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"webidl-conversions": "^3.0.0" } }, + "node_modules/wide-align": { + "version": "1.1.5", + "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.5.tgz", + "integrity": "sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==", + "dependencies": { + "string-width": "^1.0.2 || 2 || 3 || 4" + } + }, "node_modules/wrap-ansi": { "version": "7.0.0", "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz", "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==", - "dev": true, "dependencies": { "ansi-styles": "^4.0.0", "string-width": "^4.1.0", @@ -2528,8 +3185,7 @@ "node_modules/wrappy": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz", - "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==", - "dev": true + "integrity": 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"^4.22.0", "@types/express": "^4.17.21", "axios": "^1.7.7", "express": "^4.21.0", @@ -34,4 +35,4 @@ "dotenv": "^16.4.5", "ts-node-dev": "^2.0.0" } -} \ No newline at end of file +} diff --git a/backend/src/analysis/argumentScoreHandler.ts b/backend/src/analysis/argumentScoreHandler.ts new file mode 100644 index 0000000..00de0ca --- /dev/null +++ b/backend/src/analysis/argumentScoreHandler.ts @@ -0,0 +1,200 @@ +import { ReactionForGraph, getReactionsForGraph } from "../db/operations/reactionOperations"; +import { cosineSimilarityMatrix } from "../utils/math"; + + +interface ArgumentScore { + argumentId: string; + consensusScore: number; + fragmentationScore: number; + clarityScore: number; +} + +export async function getArgumentScores(graphId: string): Promise { + const reactionArray: ReactionForGraph[] = await getReactionsForGraph(graphId); + const minimumVotesUser = 3; + const minimumVotesArgument = 2; + + // Count votes for each user and each argument + const userVoteCounts = new Map(); + const argumentVoteCounts = new Map(); + + for (const reaction of reactionArray) { + if (reaction.type === 'agree' || reaction.type === 'disagree') { + userVoteCounts.set(reaction.userId, (userVoteCounts.get(reaction.userId) || 0) + 1); + argumentVoteCounts.set(reaction.argumentId, (argumentVoteCounts.get(reaction.argumentId) || 0) + 1); + } + } + + // Filter reactions + const filteredReactions = reactionArray.filter(reaction => { + const userVoteCount = userVoteCounts.get(reaction.userId) || 0; + const argumentVoteCount = argumentVoteCounts.get(reaction.argumentId) || 0; + return userVoteCount >= minimumVotesUser && argumentVoteCount >= minimumVotesArgument; + }); + + // Create maps for user and argument indices + const userIndexMap = new Map(); + const argumentIndexMap = new Map(); + + // Fill the maps + let userIndex = 0; + let argumentIndex = 0; + + for (const reaction of filteredReactions) { + if (!userIndexMap.has(reaction.userId)) { + userIndexMap.set(reaction.userId, userIndex); + userIndex++; + } + if (!argumentIndexMap.has(reaction.argumentId)) { + argumentIndexMap.set(reaction.argumentId, argumentIndex); + argumentIndex++; + } + } + + // Initialize the voting matrix and unclear matrix + const userCount = userIndexMap.size; + const argumentCount = argumentIndexMap.size; + + const votingMatrix = new Array(userCount).fill(0).map(() => new Array(argumentCount).fill(0)); + const unclearMatrix = new Array(userCount).fill(0).map(() => new Array(argumentCount).fill(0)); + + // Fill the matrices + for (const reaction of filteredReactions) { + const argumentIdx = argumentIndexMap.get(reaction.argumentId)!; + const userIdx = userIndexMap.get(reaction.userId)!; + if (reaction.type === 'agree') { + votingMatrix[userIdx][argumentIdx] = 1; + } + else if (reaction.type === 'disagree') { + votingMatrix[userIdx][argumentIdx] = -1; + } + else if (reaction.type === 'unclear') { + unclearMatrix[userIdx][argumentIdx] = 1; + } + else { + throw new Error('Invalid reaction type'); + } + } + + // Calculate the user similarity matrix + const userSimilarityMatrix: number[][] = cosineSimilarityMatrix(votingMatrix); + + // Calculate the argument scores for each argument + const argumentScores: { + argumentId: string, + consensusScore: number, + fragmentationScore: number + clarityScore: number + }[] = []; + + argumentIndexMap.forEach((argumentIndex, argumentId) => { + //Identify users who voted on this argument + const usersWhoVoted: number[] = []; + for (let i = 0; i < userCount; i++) { + if (votingMatrix[i][argumentIndex] !