Sentence examples for occurrence position from inspiring English sources
(4) We also take two new features of phrases, phrase frequency and first occurrence position, into consideration to improve the performance of keyphrase extraction.
Following closely behind is PTF-POS, which implies phrase frequency and first occurrence position are two very significant features in keyphrase extraction and should not be ignored.
end{aligned} (8)We further embed the frequency and the first occurrence position of phrases, denoted by ({mathrm {tf}}(p_i)) and ({mathrm {pos}}(p_i),) respectively, into Eq. 8 to improve the quality of phrase scores, as shown in Eq. 9.
By integrating the semantic document keyterm graph extracted from the knowledge graph with two widely used phrase features, phrase frequency and the first occurrence position, our method improves the performance of keyphrase extraction a lot.
Here, each column of the matrix M is a unit vector, in which only one element is 1 and the others are all 0. We can see from Table 1 that the occurrence position of all kinds of dipeptides along the protein sequence is contained in the column of the matrix M. Meanwhile, the row of the matrix M denotes the ith kind of dipeptide appearing at the jth position within the protein sequence.
The proposed method extracts similar segment pairs in a music piece by segmental continuous dynamic programming and can identify the location of each music piece according to the information of occurrence positions of the similar segment pairs.
Risotto does not output occurrence positions, but only their number.
For most Tompa data, the distribution of motif in each sequence makes it difficult to report the motif occurrence positions.
The entries in the database are divided into two types, namely, the occurrence positions of oligonucleotides and the frequencies of oligonucleotides.
In a given RNA sequence, the probable motif occurrence positions are assumed to be uniformly distributed only over the start positions of all the potential candidates extracted from the sequence instead of all positions as before.
Positional distribution of a cis-regulatory element in ABA-regulated genes was obtained by shifting a window of the same length to scan the promoter region of each gene, and recording the occurrence positions.
