The snippets from both of the engines are
comparable in length, on average about 140
characters. The DFVs contain key-phrases that are
extracted from the documents/snippets. However,
only those key-phrases that are within a so-called
"contextual window" are extracted. A contextual
window is a frame of a specified size (e.g., 100
characters) surrounding a key-phrase. Finally, only
the most prominent candidate key-phrases are
selected and stored in the DFVs.The snippets from both of the engines are
comparable in length, on average about 140
characters. The DFVs contain key-phrases that are
extracted from the documents/snippets. However,
only those key-phrases that are within a so-called
"contextual window" are extracted. A contextual
window is a frame of a specified size (e.g., 100
characters) surrounding a key-phrase. Finally, only
the most prominent candidate key-phrases are
selected and stored in the DFVs.The snippets from both of the engines are
comparable in length, on average about 140
characters. The DFVs contain key-phrases that are
extracted from the documents/snippets. However,
only those key-phrases that are within a so-called
"contextual window" are extracted. A contextual
window is a frame of a specified size (e.g., 100
characters) surrounding a key-phrase. Finally, only
the most prominent candidate key-phrases are
selected and stored in the DFVs.