134 papers:
- CASE-2015-KouiderHOO #approach #graph #integer #linear #scheduling #source code
- Mixed integer linear programs and tabu search approach to solve mixed graph coloring for unit-time job shop scheduling (AK, HAH, SO, AO), pp. 1177–1181.
- CASE-2015-MonchY #constraints #parallel #scheduling
- Scheduling jobs on parallel machines with qualification constraints (LM, CY), pp. 657–658.
- HT-2015-LeeHKGH #on the #recommendation
- On Recommending Job Openings (YCL, JH, SWK, SG, JYH), pp. 331–332.
- SIGMOD-2015-ClinkenbeardN #communication #scheduling
- Job Scheduling with Minimizing Data Communication Costs (TC, AN), pp. 2071–2072.
- VLDB-2015-Liroz-GistauAV #execution #named #parallel #performance
- FP-Hadoop: Efficient Execution of Parallel Jobs Over Skewed Data (MLG, RA, PV), pp. 1856–1867.
- MSR-2015-HauffG #developer #git
- Matching GitHub Developer Profiles to Job Advertisements (CH, GG), pp. 362–366.
- DHM-EH-2015-YamamotoOGKHBA #research
- Research of Work Climate at Nursing Home — From Job Separation and Management Capability Point (AY, TO, AG, NK, HH, HCBJ, TA), pp. 512–523.
- ICEIS-v1-2015-AwasthiLK #algorithm #linear #problem #sequence #strict
- Un-restricted Common Due-Date Problem with Controllable Processing Times — Linear Algorithm for a Given Job Sequence (AA, JL, OK), pp. 526–534.
- ICEIS-v1-2015-NouriDG #algorithm #flexibility #multi #problem #scheduling #search-based
- Genetic Algorithm Combined with Tabu Search in a Holonic Multiagent Model for Flexible Job Shop Scheduling Problem (HEN, OBD, KG), pp. 573–584.
- RecSys-2015-Abel #recommendation
- We Know Where You Should Work Next Summer: Job Recommendations (FA), p. 230.
- SIGIR-2015-MalherbeCB #categorisation #order #performance
- Bringing Order to the Job Market: Efficient Job Offer Categorization in E-Recruitment (EM, MC, AB), pp. 1101–1104.
- CASE-2014-HaoLGC #effectiveness #flexibility #markov #network #nondeterminism #problem #scheduling
- An effective Markov network based EDA for flexible job shop scheduling problems under uncertainty (XCH, LL, MG, CFC), pp. 131–136.
- CASE-2014-MaTLZLD #algorithm #hybrid #optimisation #scheduling
- A hybrid particle swarm optimization and simulated annealing algorithm for job-shop scheduling (PCM, FT, YL, LZ, HXL, ZD), pp. 125–130.
- DATE-2014-KumarYBT #distributed #effectiveness #named
- COOLIP: Simple yet effective job allocation for distributed thermally-throttled processors (PK, HY, IB, LT), pp. 1–4.
- VLDB-2014-ShiZLCLW #named #optimisation #pipes and filters #tool support
- MRTuner: A Toolkit to Enable Holistic Optimization for MapReduce Jobs (JS, JZ, JL, ZC, SL, CW), pp. 1319–1330.
- VLDB-2014-ZhangLTYTX #fault tolerance #internet #named #resource management #scheduling
- Fuxi: a Fault-Tolerant Resource Management and Job Scheduling System at Internet Scale (ZZ, CL, YT, RY, HT, JX), pp. 1393–1404.
- ITiCSE-2014-EricssonW #mining #what
- Mining job ads to find what skills are sought after from an employers’ perspective on IT graduates (ME, AW), p. 354.
- ICALP-v1-2014-HohnMW #cost analysis #how #scheduling
- How Unsplittable-Flow-Covering Helps Scheduling with Job-Dependent Cost Functions (WH, JM, AW), pp. 625–636.
- ICALP-v1-2014-MakarychevP #scheduling
- Precedence-Constrained Scheduling of Malleable Jobs with Preemption (KM, DP), pp. 823–834.
- DHM-2014-ButlewskiMC #development #safety
- Non-financial Factors of Job Satisfaction in the Development of a Safety Culture Based on Examples from Poland and Romania (MB, AM, RC), pp. 577–587.
