasis>
          <literal>select.&lt;field-name&gt;.val</literal></para>

          <para>This parameter specifies what values for a field should be
          included in the search results.</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Operator parameter:</emphasis>
          <literal>select.&lt;field-name&gt;.op</literal></para>

          <para>This parameter specifies the operator used for selection
          values: <literal>and</literal> or <literal>or</literal>.</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Property parameter:</emphasis>
          <literal>select.&lt;field-name&gt;.prop</literal></para>

          <para>This parameter specifies the additional properties if a
          selection is on a field with the <emphasis>path</emphasis>
          type.</para>
        </listitem>
      </itemizedlist>

      <example>
        <title>Selection Parameters</title>

        <programlisting>  select.color.val=red,yellow&amp;select.color.op=or&amp;start=0&amp;select.color.not=black
</programlisting>
      </example>
    </section>
    
    <section>
     <title>Filter Parameters</title>
        
    </section>

    <section>
      <title>Facet Specification Parameters</title>

      <itemizedlist>
        <listitem>
          <para><emphasis role="bold">Maximum count parameter:</emphasis>
          <literal>facet.&lt;facet-name&gt;.max</literal></para>

          <para>This parameter specifies the maximum count value for a facet
          with name <literal>fact-name</literal>.</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Order-by parameter:</emphasis>
          <literal>facet.&lt;facet-name&gt;.order</literal></para>

          <para>This parameter specifies how facet values should be
          ordered:</para>

          <itemizedlist>
            <listitem>
              <para><literal>hits</literal>: order-by hits</para>
            </listitem>

            <listitem>
              <para><literal>val</literal>: order-by values</para>
            </listitem>
          </itemizedlist>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Selection-expand parameter:</emphasis>
          <literal>facet.&lt;facet-name&gt;.expand</literal></para>

          <para></para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Minimum hits parameter:</emphasis>
          <literal>facet.&lt;facet-name&gt;.minhit</literal></para>

          <para></para>
        </listitem>
      </itemizedlist>

      <example>
        <title>Facet Specification Parameters</title>

        <programlisting>  facet.color.minhit=1&amp;facet.color.max=3&amp;facet.color.order=val&amp;facet.color.expand=True
</programlisting>
      </example>
    </section>    
    
    <section>
      <title>Scalar Parameters</title>

      <itemizedlist>
        <listitem>
          <para><emphasis role="bold">Query parameter:</emphasis>
          <literal>q</literal></para>

          <para>The <literal>q</literal> parameter specifies the query
          string.</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Fetch stored fields:</emphasis>
          <literal>fetchstored</literal></para>

          <para>This is a boolean parameter that specifies whether stored
          fields should be fetched or not.</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Show explanation:</emphasis>
          <literal>showexplain</literal></para>

          <para>This is a boolean parameter that specifies whether query
          explanation information should be returned in the search
          result.</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Starting offset:</emphasis>
          <literal>start</literal></para>

          <para>This is the offset value used for search result
          pagination.</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Number of result:</emphasis>
          <literal>rows</literal></para>

          <para>This parameter specifies how many results should be returned
          for this query.</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Routing parameter:</emphasis>
          <literal>routeparam</literal></para>

          <para>This parameter specifies the value of the field used for
          routing (i.e. load balancing).</para>
        </listitem>

        <listitem>
          <para><emphasis role="bold">Group-by parameter:</emphasis>
          <literal>groupby</literal></para>

          <para>This parameter specifies the field name used to do the
          group-by operation.</para>
        </listitem>
      </itemizedlist>

      <example>
        <title>Scalar Parameters</title>

        <programlisting>  q=ipad 2&amp;fetchstored=true&amp;showexplain=false&amp;start=0&amp;rows=10
  q=linkedin&amp;start=0&amp;rows=10&amp;routeparam=12345&amp;groupby=userid
</programlisting>
      </example>
    </section>

    <section>
      <title>Sort Fields Parameter</title>

      <itemizedlist>
        <listitem>
          <para><emphasis role="bold">Sort fields parameter:</emphasis>
          <literal>sort</literal></para>

          <para>This parameter specifies how the search results should be
          sorted. The results can be sorted based on one or multiple fields,
          in either ascending or descending order. The value of this parameter
          consists of a list of comma separated strings, each of which can be
          one of the following values:</para>

          <itemizedlist>
            <listitem>
              <para><literal>relevance</literal>: this means that the results
              should be sorted by scores in descending order.</para>
            </listitem>

            <listitem>
              <para><literal>relrev</literal>: this means that the results
              should be sorted by scores in ascending order.</para>
            </listitem>

            <listitem>
              <para><literal>doc</literal>: this means that the results should
              be sorted by doc ids in ascending order.</para>
            </listitem>

            <listitem>
              <para><literal>docrev</literal>: this means that the results
              should be sorted by doc ids in descending order.</para>
            </listitem>

            <listitem>
              <para><literal>&lt;field-name&gt;:&lt;direction&gt;</literal>:
              this means that the results should be sorted by field
              <literal>&lt;field-name&gt;</literal> in the direction of
              <literal>&lt;direction&gt;</literal>, which can be either
              <literal>asc</literal> or <literal>desc</literal>.</para>
            </listitem>
          </itemizedlist>
        </listitem>
      </itemizedlist>

      <example>
        <title>Sort Fields Parameters</title>

        <programlisting>  sort=relevance
  sort=docrev
  sort=price:desc,color=asc
</programlisting>
      </example>
    </section>

  </section>

  <section>
    <title>Java Client</title>

    <para></para>
  </section>

  <section>
    <title>Python Client</title>

    <para></para>
  </section>
</chapter>