VLDB 2026 Research / reviewers in the wild / expert
Changzhen Ji
dblp:277/0872
· DBLP profile ↗
3ranked-venue papers
3as first author
2since 2021 · last 2022
—ORCID · none
Domains — the database's venue-derived domains; a paper can count in several
Artificial intelligence and machine learning · 3 · 3 first-author · 2 since 2021Databases, data management, data science and information retrieval · 1 · 1 first-author · 1 since 2021
Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.
| Artificial intelligence
1 paper |
Question answering and dialogue systems · 50% Language models and text generation · 50% |
Topics — the 2 heaviest of 2, each with the papers that count most for it
| Topic | Weight | Papers | Last | Evidence papers |
|---|---|---|---|---|
Natural language and speech › Language models and text generation › text generation › neural text generation
copy mechanism |
0.4 | 1 | 2020 | Cross Copy Network for Dialogue Generation · EMNLP (1) 2020 |
Natural language and speech › Question answering and dialogue systems
dialogue generation |
0.4 | 1 | 2020 | Cross Copy Network for Dialogue Generation · EMNLP (1) 2020 |
Methods — techniques the papers use, named apart from their topics
cross copy network · 0.4
| Year | Publication | Venue | Position |
|---|---|---|---|
| 2022 | Toward automatic support for leading court debates: a novel task proposal & effective approach of judicial question generation
Changzhen Ji, Xiaozhong Liu 0001, Adam Jatowt, Sourav S. Bhowmick, Changlong Sun, Conghui Zhu, Tiejun Zhao |
Neural Comput. Appl. | 1 |
| 2021 | A Neural Conversation Generation Model via Equivalent Shared Memory InvestigationabstractConversation generation as a challenging task in Natural Language Generation (NLG) has been increasingly attracting attention over the last years. A number of recent works adopted sequence-to-sequence structures along with external knowledge, which successfully enhanced the quality of generated conversations. Nevertheless, few works utilized the knowledge extracted from similar conversations for utterance generation. Taking conversations in customer service and court debate domains as examples, it is evident that essential entities/phrases, as well as their associated logic and inter-relationships, can be extracted and borrowed from similar conversation instances. Such information could provide useful signals for improving conversation generation. In this paper, we propose a novel reading and memory framework called Deep Reading Memory Network (DRMN) which is capable of remembering useful information of similar conversations for improving utterance generation. We apply our model to two large-scale conversation datasets of justice and e-commerce fields. Experiments prove that the proposed model outperforms the state-of-the-art approaches. Changzhen Ji, Xiaozhong Liu 0001, Adam Jatowt, Changlong Sun, Conghui Zhu, Tiejun Zhao |
CIKM | 1 |
