llmware / slim-sa-ner

SLIM-SA-NER

slim-sa-ner combines two of the most popular traditional classifier functions ( Sentiment Analysis and Named Entity Recognition ), and reimagines them as function calls on a specialized decoder-based LLM, generating output consisting of a python dictionary with keys corresponding to sentiment, and NER identifiers, such as people, organization, and place, e.g.:

{'sentiment': ['positive'], people': ['..'], 'organization': ['..'],
'place': ['..]}

This 3B parameter 'combo' model is designed to illustrate the potential power of using function calls on small, specialized models to enable a single model architecture to combine the capabilities of what were traditionally two separate model architectures on an encoder.

The intent of SLIMs is to forge a middle-ground between traditional encoder-based classifiers and open-ended API-based LLMs, providing an intuitive, flexible natural language response, without complex prompting, and with improved generalization and ability to fine-tune to a specific domain use case.

This model is fine-tuned on top of llmware/bling-stable-lm-3b-4e1t-v0 , which in turn, is a fine-tune of stabilityai/stablelm-3b-4elt.

For fast inference, we would recommend the 'quantized tool' version of this model, e.g., 'slim-sa-ner-tool' .

Prompt format:

function = "classify"
params = "sentiment, person, organization, place"
prompt = "<human> " + {text} + "\n" +
"<{function}> " + {params} + "</{function}>" + "\n<bot>:"

model = AutoModelForCausalLM.from_pretrained("llmware/slim-sa-ner")
tokenizer = AutoTokenizer.from_pretrained("llmware/slim-sa-ner")

function = "classify"
params = "topic"

text = "Tesla stock declined yesterday 8% in premarket trading after a poorly-received event in San Francisco yesterday, in which the company indicated a likely shortfall in revenue."  

prompt = "<human>: " + text + "\n" + f"<{function}> {params} </{function}>\n<bot>:"

inputs = tokenizer(prompt, return_tensors="pt")
start_of_input = len(inputs.input_ids[0])

outputs = model.generate(
    inputs.input_ids.to('cpu'),
    eos_token_id=tokenizer.eos_token_id,
    pad_token_id=tokenizer.eos_token_id,
    do_sample=True,
    temperature=0.3,
    max_new_tokens=100
)

output_only = tokenizer.decode(outputs[0][start_of_input:], skip_special_tokens=True)

print("output only: ", output_only)  

# here's the fun part
try:
    output_only = ast.literal_eval(llm_string_output)
    print("success - converted to python dictionary automatically")
except:
    print("fail - could not convert to python dictionary automatically - ", llm_string_output)

from llmware.models import ModelCatalog
slim_model = ModelCatalog().load_model("llmware/slim-sa-ner")
response = slim_model.function_call(text,params=["sentiment", "people", "organization", "place"], function="classify")

print("llmware - llm_response: ", response)

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