- DHM-2014-HuangLCCC #performance #quality
- The Influence of Shift Workers Sleeping Quality upon Job Performance (YCH, FLL, HCC, CCC, CLC), pp. 254–262.
- HPDC-2014-WangZCLR #generative
- Next generation job management systems for extreme-scale ensemble computing (KW, XZ, HC, ML, IR), pp. 111–114.
- CASE-2013-FerreiraR #comparison #design #layout #performance #simulation #using
- Performance comparison of the virtual cell layout with cellular and job shop configurations using simulation and design of experiments (JCEF, PAR), pp. 795–800.
- CASE-2013-JiaJL #algorithm #scheduling
- A job-family-oriented algorithm for re-entrant batch processing machine scheduling (WJ, ZJ, YL), pp. 1022–1027.
- VLDB-2013-Elmeleegy #named #optimisation
- Piranha: Optimizing Short Jobs in Hadoop (KE), pp. 985–996.
- CHI-2013-RazaHTPRSR #speech
- Job opportunities through entertainment: virally spread speech-based services for low-literate users (AAR, FuH, ZT, MP, SR, US, RR), pp. 2803–2812.
- CSCW-2013-BurkeK #difference #facebook #using
- Using facebook after losing a job: differential benefits of strong and weak ties (MB, RK), pp. 1419–1430.
- DUXU-WM-2013-Kim13a #analysis #query
- Analysis of Query Entries of a Job Search Engine (YK), pp. 203–211.
- DUXU-WM-2013-KondoK #development #evaluation #image #interactive #prototype #using #visual notation
- Trial of Diagnostic to Find Preferable Job Using the Visual Image Information Interaction: Prototype Development and Evaluation in Global Human Resources Matching Site (AK, NK), pp. 525–532.
- VISSOFT-2013-PauwWB #distributed #visualisation
- Visualizing jobs with shared resources in distributed environments (WDP, JLW, AB), pp. 1–10.
- KDD-2013-ChengXCACG #mining #named #realtime #social #social media
- JobMiner: a real-time system for mining job-related patterns from social media (YC, YX, ZC, AA, ANC, SG), pp. 1450–1453.
- ICLP-J-2013-Schwitter #challenge #natural language
- The jobs puzzle: Taking on the challenge via controlled natural language processing (RS), pp. 487–501.
- CASE-2012-BilykM #heuristic #parallel #problem #search-based
- Variable neighborhood search-based subproblem solution procedures for a parallel shifting bottleneck heuristic for complex job shops (AB, LM), pp. 419–424.
- CASE-2012-YiLTW #framework #scheduling
- A new operational framework to job shop scheduling for reducing carbon emissions (QY, CL, YT, QW), pp. 58–63.
- SIGMOD-2012-BrunoAKSWZ #optimisation
- Recurring job optimization in scope (NB, SA, SK, BS, MCW, JZ), pp. 805–806.
- SIGMOD-2012-ElghandourA #named #pipes and filters #reuse
- ReStore: reusing results of MapReduce jobs in pig (IE, AA), pp. 701–704.
- VLDB-2012-ElghandourA #named #pipes and filters #reuse
- ReStore: Reusing Results of MapReduce Jobs (IE, AA), pp. 586–597.
- VLDB-2012-KhoussainovaBS #debugging #named #performance #pipes and filters
- PerfXplain: Debugging MapReduce Job Performance (NK, MB, DS), pp. 598–609.
- VLDB-2012-ShinnarCHS #in memory #named #performance
- M3R: Increased performance for in-memory Hadoop jobs (AS, DC, BH, VAS), pp. 1736–1747.
- SAC-2012-MoretBATMF #validation
- Double dip map-reduce for processing cross validation jobs (DM, KB, EA, JT, RM, JVF), pp. 473–477.
- HPDC-2012-LuckowSWMMJ #towards
- Towards a common model for pilot-jobs (AL, MS, OW, AM, SM, SJ), pp. 123–124.
- VLDB-2011-PansareBJC #online #pipes and filters #scalability
- Online Aggregation for Large MapReduce Jobs (NP, VRB, CJ, TC), pp. 1135–1145.
- STOC-2011-Svensson
- Santa Claus schedules jobs on unrelated machines (OS), pp. 617–626.
