improve automatic error detection in arabic handwriting recognition

... Computational Linguistics Using Deep Morphology to Improve Automatic Error Detection in Arabic Handwriting Recognition Nizar Habash and Ryan M. Roth Center for Computational Learning Systems Columbia ... identifying semanti- cally inconsistent error words. In the future, we plan to continue improving our system by considering smarter trainable combina- tion techniques and by separating the training ... El-Sana, and Nizar Habash. 2006. Online Arabic handwriting recognition using Hid- den Markov Models. In The 10th International Workshop on Frontiers in Handwriting Recognition (IWFHR’10), La Baule,...

Ngày tải lên: 17/03/2014, 00:20

... to detecting these two kinds of errors. 3.2 Detection of omission-type errors Omission-type errors were detected by estimat- ing whether or not a necessary word string was missing in front ... by conducting experiments using our learner corpus, which contains information on learners’ errors. 1 Introduction One of the most important things in keeping up with our current information-driven ... article. By referring to information on the corrected form indicated in an error tag, the sys- tem can convert erroneous parts into corrected equivalents. 3 Error detection method In this section,...

Ngày tải lên: 20/02/2014, 16:20

... 2728-9Dep 100080, Beijing, P.R.China 100101, Beijing, P.R.China 100080, Beijing, P.R.China hao.yan@mail.ia.ac.cn mimicat0401@sina.com zengguang.hou@mai.lia.ac.cn ABSTRACT In this paper, one ... network is introduced into the further classification of the text blocks and the non-text blocks in video frames. The idea of bootstrap is introduced into the training of the ANN, thus improving the ... sample set is originally a very small set. Then the Gabor features of these blocks are input to train the BP network. During the training process, the bootstrap is introduced into our method....

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... packet transmitted in mini-cycle i is received in mini-cycle (i+1) and increases cwnd by one MSS. Further- more, ACKs for consecutive packets released in mini-cycle i arrive in intervals corresponding the service ... Environments Routing Algorithms There are several types of routing algorithms available for performing routing in multicast environ- ment. Some of the non-multicast specific include flooding, improved flooding ... (OSPF) link state protocol. It uses Internet Group Management Protocol (IGMP) to monitor and maintain group memberships within the domain and OSPF link state advertisements to maintain a view...

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... 2008 Nosubjectivecomplaintsofmemorydecit.Nomemorydecitevidentonclinicalinterview. Subjectivecomplaintsofmemorydecit,mostfrequently in followingareas:(a)forgettingwhereonehasplaced familiarobjects;(b)forgettingnamesoneformerlyknewwell.Noobjectiveevidenceofmemorydeciton clinicalinterview.Noobjectivedecits in employmentorsocialsituations.Appropriateconcernwithrespectto symptomatology. Earliestclear-cutdecits.Manifestations in morethanoneofthefollowingareas:(a)patientmayhave becomelostwhentravelingtoanunfamiliarlocation;(b)co-workersbecomeawareofpatient'srelativelypoor performance;(c)wordandnamendingdecitbecomesevidenttointimates;(d)patientmayreadapassageor abookandretainrelativelylittlematerial;(e)patientmaydemonstratedecreasedfacility in rememberingnames uponintroductiontonewpeople;(f)patientmayhavelostormisplacedanobjectofvalue;(g)concentration decitmaybeevidentonclinicaltesting.Objectiveevidenceofmemorydecitobtainedonlywithanintensive interview.Decreasedperformance in demandingemploymentandsocialsettings.Denialbeginstomanifest in thepatient.Mildtomoderateanxietyaccompaniessymptoms. Clear-cutdecitoncarefulclinicalinterview.Decitsmanifest in followingareas:(a)decreasedknowledgeof currentandrecentevents;(b)mayexhibitsomedecit in memoryofonespersonalhistory;(c)concentration decitelicitedonserialsubtractions;(d)decreasedabilitytotravel,handlenances,etc.Frequentlynodecit in followingareas:(a)orientationtotimeandplace;(b) recognition offamiliarpersonsandfaces;(c)abilitytotravel tofamiliarlocations.Inabilitytoperformcomplextasks.Denialisdominantdefensemechanism.Flatteningof affectandwithdrawalfromchallengingsituationsfrequentlyoccur. Patientcannolongersurvivewithoutsomeassistance.Patientisunableduringinterviewtorecallamajor relevantaspectoftheircurrentlives,e.g.,anaddressortelephonenumberofmanyyears,thenamesofclose familymembers(suchasgrandchildren),thenameofthehighschoolorcollegefromwhichtheygraduated. Frequentlysomedisorientationtotime(date,dayofweek,season,etc.)ortoplace.Aneducatedpersonmay havedifcultycountingbackfrom40by4sorfrom20by2s.Personsatthisstageretainknowledgeofmany majorfactsregardingthemselvesandothers.Theyinvariablyknowtheirownnamesandgenerallyknow theirspouse’sandchildren’snames.Theyrequirenoassistancewithtoiletingandeating,butmayhavesome difcultychoosingtheproperclothingtowear. Mayoccasionallyforgetthenameofthespouseuponwhomtheyareentirelydependentforsurvival.Willbe largelyunawareofallrecenteventsandexperiences in theirlives.Retainsomeknowledgeoftheirpastlives butthisisverysketchy.Generallyunawareoftheirsurroundings,theyear,theseason,etc.Mayhavedifculty countingfrom10,bothbackwardand,sometimes,forward.Willrequiresomeassistancewithactivitiesofdaily living,e.g.,maybecomeincontinent,willrequiretravelassistancebutoccasionallywillbeabletotravelto familiarlocations.Diurnalrhythmfrequentlydisturbed.Almostalwaysrecalltheirownname.Frequentlycontinue tobeabletodistinguishfamiliarfromunfamiliarpersons in theirenvironment.Personalityandemotional changesoccur.Thesearequitevariableandinclude:(a)delusionalbehavior,e.g.,patientsmayaccusetheir spouseofbeinganimpostor,maytalktoimaginarygures in theenvironmentortotheirownreection in themirror;(b)obsessivesymptoms,e.g.,personmaycontinuallyrepeatsimplecleaningactivities;(c)anxiety symptoms,agitationandevenpreviouslynonexistentviolentbehaviormayoccur;(d)cognitiveabulia,i.e.,lossof willpowerbecauseanindividualcannotcarryathoughtlongenoughtodetermineapurposefulcourseofaction. Allverbalabilitiesarelostoverthecourseofthisstage.Frequentlythereisnospeechatall,onlyunintelligible utterancesandrareemergenceofseeminglyforgottenwordsandphrases.Incontinentofurine,requires assistancetoiletingandfeeding.Basicpsychomotorskills,e.g.,abilitytowalk,arelostwiththeprogression ofthisstage.Thebrainappearstonolongerbeabletotellthebodywhattodo.Generalizedrigidityand developmentalneurologicreexesarefrequentlypresent. Level ... Adverseeffectsofmemantinemayinclude:fatigue,pain,dizziness,constipation,anxietyand hallucinations. Table 4. Starting dose and titration schedule of memantine Drug Starting Titration Dose Increase ... memantine 5 mg 4 wks 5 mg 10 mg b.i.d. Potential Drug Interactions MajordruginteractionsassociatedwithmemantineincludedrugswhichincreasethepH in urine(e.g. carbonicanhydraseinhibitors).Exercisecautionwhenprescribingmemantinewithotherdrugswhich undergo...

