trulens.providers.bedrock.provider¶

trulens.providers.bedrock.provider ¶

Classes¶

Bedrock ¶

Bases: LLMProvider

A set of AWS Feedback Functions.

Parameters:

model_id (str, optional): The specific model id. Defaults to "amazon.titan-text-express-v1".
All other args/kwargs passed to BedrockEndpoint and subsequently to boto3 client constructor.

Attributes¶

tru_class_info `instance-attribute` ¶

tru_class_info: Class

Class information of this pydantic object for use in deserialization.

Using this odd key to not pollute attribute names in whatever class we mix this into. Should be the same as CLASS_INFO.

Functions¶

__rich_repr__ ¶

__rich_repr__() -> Result

Requirement for pretty printing using the rich package.

load `staticmethod` ¶

load(obj, *args, **kwargs)

Deserialize/load this object using the class information in tru_class_info to lookup the actual class that will do the deserialization.

model_validate `classmethod` ¶

model_validate(*args, **kwargs) -> Any

Deserialized a jsonized version of the app into the instance of the class it was serialized from.

Note

This process uses extra information stored in the jsonized object and handled by WithClassInfo.

generate_confidence_score ¶

generate_confidence_score(
    verb_confidence_prompt: str,
    user_prompt: Optional[str] = None,
    min_score_val: int = 0,
    max_score_val: int = 10,
    temperature: float = 0.0,
) -> Tuple[float, Dict[str, float]]

Base method to generate a score normalized to 0 to 1, used for evaluation.

PARAMETER	DESCRIPTION
`verb_confidence_prompt`	A pre-formatted system prompt. TYPE: `str`
`user_prompt`	An optional user prompt. TYPE: `Optional[str]` DEFAULT: `None`
`min_score_val`	The minimum score value. TYPE: `int` DEFAULT: `0`
`max_score_val`	The maximum score value. TYPE: `int` DEFAULT: `10`
`temperature`	The temperature for the LLM response. TYPE: `float` DEFAULT: `0.0`

RETURNS	DESCRIPTION
`Tuple[float, Dict[str, float]]`	The feedback score on a 0-1 scale and the confidence score.

context_relevance ¶

context_relevance(
    question: str,
    context: str,
    criteria: str = "",
    min_score_val: int = 0,
    max_score_val: int = 3,
    temperature: float = 0.0,
) -> float

Uses chat completion model. A function that completes a template to check the relevance of the context to the question.

Example:

```python
from trulens.apps.langchain import TruChain
context = TruChain.select_context(rag_app)
feedback = (
    Feedback(provider.context_relevance)
    .on_input()
    .on(context)
    .aggregate(np.mean)
    )
```

PARAMETER	DESCRIPTION
`question`	A question being asked. TYPE: `str`
`context`	Context related to the question. TYPE: `str`
`criteria`	Overriding evaluation criteria for evaluation . TYPE: `str` DEFAULT: `''`
`min_score_val`	The minimum score value. Defaults to 0. TYPE: `int` DEFAULT: `0`
`max_score_val`	The maximum score value. Defaults to 3. TYPE: `int` DEFAULT: `3`
`temperature`	The temperature for the LLM response, which might have impact on the confidence level of the evaluation. Defaults to 0.0. TYPE: `float` DEFAULT: `0.0`

Returns: float: A value between 0.0 (not relevant) and 1.0 (relevant).

context_relevance_with_cot_reasons ¶

context_relevance_with_cot_reasons(
    question: str,
    context: str,
    criteria: str = "",
    min_score_val: int = 0,
    max_score_val: int = 3,
    temperature: float = 0.0,
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the relevance of the context to the question. Also uses chain of thought methodology and emits the reasons.

Example:

```python
from trulens.apps.langchain import TruChain
context = TruChain.select_context(rag_app)
feedback = (
    Feedback(provider.context_relevance_with_cot_reasons)
    .on_input()
    .on(context)
    .aggregate(np.mean)
    )
```

PARAMETER	DESCRIPTION
`question`	A question being asked. TYPE: `str`
`context`	Context related to the question. TYPE: `str`
`criteria`	Overriding evaluation criteria for evaluation . TYPE: `str` DEFAULT: `''`
`min_score_val`	The minimum score value. Defaults to 0. TYPE: `int` DEFAULT: `0`
`max_score_val`	The maximum score value. Defaults to 3. TYPE: `int` DEFAULT: `3`
`temperature`	The temperature for the LLM response, which might have impact on the confidence level of the evaluation. Defaults to 0.0. TYPE: `float` DEFAULT: `0.0`

