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Manipulating derivation forests by scheduling techniques

Jakob Gonczarowski, Manfred K. Warmuth
1986 Theoretical Computer Science  
We develop various kinds of pumping, obtaining bounds on the sizes of k-derivations and k-derivation forests.  ...  We solve the various membership problems left open in (Gonczarowski/Warmuth, 1985) , for arbitrary grammars, using Scheduling Theory.  ...  Manipulating derivation forests by scheduling techniques 93 We now proceed to define schedules on forests.  ... 
doi:10.1016/0304-3975(86)90042-3 fatcat:x4i2qrnzgndh5aix7vme4lqnaa

Scheduling spatial arrangement and harvest simultaneously

Paul Van Deusen
2001 Silva Fennica  
It also works with a mapped set of polygons/forest stands and does not require a gridded system.  ...  Scheduling spatial arrangement and harvest simultaneously. Silva Fennica 35(1): 85-92.  ...  Mathematical programming techniques have been used to spatially manipulate a managed landscape to improve wildlife habitat (Hof and Raphael 1993 , Hof and Joyce 1993 , and Hof et al. 1994 .  ... 
doi:10.14214/sf.605 fatcat:435fiwnekbezngffkpulw5zyka

Research into the process of loading wood assortments by a tractor-mounted hydraulic manipulator of a tractor-trailer train

Mikhail Smirnov, Yurii Shirnin, Alexander Shirnin, Yurii Andrianov
2019 Istrazivanja i projektovanja za privredu  
With a help from mathematical modeling and optimization method, the closed-form optimal fabrication-shipment policy is derived.  ...  Inspired by these factors, this study developed a decision model for managers to investigate the joint impacts of quality-assured issues, overtime, and multi-shipment plan on optimal fabrication-shipment  ...  area; 4. develop a technique for energy costs calculation under forest products loading with a truck-mounted hydraulic manipulator of a self-loading tractor-trailer train.  ... 
doi:10.5937/jaes17-20745 fatcat:rarxiys37fcchaplugmhbjuygu

Discordance between 'actual' and 'scheduled' check-in times at a heart failure clinic

Eiran Z. Gorodeski, Emer Joyce, Benjamin T. Gandesbery, Eugene H. Blackstone, David O. Taylor, W. H. Wilson Tang, Randall C. Starling, Rory Hachamovitch, Ashham Mansur
2017 PLoS ONE  
The distribution of minimal depths (D v ) across the forest was calculated, and the mean D v was derived.  ...  We used Wickham's tidyr and dplyr libraries for data tidying and manipulation, lubridate [10] library for manipulation of dates and times, and ggplot2 [11] for data visualization and graphics.  ... 
doi:10.1371/journal.pone.0187849 pmid:29136649 pmcid:PMC5685632 fatcat:ldj3jcmr6jgtnlap7vx3hes3oi

Consanguine Philosophies of Traditional Timber-Based and Contemporary Sustainability-Based Forest Resource Management Plans

Thomas J. Straka, Robert D. Tew, Tamara L. Cushing
2013 Natural Resources  
We contrast the traditional timber management plan with today's sustainable forest management plan, realizing the basis of both plans is by definition the forest or the timber.  ...  One cannot ignore the fact that all forest management plans accomplish silvicultural objectives via manipulation of timber density variables, like stocking and spacing.  ...  Wildlife values, recreation values, water values, aesthetic values, all are manipulated by manipulating the timber resources.  ... 
doi:10.4236/nr.2013.45048 fatcat:6onf64kyc5gnpc7gbwzjis3jaa

A pumping result for 2-context-free languages

Kai Salomaa
1988 Theoretical Computer Science  
Here, using the scheduling theory approach as introd ed by Gonczarowski and Warmuth (1985), we prove a pumping property of 2-context-free languages.  ...  Languages that are generated by context-free grammars in k-parallel derivations (i.e., at each step exactly k nonterminals, k 2 1, are rewritten) are called k-context-free languages.  ...  In proving the pumping property we rely extensively on scheduling theory arguments. The use of scheduling techniques for manipulating derivation forests was introduced in [d, 71.  ... 
doi:10.1016/0304-3975(88)90070-9 fatcat:4n4qfmb4i5antfpr3mac3dkd44

Treegraph-based Instruction Scheduling for Stack-based Virtual Machines

Jiin Park, Jinhyung Park, Wonjoon Song, Songwook Yoon, Bernd Burgstaller, Bernhard Scholz
2011 Electronical Notes in Theoretical Computer Science  
Treegraph nodes encapsulate computations that can be represented by DFS trees.  ...  Code-generation then reduces to scheduling of treegraph nodes in the most cost-effective way. We implemented a treegraph-based instruction scheduler for the LLVM compiler infrastructure.  ...  The "Treegraph scheduling" data in Figure 4 denotes the improvement of our treegraph scheduling technique over ST/LD.  ... 
doi:10.1016/j.entcs.2011.11.004 fatcat:gezdtsb6wzelvc3hdbwlvw7lny

Page 251 of Journal of Forestry Vol. 53, Issue 4 [page]

1955 Journal of Forestry  
Apri 1955 that the planning agent setting the growth goal is able, and intends, to manipulate the costs of produe- direct regulation, or by subsidy or taxation or other tion—either by indirect means—in  ...  Forest and more likely Service workers stem from an in valid analysis The Second Criterion Test The second eriterion states that the methodology should specifically recognize the techniques and pecu liarities  ... 

