– We present a numerical study of magnetic phases of the 2D electron gas near freezing. The calculations are performed by diffusion Monte Carlo in the fixed node approximation. At variance with the 3D case we find no evidence for the stability of a partially polarized phase. With plane wave nodes in the trial function, the polarization transition takes place at rs = 20, whereas the best availab...

A method for analyz ing the structu re of the white backgr ound in docu ment images is describ ed, along with applic ations to the proble m of isolati ng blocks of machine -printe d text. The appro ach is based on computa tionalgeometry algorith ms for off-li ne enumera tion of maximal white rectan gles and on-line rectan gle unific ation. These suppo rt a fast, simple, and gener al heuri stic ...

Even with my oÆ e door partly losed, I an hear my olleagues down the hall arguing. Ea h is riti izing the other's latest theory of the mi ros opi Universe. Ba king his opponent into a orner, one a uses the other of trying to reate a theory whi h violates a fundamental symmetry of Nature. I smile to myself, be ause I know what the response will be: in this theory, there is a new parti le whi h e...

The two pho ton photoemission tech nique has been uti lized to in ves ti gate the ad sor bate elec tron af fin ity de pend ence of in ter fa cial elec tron trans fer dy nam ics. The com par i son of cal cu lated and ex per i men tal re sults high light a brief dis cus sion of a di elec tric con tin uum model. For the n-heptane/Ag(111) and the ben zene/ Ag(111) in ter faces, the model ef fec tiv...

In this paper we discuss mechanisms by which interactions on paper can be made to affect the electronic environment. We envision a framework where there is continuous, cyclical transfer of knowledge between the paper and the electronic worlds. In this paper, we will focus on analysis of paper interaction and a framework to make changes to electronic environment. There are two key contributions:...

The development of an electronic world grass flora database is described in which data for 1090 morphological characters gathered for 11,000 species in 700 genera organized according to accepted names. This descriptive information is linked to a synonym database of 60,000 names. Authors, literature references, and the status of each name are also recorded in the database along with geographical...

The "Web," an attempt to organize the electronic world, has become the focus of a wide range of research activities from agents to information retrieval to virtual reality systems, and is a central focus of work presented at this symposium. Our work considers a more humble task: that of organizing our own electronic lives. We introduce a new metaphor, Lifestreams, for dynamically organizing a u...

To speed up the training process, many existing systems use parallel technology for online learning algorithms. However, most research mainly focus on stochastic gradient descent (SGD) instead of other algorithms. We propose a generic online parallel learning framework for large margin models, and also analyze our framework on popular large margin algorithms, including MIRA and Structured Perce...

Chain breakage in DMA induced by bleomycin A (BLM) was enhanced more than 150-fold by the reduced nicotinamide adenine dinucleotide phosphate-dependent elec tron transport system of rat liver microsomes. However, the enhancement effect on DMA was partially reduced by the preincubation of BLM with the microsomal systems. BLM-Cu2' was found to stimulate considerably micro somal reduced nicotinami...

We present a new abstraction of reactive systems interacting with databases. This abstraction is intended to be used for model-based testing. We abstract the database into two sets: present set and absent set, and present a proof of this abstraction. We present two extensions of FSM, the DBFSM and PAFSM. DBFSM are a form of FSM incorporating databases. PAFSM are an abstraction of DBFSM using pr...