hierarchical navigable small world (HNSW) introduction

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Which category does HNSW belong to?

Trees

Hashes

Proximity graphs

Graphs (correct)

Which technique heavily contributed to HNSW?

Sorted array

Linked list

Skip lists

Probability skip list (correct)

What is the purpose of the probability skip list?

To allow fast search like a sorted array

To link vertices based on proximity

To enable easy insertion of new elements (correct)

To build several layers of linked lists

Which parameters can be modified after initializing the index?

efConstruction and efSearch Signup and view all the answers

What effect does increasing the efConstruction parameter have on search time?

Significant effect Signup and view all the answers

Which parameter affects the memory usage of the HNSW index?

M Signup and view all the answers

What can be done to improve search speeds in the HNSW index?

Add an IVF component Signup and view all the answers

Which type of graph uses both long-range and short-range links to reduce search times?

Navigable Small World (NSW) graph Signup and view all the answers

What is the stopping condition in a greedy-routing search process in an NSW graph?

Finding no nearer vertices in the current vertex's friend list Signup and view all the answers

What is the main difference between NSW and HNSW graphs?

NSW graphs have shorter edges in the highest layers, while HNSW graphs have longer edges in the lower layers Signup and view all the answers

What parameter determines the number of layers in HNSW graph construction?

The level multiplier Signup and view all the answers

Which library is used to implement HNSW in this text?

Faiss Signup and view all the answers

What does the parameter M_max0 represent in the HNSW graph construction?

The maximum number of links a vertex can have in layer 0 Signup and view all the answers

What is the stopping condition for insertion in the HNSW graph construction?

Reaching the local minimum in layer 0 Signup and view all the answers

What is the purpose of the assign_probas vector in the HNSW graph construction?

To determine the probability of insertion at each layer Signup and view all the answers

Which category does HNSW belong to?

Graphs Signup and view all the answers

Which technique heavily contributed to HNSW?

Both Probability Skip List and Navigable Small World Graphs Signup and view all the answers

What is the purpose of the probability skip list?

To enable fast insertion of new elements Signup and view all the answers

What is the main difference between NSW and HNSW graphs?

NSW graphs use both long-range and short-range links while HNSW graphs do not Signup and view all the answers

What parameter affects the memory usage of the HNSW index?

M_max0 Signup and view all the answers

Which parameters can be modified after initializing the HNSW index?

M and efConstruction Signup and view all the answers

Which parameter affects the recall performance in the HNSW index?

M Signup and view all the answers

Which parameter has a significant effect on search time when using a large number of queries in the HNSW index?

efConstruction Signup and view all the answers

What is the impact of increasing the efConstruction parameter in the HNSW index?

Increases recall with little effect on search time Signup and view all the answers

What is the main factor that affects the memory usage of the HNSW index?

M Signup and view all the answers

Which parameter determines the number of layers in the HNSW graph construction?

max_level Signup and view all the answers

What is the purpose of the probability skip list in the HNSW graph construction?

To assign probabilities for vector insertion at different levels Signup and view all the answers

What does the parameter M_max0 represent in the HNSW graph construction?

The maximum number of links a vertex can have Signup and view all the answers

Which technique heavily contributed to the development of HNSW?

Greedy routing Signup and view all the answers

Which library is used to implement the HNSW index in this text?

Faiss Signup and view all the answers

What is the main purpose of the 'zoom-out' phase in the greedy-routing search process in an NSW graph?

To pass through low-degree vertices Signup and view all the answers

What is the main difference between HNSW and NSW graphs?

HNSW has a hierarchical multi-layer structure, while NSW does not Signup and view all the answers

What is the purpose of the 'level multiplier' parameter in HNSW graph construction?

To balance the overlap and the number of traversals Signup and view all the answers

What is the stopping condition for the greedy-routing search process in an NSW graph?

Finding no nearer vertices in the current vertex's friend list Signup and view all the answers

What effect does decreasing the 'level multiplier' have on HNSW graph construction?

Minimizes overlap of shared neighbors across layers Signup and view all the answers

hierarchical navigable small world (HNSW) introduction

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Questions and Answers

Which category does HNSW belong to?

Which technique heavily contributed to HNSW?

What is the purpose of the probability skip list?

Which parameters can be modified after initializing the index?

What effect does increasing the efConstruction parameter have on search time?

Which parameter affects the memory usage of the HNSW index?

What can be done to improve search speeds in the HNSW index?

Which type of graph uses both long-range and short-range links to reduce search times?

What is the stopping condition in a greedy-routing search process in an NSW graph?

What is the main difference between NSW and HNSW graphs?

What parameter determines the number of layers in HNSW graph construction?

Which library is used to implement HNSW in this text?

What does the parameter M_max0 represent in the HNSW graph construction?

What is the stopping condition for insertion in the HNSW graph construction?

What is the purpose of the assign_probas vector in the HNSW graph construction?

Which category does HNSW belong to?

Which technique heavily contributed to HNSW?

What is the purpose of the probability skip list?

What is the main difference between NSW and HNSW graphs?

What parameter affects the memory usage of the HNSW index?

Which parameters can be modified after initializing the HNSW index?

Which parameter affects the recall performance in the HNSW index?

Which parameter has a significant effect on search time when using a large number of queries in the HNSW index?

What is the impact of increasing the efConstruction parameter in the HNSW index?

What is the main factor that affects the memory usage of the HNSW index?

Which parameter determines the number of layers in the HNSW graph construction?

What is the purpose of the probability skip list in the HNSW graph construction?

What does the parameter M_max0 represent in the HNSW graph construction?

Which technique heavily contributed to the development of HNSW?

Which library is used to implement the HNSW index in this text?

What is the main purpose of the 'zoom-out' phase in the greedy-routing search process in an NSW graph?

What is the main difference between HNSW and NSW graphs?

What is the purpose of the 'level multiplier' parameter in HNSW graph construction?

What is the stopping condition for the greedy-routing search process in an NSW graph?

What effect does decreasing the 'level multiplier' have on HNSW graph construction?

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