The usefulness of uselessness

The Uselessness of Public Use

On the uselessness of quantum queries

Given a prior probability distribution over a set of possible oracle functions, we define a number of queries to be useless for determining some property of the function if the probability that the function has the property is unchanged after the oracle responds to the queries. A familiar example is the parity of a uniformly random Boolean-valued function over {1, 2, . . . , N}, for which N − 1...

004 Op: the Use of Uselessness: Collaborative Failures as Potential

A Theoretical Analysis of the “Uselessness” of White Knights

The formal analysis of domain-independent planning has been largely influenced by David Chapman's system Tweak, built upon a modal truth criterion (MTC), which is proved correct and complete. However, D. Chapman ends his work arguing without any formal proof that the white knight technique used in his MTC is “pretty useless” (a fact informally accepted in the planning community). Here, it is fo...

the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...