Extending the use of plateau-escaping macro-actions in planning

Many fully automated planning systems use a single, domain independent heuristic to guide search and no other problem specific guidance. While these systems exhibit excellent performance, they are often out-performed by systems which are either given extra human-encoded search information, or spend time learning additional search control information offline. The benefit of systems which do not require human intervention is that they are much closer to the ideal of autonomy. This document discusses a system which learns additional control knowledge, in the form of macro-actions, during planning, without the additional time required for an online learning step. The results of various techniques for managing the collection of macro-actions generated are also discussed. Finally, an explanation of the extension of the techniques to other planning systems is presented

Marvin : macro-actions from reduced versions of the instance

Marvin is a forward-chaining heuristic-search planner. The basic search strategy used is similar to FF's enforced hill-climbing with helpful actions (Hoffmann and Nebel 2001); Marvin extends this strategy, adding extra features to the search and preprocessing steps to infer information from the domain

On the inference and management of macro-actions in forward-chaining planning

In this paper we discuss techniques for online generation of macro-actions as part of the planning process and demonstrate their use in a forward chaining search planning framework. The macroactions learnt are specifically created at places in the search space where the heuristic is not informative. We present results to show that using macro-actions generated during planning can improve planning performance

The Transition Town Network: a review of current evolutions and renaissance

The Transition Network started as a movement with Transition Totnes (Devon, UK) in late 2005, with Rob Hopkins as its founder. To date it has grown to encompass 313 official Transition Network initiatives spread across the world from the UK (with roughly 50% of all initiatives) to the USA, Canada, Italy, Japan, Germany, Ireland, New Zealand, Chile, the Netherlands, Brazil and so on (Transition Network, 2010a). For any social movement, this could most certainly be described as something of a success and warrants a closer examination. Indeed, the aim of this profile is to explore the movement's aims and modus operandi, the problematics it has faced and how it is now evolving. The profile draws on my auto-ethnographic encounters with the movement in Transition Nottingham and at the recent Transition Network Conference 2010, whilst also being grounded in the material made publically available on the Transition Network and Transition Culture websites (see Transition Network, 2010b and Transition Culture, 2010a)

The Tone of Life on Social Networking Sites

Presents survey findings about American adults' views of the social and emotional climate of social networking sites, including experiences of kind or unkind behavior, those that boosted or ended a friendship, and reactions to problems

Baseline Assessment: Alaska's Capacity and Infrastructure for Prescription Opioid Misuse Prevention

The State of Alaska Department of Health and Social Services (DHSS), Division of Behavioral Health (DBH) was awarded the Partnerships for Success (PFS) grant by the Substance Abuse and Mental Health Services Administration (SAHMSA) in 2015. DBH contracted with the Center for Behavioral Health Research and Services (CBHRS) at the University of Alaska Anchorage (UAA) to conduct a comprehensive project evaluation. As part of the evaluation, CBHRS performed a baseline assessment of the state’s capacity and infrastructure related to prescription opioid misuse prevention. Researchers conducted interviews with key stakeholders representing state government, healthcare agencies, law enforcement, substance abuse research, and service agencies. Interviews were semistructured, with questions addressing five domains of interest: (1) state climate and prevention efforts; (2) partnerships and coordinated efforts; (3) policies, practices, and laws; (4) data and data monitoring; and (5) knowledge and readiness. Thirteen interviews were conducted and analyzed using a qualitative template analysis technique combined with a SWOT analysis (i.e. strengths, weaknesses, opportunities, and threats). Emergent themes are displayed in Table 1 below. Table 1. Emergent themes from SWOT analysis Strengths Weaknesses Opportunities Threats (1) New and revised policies and guidelines (2) Activities and partnerships between state agencies and communities (3) Knowledge and awareness of state leadership (1) State policy limitations (2) Insufficient detox, treatment, and recovery support resources (3) Lack of full coordination within state agencies and with communities (1) Education enrichment (2) Policy improvements (3) Expansion of treatment, recovery, and mental health support (1) State fiscal crisis (2) Prescribing practices (3) Complexity and stigma of addiction (4) Legislative support Despite limitations in sample representativeness and interview timing, participants agreed that agencies, communities, and organizations across Alaska have demonstrated great concern about the opioid epidemic and that this concern has translated into considerable efforts to address and prevent opioid misuse. Participants also noted a variety of opportunities as targets for future work, many of which would address some of the current weaknesses that exist. Results yielded clear recommendations for increasing awareness and providing education to a variety of groups, further improving relevant policies to promote prevention, and expanding services for prevention and treatment.State of Alaska, Division of Behavioral Health Grant #SP020783Executive Summary / Introduction / Methodology / Results / Discussion / Reference

