The authors' prior work using an automated UMLS document indexing system has been encouraging but has been affected by the generally low indexing precision of such systems.
CTI index with a precision of 10 digits after decimal point can be used in databases with millions of compounds.
refers to the "width of angles" as an index of precision, i.e., the wider the angle, the greater the imprecision.
Because of the semantic ambiguities involved in free-text indexing, however, the precision of the key-word retrieval technique that is, the percentage of relevant documents correctly retrieved from a collection is far from ideal, and various modifications have been introduced to improve it.
And the F1-Measurement represents the harmonic mean between the index of Precision and Recall.
For the correlation approach, the residual error observed demonstrates that a precision of index (RIU) sensing down 2 × 10−5 RIU can be achieved.
The effect on the categorization precision of indexing either the patent claims or the patent descriptions is reported.
For each experiment, the small variability between individual indices also highlights the precision of the results and further validates the method.
The precision of this index was better than that of others two indexes.
To increase the level of precision of the index obtainable at state level analysis, sample sizes in states with proportional allocation less than 250 were boosted to 250.
