Talk:Document-term matrix

I need some help here:

Do you think I focused to much one vectors?

We definitely need more applications. Kh251

I don't agree with the last changes. Performing eigenvalue decomposition reduce the size of the matrix, thus improves speed, but decreases accuracy. I know I might be wrong, but I'd like to understand... KH251 09:32, 21 July 2005 (UTC)[reply]

Not necessarily: what you say is one valid interpretation of the reduction, but the reduction can also be interpreted as creating a "better" matrix, since the operation tends to "soften" the representation and reduce possible noise.

Also, it's not always true that this makes it easier on the computational side; for instance, LSA is rather heavier than just just leaving the thing alone (I have a reference for that somewhere, I am just rather busy at the moment...). Hope it helps ! Cheers ! Rama 12:14, 21 July 2005 (UTC)[reply]