α

from gensim.models import LsiModel, HdpModel # Perform LSI lsi_model = LsiModel(corpus, num_topics=5, id2word=dictionary) # Print the topics topics = lsi_model.print_topics() print(topics) # Perform HDP hdp_model = HdpModel(corpus, id2wo…

[2026-04-23 17:37] xenonfun: All 20 layers healthy — no issues. - Zero dead layers. Contribution ratio range: 34-157% (dead threshold is <1%). L0 dominates (157%) as expected input-conditioner; L1-L19 all 34-94%. - No gate collapse. α …

with torch.no_grad(): doc_outputs = model(**doc_inputs) query_outputs = model(**query_inputs) doc_embeddings = doc_outputs.last_hidden_state.mean(dim=1) query_embedding = query_outputs.last_hidden_state.mean(dim…

[Turn 6077] Assistant: Fine-tuning the `alpha` value to balance sparse and dense retrieval is crucial for optimizing the performance of your hybrid retrieval system. Here are some steps and methods you can use to find the optimal `alpha` va…

3. **Evaluation and Tuning**: Evaluate the performance of your system with dynamic `alpha` adjustment and fine-tune the heuristics or models used for adjustment. ### Example Implementation Let's assume you have a simple heuristic to deter…

3. **Iterative Improvement**: Continuously evaluate and refine your approach based on performance metrics and feedback. By dynamically adjusting the `alpha` value, you can create a more flexible and adaptive retrieval system that performs …

def hybrid_ranking(sparse_scores, dense_scores, alpha=0.6): # Calculate weighted sum of sparse and dense scores hybrid_scores = alpha * sparse_scores + (1 - alpha) * dense_scores return hybrid_scores # Example usage: sparse_sco…

3. **Evaluation Metrics**: Use appropriate evaluation metrics to measure the relevance lift. Common metrics include Precision@k, Recall, and Mean Average Precision (MAP). 4. **Post-processing**: Consider post-processing steps such as re-ra…

[Turn 6413] Assistant: Great to hear that you've found a weighting scheme that provides an 18% relevance lift for 4,000 searches. Applying this to a larger dataset of 25,000 hybrid queries should be straightforward, given that the underlyin…

if max_score == min_score: return np.zeros_like(scores) return (scores - min_score) / (max_score - min_score) def hybrid_ranking(sparse_scores, dense_scores, alpha=0.6): # Normalize scores to ensure they are on the same…