Abstract To solve the problem of ambiguous attribute selection in existing decision tree classification algorithms, a construction method based on information entropy, PCMIgr, is proposed. PCMIgr heuristic greedy strategy. At each node, when it necessary to select attributes for division, with highest gain ratio selected. The main innovation this that traditional optimized, and efficiency const...

Abstract Reduction of the numbers laboratory animals is one three pillars ethical animal research. Equivalently, information gain per should be maximized. A road towards this goal that barely taken in current research more accurate statistical modeling experiments. Here we show for a typical experiment (“open field test”) with outcomes are non-normally distributed count data, how can implemente...

We present an empirical investigation of various ways to automatically identify phrases in a tagged corpus that are useful for dialogue act tagging. We found that a new method (which measures a phrase’s deviation from an optimally-predictive phrase), enhanced with a lexical filtering mechanism, produces significantly better cues than manually-selected cue phrases, the exhaustive set of phrases ...

We present a unified approach to constructing linear space-time (ST) block codes based on unitary constellation-rotating (ST-CR) precoders. We show that with an arbitrary number of M -transmit and N -receive antennas, ST-CR precoders achieve 1 symbol/sec rate and enjoy maximum diversity gainMN over both quasi-static and fast fading channels. We also compare real with complex rotations to deline...

With the growth of the Internet, the field of Information Retrieval (IR) has gained increasing importance. Quick, easy, and accurate information access is the deciding factor between successful search companies and their rivals. Likewise, the manipulation of IR systems for ulterior motives, known as adversarial IR, is just as important, as it can turn the successes of a search strategy against ...