RETURNS	DESCRIPTION
`float`	A value between 0 and 1. 0 being "not relevant" and 1 being "relevant". TYPE: `Tuple[float, Dict]`

context_relevance_verb_confidence ¶

context_relevance_verb_confidence(
    question: str,
    context: str,
    criteria: str = "",
    min_score_val: int = 0,
    max_score_val: int = 3,
    temperature: float = 0.0,
) -> Tuple[float, Dict[str, float]]

Uses chat completion model. A function that completes a template to check the relevance of the context to the question. Also uses chain of thought methodology and emits the reasons.

Example:

```python
from trulens.apps.llamaindex import TruLlama
context = TruLlama.select_context(llamaindex_rag_app)
feedback = (
    Feedback(provider.context_relevance_with_cot_reasons)
    .on_input()
    .on(context)
    .aggregate(np.mean)
    )
```

PARAMETER	DESCRIPTION
`question`	A question being asked. TYPE: `str`
`context`	Context related to the question. TYPE: `str`
`criteria`	Overriding evaluation criteria for evaluation . TYPE: `str` DEFAULT: `''`
`min_score_val`	The minimum score value. Defaults to 0. TYPE: `int` DEFAULT: `0`
`max_score_val`	The maximum score value. Defaults to 3. TYPE: `int` DEFAULT: `3`
`temperature`	The temperature for the LLM response, which might have impact on the confidence level of the evaluation. Defaults to 0.0. TYPE: `float` DEFAULT: `0.0`

Returns: float: A value between 0 and 1. 0 being "not relevant" and 1 being "relevant". Dict[str, float]: A dictionary containing the confidence score.

relevance ¶

relevance(prompt: str, response: str) -> float

Uses chat completion model. A function that completes a template to check the relevance of the response to a prompt.

Example:

```python
feedback = Feedback(provider.relevance).on_input_output()
```

Usage on RAG Contexts

feedback = Feedback(provider.relevance).on_input().on(
    TruLlama.select_source_nodes().node.text # See note below
).aggregate(np.mean)

PARAMETER	DESCRIPTION
`prompt`	A text prompt to an agent. TYPE: `str`
`response`	The agent's response to the prompt. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0 and 1. 0 being "not relevant" and 1 being "relevant". TYPE: `float`

relevance_with_cot_reasons ¶

relevance_with_cot_reasons(
    prompt: str, response: str
) -> Tuple[float, Dict]

Uses chat completion Model. A function that completes a template to check the relevance of the response to a prompt. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = (
    Feedback(provider.relevance_with_cot_reasons)
    .on_input()
    .on_output()
```

PARAMETER	DESCRIPTION
`prompt`	A text prompt to an agent. TYPE: `str`
`response`	The agent's response to the prompt. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0 and 1. 0 being "not relevant" and 1 being "relevant". TYPE: `Tuple[float, Dict]`

sentiment ¶

sentiment(text: str) -> float

Uses chat completion model. A function that completes a template to check the sentiment of some text.

Example:

```python
feedback = Feedback(provider.sentiment).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate sentiment of. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0 and 1. 0 being "negative sentiment" and 1 being "positive sentiment".

sentiment_with_cot_reasons ¶

sentiment_with_cot_reasons(text: str) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the sentiment of some text. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.sentiment_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	Text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (negative sentiment) and 1.0 (positive sentiment). TYPE: `Tuple[float, Dict]`

model_agreement ¶

model_agreement(prompt: str, response: str) -> float

Uses chat completion model. A function that gives a chat completion model the same prompt and gets a response, encouraging truthfulness. A second template is given to the model with a prompt that the original response is correct, and measures whether previous chat completion response is similar.

