However, the multi-dimensional state variables resulted from complex exogenous stochastic information make the SDP problem computationally intractable using standard value iteration algorithms.
However, in the proposed trellises the states number increases with the source symbol sequence length L, and the source alphabet size U. Thus, the decoding complexity becomes intractable for large values of L and U. Recently, some contributions considered JSC decoding methods including a Low-Density Parity-Check Code (LDPC) for channel coding with application to image transmission.
This level of return on investment offers little hope of reliable and economical techniques appropriate to conservation issues in the many threatened taxa which are experimentally intractable, of low economic value or have limited charismatic resonance with the public.
Furthermore, a categorization approach assumes that the threshold values are intractable, when commentary has begun to suggest that the reference ranges for optimal benefit may be too low [27] and depend on the disease or population characteristics being studied.
Enumerative methods are practically intractable even for small values of k.
Convergence of the MFxLMS algorithm when noise is present in the system becomes mathematically intractable due to the absolute value blocks.
While phenotype sequencing can be useful for well-established microbial systems such as E. coli, it may have special value for genetically intractable organisms like Chlamydia, an important human pathogen.
Based on an understanding of the activating movements of class I cytokine receptors as proposed in the present study, it should be possible to progress to receptor-specific small agonists and antagonists of therapeutic value for otherwise intractable disorders.
Still others note intractable differences in the way women value their lives and themselves: complex questions of culture, biology, family and what success (and power) really means.
However, though talks may eventually break down on these intractable points, both leaders see the value of speaking the language of peace for short-term gain.