== 0) { + usersWhoVoted.push(i); + } + } + const votes = usersWhoVoted.map(i => votingMatrix[i][argumentIndex]); + + if (usersWhoVoted.length >= 2) { + + // Get smaller matrices for just the users who voted + const userSimilarities = usersWhoVoted.map(i => + usersWhoVoted.map(j => userSimilarityMatrix[i][j]) + ); + const userAgreementMatrix = votes.map(voteI => + votes.map(voteJ => (voteI === voteJ ? 1 : 0)) + ); + const userDisagreementMatrix = votes.map(voteI => + votes.map(voteJ => (voteI === -voteJ ? 1 : 0)) + ); + + // Compute individual user scores (to be aggregated as the final argument score later) + const userConsensusScores = new Array(usersWhoVoted.length).fill(0); + const userFragmentationScores = new Array(usersWhoVoted.length).fill(0); + const userUniquenessScores = new Array(usersWhoVoted.length).fill(0); + const userUnclearScores = new Array(usersWhoVoted.length).fill(0); + + for (let i = 0; i < usersWhoVoted.length; i++) { + // Partition users into in-group and out-group + const inGroup: number[] = []; + const outGroup: number[] = []; + for (let j = 0; j < usersWhoVoted.length; j++) { + const similarity = userSimilarities[i][j]; + if (similarity > 0) { + inGroup.push(j); + } else if (similarity < 0) { + outGroup.push(j); + } + } + + // Calculate user consensus score + if (outGroup.length > 0) { + let consensusSum = 0 + let outgroupWeightedSize = 0; + for (const j of outGroup) { + consensusSum += userAgreementMatrix[i][j] * userSimilarities[i][j]; + outgroupWeightedSize += userSimilarities[i][j]; + } + userConsensusScores[i] = consensusSum / outgroupWeightedSize; + } + else { + userConsensusScores[i] = 0; + } + + // Calculate user fragmentation score + let fragmentationSum = 0; + let ingroupWeightedSize = 0; + for (const j of inGroup) { // inGroup.length is always > 0 (includes self) + fragmentationSum += userDisagreementMatrix[i][j] * userSimilarities[i][j]; + ingroupWeightedSize += userSimilarities[i][j]; + } + userFragmentationScores[i] = fragmentationSum / ingroupWeightedSize; + + + // Calculate user uniqueness score + userUniquenessScores[i] = 1 / ingroupWeightedSize + + // Get user unclear score + userUnclearScores[i] = unclearMatrix[usersWhoVoted[i]][argumentIndex]; + } + + // Aggregate user scores to get argument scores + // Weighted average of user scores, weighted by uniqueness score + + // Calculate argument consensus score + let weightedConsensusSum = 0; + let uniquenessSum = 0; + for (let i = 0; i < usersWhoVoted.length; i++) { + weightedConsensusSum += userConsensusScores[i] * userUniquenessScores[i]; + uniquenessSum += userUniquenessScores[i]; + } + const argumentConsensusScore = weightedConsensusSum / uniquenessSum; + + // Calculate argument fragmentation score + let weightedFragmentationSum = 0; + for (let i = 0; i < usersWhoVoted.length; i++) { + weightedFragmentationSum += userFragmentationScores[i] * userUniquenessScores[i]; + } + // Score is multiplied by 2 to scale it to the range [0, 1] + const argumentFragmentationScore = (weightedFragmentationSum / uniquenessSum) * 2; + + // Calculate argument clarity score + let unclearSum = 0; + for (let i = 0; i < usersWhoVoted.length; i++) { + unclearSum += userUnclearScores[i] * userUniquenessScores[i]; + } + const argumentClarityScore = 1 - (unclearSum / uniquenessSum); + + argumentScores.push({ + argumentId, + consensusScore: argumentConsensusScore, + fragmentationScore: argumentFragmentationScore, + clarityScore: argumentClarityScore + }); + } + }); + + return argumentScores; +} \ No newline at end