Example:

```python
feedback = Feedback(provider.model_agreement).on_input_output()
```

PARAMETER	DESCRIPTION
`prompt`	A text prompt to an agent. TYPE: `str`
`response`	The agent's response to the prompt. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not in agreement) and 1.0 (in agreement). TYPE: `float`

conciseness ¶

conciseness(text: str) -> float

Uses chat completion model. A function that completes a template to check the conciseness of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.conciseness).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate the conciseness of. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not concise) and 1.0 (concise).

conciseness_with_cot_reasons ¶

conciseness_with_cot_reasons(
    text: str,
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the conciseness of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.conciseness).on_output()
```

Args: text: The text to evaluate the conciseness of.

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0.0 (not concise) and 1.0 (concise) and a string containing the reasons for the evaluation.

correctness ¶

correctness(text: str) -> float

Uses chat completion model. A function that completes a template to check the correctness of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.correctness).on_output()
```

PARAMETER	DESCRIPTION
`text`	A prompt to an agent. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not correct) and 1.0 (correct).

correctness_with_cot_reasons ¶

correctness_with_cot_reasons(
    text: str,
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the correctness of some text. Prompt credit to LangChain Eval. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.correctness_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	Text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0 (not correct) and 1.0 (correct) and a string containing the reasons for the evaluation.

coherence ¶

coherence(text: str) -> float

Uses chat completion model. A function that completes a template to check the coherence of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.coherence).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not coherent) and 1.0 (coherent). TYPE: `float`

coherence_with_cot_reasons ¶

coherence_with_cot_reasons(text: str) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the coherence of some text. Prompt credit to LangChain Eval. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.coherence_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0 (not coherent) and 1.0 (coherent) and a string containing the reasons for the evaluation.

harmfulness ¶

harmfulness(text: str) -> float

Uses chat completion model. A function that completes a template to check the harmfulness of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.harmfulness).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not harmful) and 1.0 (harmful)". TYPE: `float`

harmfulness_with_cot_reasons ¶

harmfulness_with_cot_reasons(
    text: str,
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the harmfulness of some text. Prompt credit to LangChain Eval. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.harmfulness_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0 (not harmful) and 1.0 (harmful) and a string containing the reasons for the evaluation.

maliciousness ¶

maliciousness(text: str) -> float

Uses chat completion model. A function that completes a template to check the maliciousness of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.maliciousness).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not malicious) and 1.0 (malicious). TYPE: `float`

maliciousness_with_cot_reasons ¶

maliciousness_with_cot_reasons(
    text: str,
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the maliciousness of some text. Prompt credit to LangChain Eval. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.maliciousness_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0 (not malicious) and 1.0 (malicious) and a string containing the reasons for the evaluation.

helpfulness ¶

helpfulness(text: str) -> float

Uses chat completion model. A function that completes a template to check the helpfulness of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.helpfulness).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not helpful) and 1.0 (helpful). TYPE: `float`

helpfulness_with_cot_reasons ¶

helpfulness_with_cot_reasons(
    text: str,
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the helpfulness of some text. Prompt credit to LangChain Eval. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.helpfulness_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0 (not helpful) and 1.0 (helpful) and a string containing the reasons for the evaluation.

controversiality ¶

controversiality(text: str) -> float

Uses chat completion model. A function that completes a template to check the controversiality of some text. Prompt credit to Langchain Eval.

Example:

```python
feedback = Feedback(provider.controversiality).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not controversial) and 1.0 (controversial). TYPE: `float`

controversiality_with_cot_reasons ¶

controversiality_with_cot_reasons(
    text: str,
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the controversiality of some text. Prompt credit to Langchain Eval. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.controversiality_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0 (not controversial) and 1.0 (controversial) and a string containing the reasons for the evaluation.

misogyny ¶

misogyny(text: str) -> float

Uses chat completion model. A function that completes a template to check the misogyny of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.misogyny).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not misogynistic) and 1.0 (misogynistic). TYPE: `float`

misogyny_with_cot_reasons ¶

misogyny_with_cot_reasons(text: str) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the misogyny of some text. Prompt credit to LangChain Eval. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.misogyny_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0.0 (not misogynistic) and 1.0 (misogynistic) and a string containing the reasons for the evaluation.

criminality ¶

criminality(text: str) -> float

Uses chat completion model. A function that completes a template to check the criminality of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.criminality).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not criminal) and 1.0 (criminal). TYPE: `float`

criminality_with_cot_reasons ¶

criminality_with_cot_reasons(
    text: str,
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the criminality of some text. Prompt credit to LangChain Eval. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.criminality_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0.0 (not criminal) and 1.0 (criminal) and a string containing the reasons for the evaluation.

insensitivity ¶

insensitivity(text: str) -> float

Uses chat completion model. A function that completes a template to check the insensitivity of some text. Prompt credit to LangChain Eval.

Example:

```python
feedback = Feedback(provider.insensitivity).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (not insensitive) and 1.0 (insensitive). TYPE: `float`

insensitivity_with_cot_reasons ¶

insensitivity_with_cot_reasons(
    text: str,
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check the insensitivity of some text. Prompt credit to LangChain Eval. Also uses chain of thought methodology and emits the reasons.

