document descriptors ( keywords ) </term> than single <term> words </term> are . This leads
from individual <term> phrases </term> rather than from the <term> weighted sum </term> of a <term>
becomes a crucial issue recently . Rather than using <term> length-based or translation-based
<term> kanji-kana characters </term> is greater than that of <term> erroneous chains </term> . From
theoretical accounts actually have worse coverage than accounts based on processing . Finally
hide detail