| 2020 | Cross Copy Network for Dialogue Generationabstract07 2 8 22 0 2 02 !7" 2 #$% &' () (* + ' + ,+ -./0-12(.3 .456#$%&' (672' ($ 83 ' &$&$9% .,:6#$(4;2.,672' ($ ) (<' $($=(' >-% * ' + 5?3 ..@' (4+ .(6=A8BCDEFEGHIJGKIILMBINOPQREBMCSORTURTUMCVGWHTKEXTXTYEUBMBIN KEJZ[\HEU]ETUTMQ]JO BFTU^KIU^M_BKHGTIXTIMBINOPBIU^FJEOGDCFTIWHFEGMQ]JMBU `a3 8 1b8 ) (+ 2-:$* +/ -c5-$% * 6$,<' -(1-*/ % .@<'/ / -% -(+ d-3 <*c' + (-* *+ 2-$12' ->-@-(+ *./* -e,-(1-f + .f* -e,-(1-@.<-3*g -h 4h 6iA0jk$+ + -(+ ' .(6l.' (+ -%9-(-% $+ .%m-+c.% n*$(<0% $(* / .%@-% o + .-(2$(1-<'$3 .4,-1.(+ -(+4-(-% $+ ' .(hp2' 3 -1.(+-(+q,-(15$(<$11,% $15./ + -(* -% >-$*+ 2-@$r .%'(<' 1$+ .%*/ .%@.<-3+ % $' (' (46<' $3 .4,-3.4'1* 61$% % 5' (41% ' + ' 1$3' (/ .%@$+ ' .(/.%*.@-:$%+ ' 1,3 $%<.@$' (* 6$% -./ + -(' 4(.% - ' 1-$(<1.,%+<-&$+ -<' $3 .4,-$*-s$@:3 -* 61.@:$+ ' &3 -3 .4'1*1$(&-.&*-% >-< $1% .**<' / / -% -(+<' $3 .4,-'(* + $(1-* 6$(<+ 2' *' (f / .%@$+ ' .(1$(:%.>'<->' + $3->' <-(1-/ .%,++ -% f $(1-4-(-% $+ ' .(h)(+ 2' *:$:-% 6c-:% .:.* -$ (.>-3(-+ c.% n$% 12' + -1+ ,% -f7% .**7.:5m-+ f c.% n*g 006o+ .-s:3.%-+ 2-1,% % -(+<' $3 .41.(+ -s+$(<* ' @' 3 $%<' $3 .4,-'(* + $(1-* t3 .4'1$3 * + % ,1+ ,% -* ' @,3 + $(-.,* 3 5h us:-% ' @-(+ *c' + 2 + c.+ $* n* 61.,% +<-&$+ -$(<1,* + .@-%*-% >' 1-1.(+ -(+4-(-% $+ ' .(6:%.>-<+2$++ 2-:% .:.* -< $3 4.% ' + 2@ ' ** ,:-% ' .%+.-s'* + ' (4* + $+ -f ./f $% + 1.(+ -(+4-(-% $+ ' .(@.<-3 * h v w 8 12 b8 2 8*$(' @:.% + $(++ $* n' (m$+ ,% $3i$(4,$4-9-(-% $f + ' .(x6y 6<' $3 .4,-4-(-%$+ ' .(-@:.c-% *$c' <-* :-1+ % ,@./$::3 ' 1$+ ' .(*6* ,12$*12$+ &.+$(<1,* f + .@-%*-% >' 1-$,+ .@$+' .(h)(+ 2-:$* +/ -c5-$% * 6 &% -$n+ 2% .,42*'(<' $3 .4,-4-(-%$+ ' .(+-12(.3 .45/ .1,*-<.($* -% ' -*./* -e,-(1-f + .f* -e,-(1-@. -%-+$3 h 6z{|}o hj.% -% -1-(+ 3 56-sf + -% ($3n(.c3-<4-' *-@:3 .5-<+.-(2$(1-@.<-3:-% / .%@$(1-hp,-+$3 hg z{|~o i' ,-+$3 hg z{|o 1$($* * ' * +<' $3 .4,-4-(-%$+ ' .(&5,*' (4n(.c3-<4-+ % ' :3 -* hA' @' 3 $% 3 56i'-+$3 hg z{|~o $r :,% n$%-+$3 h g z{|o #,$(4-+$3 hg z{|o -<<5-+$3 hg z{|~o -s:3 .%-<.1,@-(+$*n(.c3-<4-<' * 1.>-% 5/ .%<'f $3 .4,-4-(-%$+ ' .(6$(<'$-+$3 hg z{|o --+$3 h g z{z{o 92$;>' (' (-r $<-+$3 hg z{|o l$% + 2$* $% $+ 2' $( -% 6,($/ / .%<$&3 -n(.c3 -<4-1.(*+ % ,1f + ' .($(<<-/-1+ ' >-<.@$' ($<$:+ $+ ' .(%-* + % ' 1++ 2-' % ,+ ' 3 ' ;$+ ' .(h7.:5f &$* -<4-(-% $+ ' .(@.<-3 *g ' (5$3 *-+$3 h 6 z{|9,-+$3 h 6z{|o2$>-&--(c' <-3 5$<.:+ -< ' (1.(+ -(+4-(-% $+ ' .(+$* n*$(<* 2.c&-+ + -%% -* ,3 + * 1.@:$% -<+ .*-e,-(1-f + .f* -e,-(1-@.<-3*c2-( / $1- .1$&,3 $% 5:% .&3-@h02$(n*+ .+ 2-' %($+ ,% -./3 ->-% $4' (4>.1$&,3 $% 5$(<1.(+-s+ <' * + % ' &,+ ' .(*/.%1.(+ -(+1.:56'+-($&3 -*+ .1.:5e,' % ' -*/ % .@+2-1,* + .@-%*c' 3 34-+* ' @' 3 $%% -* :.(* -*/ % .@+2-* + $/ / h ) +@.+ ' >$+ -*,*+ .&,' 3 <$@.<-3+2$+1$((.+.(3 5 1.:5+ 2-1.(+ -(+c' + 2' (+ 2-,::-%1.(+-s+./+ 2-+ $% 4-+<' $3 .4,-'(* + $(1-6&,+$3 * .3-$% (+ 2-* ' @' 3 $% :$+ + -% (*$1% .**<' / / -% -(+* ' @' 3 $%1$* -*./+ 2-+ $% 4-+ ' (*+ $(1-hA,12-s+ -% ($31.:51$(&-1%' + ' 1$3' (*.@-* 1-($% ' .*h 8** 2.c(' (' 4,% -h |6c-:% .:.* -+ c.<' / / -% f -(+n' (<*./1.:5@-12$(' * @*' (+ 2' ** + ,<571 8 bb2451.(+-s+ f <-:-(<-(+' (/ .%@$+ ' .(c'+ 2' ( + 2-+ $% 4-+<' $3 .4,-'(* + $(1-6$(<21 28 b245 3 .4'1f <-:-(<-(+1.(+-(+$1% .**<' / / -% -(+t A' @' 3 $% 7$* -* tx 0y h02' */ % $@-c.%n' *3 $&-3 -<$*7% .** f 7.:5m-+ c.% n*x 006y h8*-s-@:3 $%<' $3 .4,-<-:'1+ -<6r ,<4-*@$5% -:-$+g 2.% ' ;.(+ $31.:' - $3' <$+ -+ 2-:% .:.* -<@.<-3 6c--@f :3 .5+c.<' / / -% -(+<' $3 .4,-<$+$* -+ */ % .@+c..% f + 2.4.($3<.@$'(*f $(< Changzhen Ji, Xiaozhong Liu 0001, Changlong Sun, Conghui Zhu, Tiejun Zhao |
EMNLP (1) | 1 |