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## 1. Learner Profile Vector
```text
FUNCTION build_learner_profile_vector(registration, diagnostic, history):
prior_learning_embedding = embed(registration.prior_learning)
goal_embedding = embed(registration.goals)
education_features = encode_categorical(registration.educational_level)
readiness_features = normalize(diagnostic.scores)
preference_features = encode_optional(registration.preferences)
behavior_features = aggregate(history)
profile_vector = concatenate(
prior_learning_embedding,
goal_embedding,
education_features,
readiness_features,
preference_features,
behavior_features
)
mastery_map = initialize_mastery(diagnostic)
RETURN { profile_vector, mastery_map }
```
## 2. Module Vectorization
```text
FUNCTION build_module_vector(module):
objective_embedding = embed(module.objectives)
topic_embedding = embed(module.topics)
bloom_features = encode_bloom_levels(module.objectives)
workload_features = normalize(module.estimated_minutes, module.ects)
activity_features = encode_multilabel(module.activity_types)
prerequisite_features = encode_graph_position(module.prerequisites)
RETURN concatenate(
objective_embedding,
topic_embedding,
bloom_features,
workload_features,
activity_features,
prerequisite_features
)
```
## 3. Hybrid Recommendation
```text
FUNCTION recommend_modules(learner, candidates):
FOR module IN candidates:
content_score = cosine_similarity(learner.profile_vector, module.vector)
collaborative_score = collaborative_model.predict(learner.id, module.id)
readiness_score = readiness_alignment(learner.mastery_map, module.required_competencies)
pacing_score = pace_alignment(learner, module)
diversity_penalty = novelty_penalty(learner.recent_topics, module.topic_cluster)
final_score =
0.35 * content_score +
0.30 * collaborative_score +
0.20 * readiness_score +
0.15 * pacing_score -
diversity_penalty
IF not prerequisites_satisfied(learner, module):
final_score = -INF
RETURN top_k_by_score(candidates)
```
## 4. Dynamic Assessment Generation
```text
FUNCTION generate_unique_assessment(blueprint, learner):
selected_items = []
FOR objective IN blueprint.objectives:
pool = filter_question_pool(
objective=objective,
difficulty=target_difficulty(learner, objective)
)
item = choose_unique_variant(pool, learner.previous_items)
IF item.parameterized:
item = inject_unique_parameters(item, learner.id, now())
IF item.ai_generatable:
item = ai_generate_variant(item.template, blueprint.rubric)
selected_items.append(item)
RETURN shuffle(selected_items)
```
## 5. Open-Ended AI Evaluation
```text
FUNCTION evaluate_open_response(response, rubric):
deterministic_checks = run_basic_checks(response, rubric)
ai_result = ai_score_with_rubric(response.text, rubric)
final_score = weighted_merge(deterministic_checks, ai_result.score)
save_audit_trace(response.id, rubric, ai_result.rationale, ai_result.confidence)
IF ai_result.confidence < 0.60:
queue_human_review(response.id)
RETURN final_score
```
## 6. Integrity Detection
```text
FUNCTION integrity_check(attempt):
plagiarism = compare_to_corpus(attempt.responses)
peer_similarity = compare_to_peer_attempts(attempt)
timing_anomaly = detect_impossible_timing(attempt.event_stream)
session_anomaly = detect_session_irregularity(attempt.session_metadata)
risk = weighted_sum(plagiarism, peer_similarity, timing_anomaly, session_anomaly)
IF risk >= 0.85:
RETURN "block"
IF risk >= 0.60:
RETURN "review"
RETURN "pass"
```
## 7. Dropout Risk Prediction
```text
FUNCTION predict_dropout_risk(learner_features):
risk_probability = dropout_model.predict([
learner_features.time_on_task_7d,
learner_features.inactivity_days,
learner_features.quiz_failure_rate,
learner_features.pace_slippage,
learner_features.unfinished_activity_ratio
])
IF risk_probability > 0.75:
trigger_high_priority_intervention()
ELSE IF risk_probability > 0.45:
trigger_nudge()
RETURN risk_probability
```
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