Based on the results of running the function with the given inputs, here is a description of the function implemented by f(x):

[DESCRIPTION]: The function seems to be selective for concepts related to efficiency and computing. It returns higher values (closer to 1) for words like "computing" and "efficiency", suggesting a strong association with these concepts. It also shows some selectivity for the concept of "excavation", but to a lesser degree. Other words like "artifacts", "Hamlet", "CEO", "reporting", "democracy", "voice actors", and "outdoors" have lower values (closer to 0), indicating weaker or no association with the concept described by the function. 

It is important to note that this description is based on the tested inputs and their corresponding output values. To further understand the function behavior, additional tests with a wider range of words and concepts may be necessary.