Ngày tải lên: 13/02/2014, 18:20

... 4) 10.28 Find the minimum Hamming distance of the coding scheme in Table 10.1. Solution We first find all Hamming distances. Example 10.5 The d min in this case is 2. 10.45 4. An error changes ... odd number of errors. Example 10.12 (continued) 10.4 In a single-bit error, only 1 bit in the data unit has changed. Note 10.27 The minimum Hamming distance is the smallest Hamming distance ... to error detection and correction. indirectly, to error detection and correction. Types of Errors Redundancy Detection Versus Correction Forward Error Correction Versus Retransmission Coding Modular...

Ngày tải lên: 16/02/2014, 20:20

... rules from the train- ing text. The DR-DA matrix is created after cluster- ing the sentences into different dialogue acts (DAs), counting the occurrences the DRs in DA, and intro- ducing an entropy-based ... can see that the inference of the user’s overall intention via DA detection is an important task in SDS. Figure 1 depicts the training and test phases of the SLU module and the DM module in our system. The ... the cor- responding named entity classes (NEC) in order to obtain a compact feature set. 2 Models for Dialogue Act Detection Referring to the SDS depicted in Figure 1, the DA detection can be...

Ngày tải lên: 20/02/2014, 05:20

... satirical article beginning Missing Brazilian balloonist Padre spotted strad- dling Pink Floyd flying pig. We include both a continuous representation of v for each article, in the form of log(v(E)), ... semantics. One common device in satire news articles is absurdity, in terms of describing well-known indi- viduals in unfamiliar settings which parody their viewpoints or public profile. We attempt ... selecting a newswire document; (2) hand-picking a key individual, institution or event from the selected document, and using it to for- mulate a phrasal query (e.g. Bill Clinton); (3) us- ing the...

Ngày tải lên: 20/02/2014, 09:20

... through- put increase for the same 8× increase in nodes. To further ascertain the impact of the individual design elements, we executed TATP again using the HR+ design but alternatively removing: (1) ... scheduling problems with earliness and tardiness costs. In Principles and Practice of Constraint Programming, volume 2833, pages 817–821, 2003. [19] S. Duan, V. Thummala, and S. Babu. Tuning database ... procedure routing delivering 54.1% over the baseline approach (that otherwise coincide with the one found by SCH), secondary indexes contribute 69.6%, and combined they de- liver a 3.5× improvement....

Ngày tải lên: 07/03/2014, 14:20

... re- sult of human annotation errors. Almost two-thirds of these errors involve incorrect rationality assign- ment and almost one-third involved incorrect gen- der. Incorrect number assignment ... Jeff Reynolds. 2004. Identifying Broken Plurals in Unvowelised Arabic Text. In Dekang Lin and Dekai Wu, editors, Proceedings of EMNLP 2004, pages 246– 253, Barcelona, Spain, July. Nizar Habash and ... 2011. Improving Arabic Dependency Parsing with Form- based and Functional Morphological Features. In Pro- ceedings of the 49th Annual Meeting of the Associ- ation for Computational Linguistics...

Ngày tải lên: 07/03/2014, 22:20