Some corrections and criticisms

Additions and Corrections

Some more space-group corrections.

A survey of approximately 100,000 entries in recent releases of the Cambridge Structural Database (CSD) has uncovered 156 crystal structures that were apparently described in inappropriate space groups. We have revised these space groups and prepared CIFs containing the new coordinates and brief comments describing the revisions.

IE evaluation: Criticisms and recommendations

We survey the evaluation methodology adopted in Information Extraction (IE), as defined in the MUC conferences and in later independent efforts applying machine learning to IE. We point out a number of problematic issues that may hamper the comparison between results obtained by different researchers. Some of them are common to other NLP tasks: e.g., the difficulty of exactly identifying the ef...

Comments on Pullum's Criticisms

We are reasonably convinced by the remarks in Pullum (p. 182) that the sluicing construction, on which the argument in Postal and Langendoen (p. 177) for the non-CFhood of English is based, is not, contrary to what is assumed there, subject to an intrasentential matching condition. Consequently, the argument does not go through. However, we believe that an analogous argument can be given, which...

Study Criticisms Unjustified

Pesticides on Human Subjects Concluded “No Effect,” Despite the Evidence The National Academy of Sciences (NAS) convened a panel of scientists in early 2003 to advise the U.S. Environmental Protection Agency (EPA) on the scientific and ethical issues surrounding the use of toxicologic studies conducted by third parties on human subjects (NAS 2003). These studies are generally sponsored by chemi...