Move, Dither, Move, Dither. On the Structure of Random Walks and Single-Particle Trajectories

The Effect of Teachers' Follow-up Move Approach (F-move) on Iranian EFL Learners' Conversation Quality

The present paper investigated the effect of teacher’s follow‐up move approach on Iranian EFL learners’ conversation quality. Ninety students were selected in a senior high school in Poldokhtar, Iran. Through an oral test sixty out of ninety students whose scores were between one standard deviation (SD) above and below the mean were selected as the participants of the study. Then they were divi...

Dither and data compression

This correspondence presents entropy analyses for dithered and undithered quantized sources. Two methods are discussed that reduce the increase in entropy caused by the dither. The first method supplies the dither to the lossless encoding-decoding scheme. It is argued that this increases the complexity of the encoding-decoding scheme. A method to reduce this complexity is proposed. The second m...

Did Darwin dither?

" That's one of the things that really surprised us, " said Williams. " The tropics have very little variability from year to year in temperature; they are a very stable climatic zone. So species that live in these climates expect a limited degree of variability. " Other studies have suggested that the Amazon basin, an extremely biologically rich region, may be at increased risk of forest fires...

Hierarchical graph color dither

A theory of nonsubtractive dither

A detailed mathematical investigation of multi-bit quantizing systems using non-subtractive dither is presented. It is shown that by the use of dither having a suitably-chosen probability density function, moments of the total error can be made independent of the system input signal, but that statistical independence of the error and the input signals is not achievable. Similarly, it is demonst...