Table 1 Notations
From: Salient context-based semantic matching for information retrieval
Notations | Description |
|---|---|
d | Single document |
q | Single query |
dj | The jth term in document |
qi | The ith term in query |
wi | The ith term vector in query |
wj | The jth term vector in document |
dl | Document length |
avdl | Average document length of indexed documents in data |
\(\mathbb {Q}\) | Set of query terms |
\(|\mathbb {Q}|\) | Number of query terms |
\(\mathbb {T}\) | Set of terms in the window |
\(|\mathbb {T}|\) | The window width |
N | Total number of indexed documents in data |
n | Number of indexed documents that contain a term |
IDF | Inverse document frequency |
tf | Within-document term frequency |
qtf | Within-query term frequency |
co | Within-document co-currency |
b1,k1,k3 | Parameters in BM25 |
a,b, α,β | Parameters in our model |