- HCD-2011-YajimaSY #comprehension #problem #visualisation
- Understanding the Business Realities: An Interview Technique Which Can Visualize the Job Problems (AY, YS, TY), pp. 449–457.
- HCI-UA-2011-EverardJM #learning #question #student #what
- Are MIS Students Learning What They Need to Land a Job? (AE, BMJ, SM), pp. 235–236.
- HCI-UA-2011-Loiacono-MelloDTP #case study #generative #why
- Why Virtual Job Recruitment Is Not Well Accepted by Generation Y? — A Case Study on Second Life (ETLM, SD, BT, OVP), pp. 245–254.
- HIMI-v2-2011-Saitoh #design
- Information Technology Services Indutry and Job Design (YS), pp. 301–304.
- RecSys-2011-PaparrizosCG #recommendation
- Machine learned job recommendation (IKP, BBC, AG), pp. 325–328.
- CASE-2010-DriesselHMS #architecture #assessment #heuristic #parallel #performance #scheduling
- A parallel shifting bottleneck heuristic for scheduling complex job shops: Architecture and performance assessment (RD, UH, LM, WS), pp. 81–86.
- CHI-2010-DornG #design #learning #programming #web
- Learning on the job: characterizing the programming knowledge and learning strategies of web designers (BD, MG), pp. 703–712.
- CHI-2010-ShastriFBTP #process
- O job can you return my mojo: improving human engagement and enjoyment in routine activities (DS, YF, RB, PT, IP), pp. 2491–2498.
- ICEIS-ISAS-2010-KikuchiMAM #mining #process
- Process Mining for Job Nets in Integrated Complex Computer Systems (SK, YM, MA, SM), pp. 5–12.
- ICEIS-J-2010-KikuchiMAM10a #enterprise #mining #process
- Process Mining for Job Nets in Integrated Enterprise Systems (SK, YM, MA, SM), pp. 299–310.
- SAC-2010-GuoH #algorithm #clustering
- A two stage yard crane workload partitioning and job sequencing algorithm for container terminals (XG, SYH), pp. 2383–2388.
- ASPLOS-2010-EyermanE #modelling #probability #scheduling #smt
- Probabilistic job symbiosis modeling for SMT processor scheduling (SE, LE), pp. 91–102.
- HPDC-2010-HermenierLM #clustering
- Cluster-wide context switch of virtualized jobs (FH, AL, JMM), pp. 658–666.
- HPDC-2010-YuanYWZ #named #parallel #predict #scheduling #strict
- PV-EASY: a strict fairness guaranteed and prediction enabled scheduler in parallel job scheduling (YY, GY, YW, WZ), pp. 240–251.
- CASE-2009-GirishJ #algorithm #flexibility #optimisation #problem #scheduling
- A particle swarm optimization algorithm for flexible job shop scheduling problem (BSG, NJ), pp. 298–303.
- DocEng-2009-NunesGKNCF #performance #profiling
- Job profiling in high performance printing (TN, FG, MLK, RN, AC, LGF), pp. 109–118.
- ICALP-v1-2009-Jansen #constant #scheduling #using
- An EPTAS for Scheduling Jobs on Uniform Processors: Using an MILP Relaxation with a Constant Number of Integral Variables (KJ), pp. 562–573.
- KDD-2009-ZhangFPGS #streaming #towards
- Toward autonomic grids: analyzing the job flow with affinity streaming (XZ, CF, JP, CGR, MS), pp. 987–996.
- SAC-2009-MoallemL #distributed #grid #scheduling #using
- Using artificial life techniques for distributed grid job scheduling (AM, SAL), pp. 1091–1097.
- HPDC-2009-SonmezYIE #evaluation #predict #queue #runtime
- Trace-based evaluation of job runtime and queue wait time predictions in grids (OOS, NY, AI, DHJE), pp. 111–120.
- CASE-2008-Monch #heuristic #parallel
- Heuristics to minimize total weighted tardiness of jobs on unrelated parallel machines (LM), pp. 572–577.
- ICALP-A-2008-JansenT #algorithm #approximate #parallel #scheduling
- Approximation Algorithms for Scheduling Parallel Jobs: Breaking the Approximation Ratio of 2 (KJ, RT), pp. 234–245.
- ICALP-A-2008-Plaxton #performance #scheduling
- Fast Scheduling of Weighted Unit Jobs with Release Times and Deadlines (CGP), pp. 222–233.
