We present a general purpose model for routing user requests, e.g. queries, in a network of autonomous heterogeneous databases. The database schemas and other information on the database nodes are used to construct a ...
详细信息
This paper mentions an approach which composes melodies reflecting user's feelings by interactive genetic algorithms. One melody corresponds to a chromosome containing the information such as tone color, tune, the...
详细信息
The impingement of fuel sprays on the piston surface significantly affects mixture formation, combustion performance, and pollutant emissions in Direct-Injection Spark-Ignition (DISI) engines. To better understand the...
详细信息
With the advance of network technology in recent years, the dissemination and exchange of massive documents has become commonplace. Accordingly, the importance of content analysis techniques is increasing. Topic analy...
详细信息
ISBN:
(纸本)9781581139648
With the advance of network technology in recent years, the dissemination and exchange of massive documents has become commonplace. Accordingly, the importance of content analysis techniques is increasing. Topic analysis in large-scale document streams such as E-mails and news articles is an important research issue. This paper addresses techniques for "topic activation analysis" for document streams. For example, when news articles with a strong relationship to a given topic arrive frequently in a news stream, we can regard the activation level of the topic as high. In [I], Kleinberg proposed a method for analyzing document streams. Although the main objective of his method was to detect bursts of topics, it can also be used for topic activation analysis. His method, however, has a serious limitation in that it only looks at the arrival rate of documents and ignores the degree of relevance for each document. Another limitation is that his method is "batch-oriented." This paper first proposes a novel topic activation analysis scheme that incorporates both document arrival rate and relevance to address the first problem. It then presents an incremental scheme more appropriate for a document streaming environment. The proposed schemes are validated by experiments using real CNN news articles. Copyright 2005 ACM.
作者：
Ameer, B.Krarti, M.Department of Civil
Environmental and Architectural Engineering Building Systems Program University of Colorado Boulder Boulder 80309 CO United States
In this paper, a review of the current literature in modeling urban heat island (UHI) phenomena including its main causes and effects is summarized. The main goal of the review is to assess the current modeling capabi...
详细信息
This paper proposes a "robot tele-teaching system using a VR device"as a new robot teaching method to replace the conventional robot teaching method. Currently we still need teach-pendant to teach industrial...
详细信息
A gauge block evaluation system was developed and its uncertainty estimation was performed for distance determination using the repetition interval of a femtosecond optical frequency comb - the national standard tool ...
详细信息
We proposed pulse repetition interval-based Excess Fraction (PRIEF) method which can be realized in a modified Michelson interferometer for an arbitrary and absolute length measurement directly linked to a femtosecond...
详细信息
ISBN:
(纸本)9780956679000
We proposed pulse repetition interval-based Excess Fraction (PRIEF) method which can be realized in a modified Michelson interferometer for an arbitrary and absolute length measurement directly linked to a femtosecond optical frequency comb. In the modified Michelson interferometer an arbitrary and absolute distance can be estimation as an integral multiples and a fraction of the pulse repetition interval. The PRIEF method can be regarded as a multi-pulse repetition interval version of the multiple pulse train interference-based length measurement method. We can measure a fraction part by determining the distance between the peaks of an obtained multiple pulse trains interference fringes, and use conventional Excess Fraction method to decide integer part for an arbitrary and absolute length.
暂无评论