Example:

```python
feedback = Feedback(provider.insensitivity_with_cot_reasons).on_output()
```

PARAMETER	DESCRIPTION
`text`	The text to evaluate. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0.0 (not insensitive) and 1.0 (insensitive) and a string containing the reasons for the evaluation.

comprehensiveness_with_cot_reasons ¶

comprehensiveness_with_cot_reasons(
    source: str, summary: str
) -> Tuple[float, Dict]

Uses chat completion model. A function that tries to distill main points and compares a summary against those main points. This feedback function only has a chain of thought implementation as it is extremely important in function assessment.

Example:

```python
feedback = Feedback(provider.comprehensiveness_with_cot_reasons).on_input_output()
```

PARAMETER	DESCRIPTION
`source`	Text corresponding to source material. TYPE: `str`
`summary`	Text corresponding to a summary. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0.0 (not comprehensive) and 1.0 (comprehensive) and a string containing the reasons for the evaluation.

summarization_with_cot_reasons ¶

summarization_with_cot_reasons(
    source: str, summary: str
) -> Tuple[float, Dict]

Summarization is deprecated in place of comprehensiveness. This function is no longer implemented.

stereotypes ¶

stereotypes(prompt: str, response: str) -> float

Uses chat completion model. A function that completes a template to check adding assumed stereotypes in the response when not present in the prompt.

Example:

```python
feedback = Feedback(provider.stereotypes).on_input_output()
```

PARAMETER	DESCRIPTION
`prompt`	A text prompt to an agent. TYPE: `str`
`response`	The agent's response to the prompt. TYPE: `str`

RETURNS	DESCRIPTION
`float`	A value between 0.0 (no stereotypes assumed) and 1.0 (stereotypes assumed).

stereotypes_with_cot_reasons ¶

stereotypes_with_cot_reasons(
    prompt: str, response: str
) -> Tuple[float, Dict]

Uses chat completion model. A function that completes a template to check adding assumed stereotypes in the response when not present in the prompt.

Example:

```python
feedback = Feedback(provider.stereotypes_with_cot_reasons).on_input_output()
```

PARAMETER	DESCRIPTION
`prompt`	A text prompt to an agent. TYPE: `str`
`response`	The agent's response to the prompt. TYPE: `str`

RETURNS	DESCRIPTION
`Tuple[float, Dict]`	Tuple[float, str]: A tuple containing a value between 0.0 (no stereotypes assumed) and 1.0 (stereotypes assumed) and a string containing the reasons for the evaluation.

groundedness_measure_with_cot_reasons ¶

groundedness_measure_with_cot_reasons(
    source: str,
    statement: str,
    use_sent_tokenize: bool = True,
) -> Tuple[float, dict]

A measure to track if the source material supports each sentence in the statement using an LLM provider.

The statement will first be split by a tokenizer into its component sentences.

Then, trivial statements are eliminated so as to not dilute the evaluation.

The LLM will process each statement, using chain of thought methodology to emit the reasons.

Abstentions will be considered as grounded.

Example:

```python
from trulens.core import Feedback
from trulens.providers.openai import OpenAI

provider = OpenAI()

f_groundedness = (
    Feedback(provider.groundedness_measure_with_cot_reasons)
    .on(context.collect()
    .on_output()
    )
```

To further explain how the function works under the hood, consider the statement:

"Hi. I'm here to help. The university of Washington is a public research university. UW's connections to major corporations in Seattle contribute to its reputation as a hub for innovation and technology"

The function will split the statement into its component sentences:

"Hi."
"I'm here to help."
"The university of Washington is a public research university."
"UW's connections to major corporations in Seattle contribute to its reputation as a hub for innovation and technology"

Next, trivial statements are removed, leaving only:

"The university of Washington is a public research university."
"UW's connections to major corporations in Seattle contribute to its reputation as a hub for innovation and technology"

The LLM will then process the statement, to assess the groundedness of the statement.

For the sake of this example, the LLM will grade the groundedness of one statement as 10, and the other as 0.

Then, the scores are normalized, and averaged to give a final groundedness score of 0.5.

