return sts.retrieveImagesInUserDatasetsNotInCategoryGroup(group);
return sts.retrieveImagesInUserDatasetsNotInCategoryGroup(group, ids);
    List retrieveImagesInUserDatasetsNotInCategoryGroup(CategoryGroupData group)        throws DSAccessException    {        try {             SemanticTypesService sts = registry.getSemanticTypesService();            return sts.retrieveImagesInUserDatasetsNotInCategoryGroup(group);        } catch(DSOutOfServiceException dsose) {            ServiceActivationRequest             request = new ServiceActivationRequest(                                ServiceActivationRequest.DATA_SERVICES);            registry.getEventBus().post(request);        }        return new ArrayList();    }