New perspectives - approaches to medical education at four new UK Medical Schools

To create more UK doctors, the government has funded an increase in medical student numbers of 57% (from 3749 to 5894)1 between 1998 and 2005. This has been done by increasing student places at existing medical schools; creating shortened programmes open to science graduates; “twinning” arrangements, which host an existing curriculum at a new site; and four entirely new schools (table 1). Through reflection on our experiences and the literature evidence, we examine to what extent these new schools have a common vision and approach to undergraduate medical education, and we discuss the rationale for and likely outcomes of these new ventures

Phase Lags in the Optical-Infrared Light Curves of AGB Stars

To search for phase lags in the optical-infrared light curves of asymptotic giant branch stars, we have compared infrared data from the COBE DIRBE satellite with optical light curves from the AAVSO and other sources. We found 17 examples of phase lags in the time of maximum in the infrared vs. that in the optical, and 4 stars with no observed lags. There is a clear difference between the Mira variables and the semi-regulars in the sample, with the maximum in the optical preceding that in the near-infrared in the Miras, while in most of the semi-regulars no lags are observed. Comparison to published theoretical models indicates that the phase lags in the Miras are due to strong titanium oxide absorption in the visual at stellar maximum, and suggests that Miras pulsate in the fundamental mode, while at least some semi-regulars are first overtone pulsators. There is a clear optical-near-infrared phase lag in the carbon-rich Mira V CrB; this is likely due to C2 and CN absorption variations in the optical.Comment: AJ, in pres

Use of Electron Beam Therapy in the Treatment of Basal Cell Carcinoma

https://digitalcommons.misericordia.edu/medimg_seniorposters/1027/thumbnail.jp

Racial Injustice in Writing Instruction

In Spring 2018, I took “The Teaching of Writing” and during that course, we discussed student identity in regards to the way students experience writing instruction. For my research, I choose to focus on racial identities with students and educators. From personal experience, I didn’t feel as if my writing, as a white female, was under the same scrutiny as the minority classmates I had. There were certain assumptions that educators had pertaining to their students’ writings because of their race. I began to research why exactly this was and how to establish racial equality in writing instruction. In my research, I have found that white privilege and subliminal racism are being left unchecked and unaddressed in the instruction of writing. The main claim in my research is that the current practiced writing pedagogies, the ‘Anti-racist’ and the ‘Diversity’ approach are not effective in eliminating educational racism. I am pushing back on the way the education system handles the ideologies educators have regarding their own and their students’ racial identities. These disregarded racial identities are promoting an exclusive environment in writing instruction, thus creating an othering effect that results in students’ devaluting their personal voice and not pursuing writing further. Writing pedagogies have to strive to combat the institutionalized racism that’s present within the writing classroom. An educator must acknowledge their own racial identity and any internal racism they may have in order to actively fight for racial equality for their students. The approach that I’ve adapted to aid the systematic injustice is a multidimensional pedagogy that continuously evolves to accommodate students’ racial identity. It allows room for change and allows students to receive a personalized education with writing and in return cultivate students who not only value their voice but their racial identity