8866458
Collocation Translation Acquisition Using Monolingual Corpora
Collocation translation is important for machine translation and many other NLP tasks. Unlike previous methods using bilingual parallel corpora, this paper presents a new method for acquiring collocation translations by making use of monolingual corpora and linguistic knowledge. First, dependency triples are extracted from Chinese and English corpora with dependency parsers. Then, a dependency triple translation model is estimated using the EM algorithm based on a dependency correspondence assumption. The generated triple translation model is used to extract collocation translations from two monolingual corpora. Experiments show that our approach outperforms the existing monolingual corpus based methods in dependency triple translation and achieves promising results in collocation translation extraction.
11843014
Conceptual simulation modeling of warehousing operations
This study focuses on the simulation modeling of warehousing operations commonly seen at general merchandize distribution centers. The key processes and their structural and behavioral characteristics were identified and analyzed. Robust representations and patterns were developed to represent the elements and logic of the simulation models for these processes to facilitate efficient and effective construction of the models. The issues of conceptual modeling such as synthesis, abstraction and specialization were also discussed.
409423
Exploring Distributional Similarity Based Models for Query Spelling Correction
A query speller is crucial to search engine in improving web search relevance. This paper describes novel methods for use of distributional similarity estimated from query logs in learning improved query spelling correction models. The key to our methods is the property of distributional similarity between two terms: it is high between a frequently occurring misspelling and its correction, and low between two irrelevant terms only with similar spellings. We present two models that are able to take advantage of this property. Experimental results demonstrate that the distributional similarity based models can significantly outperform their baseline systems in the web query spelling correction task.
12873535
Knowledge representation for conceptual simulation modeling
Simulation is a powerful tool that helps decision makers in business and industry to solve difficult and complex problems, reduce cost, improve quality and productivity, and shorten time-to-market. However the technology is still underutilized in many applications due to several reasons. In this study we address these issues using a knowledge engineering approach, i.e. develop efficient and robust models and formats to capture, represent and organize the knowledge for developing conceptual simulation models that can be generalized and interfaced with different applications and implementation tools. The research fits into a larger project effort that aims to create a sustained research program on knowledge-based simulation.
802139
Resume Information Extraction with Cascaded Hybrid Model
This paper presents an effective approach for resume information extraction to support automatic resume management and routing. A cascaded information extraction (IE) framework is designed. In the first pass, a resume is segmented into a consecutive blocks attached with labels indicating the information types. Then in the second pass, the detailed information, such as Name and Address, are identified in certain blocks (e.g. blocks labelled with Personal Information), instead of searching globally in the entire resume. The most appropriate model is selected through experiments for each IE task in different passes. The experimental results show that this cascaded hybrid model achieves better F-score than flat models that do not apply the hierarchical structure of resumes. It also shows that applying different IE models in different passes according to the contextual structure is effective.
2220173
Identifying Synonyms among Distributionally Similar Words
There have been many proposals to compute similarities between words based on their distributions in contexts. However, these approaches do not distinguish between synonyms and antonyms. We present two methods for identifying synonyms among distributionally similar words.
29594281
A 2-D boundary element method approach to the simulation of DMOS transistors
A boundary element method is introduced for the calculation of two-dimensional potential and electric field distributions in high-voltage DMOS transistors. An algorithm is proposed to determine the dimensions of the depletion layers in two-dimensional geometries. Regions with different permittivities are taken into account using appropriate boundary conditions. As an application, the high-voltage behavior of the DMOS transistors is investigated, and the avalanche breakdown conditions of the transistors are determined by calculating the ionization integral. The results are compared with simulations based on finite difference methods. >