Sentence examples for occur previously from inspiring English sources

Signature-based techniques, which exploit a prior knowledge base of anomalous patterns, are able to effectively detect them but fail in identifying anomalies which did not occur previously.

It is also assumed that these contracts occur previously to the beginning of the distribution of ads. Figure 1 depicts the flow of ad distribution in online marketing.

A biological invasion, i.e. when a new species arrives, establishes and spreads in an environment where it did not occur previously, is basically a natural process (Crooks 2002).

The prevalence of this pathway suggests that C. beijerinckii NCIMB 8052 is accumulating proline intracellularly to act as an osmoregulator, as was shown to occur previously in both other bacteria, particularly Gram-positive strains [ 20], and in yeast [ 21, 22].

"It's a trend that has occurred previously," Parseghian said.

It was the sixth August day on which the temperature reached 95 or more -- a string that had not occurred previously since 1955, when there were seven.

Ramping up of contingency plans for a crisis on China's border with the DPRK has occurred previously when Beijing's analysts have felt collapse may be imminent.

Judge Posner's encyclopedic review of the 9/11 report completely misses one point: it was not "almost impossible to take effective action to prevent something that hasn't occurred previously," as Posner asserts.

It was the fourth straight start in which Santana (5-5) allowed four or more runs, tying the longest such streak of his career, which occurred previously in 2004.

In the late 1970s, however, new research data indicated that similar expansions, or blooms, had occurred previously, followed by periods of decline.

Commercial harvest occurred previously in BRT but was banned by the Forest Department after 2004.