pathological

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pathological

(less commonly), pathologic
1. of or relating to pathology
2. relating to, involving, or caused by disease
3. Informal compulsively motivated

pathological

(1)
[scientific computation] Used of a data set that is grossly atypical of normal expected input, especially one that exposes a weakness or bug in whatever algorithm one is using. An algorithm that can be broken by pathological inputs may still be useful if such inputs are very unlikely to occur in practice.

pathological

(2)
When used of test input, implies that it was purposefully engineered as a worst case. The implication in both senses is that the data is spectacularly ill-conditioned or that someone had to explicitly set out to break the algorithm in order to come up with such a crazy example.

pathological

(3)
Also said of an unlikely collection of circumstances. "If the network is down and comes up halfway through the execution of that command by root, the system may just crash." "Yes, but that's a pathological case." Often used to dismiss the case from discussion, with the implication that the consequences are acceptable, since they will happen so infrequently (if at all) that it doesn't seem worth going to the extra trouble to handle that case (see sense 1).
References in periodicals archive ?
Little wonder why so many of us retreat to sacred reservations where identities are fixed and communities are pathologically safe and secure behind heavy gates
The violent and histrionic displays in which both Heathcliff and Cathy engage would be seen not as Byronic sexual displays but rather as infantile tantrums pathologically (and lethally) affiliated with adult power.
And if you've seen Barcelona or Metropolitan you'll know what to expect - pathologically over-educated New Yorkers who talk and talk in perfectly grammatical sentences.
What de Mille had--perhaps she inherited it from that famous uncle of hers--was a flair for show business, an instinct for theatricality, a gift for the honestly cheap, Loring's Billy is a mythical character in a mythical land, not the gal next door getting her feller; and, while Tudor's Hagar may be psychologically correct, and before love's redemption, pathologically twisted, she'll never have the same tabloid appeal as Lizzie the ax murderer.
It is believed that, deep inside, pathologically, the Japanese knows that enduring hard life at home will eventually pay off in a big way.
Lycera's bioenergetics program is focused on developing orally available small molecules that exploit bioenergetic abnormalities in pathologically activated lymphocytes and result in the selective silencing of these cells, while keeping healthy immune cells intact.
2)--with pathologically proven organized hematoma of the maxillary sinus.
LISBON - Nearly 30% of patients diagnosed with a first pathologically confirmed basal cell carcinoma will develop one or more additional primary basal cell carcinomas within 5 years.
Significantly, when someone tries to modulate his or her worry, "the interplay between these two regions is different in healthy people and in pathologically anxious people.
The authors, led by Dr Lawrence Lam from the School of Medicine in Sydney, Australia, wrote: "This result suggests that young people who are initially free of mental health problems but use the internet pathologically could develop depression as a consequence.
It follows four people as their destinies collide on the gritty streets of LA - an overwhelmed erotic dancer (Biel), a grieving husband (Whitaker), a terminally ill ex-con (Liotta) and a pathologically shy mortician (Redmayne).
A PATHOLOGICALLY jealous man who stabbed his teenage stepson to death must serve at least 16 years behind bars, a judge said yesterday.