32. The method of claim 31 , further comprising: forming a subgraph from said second hit list and all links among the documents in said second hit list, obtaining restricted link analysis scores LA (sub) for each of said documents in said second hit list by performing link analysis on the subgraph, and said step of calculating an importance score including calculating a second importance score W for each document, wherein 
 W=a ( TR )+ b ( LA (sub))+ c ( FQS ) TR=text relevance score from text analysis, LA (sub) subgraph link analysis score, FQS=file quality score, and a, b, and c are tuning parameter weights.
32. The method of claim 31 , further comprising: forming a subgraph from said second hit list and all links among the documents in said second hit list, obtaining restricted link analysis scores LA (sub) for each of said documents in said second hit list by performing link analysis on the subgraph, and said step of calculating an importance score including calculating a second importance score W for each document, wherein 
 W=a ( TR )+ b ( LA (sub))+ c ( FQS ) TR=text relevance score from text analysis, LA (sub) subgraph link analysis score, FQS=file quality score, and a, b, and c are tuning parameter weights. 33. The method of claim 32 , further comprising: adjusting any of the weights a, b, or c.