Add removing of duplicates from pipeline. Add to sort step. Move score logic to robertaMetrics node.

This commit is contained in:
William Jeynes
2026-03-13 14:51:14 +00:00
parent d5c6cb444d
commit 0a7bb114d2
6 changed files with 105 additions and 7 deletions
+6 -1
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@@ -8,7 +8,12 @@ export const robertaMetrics: GraphNode<typeof MessagesState> = async (state) =>
const result = await evaluateWithRoberta({answer}) const result = await evaluateWithRoberta({answer})
let score = 0;
if (result.validProb > result.invalidProb) {
score = 0.7 + ((result.validProb - result.invalidProb)*0.3);
}
return { return {
messages: [ new AIMessage("ROBERTA:" + result)] messages: [ new AIMessage("ROBERTA:" + score)]
}; };
}; };
+6 -2
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@@ -1,10 +1,14 @@
import { GraphNode } from "@langchain/langgraph"; import { GraphNode } from "@langchain/langgraph";
import { MessagesState } from "../state"; import { MessagesState } from "../state";
import { AIMessage } from "@langchain/core/messages"; import { AIMessage } from "@langchain/core/messages";
import { removeDuplicates } from "../tools/removeDuplicates";
export const sort: GraphNode<typeof MessagesState> = async (state) => { export const sort: GraphNode<typeof MessagesState> = async (state) => {
//not sure which will be better from API, just do both
let current = state.proposedTriggerEvent; let current = state.proposedTriggerEvent;
// remove duplicates
await removeDuplicates(current)
// not sure which will be better from API, just do both
current.sort((a, b) => ((b.score as number) ?? 0) - ((a.score as number) ?? 0)); current.sort((a, b) => ((b.score as number) ?? 0) - ((a.score as number) ?? 0));
+44
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@@ -0,0 +1,44 @@
import { pipeline, cos_sim } from "@huggingface/transformers";
let featureExtractor = await pipeline(
"feature-extraction",
"Xenova/all-MiniLM-L6-v2"
);
export async function removeDuplicates(state: any) {
const embeddings: number[][] = [];
const outputs = await featureExtractor(
state.map(s => s.Event),
{ pooling: "mean", normalize: true }
);
for (const o of outputs) {
embeddings.push(Array.from(o.data));
}
const len = state.length;
for (let i = 0; i < len; i++) {
for (let j = i + 1; j < len; j++) {
if (state[i].score === -1 || state[j].score === -1) continue;
const sim = cos_sim(embeddings[i], embeddings[j]);
console.log(sim)
if (sim > 0.55) {
const scoreI = state[i].score ?? 0;
const scoreJ = state[j].score ?? 0;
if (scoreI > scoreJ) {
state[j].score = -1;
} else if (scoreJ > scoreI) {
state[i].score = -1;
} else {
// if equal, keep earlier
state[j].score = -1;
}
}
}
}
return state;
}
+3 -3
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@@ -4,15 +4,15 @@ export async function evaluateWithRoberta({
answer answer
}: { }: {
answer: string; answer: string;
}) { }): Promise<{ validProb: number; invalidProb: number; }> {
const res = await axios.post("http://localhost:8000/evaluate", { const res = await axios.post("http://localhost:8000/evaluate", {
answer answer
}); });
// console.log(res.data) // console.log(res.data)
const validProb = res.data["probabilities"][0][0] const validProb = res.data["probabilities"][0][0]
const invalidProv = res.data["probabilities"][0][1] const invalidProb = res.data["probabilities"][0][1]
return validProb > invalidProv ? 1 : 0; return {validProb, invalidProb};
} }
// let res = await evaluateWithRoberta({answer: "High-profile political downplaying of COVID-19 (examples: President Trump saying 'it will go away' in MarchAugust 2020)"}); // let res = await evaluateWithRoberta({answer: "High-profile political downplaying of COVID-19 (examples: President Trump saying 'it will go away' in MarchAugust 2020)"});
+45
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@@ -0,0 +1,45 @@
import pandas as pd
import numpy as np
from sentence_transformers import SentenceTransformer
from sklearn.metrics.pairwise import cosine_similarity
# CONFIG
CSV_PATH = "../../data/classify.csv"
EVENT_COLUMN = "event"
TOP_K = 60
# Load CSV
df = pd.read_csv(CSV_PATH)
events = df[EVENT_COLUMN].astype(str).tolist()
# Load embedding model
model = SentenceTransformer("sentence-transformers/all-mpnet-base-v2")
print("Embedding events...")
embeddings = model.encode(events, batch_size=32, show_progress_bar=True)
# Compute cosine similarity matrix
sim_matrix = cosine_similarity(embeddings)
# Collect pair similarities
pairs = []
n = len(events)
for i in range(n):
for j in range(i + 1, n): # avoid duplicates and self comparisons
pairs.append((sim_matrix[i][j], i, j))
# Sort by similarity descending
pairs.sort(reverse=True, key=lambda x: x[0])
# Top K pairs
top_pairs = pairs[:TOP_K]
print("\nTop Similar Event Pairs:\n")
for score, i, j in top_pairs:
print(f"Similarity: {score:.4f}")
print(f"Event 1: {events[i]}")
print(f"Event 2: {events[j]}")
print("-" * 60)
+1 -1
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@@ -82,7 +82,7 @@ def render():
extra_lower = (event.get("extra_info", "") or "").strip().lower() extra_lower = (event.get("extra_info", "") or "").strip().lower()
# print(extra_lower) # print(extra_lower)
if score is not None: if score is not None:
if "duplicate" in extra_lower: if score == -1 or "duplicate" in extra_lower:
dup_counter += 1 dup_counter += 1
elif score > THRESH and extra_lower == "perfect": elif score > THRESH and extra_lower == "perfect":
confidence_counter["Correct-PERFECT"] += 1 confidence_counter["Correct-PERFECT"] += 1