However, in the gradient of the log-likelihood, there are terms that are intractable, that is, the ones that compute the expectations over the joints of variables v and h.
We're accustomed to hearing that our problems are intractable, that social programs inevitably disappoint.
At the foot of the main escarpment, on the Sula Mountain plateau, and elsewhere an iron-rich laterite crust forms a surface that is intractable for agricultural production.
In general, it is intractable in dynamic domains that include many objects and relationships.
This yields that it is intractable to obtain the insight.
By applying stochastic shortest path method, we showed that it is intractable to make optimal coding decisions in the presence of random packet erasures.
Despite the success achieved by standard intelligent methods, it is becoming evident that it is intractable to analyze the large-scale omics data with only single standard intelligent approaches.
In an amplify-and-forward cooperative network, a closed-form expression of the a priori distribution of the complex-valued gain of the global relay channel is intractable, so that a priori information is often not exploited for estimating this gain.
The fact that CCP is intractable (coNP-complete) means that there exist difficult problem instances that take exponential time in the worst case, while efficient algorithms for CCP exist when the number of policies is not too large.
We have a crisis in Yemen that is intractable and a burgeoning crisis on Egypt, and those are to my mind far more important than any obiter dicta you may have disinterred from 30 years of journalism".