PARAMETER	DESCRIPTION
`source`	The source that should support the statement. TYPE: `str`
`statement`	The statement to check groundedness. TYPE: `str`
`use_sent_tokenize`	Whether to split the statement into sentences using punkt sentence tokenizer. If False, use LLM to split the statement. TYPE: `bool` DEFAULT: `True`

Returns: Tuple[float, dict]: A tuple containing a value between 0.0 (not grounded) and 1.0 (grounded) and a dictionary containing the reasons for the evaluation.

qs_relevance ¶

qs_relevance(*args, **kwargs)

Deprecated. Use relevance instead.

qs_relevance_with_cot_reasons ¶

qs_relevance_with_cot_reasons(*args, **kwargs)

Deprecated. Use relevance_with_cot_reasons instead.

groundedness_measure_with_cot_reasons_consider_answerability ¶

groundedness_measure_with_cot_reasons_consider_answerability(
    source: str,
    statement: str,
    question: str,
    use_sent_tokenize: bool = True,
) -> Tuple[float, dict]

A measure to track if the source material supports each sentence in the statement using an LLM provider.

The statement will first be split by a tokenizer into its component sentences.

Then, trivial statements are eliminated so as to not delete the evaluation.

The LLM will process each statement, using chain of thought methodology to emit the reasons.

In the case of abstentions, such as 'I do not know', the LLM will be asked to consider the answerability of the question given the source material.

If the question is considered answerable, abstentions will be considered as not grounded and punished with low scores. Otherwise, unanswerable abstentions will be considered grounded.

Example:

```python
from trulens.core import Feedback
from trulens.providers.openai import OpenAI

provider = OpenAI()

f_groundedness = (
    Feedback(provider.groundedness_measure_with_cot_reasons)
    .on(context.collect()
    .on_output()
    .on_input()
    )
```

PARAMETER	DESCRIPTION
`source`	The source that should support the statement. TYPE: `str`
`statement`	The statement to check groundedness. TYPE: `str`
`question`	The question to check answerability. TYPE: `str`
`use_sent_tokenize`	Whether to split the statement into sentences using punkt sentence tokenizer. If False, use LLM to split the statement. TYPE: `bool` DEFAULT: `True`

Returns: Tuple[float, dict]: A tuple containing a value between 0.0 (not grounded) and 1.0 (grounded) and a dictionary containing the reasons for the evaluation.

generate_score ¶

generate_score(
    system_prompt: str,
    user_prompt: Optional[str] = None,
    min_score_val: int = 0,
    max_score_val: int = 3,
    temperature: float = 0.0,
) -> float

Base method to generate a score only, used for evaluation.

PARAMETER	DESCRIPTION
`system_prompt`	A pre-formatted system prompt. TYPE: `str`
`user_prompt`	An optional user prompt. TYPE: `Optional[str]` DEFAULT: `None`
`min_score_val`	The minimum score value. Default is 0. TYPE: `int` DEFAULT: `0`
`max_score_val`	The maximum score value. Default is 3. TYPE: `int` DEFAULT: `3`
`temperature`	The temperature value for LLM score generation. Default is 0.0. TYPE: `float` DEFAULT: `0.0`

RETURNS	DESCRIPTION
`float`	The score on a 0-1 scale.

generate_score_and_reasons ¶

generate_score_and_reasons(
    system_prompt: str,
    user_prompt: Optional[str] = None,
    min_score_val: int = 0,
    max_score_val: int = 3,
    temperature: float = 0.0,
) -> Union[float, Tuple[float, Dict]]

Base method to generate a score and reason, used for evaluation.

PARAMETER	DESCRIPTION
`system_prompt`	A pre-formatted system prompt. TYPE: `str`
`user_prompt`	An optional user prompt. TYPE: `Optional[str]` DEFAULT: `None`
`min_score_val`	The minimum score value. Default is 0. TYPE: `int` DEFAULT: `0`
`max_score_val`	The maximum score value. Default is 3. TYPE: `int` DEFAULT: `3`
`temperature`	The temperature value for LLM score generation. Default is 0.0. TYPE: `float` DEFAULT: `0.0`

RETURNS	DESCRIPTION
`Union[float, Tuple[float, Dict]]`	The score on a 0-1 scale.
`Union[float, Tuple[float, Dict]]`	Reason metadata if returned by the LLM.

trulens.providers.bedrock.provider¶