A Transportation-Scheduling System for Managing Silvicultural Projects

Jorge F. Valenzuela, H. Hakan Balci, Timothy McDonald
2005 International Journal of Forest Engineering  
The approach has been tested using data provided by a silvicultural contractor located in Alabama.  ...  An essential problem in managing silviculm projects is to eaciently schedule the operations while considering project task due dates and costs of moving scarce resources to specific job locations.  ...  This research was supported by the USDA Forest Ser ice Forest Operations Research Unit.  ... 
doi:10.1080/14942119.2005.10702508 fatcat:s76pzeeuvrcivlydlhpnvda2uq

Univariate Time Series Prediction of Wind speed with a case study of Yanbu, Saudi Arabia

2021 International Journal of Advanced Trends in Computer Science and Engineering  
Modern machine learning techniques including neural networks have been widely utilized for this purpose.  ...  This paper considers the prediction of wind energy as a univariate time series (UVT) prediction problem and employs major prediction algorithms including the K-Nearest Neighbors (kNN), Random Forest (RF  ...  The weights ⍺ i are also depending on the distance d j . 4.5Random Forest model Random Forest model [44] make use of decision trees to capture the non-linearity in the data by dividing the space into  ... 
doi:10.30534/ijatcse/2021/361012021 fatcat:t5d5uxhbu5afhc6a2rqhrlfh6m

Application of Machine Learning Techniques to Predict a Patient's No-Show in the Healthcare Sector

Luiz Henrique A. Salazar, Valderi R. Q. Leithardt, Wemerson Delcio Parreira, Anita M. da Rocha Fernandes, Jorge Luis Victória Barbosa, Sérgio Duarte Correia
2021 Future Internet  
The health sector faces a series of problems generated by patients who miss their scheduled appointments.  ...  The best model result was performed by the Random Forest classifier. It had the best Recall Rate (0.91) and achieved an ROC curve rate of 0.969.  ...  According to [42] , in this technique, a dataset is randomly divided into k disjoint folds of approximately equal size, and each fold is in turn used to test the model derived by a classification algorithm  ... 
doi:10.3390/fi14010003 fatcat:htsyylngmzfnlaqbekrjabbfja

REVIEWS

A. J. GRAYSON
1984 Forestry (London)  
by foresters and ecologists, and the reality of a strong policy interest in forest products demand and supply.  ...  Other papers concentrate on ways of manipulating growing stock information combined with cost data, and on investment appraisal.  ... 
doi:10.1093/forestry/57.2.217 fatcat:kffm7bkh3ncbhisqxuek3ano4a

Valuing habitat regime models for the red-cockaded woodpecker in Mississippi

Stephen C. Grado, Donald L. Grebner, Rebecca J. Barlow, Rebecca O. Drier
2009 Journal of Forest Economics  
The data set was then analyzed using the USDA Forest Service based forest planning software, Spectrum. An important input in the model is habitat quality relative to various forest practices.  ...  The management of forested wildlife habitat across different regions in Mississippi is of great concern to both forest managers and the public.  ...  FO 367 of the Forest and Wildlife Research Center, Mississippi State University.  ... 
doi:10.1016/j.jfe.2009.03.001 fatcat:j2qpsl3mc5d57bzw3v32kksoiu

A novel IV cocaine self-administration procedure in rats: differential effects of dopamine, serotonin, and GABA drug pre-treatments on cocaine consumption and maximal price paid

Erik B. Oleson, Jasmine M. Richardson, David C. S. Roberts
2010 Psychopharmacology  
Materials and methods-We recently developed a technique that provides an independent assessment of both behavioral concepts within the same experimental session.  ...  For example, appetitive behavior can be assessed with a progressive ratio schedule, whereas consummatory behavior is typically measured using a fixed ratio schedule.  ...  Acknowledgments Funding for this study was provided by grants R01DA14030 (DCSR) and F31DA024525 (EBO). We would like to thank Leanne N.  ... 
doi:10.1007/s00213-010-2058-6 pmid:21110008 pmcid:PMC3289955 fatcat:gpggr7k4rfd2hkne6r423h6sn4

CAVITY EXCAVATION AND ENLARGEMENT AS MECHANISMS FOR INDIRECT INTERACTIONS IN AN AVIAN COMMUNITY

Lori A. Blanc, Jeffrey R. Walters
2008 Ecology  
We found that a single-species management technique could potentially disrupt this indirect relationship by affecting Northern Flicker cavity-excavation behavior.  ...  This study is the first demonstration of how experimental cavity manipulation can be used to test inferred processes derived from a nest web and highlights the need to understand how mechanisms underlying  ...  Experimental manipulation and valuable logistical support were provided by K. Gault, J. Kowalsky, L. Oztolaza, A. Butler, and L. Phillips. We thank L. Adler, C. Haas, R. Jones, and D.  ... 
doi:10.1890/07-0219.1 pmid:18409439 fatcat:h5dyltavy5cmto2g4qg5jtksge
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