of file diff --git a/backend/src/db/operations/graphOperations.ts b/backend/src/db/operations/graphOperations.ts index 03f0bcf..f24cec7 100644 --- a/backend/src/db/operations/graphOperations.ts +++ b/backend/src/db/operations/graphOperations.ts @@ -1,6 +1,7 @@ import { query } from '../db'; import { generateGraphId } from '../idGenerator'; import { Argument, Edge, Graph } from '../../.shared/types'; +import { getArgumentScores } from '../../analysis/argumentScoreHandler'; export async function createGraph(name: string, authorId: string): Promise { const id = generateGraphId(); @@ -60,6 +61,20 @@ export async function getGraphData(graphId: string, userId: string): Promise [ + score.argumentId, + { + consensus: score.consensusScore, + fragmentation: score.fragmentationScore, + clarity: score.clarityScore + } + ]) + ); + const args: Argument[] = argumentsResult.rows.map((row: { id: string; graph_id: string; statement: string; embedding: number[], author_id: string }) => ({ id: row.id, graphId: row.graph_id, @@ -67,7 +82,8 @@ export async function getGraphData(graphId: string, userId: string): Promise ({ diff --git a/backend/src/db/operations/reactionOperations.ts b/backend/src/db/operations/reactionOperations.ts index 8ba0ee1..9c739a5 100644 --- a/backend/src/db/operations/reactionOperations.ts +++ b/backend/src/db/operations/reactionOperations.ts @@ -37,4 +37,28 @@ export async function removeReaction( 'DELETE FROM reactions WHERE user_id = $1 AND argument_id = $2 AND type = $3', [userId, argumentId, type] ); +} + +export interface ReactionForGraph { + userId: string; + argumentId: string; + type: string; +} + +export async function getReactionsForGraph( + graphId: string +): Promise { + const result = await query( + `SELECT user_id, argument_id, type + FROM reactions + JOIN arguments ON reactions.argument_id = arguments.id + WHERE arguments.graph_id = $1`, + [graphId] + ); + + return result.rows.map((row: any) => ({ + userId: row.user_id, + argumentId: row.argument_id, + type: row.type + })); } \ No newline at end of file diff --git a/backend/src/embeddingHandler.ts b/backend/src/embeddingHandler.ts index 76051ba..856631f 100644 --- a/backend/src/embeddingHandler.ts +++ b/backend/src/embeddingHandler.ts @@ -1,6 +1,7 @@ import axios from 'axios'; import { Edge, Graph } from './.shared/types'; import { generateEdgeId } from './db/idGenerator'; +import { cosineSimilarity } from './utils/math'; import config from './config'; export function generateTopKSimilarEdges(graph: Graph, k = 2): Edge[] { @@ -45,18 +46,6 @@ export function generateTopKSimilarEdges(graph: Graph, k = 2): Edge[] { })); } -function cosineSimilarity(embedding1: number[], embedding2: number[]) { - if (embedding1.length !== embedding2.length) { - throw new Error('Embeddings must have the same length'); - } - - const dotProduct = embedding1.reduce((acc, cur, i) => acc + cur * embedding2[i], 0); - const magnitude1 = Math.sqrt(embedding1.reduce((acc, cur) => acc + cur * cur, 0)); - const magnitude2 = Math.sqrt(embedding2.reduce((acc, cur) => acc + cur * cur, 0)); - - return dotProduct / (magnitude1 * magnitude2); -} - export async function embedText(texts: string[]) { const openAI_api_key = config.openAIKey; if (!openAI_api_key) { diff --git a/backend/src/utils/math.ts b/backend/src/utils/math.ts new file mode 100644 index 0000000..5647a2f --- /dev/null +++ b/backend/src/utils/math.ts @@ -0,0 +1,43 @@ +import * as tf from '@tensorflow/tfjs-node'; + +export function cosineSimilarity(vector1: number[], vector2: number[]) { + if (vector1.length !