- ICEIS-SAIC-2008-CubillosER #multi #scheduling
- A Multiagent System for Job-Shop Scheduling (CC, LE, NR), pp. 148–153.
- SEKE-2008-DasguptaEFKSV #design #fault tolerance #grid #standard #using
- Design of a Fault-tolerant Job-flow Manager for Grid Environments Using Standard Technologies, Job-flow Patterns, and a Transparent Proxy (GD, OE, LF, SK, SMS, BV), pp. 814–819.
- HPDC-2008-PasqualiBCRL #scalability
- A two-level scheduler to dynamically schedule a stream of batch jobs in large-scale grids (MP, RB, GC, LR, DL), pp. 231–232.
- HPDC-2008-ShrinivasN #data mining #detection #grid #mining
- Issues in applying data mining to grid job failure detection and diagnosis (LS, JFN), pp. 239–240.
- HCI-MIE-2007-SimeoniEGPRMT #concept #interactive #standard
- Innovative TV: From an Old Standard to a New Concept of Interactive TV — An Italian Job (RS, LE, EG, MP, AR, RM, FT), pp. 971–980.
- SIGIR-2007-YiAC #modelling
- Matching resumes and jobs based on relevance models (XY, JA, WBC), pp. 809–810.
- HPDC-2007-HackerM #queue #reliability #using
- Using queue structures to improve job reliability (TJH, ZM), pp. 43–54.
- CASE-2006-RaghavanV #optimisation #parallel #product line #scheduling #using
- Scheduling Parallel Batch Processors with Incompatible Job Families Using Ant Colony Optimization (NRSR, MV), pp. 507–512.
- SAC-2006-DuranX #algorithm #scheduling #search-based
- The effects of two replacement strategies on a genetic algorithm for scheduling jobs on computational grids (BD, FX), pp. 960–961.
- HPDC-2006-DobberMK #effectiveness #grid #predict #scalability
- Effective Prediction of Job Processing Times in a Large-Scale Grid Environment (MD, RDvdM, GK), pp. 359–360.
- HPDC-2006-KhannaVCKKSS #data-driven #replication #scheduling
- Task Scheduling and File Replication for Data-Intensive Jobs with Batch-shared I/O (GK, NV, ÜVÇ, TMK, SK, PS, JHS), pp. 241–252.
- HPDC-2006-MalewiczFRW #evaluation
- A Tool for Prioritizing DAGMan Jobs and Its Evaluation (GM, ITF, ALR, MW), pp. 156–168.
- HPDC-2006-WeinbergS #game studies
- When Jobs Play Nice: The Case For Symbiotic Space-Sharing (JW, AS), pp. 361–362.
- HPDC-2006-Yom-TovA #estimation #requirements
- Improving Resource Matching Through Estimation of Actual Job Requirements (EYT, YA), pp. 367–368.
- CASE-2005-ChiangF #problem #scheduling
- An iterative refining mechanism for general job shop scheduling problems (TCC, LCF), pp. 203–208.
- ICEIS-v4-2005-SaleemB #algorithm #grid #scheduling #search-based #using
- Job Scheduling in Computational Grid Using Genetic Algorithm (MS, SB), pp. 163–169.
- HPDC-2005-EnglandWS #metric #robust #scheduling
- A new metric for robustness with application to job scheduling (DE, JBW, JS), pp. 135–143.
- HPDC-2005-SabinSS #assessment #multi
- Assessment and enhancement of meta-schedulers for multi-site job sharing (GS, VS, PS), pp. 144–153.
- ICALP-2004-ChrobakJST #online #scheduling
- Online Scheduling of Equal-Length Jobs: Randomization and Restarts Help (MC, WJ, JS, TT), pp. 358–370.
- ICEIS-v2-2004-EnnigrouG #approach #flexibility #multi #problem #scheduling
- Multi-Agent Approach Based on Tabu Search for the Flexible Job Shop Scheduling Problem (ME, KG), pp. 22–28.
- SAC-2004-BaggioWE #scheduling #workflow
- Applying scheduling techniques to minimize the number of late jobs in workflow systems (GB, JW, CAE), pp. 1396–1403.
- SAC-2004-CaldeiraMR #algorithm #hybrid #problem #using
- Using a hybrid Evolutionary-Taboo Algorithm to solve Job Shop Problem (JPC, FM, ACR), pp. 1446–1451.
