Partially observable Markov decision prob lems POMDPs recently received a lot of at tention in the reinforcement learning commu nity No attention however has been paid to Levin s universal search through program space LS which is theoretically optimal for a wide variety of search problems including many POMDPs Experiments in this pa per rst show that LS can solve partially ob servable mazes POM...

I read with iriterest the recent response by Karen Sparck Jones (1983) to my suggestions (1983) on improving the extent to which published accounts of NL prototypes convey an accurate impression of the true capabilities of the systems they describe. She begins by confirming that I am "right to call for bet ter standards", and her subsequent remarks indicate that we are in principle in agreement...

Bumetanide-sensitive (BS) unidirectional fluxes of 36C1o r 22Na+ were measured in internally dialyzed squid giant axons while varying the intraor extracellular concentrations o fNa + and / o r C1-. Raising either [C1-]i or [Na+]i resulted in a concentration-dependent reduction of the BS influx of both ~6C1and 22Na +. Raising [C1-]i above 200 mM completely blocked BS influxes. However, raising [...

The problem of how best to generalize from a given learning set of input-output examples is cent ral to the fields of neural nets, statistics, approximation theory, and ar tificial in telligence. T his series of papers inv estigates this pr oblem from within an abstract and modelindep endent fr am ework and then tests some of the resulting concepts in realworld sit uations. In this abs tract fr...

Humans primitive skill of imitative learning is regarded as an origin of human intelligence because it is said that imitation is fundamental function for communication and symbol manipulation He have proposed mimesis model in order to approach to a symbol emergence framework from behavior recogni tion generation for humanoid robots This mimesis model is able to abstract observed others behavior...

all participating in a world-wide flux monitoring initiative known as FluxNet (Baldocchi et al., 2001). This study reports recent developments in mulitlayer turbulent Within FluxNet, many of the flux measurements are transport methods to compute distributions of strengths of scalar conducted within the canopy sublayer of tall forests, sources and sinks Sc as well as turbulent fluxes Fc within t...

Computer-based presentation systems enable the realization of effective and dynamic presentation styles that incorporate multiple media. In particular, they allow for the emulation of conversational styles known from personal human-human communication. In this paper, we argue that life-like characters are an effective means of encoding references to world objects in a presentation. We present a...

K e y w o r d s M o d e l reduction, reduced-order observers, Stabilization, Dominant state, Discretetime linear systems, Separation principle. 1. I N T R O D U C T I O N During the past four decades, significant at tention has been paid to the construction of reducedorder observers and stabilization using reduced-order controllers for linear control systems [1-7]. The s tandard observer design...

Molecular orbital calculations are presented for the parent sulfine and some monoand dihalogensubstituted sulfines, using ab initio and INDO methods. A partial geometry optimization was performed for nine different sulfines. Charge distributions, potential surfaces and dipole moments were calculated from the wave functions of the optimized geometries. Cis-trans interconversion barriers and elec...

Key Words--Dickite, DTA-TG-DTG, HTXRD. Hydrazine, Intercalation Complex, Kaolinite. I N T R O D U C T I O N In terca la t ion of hydraz ine in the in ter layer of kaol in minera l s has been ex tens ive ly s tudied by X-ray diff rac t ion (XRD) and spect roscopic me thods (Weiss e t al . , 1963; Ledoux and Whi te , 1966; Wada and Yamada, 1968; Range e t al . , 1969; Jackson and Abde l Kader, 19...