== vector2.length) { + throw new Error('Embeddings must have the same length'); + } + + // Convert arrays to tensors + const tensor1 = tf.tensor1d(vector1); + const tensor2 = tf.tensor1d(vector2); + + // Calculate dot product and magnitudes using TensorFlow + const dotProduct = tf.dot(tensor1, tensor2).dataSync()[0]; + const magnitude1 = tf.norm(tensor1).dataSync()[0]; + const magnitude2 = tf.norm(tensor2).dataSync()[0]; + + // Dispose tensors to free memory + tensor1.dispose(); + tensor2.dispose(); + + return dotProduct / (magnitude1 * magnitude2); + } + +export function cosineSimilarityMatrix(matrix: number[][]) { + if (matrix.length === 0 || matrix[0].length === 0) { + return [[]]; + } + const matrixTensor = tf.tensor2d(matrix); + const dotProduct = tf.matMul(matrixTensor, matrixTensor.transpose()); + + const magnitude = tf.sqrt(tf.sum(tf.square(matrixTensor), 1, true)); + const magnitudeProduct = tf.matMul(magnitude, magnitude.transpose()); + + const similarity = dotProduct.div(magnitudeProduct); + + // Dispose tensors to free memory + matrixTensor.dispose(); + dotProduct.dispose(); + magnitude.dispose(); + magnitudeProduct.dispose(); + + return similarity.arraySync() as number[][]; + } \ No newline at end of file diff --git a/frontend/src/components/NodeInfoBox.tsx b/frontend/src/components/NodeInfoBox.tsx index e4b5576..d99c5c9 100644 --- a/frontend/src/components/NodeInfoBox.tsx +++ b/frontend/src/components/NodeInfoBox.tsx @@ -7,6 +7,16 @@ import { Argument } from '../shared/types'; import { useWebSocket } from '../contexts/WebSocketContext'; import { useAuth } from '../contexts/AuthContext'; + +const getScoreLabel = (score: number | undefined): string => { + if (score === undefined) return 'unknown'; + if (score < 0.2) return 'very low'; + if (score < 0.4) return 'low'; + if (score < 0.6) return 'medium'; + if (score < 0.8) return 'high'; + return 'very high'; +}; + interface NodeInfoBoxProps { argument: Argument; onClose: () => void; @@ -72,7 +82,25 @@ const NodeInfoBox: React.FC = ({ argument, onClose }) => { -

{argument.statement}

+ +

{argument.statement}

+ +
+ + View scores + +
+ {argument.score ? ( + <> + Consensus: {getScoreLabel(argument.score.consensus)} + Fragmentation: {getScoreLabel(argument.score.fragmentation)} + Clarity: {getScoreLabel(argument.score.clarity)} + + ) : ( + More user feedback is required to generate scores. + )} +
+
); }; diff --git a/frontend/src/shared/types.ts b/frontend/src/shared/types.ts index 2704514..0597988 100644 --- a/frontend/src/shared/types.ts +++ b/frontend/src/shared/types.ts @@ -21,6 +21,11 @@ export interface Argument { disagree?: boolean; unclear?: boolean; }; + score?: { + consensus: number; + fragmentation: number; + clarity: number; + }; } // Edges are the connections between arguments diff --git a/frontend/src/views/GraphView.tsx b/frontend/src/views/GraphView.tsx index 3aaab26..ec3d8f3 100644 --- a/frontend/src/views/GraphView.tsx +++ b/frontend/src/views/GraphView.tsx @@ -4,7 +4,6 @@ import { Argument, Graph } from '../shared/types'; import { Link, useParams } from 'react-router-dom'; import { useWebSocket } from '../contexts/WebSocketContext'; import { useAuth } from '../contexts/AuthContext'; - import LoadingSpinner from '../components/LoadingSpinner'; import NodeInfoBox from '../components/NodeInfoBox'; import { buttonStyles } from '../styles/defaultStyles'; @@ -51,7 +50,21 @@ const GraphView: React.FC = () => { useEffect(() => { if (graph) { document.title = `${graph.name} - MindMeld`; - const nodes: NodeData[] = graph.arguments.map(arg => ({ id: arg.id, name: arg.statement, argument: arg })); + const nodes: NodeData[] = graph.arguments.map(arg => { + // TODO Make colors nicer + const r = Math.round((arg.score?.consensus ?? 0) * 255); + const g = Math.round((arg.score?.fragmentation ?? 0) * 255); + const b = Math.round((1 - (arg.score?.clarity ?? 0)) * 255); + + return { + id: arg.id, + name: arg.statement, + color: arg.score + ? `rgb(${r}, ${g}, ${b})` + : '#94a3b8', + argument: arg + }; + }); const links: LinkData[] = graph.edges.map(edge => ({ source: edge.sourceId, target: edge.targetId })); setGraphData({ nodes, links }); } diff --git a/package.json b/package.json index bb5889a..e476e33 100644 --- a/package.json +++ b/package.json @@ -14,4 +14,4 @@ "dependencies": { "concurrently": "^6.2.0" } -} \ No newline at end of file +}