- ICEIS-v1-2003-FatoohiG #distributed #execution #using #web
- A Distributed Job Execution Environment Using Asynchronous Messaging and Web Technologies (RF, NG), pp. 246–251.
- ICEIS-v4-2003-DafoulasNT
- Electronic Job Marketplaces: A Newly Established Manifestation of E-Business (GAD, ANN, MT), pp. 197–205.
- TACAS-2002-AbdeddaimM #automaton #scheduling #using
- Preemptive Job-Shop Scheduling Using Stopwatch Automata (YA, OM), pp. 113–126.
- TACAS-2002-ChaH #constraints #distributed #execution #realtime #validation
- Validating Timing Constraints of Dependent Jobs with Variable Execution Times in Distributed Real-Time Systems (HC, RH), pp. 83–97.
- ICGT-2002-BeckPS #graph transformation #problem #scheduling
- Graph Transformations for the Vehicle Routing and Job Shop Scheduling Problems (JCB, PP, ES), pp. 60–74.
- CSCW-2002-GrassoM #question
- Who can claim complete abstinence from peeking at print jobs? (AG, JLM), pp. 296–305.
- ICEIS-2002-YooM #multi #scheduling #using
- Using Multi-Agent System for Dynamic Job Shop Scheduling (MJY, JPM), pp. 517–525.
- HPDC-2002-LaszewskiGPF #execution #grid #named #query
- InfoGram: A Grid Service that Supports Both Information Queries and Job Execution (GvL, JG, CJP, ITF), pp. 333–342.
- HPDC-2002-SubramaniKSS #distributed #multi #scheduling #using
- Distributed Job Scheduling on Computational Grids Using Multiple Simultaneous Requests (VS, RK, SS, PS), p. 359–?.
- HPDC-2001-ToonenALFGGBK #parallel #process
- Interfacing Parallel Jobs to Process Managers (BRT, DA, ELL, ITF, WG, EG, RB, NTK), pp. 431–432.
- CAV-2001-AbdeddaimM #automaton #scheduling #using
- Job-Shop Scheduling Using Timed Automata (YA, OM), pp. 478–492.
- ICALP-2000-JansenP #approximate #multi #scheduling
- Polynominal Time Approximation Schemes for General Multiprocessor Job Shop Scheduling (KJ, LP), pp. 878–889.
- ICEIS-2000-KostarasMMP #industrial #multi #problem #scalability
- Solving Large Scale Multi-Criteria Job Sequencing Problems in Real Industrial Environments (GK, IM, GM, JEP), pp. 157–162.
- HPDC-2000-XiaoZK #clustering #memory management #migration #network #ram
- Incorporating Job Migration and Network RAM to Share Cluster Memory Resources (LX, XZ, SAK), pp. 71–78.
- PODS-1999-MoreMS #performance
- Efficient Sequencing Tape-Resident Jobs (SM, SM, EAMS), pp. 33–43.
- STOC-1999-ChenM #approximate #multi #polynomial #scheduling
- A Polynomial Time Approximation Scheme for General Multiprocessor Job Scheduling (Extended Abstract) (JC, AM), pp. 418–427.
- STOC-1999-JansenSS #approximate #polynomial
- Makespan Minimization in Job Shops: A Polynomial Time Approximation Scheme (KJ, RSO, MS), pp. 394–399.
- STOC-1999-SkutellaW #parallel
- A PTAS for Minimizing the Weighted Sum of Job Completion Times on Parallel Machines (MS, GJW), pp. 400–407.
- HCI-EI-1999-LindstromH #difference #industrial
- VDT Use and its Relation to Job Stress in Various Sectors of industry in Finland: Qualitative Differences (KL, VH), pp. 187–192.
- HPDC-1999-ZotkinK #estimation #performance
- Job-Length Estimation and Performance in Backfilling Schedulers (DNZ, PJK), pp. 236–243.
- STOC-1998-FeigeS #bound #scheduling
- Improved Bounds for Acyclic Job Shop Scheduling (Extended Abstract) (UF, CS), pp. 624–633.
- HPDC-1998-AidaTNMN #effectiveness #evaluation #performance #scheduling
- A Performance Evaluation Model for Effective Job Scheduling in Global Computing Systems (KA, AT, HN, SM, UN), pp. 352–353.
