Description #

Text safety scorer - Safety assessment based on ShieldLM-6B-chatglm3

Key features #

• Multilingual support: Supports safety assessment for Chinese and English text
• Three-class evaluation: Outputs probabilities for safe, unsafe, and controversial categories
• Batch processing: Supports batch text safety assessment to improve processing efficiency

Technical implementation #

• Model core: Based on ShieldLM-6B-chatglm3
• Inference optimization: Supports GPU acceleration and batch inference

Application scenarios #

• Content safety review
• Text risk assessment
• Multilingual safety filtering

Operator parameters #

Input #

Output #

Each element is a struct or None:

• If the corresponding input is None, the output is None;
• Otherwise, the output is a Struct including the following fields:
• safe: Float64, the probability that the model predicts the text as "safe"
• unsafe: Float64, the probability that the model predicts the text as "unsafe"
• controversial: Float64, the probability that the model predicts the text as "controversial"

Parameters #

If a parameter does not have a default value, it is required

Examples #

The following code demonstrates how to use daft to run the operator for text safety assessment and output the probabilities for the three categories: safe, unsafe, and controversial.

from __future__ import annotations

import os

import daft
from daft import col
from daft.las.functions.text.text_safety_scorer import TextSafetyScorer
from daft.las.functions.udf import las_udf

if __name__ == "__main__":

    if os.getenv("DAFT_RUNNER", "native") == "ray":
        import logging

        import ray

        def configure_logging():
            logging.basicConfig(
                level=logging.INFO,
                format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
                datefmt="%Y-%m-%d %H:%M:%S.%s".format(),
            )
            logging.getLogger("tracing.span").setLevel(logging.WARNING)
            logging.getLogger("daft_io.stats").setLevel(logging.WARNING)
            logging.getLogger("DaftStatisticsManager").setLevel(logging.WARNING)
            logging.getLogger("DaftFlotillaScheduler").setLevel(logging.WARNING)
            logging.getLogger("DaftFlotillaDispatcher").setLevel(logging.WARNING)

        ray.init(dashboard_host="0.0.0.0", runtime_env={"worker_process_setup_hook": configure_logging})
        daft.set_runner_ray()
    daft.set_execution_config(actor_udf_ready_timeout=600)
    daft.set_execution_config(min_cpu_per_task=0)

    samples = {
        "text": [
            "",
            "",
            None,
        ]
    }

    model_path = os.getenv("MODEL_PATH", "/opt/las/models")
    model_name = "thu-coai/ShieldLM-6B-chatglm3"
    lang = ""
    batch_size = 3
    rank = 0

    ds = daft.from_pydict(samples)
    ds = ds.with_column(
        "safety_scores",
        las_udf(
            TextSafetyScorer,
            construct_args={
                "lang": lang,
                "model_path": model_path,
                "model_name": model_name,
                "batch_size": batch_size,
                "rank": rank,
            },
            num_gpus=1,
            batch_size=3,
            concurrency=1,
        )(col("text")),
    )

    ds.show()
    # ╭─────────────────────────────┬────────────────────────────────────────────────────────────────╮
    # │ text                        ┆ safety_scores                                                  │
    # │ ---                         ┆ ---                                                            │
    # │ Utf8                        ┆ Struct[safe: Float64, unsafe: Float64, controversial: Float64] │
    # ╞═════════════════════════════╪════════════════════════════════════════════════════════════════╡
    # │ Love and peace are the main theme of the world.         ┆ {safe: 0.8632398843765259,                                     │
    # │                             ┆ unsafe: 0.04434245824813843,                                   │
    # │                             ┆ controversial: 0.09241761267185211}                            │
    # ├╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
    # │ I hate everyone, it would be best if they all died.       ┆ {safe: 0.0004654618678614497,                                  │
    # │                             ┆ unsafe: 0.9993947744369507,                                    │
    # │                             ┆ controversial: 0.00013975700130686164}                         │
    # ├╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
    # │ None                        ┆ None                                                           │
    # ╰─────────────────────────────┴────────────────────────────────────────────────────────────────╯