With the rapid development of artificial intelligence (AI) theory, particularly deep learning neural networks, robot vacuums equipped with AI power can automatically clean indoor floors by using intelligent programming and vacuuming services. To date, several models have been proposed to distinguish objects between cleanable litter noncleanable hazardous obstacles. Unfortunately, these existing...

We take the hierarchical resource allocation model in Van Zandt (2003a) and derive a simpler, reduced-form model of balanced hierarchies. This model uses continuous approximations; we derive bounds on the errors due to these approximations. We then give results that indicate that optimal hierarchies in the general model of are approximately balanced. In particular, we show that aggregation shou...

We consider a model of cake-eating with private information. The model captures phenomena such as trust and “security of supply” in resource-use relationships. It also predicts supply shocks as an equilibrium phenomenon: privately informed sellers have incentives to reveal resource scarcity too late, through a supply disruption, after which they exploit the consumers’ inability to immediately a...

Question classification is the first step that Question Answering System must dispose, the precision of question classification greatly affect the subsequent processes. In this paper, we present a new question classification method which uses HowNet as the semantic resource to extract features, and we use Maximum Entropy Model to implement the method. The results validate the effectiveness of t...

Uniform resource locators (URLs), which mark the address of a resource on the World Wide Web, are often human-readable and can indicate metadata about a resource. This paper explores the mining of URLs to yield categoric metadata about web resources via a three-phase pipeline of word segmentation, abbreviation expansion and classification. I apply this approach to the problem of subject metadat...

Uniform resource locators (URLs), which mark the address of a resource on the World Wide Web, are often human-readable and can indicate metadata about a resource. This paper explores the mining of URLs to yield categoric metadata about web resources via a three-phase pipeline of word segmentation, abbreviation expansion and classification. I apply this approach to the problem of subject metadat...

While the Differentiated Services (DiffServ) infrastructure is scalable and robust in providing network Quality of Service (QoS), there are serious drawbacks with the services provided by DiffServ: (1) the services are coarse-grained and oneway only; (2) no service differentiation and resource isolation are provided to meta-data packets such as TCP SYN and ACK packets. Moreover, the coarse-grai...

BACKGROUND Determining cause of death is needed to develop strategies to reduce maternal death, stillbirth, and newborn death, especially for low-resource settings where 98% of deaths occur. Most existing classification systems are designed for high income settings where extensive testing is available. Verbal autopsy or audits, developed as an alternative, are time-intensive and not generally f...