- STOC-1997-EdmondsCBD #execution #multi #scheduling
- Non-clairvoyant Multiprocessor Scheduling of Jobs with Changing Execution Characteristics (Extended Abstract) (JE, DDC, TB, XD), pp. 120–129.
- CHI-1997-ScholtzSLN #design #named
- Design: No Job too Small (JS, TS, PL, JN), pp. 447–454.
- HCI-CC-1997-Jarvenpaa
- Longitudinal Studies of Organizational Change in Administrative Jobs (EJ), pp. 369–372.
- HCI-CC-1997-TrybusV #adaptation #health
- Job Adaptation for a Reverse Transformation Dynamics in Pre-Retirement: A Way to Health and Longevity (RJT, VFV), pp. 841–846.
- HCI-SEC-1997-EnkawaU #information management
- Transfering Experts’ Jobs to Novices and Computers by Information Sharing in Office Work (TE, HU), pp. 291–294.
- SAC-1997-Vakhania #parallel
- Sequencing jobs with readiness times and tails on parallel machines (NV), pp. 438–446.
- HPDC-1996-AgasaveeranL #distributed #multi #scheduling
- Distributed Job Scheduling in SCI Local — Area Multiprocessors (SA, QL), pp. 606–615.
- PLILP-1994-BreitingerL #scheduling
- Improving Search for Job-Shop Scheduling with CLP(FD) (SB, HCRL), pp. 277–291.
- STOC-1993-FeldmannKST #dependence #online #parallel #scheduling
- Optimal online scheduling of parallel jobs with dependencies (AF, MYK, JS, SHT), pp. 642–651.
- HCI-ACS-1993-AsakuraF #health
- The Impact of Compuer Technology on Job Characteristics and Workers Health (TA, YF), pp. 982–987.
- HCI-ACS-1993-CarayonJH #design
- Effect of Job Control on the Design of Jobs and Stress Among Computer Users (PC, EJ, CH), pp. 863–868.
- HCI-ACS-1993-CockeWA #health #modelling #physics
- Models of Job Enlargement Tested and Evaluated from the Point of View of Physical Health and Job Satisfaction (BC, GW, EÅ), pp. 845–850.
- HCI-ACS-1993-Khaleque
- Job Stress, Fatigue, Jub Involvement and Satisfaction of Manual and Computerized Bank Employees (AK), pp. 943–948.
- HCI-ACS-1993-Lindstrom #design
- Finnish Longitudianl Studies of Job Design and VDT Work (KL), pp. 697–702.
- HCI-ACS-1993-LindstromLP #implementation
- Follow-up of Job Demands and Strain Symptoms after Implementation of New VDT Applications in an Insurance Company (KL, TL, MP), pp. 1005–1010.
- HCI-ACS-1993-Soares
- Data-Preparation Clerks in Brazilian Data Processing Centres: The Unskilled and Unhealthy New Jobs (AS), pp. 886–890.
- HCI-ACS-1993-YangC #performance
- Effects of Computer System Performance and Job Support on Stress Among Office Workers (CLY, PC), pp. 931–936.
- HCI-SHI-1993-YuT #performance
- Musculoskeletal Discomfort and Job Performance of Keyboard Operators (ITSY, HSCT), pp. 1058–1063.
- STOC-1992-AwerbuchKP #distributed #scheduling
- Competitive Distributed Job Scheduling (Extended Abstract) (BA, SK, DP), pp. 571–580.
- KR-1992-XiongSS #backtracking #scheduling
- Intelligent Backtracking Techniques for Job Shop Scheduling (YX, NMS, KPS), pp. 14–23.
- HCI-SES-1987-Cornell #performance
- Job Performance and QWL in a Data Entry Task (PTC), pp. 59–66.
- HCI-SES-1987-KaplanD #implementation #information management
- Job-Related Responses to a Clinical Laboratory Computer Information System Seven Months Post Implementation (BK, DD), pp. 17–24.
- HCI-SES-1987-SmithCM #monitoring
- Electronic Monitoring and Job Stress (MJS, PC, KM), pp. 33–42.
- DAC-1979-Bresnen #automation #metric
- Automation of manufacturing planning, shop loading and work measurement in an engineering job shop environment (EJB), pp. 215–221.