Báo cáo khoa học: "SEXTANT: EXPLORING UNEXPLORED CONTEXTS FOR SEMANTIC EXTRACTION FROM SYNTACTIC ANALYSIS" docx
Báo cáo khoa học: "SEXTANT: EXPLORING UNEXPLORED CONTEXTS FOR SEMANTIC EXTRACTION FROM SYNTACTIC ANALYSIS" docx
... SEXTANT: EXPLORING UNEXPLORED CONTEXTS FOR
SEMANTIC EXTRACTION FROM SYNTACTIC ANALYSIS
Gregory
Grefenstette
Computer Science Department, ...
Similarly, our SEXTANT 1 uses fine-
grained syntactically derived contexts, but de-
rives its measures of similarity from consider-
I Semantic EXtraction from Text via Analyzed Net-
works of Terms ... encoding
of semant...
Báo cáo khoa học: "A Multi-resolution Framework for Information Extraction from Free Text" pptx
... 592–599,
Prague, Czech Republic, June 2007.
c
2007 Association for Computational Linguistics
A Multi-resolution Framework for Information Extraction from Free Text
Mstislav Maslennikov and Tat-Seng Chua ... dependency path extraction. The re-
sulting system outperforms the previous
approaches by 3%, 7%, 4% on MUC4,
MUC6 and ACE RDC domains respec-
tively.
1 Introduction
Informat...
Báo cáo khoa học: "Exploiting Shallow Linguistic Information for Relation Extraction from Biomedical Literature" pdf
... interactions from
two different data sets. The results show
that our approach outperforms most of the
previous methods based on syntactic and
semantic information.
1 Introduction
Information Extraction ... documents. Applications of IE range from
Semantic Web to Bioinformatics. For example,
there is an increasing interest in automatically
extracting relevant information from b...
Tài liệu Báo cáo khoa học: A FYVE-containing unusual cyclic nucleotide phosphodiesterase from Trypanosoma cruzi docx
... (Fig. 6A,B). TcrPDEC
exhibits a K
m
for cAMP of 31.6 ± 9 lm (N ¼ 6). This
is significantly higher than the K
m
for cAMP observed
for a previously characterized PDE from T. cruzi,
TcPDE1 [14]. Unexpectedly, ... an unusual PDE from
this protozoal organism. This enzyme, TcrPDEC, is a member of the class
I PDEs, as determined from the presence of a characteristic signature
sequence and...
Tài liệu Báo cáo khoa học: "Kernels on Linguistic Structures for Answer Extraction" doc
... input of the STK. For instance,
the STK accepts the syntactic parse: (SBARQ (WHNP
(WP What))(SQ (VP (AUX is)(NP (NN autism))))(. ?)).
2.2 Semantic Structures
The intuition behind our semantic representation ... query and answer, recent
work, e.g. (Shen and Lapata, 2007) has shown that
shallow semantic information in the form of predi-
cate argument structures (PASs) improves the aut...
Báo cáo khoa học: "Edit Tree Distance alignments for Semantic Role Labelling" ppt
... predicate.
The possible semantic roles are pre-defined for
each predicate. The set of roles depends on the
corpora.
SRL is becoming an important tool for infor-
mation extraction, text summarization, ... propositions. It adds a semantic layer to the
Penn TreeBank (Marcus et al, 1994) and defines
a set of semantic roles for each predicate.
It is difficult to define universa...
Báo cáo khoa học: "Using Predicate-Argument Structures for Information Extraction" ppt
... that semantic infor-
mation, even if minimal, is important for role clas-
sification. Surprisingly, the phrasal verb collocation
features did not help for any of the tasks, but they
were useful for ... only from FS1, and
from FS1 and FS2 respectively. When comparing
the results obtained for both models when using only
features from FS1, we find that almost the same re-
sults wer...
Báo cáo khoa học: "Toward General-Purpose Learning for Information Extraction" ppt
... devel-
opment calls for information extraction systems
which are as
retctrgetable
and
general
as possi-
ble. Here, we describe SRV, a learning archi-
tecture for information extraction which ... performance with and without such
linguistic information. Surprisingly, in many
cases, the system performs as well without this
information as with it.
1 Introduction
The field of...
Báo cáo khoa học: "Automatically Creating Bilingual Lexicons for Machine Translation from Bilingual Text" ppt
...
Fig. 2 shows, in succint form, the relevant
information from the source bag, i.e. the bag
resulting from parsing the source sentence. All
the syntactic and semantic information has been
omitted ... lexicon was
used for content words. Only a bilingual lexi-
con for closed class words and a set of bilingual
templates were used. Therefore, new bilingual
entries were obtained...
Báo cáo khoa học: "Experiments on Candidate Data for Collocation Extraction" pot
... (morpho- )syntactic
relation
(adjectives modifying nouns, direct ob-
jects of verbs, or English noun-noun compounds).
The extraction of such collocations from text cor-
pora is usually performed ... differ-
ent pre-processing and extraction methods.
Our research aims to fill this gap. Currently, we
are evaluating methods for the extraction of adjec-
tive+noun pairs from German n...