Dependency parsers are usually evaluated on attachment accuracy. Whilst easily interpreted, the metric does not illustrate the cascading impact of errors, where the parser chooses an incorrect arc, and is subsequently forced to choose further incorrect arcs elsewhere in the parse. We apply arc-level constraints to MSTparser and ZPar, enforcing the correct analysis of specific error classes, whi...

Machine code disassembly routines form a fundamental component of software systems that statically analyze or modify executable programs. The task of disassembly is complicated by indirect jumps and the presence of nonexecutable data—jump tables, alignment bytes, etc.—in the instruction stream. Existing disassembly algorithms are not always able to cope successfully with executable files contai...

BACKGROUND Hospital pharmacies dispense large numbers of medication doses for hospitalized patients. A study was conducted at an academic tertiary care hospital to characterize the incidence and severity of medication dispensing errors in a hospital pharmacy. METHODS Direct observation of dispensing processes was undertaken to determine presence of errors with review by a physician panel to d...

In this work channel is modelled with synchronization errors due to the mismatches between the transmitter and receiver clocks using bit drop-outs (deletions).[3] Each bit is received independently in the binary symmetric channel with error probability P where each bit is erased, Shannon invented the fundamental results through the development as well as analysis of low density parity check cod...

Polynucleotide templates were copied by avian myeloblastosis virus DNA polymerase ("reverse transcriptase") and the frequency and distribution of errors were determined. The error rate with [r(pA)2500-d(pT)12-18] template-initiator under a variety of conditions was approximately 1/600, i.e. one incorrect dCMP incorporated for 600 correct dTMP polymerized. Addition of the metal chelator o-phenan...

Content word deletion has widely been identified as a common error in statistical machine translation systems. We refer to a translation error as “content word deletion” when a content word appears in the reference translation of some sentence, but is absent from the system output translation of that sentence. For our purposes, the term “content word” does not have a precise definition, but rep...

BACKGROUND The activity of angiotension converting enzyme (ACE; OMIM: 106180) in different brain regions of patients with schizophrenia changed, suggesting a possible involvement of ACE in psychiatric disorders. Genetic polymorphism of insertion/deletion (I/D; dbSNP rs4646994) in the gene encoding ACE has been well defined. METHODS The present case-control study was performed on 363 (268 male...

This paper presents a new algorithm for correcting incorrect projections of a polyhedral scene. Such projections arise in applications where an image of a polyhedral world is taken and its edges and vertices are extracted. Along the way, the true positions of the vertices in the 2D projection are perturbed due to digitization errors and the preprocessing. As most available algorithms for recons...

This article has summarized parts of certain publica­tions about changes of hematopoietic elements, specially erythroid, during embryonic and fetal to the third postnatal life. The main purpose of this article is to familiarize medical students with the physiological characteristics of the blood system, chiefly in the first trimenon of postnatal life.  It is also aimed to prevent many incorrec...