Query:

Multi-faceted / Multi-hop claim

Query:

Pairwise relevance + diversity

Heuristic reordering

Query → Semantic Supports

• Optimal Transport cost

• Greedy coverage maximization

• Adaptive stopping

Item-wise relevance scoring

Top-k ranked sentences

S1 > S2 > S3 > S4 > S5

Item-level optimization

No notion of coverage saturation

S1 > S3 > S2 > S5 > S4

Query → Semantic Supports

☹️

✔️

(a) Top-k Ranking

(b) Reranking / Diversification

(c) Context Construction

Query:

Multi-faceted / Multi-hop claim

Query:

Pairwise relevance + diversity

Heuristic reordering

Query → Semantic Supports

• Optimal Transport cost

• Greedy coverage maximization

• Adaptive stopping

S1 > S2 > S3 > S4 > S5

S1 > S3 > S2 > S5 > S4

Query → Semantic Supports

• No set-level reasoning

• No redundancy control

• No set-level reasoning

• No redundancy control

• Item-level optimization

• No notion of coverage saturation

• Item-level optimization

• No notion of coverage saturation

(c) Context Construction